perf: keep freed memory in mimalloc for dfbench and datafusion-cli

[adriangb]

mimalloc returns freed memory to the OS after 10ms by default. Query execution allocates and frees large buffers repeatedly, so pages are decommitted and faulted back in, and the kernel spends a large share of the runtime zeroing them (35% of samples in clear_page_erms on TPC-H Q18).

Set purge_delay to -1 at startup unless MIMALLOC_PURGE_DELAY is set.

[adriangb]

run benchmarks

[adriangbot]

🤖 Benchmark running (GKE) | trigger
Instance: c4a-highmem-16 (12 vCPU / 65 GiB) | Linux bench-c6117525544-3323-9bt7d 6.12.94+ #1 SMP Fri Aug 21 08:00:16 UTC 2026 aarch64 GNU/Linux

CPU Details (lscpu)

Architecture:                            aarch64
CPU op-mode(s):                          64-bit
Byte Order:                              Little Endian
CPU(s):                                  16
On-line CPU(s) list:                     0-15
Vendor ID:                               ARM
Model name:                              Neoverse-V2
Model:                                   1
Thread(s) per core:                      1
Core(s) per cluster:                     16
Socket(s):                               -
Cluster(s):                              1
Stepping:                                r0p1
BogoMIPS:                                2000.00
Flags:                                   fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh rng bti
L1d cache:                               1 MiB (16 instances)
L1i cache:                               1 MiB (16 instances)
L2 cache:                                32 MiB (16 instances)
L3 cache:                                80 MiB (1 instance)
NUMA node(s):                            1
NUMA node0 CPU(s):                       0-15
Vulnerability Gather data sampling:      Not affected
Vulnerability Indirect target selection: Not affected
Vulnerability Itlb multihit:             Not affected
Vulnerability L1tf:                      Not affected
Vulnerability Mds:                       Not affected
Vulnerability Meltdown:                  Not affected
Vulnerability Mmio stale data:           Not affected
Vulnerability Reg file data sampling:    Not affected
Vulnerability Retbleed:                  Not affected
Vulnerability Spec rstack overflow:      Not affected
Vulnerability Spec store bypass:         Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1:                Mitigation; __user pointer sanitization
Vulnerability Spectre v2:                Mitigation; CSV2, BHB
Vulnerability Srbds:                     Not affected
Vulnerability Tsa:                       Not affected
Vulnerability Tsx async abort:           Not affected
Vulnerability Vmscape:                   Not affected

Comparing perf-mimalloc-purge-delay (d46ca4e) to b9c8b3d (merge-base) diff

Run configuration

run benchmark clickbench_partitioned

Results will be posted here when complete

---

File an issue against this benchmark runner

[adriangbot]

🤖 Benchmark running (GKE) | trigger
Instance: c4a-highmem-16 (12 vCPU / 65 GiB) | Linux bench-c6117525544-3324-ls74n 6.12.94+ #1 SMP Fri Aug 21 08:00:16 UTC 2026 aarch64 GNU/Linux

CPU Details (lscpu)

Architecture:                            aarch64
CPU op-mode(s):                          64-bit
Byte Order:                              Little Endian
CPU(s):                                  16
On-line CPU(s) list:                     0-15
Vendor ID:                               ARM
Model name:                              Neoverse-V2
Model:                                   1
Thread(s) per core:                      1
Core(s) per cluster:                     16
Socket(s):                               -
Cluster(s):                              1
Stepping:                                r0p1
BogoMIPS:                                2000.00
Flags:                                   fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh rng bti
L1d cache:                               1 MiB (16 instances)
L1i cache:                               1 MiB (16 instances)
L2 cache:                                32 MiB (16 instances)
L3 cache:                                80 MiB (1 instance)
NUMA node(s):                            1
NUMA node0 CPU(s):                       0-15
Vulnerability Gather data sampling:      Not affected
Vulnerability Indirect target selection: Not affected
Vulnerability Itlb multihit:             Not affected
Vulnerability L1tf:                      Not affected
Vulnerability Mds:                       Not affected
Vulnerability Meltdown:                  Not affected
Vulnerability Mmio stale data:           Not affected
Vulnerability Reg file data sampling:    Not affected
Vulnerability Retbleed:                  Not affected
Vulnerability Spec rstack overflow:      Not affected
Vulnerability Spec store bypass:         Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1:                Mitigation; __user pointer sanitization
Vulnerability Spectre v2:                Mitigation; CSV2, BHB
Vulnerability Srbds:                     Not affected
Vulnerability Tsa:                       Not affected
Vulnerability Tsx async abort:           Not affected
Vulnerability Vmscape:                   Not affected

Comparing perf-mimalloc-purge-delay (d46ca4e) to b9c8b3d (merge-base) diff

Run configuration

run benchmark tpcds

Results will be posted here when complete

---

File an issue against this benchmark runner

[adriangbot]

🤖 Benchmark running (GKE) | trigger
Instance: c4a-highmem-16 (12 vCPU / 65 GiB) | Linux bench-c6117525544-3325-9pssz 6.12.94+ #1 SMP Fri Aug 21 08:00:16 UTC 2026 aarch64 GNU/Linux

CPU Details (lscpu)

Architecture:                            aarch64
CPU op-mode(s):                          64-bit
Byte Order:                              Little Endian
CPU(s):                                  16
On-line CPU(s) list:                     0-15
Vendor ID:                               ARM
Model name:                              Neoverse-V2
Model:                                   1
Thread(s) per core:                      1
Core(s) per cluster:                     16
Socket(s):                               -
Cluster(s):                              1
Stepping:                                r0p1
BogoMIPS:                                2000.00
Flags:                                   fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh rng bti
L1d cache:                               1 MiB (16 instances)
L1i cache:                               1 MiB (16 instances)
L2 cache:                                32 MiB (16 instances)
L3 cache:                                80 MiB (1 instance)
NUMA node(s):                            1
NUMA node0 CPU(s):                       0-15
Vulnerability Gather data sampling:      Not affected
Vulnerability Indirect target selection: Not affected
Vulnerability Itlb multihit:             Not affected
Vulnerability L1tf:                      Not affected
Vulnerability Mds:                       Not affected
Vulnerability Meltdown:                  Not affected
Vulnerability Mmio stale data:           Not affected
Vulnerability Reg file data sampling:    Not affected
Vulnerability Retbleed:                  Not affected
Vulnerability Spec rstack overflow:      Not affected
Vulnerability Spec store bypass:         Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1:                Mitigation; __user pointer sanitization
Vulnerability Spectre v2:                Mitigation; CSV2, BHB
Vulnerability Srbds:                     Not affected
Vulnerability Tsa:                       Not affected
Vulnerability Tsx async abort:           Not affected
Vulnerability Vmscape:                   Not affected

Comparing perf-mimalloc-purge-delay (d46ca4e) to b9c8b3d (merge-base) diff

Run configuration

run benchmark tpch

Results will be posted here when complete

---

File an issue against this benchmark runner

[adriangbot]

🤖 Benchmark completed (GKE) | trigger

Instance: c4a-highmem-16 (12 vCPU / 65 GiB)

Comparing perf-mimalloc-purge-delay (d46ca4e) to b9c8b3d (merge-base) diff

Run configuration

run benchmark tpch

CPU Details (lscpu)

Architecture:                            aarch64
CPU op-mode(s):                          64-bit
Byte Order:                              Little Endian
CPU(s):                                  16
On-line CPU(s) list:                     0-15
Vendor ID:                               ARM
Model name:                              Neoverse-V2
Model:                                   1
Thread(s) per core:                      1
Core(s) per cluster:                     16
Socket(s):                               -
Cluster(s):                              1
Stepping:                                r0p1
BogoMIPS:                                2000.00
Flags:                                   fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh rng bti
L1d cache:                               1 MiB (16 instances)
L1i cache:                               1 MiB (16 instances)
L2 cache:                                32 MiB (16 instances)
L3 cache:                                80 MiB (1 instance)
NUMA node(s):                            1
NUMA node0 CPU(s):                       0-15
Vulnerability Gather data sampling:      Not affected
Vulnerability Indirect target selection: Not affected
Vulnerability Itlb multihit:             Not affected
Vulnerability L1tf:                      Not affected
Vulnerability Mds:                       Not affected
Vulnerability Meltdown:                  Not affected
Vulnerability Mmio stale data:           Not affected
Vulnerability Reg file data sampling:    Not affected
Vulnerability Retbleed:                  Not affected
Vulnerability Spec rstack overflow:      Not affected
Vulnerability Spec store bypass:         Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1:                Mitigation; __user pointer sanitization
Vulnerability Spectre v2:                Mitigation; CSV2, BHB
Vulnerability Srbds:                     Not affected
Vulnerability Tsa:                       Not affected
Vulnerability Tsx async abort:           Not affected
Vulnerability Vmscape:                   Not affected

Details

Comparing HEAD and perf-mimalloc-purge-delay
--------------------
Benchmark tpch_sf1.json
--------------------
┏━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃ Query     ┃     HEAD ┃ perf-mimalloc-purge-delay ┃    Change ┃
┡━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━┩
│ QQuery 1  │ 41.06 ms │                  42.01 ms │ no change │
│ QQuery 2  │ 18.76 ms │                  18.98 ms │ no change │
│ QQuery 3  │ 28.71 ms │                  28.40 ms │ no change │
│ QQuery 4  │ 17.70 ms │                  17.42 ms │ no change │
│ QQuery 5  │ 35.32 ms │                  34.99 ms │ no change │
│ QQuery 6  │ 16.49 ms │                  16.38 ms │ no change │
│ QQuery 7  │ 42.07 ms │                  41.92 ms │ no change │
│ QQuery 8  │ 40.61 ms │                  40.54 ms │ no change │
│ QQuery 9  │ 48.74 ms │                  48.85 ms │ no change │
│ QQuery 10 │ 40.59 ms │                  40.34 ms │ no change │
│ QQuery 11 │ 13.74 ms │                  13.78 ms │ no change │
│ QQuery 12 │ 21.66 ms │                  21.45 ms │ no change │
│ QQuery 13 │ 39.97 ms │                  40.24 ms │ no change │
│ QQuery 14 │ 24.57 ms │                  24.38 ms │ no change │
│ QQuery 15 │ 31.14 ms │                  30.83 ms │ no change │
│ QQuery 16 │ 14.19 ms │                  14.26 ms │ no change │
│ QQuery 17 │ 73.18 ms │                  73.19 ms │ no change │
│ QQuery 18 │ 62.56 ms │                  61.05 ms │ no change │
│ QQuery 19 │ 32.17 ms │                  31.85 ms │ no change │
│ QQuery 20 │ 32.03 ms │                  31.79 ms │ no change │
│ QQuery 21 │ 55.68 ms │                  55.38 ms │ no change │
│ QQuery 22 │ 13.94 ms │                  14.06 ms │ no change │
└───────────┴──────────┴───────────────────────────┴───────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━┓
┃ Benchmark Summary                        ┃          ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━┩
│ Total Time (HEAD)                        │ 744.86ms │
│ Total Time (perf-mimalloc-purge-delay)   │ 742.10ms │
│ Average Time (HEAD)                      │  33.86ms │
│ Average Time (perf-mimalloc-purge-delay) │  33.73ms │
│ Queries Faster                           │        0 │
│ Queries Slower                           │        0 │
│ Queries with No Change                   │       22 │
│ Queries with Failure                     │        0 │
└──────────────────────────────────────────┴──────────┘

Distribution per query (min / mean ±stddev / max):

Comparing HEAD and perf-mimalloc-purge-delay
--------------------
Benchmark tpch_sf1.json
--------------------
┏━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query     ┃                           HEAD ┃      perf-mimalloc-purge-delay ┃        Change ┃
┡━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 1  │ 41.06 / 42.35 ±1.40 / 44.38 ms │ 42.01 / 42.99 ±1.21 / 45.26 ms │     no change │
│ QQuery 2  │ 18.76 / 18.97 ±0.26 / 19.44 ms │ 18.98 / 19.22 ±0.24 / 19.63 ms │     no change │
│ QQuery 3  │ 28.71 / 28.94 ±0.19 / 29.24 ms │ 28.40 / 28.73 ±0.30 / 29.30 ms │     no change │
│ QQuery 4  │ 17.70 / 18.88 ±1.15 / 20.85 ms │ 17.42 / 17.86 ±0.49 / 18.78 ms │ +1.06x faster │
│ QQuery 5  │ 35.32 / 36.16 ±0.72 / 37.48 ms │ 34.99 / 35.86 ±0.92 / 37.64 ms │     no change │
│ QQuery 6  │ 16.49 / 17.36 ±0.89 / 18.94 ms │ 16.38 / 16.46 ±0.07 / 16.58 ms │ +1.05x faster │
│ QQuery 7  │ 42.07 / 44.01 ±2.04 / 47.94 ms │ 41.92 / 42.39 ±0.27 / 42.74 ms │     no change │
│ QQuery 8  │ 40.61 / 41.54 ±1.18 / 43.86 ms │ 40.54 / 40.74 ±0.14 / 40.94 ms │     no change │
│ QQuery 9  │ 48.74 / 50.42 ±1.66 / 52.67 ms │ 48.85 / 50.65 ±1.26 / 52.11 ms │     no change │
│ QQuery 10 │ 40.59 / 40.87 ±0.27 / 41.37 ms │ 40.34 / 40.91 ±0.58 / 42.03 ms │     no change │
│ QQuery 11 │ 13.74 / 14.10 ±0.42 / 14.92 ms │ 13.78 / 13.89 ±0.10 / 14.01 ms │     no change │
│ QQuery 12 │ 21.66 / 21.91 ±0.19 / 22.25 ms │ 21.45 / 21.62 ±0.16 / 21.90 ms │     no change │
│ QQuery 13 │ 39.97 / 42.06 ±2.12 / 45.79 ms │ 40.24 / 40.43 ±0.22 / 40.87 ms │     no change │
│ QQuery 14 │ 24.57 / 24.95 ±0.31 / 25.45 ms │ 24.38 / 24.59 ±0.13 / 24.74 ms │     no change │
│ QQuery 15 │ 31.14 / 31.74 ±0.76 / 33.22 ms │ 30.83 / 31.32 ±0.68 / 32.66 ms │     no change │
│ QQuery 16 │ 14.19 / 14.55 ±0.42 / 15.37 ms │ 14.26 / 14.39 ±0.08 / 14.47 ms │     no change │
│ QQuery 17 │ 73.18 / 74.24 ±0.76 / 75.19 ms │ 73.19 / 74.59 ±1.59 / 77.54 ms │     no change │
│ QQuery 18 │ 62.56 / 63.64 ±0.97 / 64.85 ms │ 61.05 / 61.92 ±1.30 / 64.50 ms │     no change │
│ QQuery 19 │ 32.17 / 32.38 ±0.25 / 32.85 ms │ 31.85 / 32.46 ±0.63 / 33.64 ms │     no change │
│ QQuery 20 │ 32.03 / 32.33 ±0.24 / 32.65 ms │ 31.79 / 32.17 ±0.23 / 32.42 ms │     no change │
│ QQuery 21 │ 55.68 / 57.22 ±0.97 / 58.55 ms │ 55.38 / 56.46 ±0.83 / 57.60 ms │     no change │
│ QQuery 22 │ 13.94 / 14.19 ±0.14 / 14.30 ms │ 14.06 / 14.30 ±0.16 / 14.51 ms │     no change │
└───────────┴────────────────────────────────┴────────────────────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━┓
┃ Benchmark Summary                        ┃          ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━┩
│ Total Time (HEAD)                        │ 762.77ms │
│ Total Time (perf-mimalloc-purge-delay)   │ 753.97ms │
│ Average Time (HEAD)                      │  34.67ms │
│ Average Time (perf-mimalloc-purge-delay) │  34.27ms │
│ Queries Faster                           │        2 │
│ Queries Slower                           │        0 │
│ Queries with No Change                   │       20 │
│ Queries with Failure                     │        0 │
└──────────────────────────────────────────┴──────────┘

Resource Usage

tpch — base (merge-base)

Metric	Value
Wall time	5.0s
Peak memory	1.3 GiB
Avg memory	493.1 MiB
CPU user	21.4s
CPU sys	1.8s
Peak spill	0 B

tpch — branch

Metric	Value
Wall time	5.0s
Peak memory	1.3 GiB
Avg memory	511.1 MiB
CPU user	21.2s
CPU sys	1.7s
Peak spill	0 B

---

File an issue against this benchmark runner

[adriangbot]

🤖 Benchmark completed (GKE) | trigger

Instance: c4a-highmem-16 (12 vCPU / 65 GiB)

Comparing perf-mimalloc-purge-delay (d46ca4e) to b9c8b3d (merge-base) diff

Run configuration

run benchmark tpcds

CPU Details (lscpu)

Architecture:                            aarch64
CPU op-mode(s):                          64-bit
Byte Order:                              Little Endian
CPU(s):                                  16
On-line CPU(s) list:                     0-15
Vendor ID:                               ARM
Model name:                              Neoverse-V2
Model:                                   1
Thread(s) per core:                      1
Core(s) per cluster:                     16
Socket(s):                               -
Cluster(s):                              1
Stepping:                                r0p1
BogoMIPS:                                2000.00
Flags:                                   fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh rng bti
L1d cache:                               1 MiB (16 instances)
L1i cache:                               1 MiB (16 instances)
L2 cache:                                32 MiB (16 instances)
L3 cache:                                80 MiB (1 instance)
NUMA node(s):                            1
NUMA node0 CPU(s):                       0-15
Vulnerability Gather data sampling:      Not affected
Vulnerability Indirect target selection: Not affected
Vulnerability Itlb multihit:             Not affected
Vulnerability L1tf:                      Not affected
Vulnerability Mds:                       Not affected
Vulnerability Meltdown:                  Not affected
Vulnerability Mmio stale data:           Not affected
Vulnerability Reg file data sampling:    Not affected
Vulnerability Retbleed:                  Not affected
Vulnerability Spec rstack overflow:      Not affected
Vulnerability Spec store bypass:         Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1:                Mitigation; __user pointer sanitization
Vulnerability Spectre v2:                Mitigation; CSV2, BHB
Vulnerability Srbds:                     Not affected
Vulnerability Tsa:                       Not affected
Vulnerability Tsx async abort:           Not affected
Vulnerability Vmscape:                   Not affected

Details

Comparing HEAD and perf-mimalloc-purge-delay
--------------------
Benchmark tpcds_sf1.json
--------------------
┏━━━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query     ┃       HEAD ┃ perf-mimalloc-purge-delay ┃        Change ┃
┡━━━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 1  │    5.71 ms │                   5.67 ms │     no change │
│ QQuery 2  │   81.34 ms │                  80.68 ms │     no change │
│ QQuery 3  │   29.25 ms │                  29.47 ms │     no change │
│ QQuery 4  │  479.69 ms │                 459.46 ms │     no change │
│ QQuery 5  │   52.30 ms │                  51.33 ms │     no change │
│ QQuery 6  │   36.82 ms │                  36.00 ms │     no change │
│ QQuery 7  │   75.52 ms │                  74.53 ms │     no change │
│ QQuery 8  │   36.91 ms │                  36.45 ms │     no change │
│ QQuery 9  │   53.28 ms │                  51.40 ms │     no change │
│ QQuery 10 │   63.66 ms │                  61.69 ms │     no change │
│ QQuery 11 │  305.10 ms │                 292.33 ms │     no change │
│ QQuery 12 │   29.27 ms │                  30.20 ms │     no change │
│ QQuery 13 │  119.30 ms │                 116.98 ms │     no change │
│ QQuery 14 │  398.13 ms │                 390.73 ms │     no change │
│ QQuery 15 │   58.90 ms │                  58.35 ms │     no change │
│ QQuery 16 │    7.00 ms │                   6.80 ms │     no change │
│ QQuery 17 │   80.69 ms │                  78.45 ms │     no change │
│ QQuery 18 │  108.13 ms │                 105.90 ms │     no change │
│ QQuery 19 │   42.25 ms │                  42.17 ms │     no change │
│ QQuery 20 │   37.23 ms │                  35.75 ms │     no change │
│ QQuery 21 │   17.87 ms │                  17.24 ms │     no change │
│ QQuery 22 │   67.70 ms │                  65.51 ms │     no change │
│ QQuery 23 │  321.22 ms │                 313.21 ms │     no change │
│ QQuery 24 │  203.30 ms │                 198.98 ms │     no change │
│ QQuery 25 │  111.57 ms │                 106.53 ms │     no change │
│ QQuery 26 │   50.06 ms │                  48.52 ms │     no change │
│ QQuery 27 │    6.52 ms │                   6.30 ms │     no change │
│ QQuery 28 │   61.20 ms │                  55.92 ms │ +1.09x faster │
│ QQuery 29 │   97.73 ms │                  93.19 ms │     no change │
│ QQuery 30 │   33.65 ms │                  32.78 ms │     no change │
│ QQuery 31 │  111.29 ms │                 110.04 ms │     no change │
│ QQuery 32 │   20.71 ms │                  20.49 ms │     no change │
│ QQuery 33 │   38.43 ms │                  37.49 ms │     no change │
│ QQuery 34 │   10.78 ms │                  10.20 ms │ +1.06x faster │
│ QQuery 35 │   77.48 ms │                  71.86 ms │ +1.08x faster │
│ QQuery 36 │    6.31 ms │                   6.16 ms │     no change │
│ QQuery 37 │    7.30 ms │                   7.25 ms │     no change │
│ QQuery 38 │   64.34 ms │                  64.42 ms │     no change │
│ QQuery 39 │   75.88 ms │                  75.31 ms │     no change │
│ QQuery 40 │   25.49 ms │                  24.00 ms │ +1.06x faster │
│ QQuery 41 │   12.00 ms │                  11.66 ms │     no change │
│ QQuery 42 │   24.74 ms │                  23.87 ms │     no change │
│ QQuery 43 │    5.38 ms │                   4.97 ms │ +1.08x faster │
│ QQuery 44 │    9.35 ms │                   9.02 ms │     no change │
│ QQuery 45 │   43.13 ms │                  38.95 ms │ +1.11x faster │
│ QQuery 46 │   12.57 ms │                  12.01 ms │     no change │
│ QQuery 47 │  240.64 ms │                 238.38 ms │     no change │
│ QQuery 48 │   96.60 ms │                  95.50 ms │     no change │
│ QQuery 49 │   72.63 ms │                  70.99 ms │     no change │
│ QQuery 50 │   59.79 ms │                  58.49 ms │     no change │
│ QQuery 51 │   95.28 ms │                  92.50 ms │     no change │
│ QQuery 52 │   25.13 ms │                  24.62 ms │     no change │
│ QQuery 53 │   30.26 ms │                  29.43 ms │     no change │
│ QQuery 54 │   55.71 ms │                  54.67 ms │     no change │
│ QQuery 55 │   24.74 ms │                  23.83 ms │     no change │
│ QQuery 56 │   40.06 ms │                  38.96 ms │     no change │
│ QQuery 57 │  171.13 ms │                 168.87 ms │     no change │
│ QQuery 58 │  109.31 ms │                 108.13 ms │     no change │
│ QQuery 59 │  117.34 ms │                 114.44 ms │     no change │
│ QQuery 60 │   39.64 ms │                  39.14 ms │     no change │
│ QQuery 61 │   12.21 ms │                  12.18 ms │     no change │
│ QQuery 62 │   44.69 ms │                  44.77 ms │     no change │
│ QQuery 63 │   30.03 ms │                  30.05 ms │     no change │
│ QQuery 64 │  364.58 ms │                 362.40 ms │     no change │
│ QQuery 65 │  134.61 ms │                 131.05 ms │     no change │
│ QQuery 66 │   79.74 ms │                  78.85 ms │     no change │
│ QQuery 67 │  260.69 ms │                 261.57 ms │     no change │
│ QQuery 68 │   12.21 ms │                  12.27 ms │     no change │
│ QQuery 69 │   57.26 ms │                  56.98 ms │     no change │
│ QQuery 70 │  103.87 ms │                 104.02 ms │     no change │
│ QQuery 71 │   35.79 ms │                  35.73 ms │     no change │
│ QQuery 72 │ 1810.06 ms │                1636.53 ms │ +1.11x faster │
│ QQuery 73 │   10.49 ms │                  10.32 ms │     no change │
│ QQuery 74 │  167.35 ms │                 172.38 ms │     no change │
│ QQuery 75 │  141.38 ms │                 143.59 ms │     no change │
│ QQuery 76 │   35.43 ms │                  35.14 ms │     no change │
│ QQuery 77 │   61.90 ms │                  61.64 ms │     no change │
│ QQuery 78 │  168.59 ms │                 164.71 ms │     no change │
│ QQuery 79 │   67.88 ms │                  67.65 ms │     no change │
│ QQuery 80 │   95.93 ms │                  96.10 ms │     no change │
│ QQuery 81 │   26.34 ms │                  26.78 ms │     no change │
│ QQuery 82 │   17.05 ms │                  17.38 ms │     no change │
│ QQuery 83 │   33.77 ms │                  34.29 ms │     no change │
│ QQuery 84 │   30.00 ms │                  30.01 ms │     no change │
│ QQuery 85 │  104.13 ms │                 103.25 ms │     no change │
│ QQuery 86 │   26.21 ms │                  26.38 ms │     no change │
│ QQuery 87 │   65.04 ms │                  63.91 ms │     no change │
│ QQuery 88 │   61.58 ms │                  61.78 ms │     no change │
│ QQuery 89 │   35.17 ms │                  35.17 ms │     no change │
│ QQuery 90 │   16.94 ms │                  17.11 ms │     no change │
│ QQuery 91 │   44.87 ms │                  45.38 ms │     no change │
│ QQuery 92 │   29.97 ms │                  29.89 ms │     no change │
│ QQuery 93 │   49.20 ms │                  48.09 ms │     no change │
│ QQuery 94 │   38.54 ms │                  39.17 ms │     no change │
│ QQuery 95 │   80.13 ms │                  80.75 ms │     no change │
│ QQuery 96 │   24.19 ms │                  24.31 ms │     no change │
│ QQuery 97 │   52.44 ms │                  51.30 ms │     no change │
│ QQuery 98 │   44.17 ms │                  43.43 ms │     no change │
│ QQuery 99 │   66.07 ms │                  66.03 ms │     no change │
└───────────┴────────────┴───────────────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃ Benchmark Summary                        ┃           ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━┩
│ Total Time (HEAD)                        │ 9335.21ms │
│ Total Time (perf-mimalloc-purge-delay)   │ 9030.46ms │
│ Average Time (HEAD)                      │   94.30ms │
│ Average Time (perf-mimalloc-purge-delay) │   91.22ms │
│ Queries Faster                           │         7 │
│ Queries Slower                           │         0 │
│ Queries with No Change                   │        92 │
│ Queries with Failure                     │         0 │
└──────────────────────────────────────────┴───────────┘

Distribution per query (min / mean ±stddev / max):

Comparing HEAD and perf-mimalloc-purge-delay
--------------------
Benchmark tpcds_sf1.json
--------------------
┏━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query     ┃                                  HEAD ┃             perf-mimalloc-purge-delay ┃        Change ┃
┡━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 1  │           5.71 / 6.32 ±0.97 / 8.24 ms │           5.67 / 6.21 ±0.97 / 8.14 ms │     no change │
│ QQuery 2  │        81.34 / 82.02 ±0.54 / 82.69 ms │        80.68 / 81.15 ±0.37 / 81.71 ms │     no change │
│ QQuery 3  │        29.25 / 29.51 ±0.25 / 29.82 ms │        29.47 / 29.61 ±0.14 / 29.83 ms │     no change │
│ QQuery 4  │     479.69 / 490.07 ±9.41 / 505.70 ms │    459.46 / 474.35 ±15.31 / 502.59 ms │     no change │
│ QQuery 5  │        52.30 / 53.12 ±0.70 / 54.26 ms │        51.33 / 51.92 ±0.77 / 53.42 ms │     no change │
│ QQuery 6  │        36.82 / 38.11 ±0.89 / 39.23 ms │        36.00 / 36.21 ±0.17 / 36.47 ms │     no change │
│ QQuery 7  │        75.52 / 76.42 ±0.66 / 77.46 ms │        74.53 / 74.91 ±0.35 / 75.55 ms │     no change │
│ QQuery 8  │        36.91 / 37.26 ±0.23 / 37.60 ms │        36.45 / 36.60 ±0.12 / 36.78 ms │     no change │
│ QQuery 9  │        53.28 / 54.86 ±1.54 / 57.73 ms │        51.40 / 54.33 ±2.14 / 57.72 ms │     no change │
│ QQuery 10 │        63.66 / 64.43 ±0.69 / 65.68 ms │        61.69 / 61.92 ±0.24 / 62.37 ms │     no change │
│ QQuery 11 │     305.10 / 315.20 ±5.30 / 319.32 ms │     292.33 / 298.50 ±4.03 / 302.71 ms │ +1.06x faster │
│ QQuery 12 │        29.27 / 29.95 ±0.41 / 30.45 ms │        30.20 / 30.71 ±0.42 / 31.43 ms │     no change │
│ QQuery 13 │     119.30 / 120.41 ±0.94 / 122.08 ms │     116.98 / 119.11 ±1.22 / 120.27 ms │     no change │
│ QQuery 14 │     398.13 / 403.21 ±5.09 / 410.62 ms │     390.73 / 393.50 ±1.78 / 395.61 ms │     no change │
│ QQuery 15 │        58.90 / 59.71 ±0.55 / 60.61 ms │        58.35 / 61.64 ±1.67 / 62.91 ms │     no change │
│ QQuery 16 │           7.00 / 7.15 ±0.16 / 7.36 ms │           6.80 / 6.91 ±0.10 / 7.07 ms │     no change │
│ QQuery 17 │        80.69 / 81.44 ±1.04 / 83.48 ms │        78.45 / 79.37 ±1.04 / 81.28 ms │     no change │
│ QQuery 18 │     108.13 / 109.42 ±1.26 / 111.68 ms │     105.90 / 106.70 ±0.50 / 107.37 ms │     no change │
│ QQuery 19 │        42.25 / 42.69 ±0.37 / 43.27 ms │        42.17 / 42.33 ±0.13 / 42.47 ms │     no change │
│ QQuery 20 │        37.23 / 37.66 ±0.32 / 38.09 ms │        35.75 / 36.12 ±0.23 / 36.44 ms │     no change │
│ QQuery 21 │        17.87 / 18.83 ±1.55 / 21.92 ms │        17.24 / 17.55 ±0.21 / 17.83 ms │ +1.07x faster │
│ QQuery 22 │        67.70 / 69.37 ±1.68 / 72.43 ms │        65.51 / 66.51 ±0.93 / 67.94 ms │     no change │
│ QQuery 23 │     321.22 / 326.52 ±5.17 / 334.80 ms │     313.21 / 320.16 ±5.37 / 327.12 ms │     no change │
│ QQuery 24 │     203.30 / 207.79 ±3.41 / 212.58 ms │     198.98 / 203.50 ±3.04 / 207.20 ms │     no change │
│ QQuery 25 │     111.57 / 112.57 ±0.98 / 113.84 ms │     106.53 / 107.18 ±0.61 / 108.22 ms │     no change │
│ QQuery 26 │        50.06 / 50.42 ±0.28 / 50.72 ms │        48.52 / 48.72 ±0.15 / 48.97 ms │     no change │
│ QQuery 27 │           6.52 / 6.65 ±0.13 / 6.89 ms │           6.30 / 6.49 ±0.13 / 6.64 ms │     no change │
│ QQuery 28 │        61.20 / 62.01 ±0.59 / 62.68 ms │        55.92 / 58.51 ±2.09 / 61.31 ms │ +1.06x faster │
│ QQuery 29 │       97.73 / 99.03 ±1.47 / 101.70 ms │        93.19 / 93.52 ±0.23 / 93.84 ms │ +1.06x faster │
│ QQuery 30 │        33.65 / 34.18 ±0.38 / 34.79 ms │        32.78 / 33.30 ±0.29 / 33.63 ms │     no change │
│ QQuery 31 │     111.29 / 114.85 ±4.13 / 122.86 ms │     110.04 / 111.77 ±1.00 / 113.05 ms │     no change │
│ QQuery 32 │        20.71 / 21.10 ±0.26 / 21.45 ms │        20.49 / 21.11 ±0.39 / 21.67 ms │     no change │
│ QQuery 33 │        38.43 / 38.54 ±0.12 / 38.76 ms │        37.49 / 37.77 ±0.28 / 38.25 ms │     no change │
│ QQuery 34 │        10.78 / 10.92 ±0.09 / 11.07 ms │        10.20 / 10.44 ±0.22 / 10.70 ms │     no change │
│ QQuery 35 │        77.48 / 79.13 ±2.16 / 83.29 ms │        71.86 / 73.46 ±1.32 / 75.51 ms │ +1.08x faster │
│ QQuery 36 │           6.31 / 6.49 ±0.14 / 6.71 ms │           6.16 / 6.33 ±0.11 / 6.50 ms │     no change │
│ QQuery 37 │           7.30 / 7.39 ±0.08 / 7.52 ms │           7.25 / 7.33 ±0.04 / 7.38 ms │     no change │
│ QQuery 38 │        64.34 / 65.13 ±0.50 / 65.78 ms │        64.42 / 64.65 ±0.22 / 65.01 ms │     no change │
│ QQuery 39 │        75.88 / 76.82 ±0.53 / 77.36 ms │        75.31 / 76.31 ±0.88 / 77.41 ms │     no change │
│ QQuery 40 │        25.49 / 26.76 ±1.84 / 30.41 ms │        24.00 / 24.30 ±0.19 / 24.60 ms │ +1.10x faster │
│ QQuery 41 │        12.00 / 12.15 ±0.09 / 12.25 ms │        11.66 / 11.74 ±0.06 / 11.84 ms │     no change │
│ QQuery 42 │        24.74 / 25.43 ±0.40 / 25.94 ms │        23.87 / 24.03 ±0.15 / 24.27 ms │ +1.06x faster │
│ QQuery 43 │           5.38 / 5.48 ±0.08 / 5.60 ms │           4.97 / 5.04 ±0.07 / 5.15 ms │ +1.09x faster │
│ QQuery 44 │          9.35 / 9.86 ±0.85 / 11.55 ms │           9.02 / 9.05 ±0.02 / 9.09 ms │ +1.09x faster │
│ QQuery 45 │        43.13 / 43.93 ±0.64 / 44.78 ms │        38.95 / 40.45 ±1.01 / 42.06 ms │ +1.09x faster │
│ QQuery 46 │        12.57 / 12.87 ±0.23 / 13.13 ms │        12.01 / 12.20 ±0.12 / 12.36 ms │ +1.06x faster │
│ QQuery 47 │     240.64 / 248.14 ±6.09 / 255.86 ms │     238.38 / 243.33 ±4.10 / 249.20 ms │     no change │
│ QQuery 48 │       96.60 / 99.38 ±2.26 / 103.48 ms │        95.50 / 95.91 ±0.33 / 96.21 ms │     no change │
│ QQuery 49 │        72.63 / 73.65 ±0.98 / 75.52 ms │        70.99 / 71.74 ±0.50 / 72.44 ms │     no change │
│ QQuery 50 │        59.79 / 62.10 ±3.57 / 69.20 ms │        58.49 / 58.65 ±0.11 / 58.83 ms │ +1.06x faster │
│ QQuery 51 │       95.28 / 97.63 ±2.14 / 100.96 ms │        92.50 / 93.77 ±1.05 / 95.31 ms │     no change │
│ QQuery 52 │        25.13 / 25.41 ±0.22 / 25.65 ms │        24.62 / 24.92 ±0.29 / 25.47 ms │     no change │
│ QQuery 53 │        30.26 / 30.39 ±0.10 / 30.57 ms │        29.43 / 29.58 ±0.15 / 29.86 ms │     no change │
│ QQuery 54 │        55.71 / 58.15 ±3.38 / 64.70 ms │        54.67 / 54.84 ±0.13 / 55.03 ms │ +1.06x faster │
│ QQuery 55 │        24.74 / 25.03 ±0.23 / 25.46 ms │        23.83 / 24.06 ±0.15 / 24.19 ms │     no change │
│ QQuery 56 │        40.06 / 40.65 ±0.70 / 42.01 ms │        38.96 / 39.23 ±0.22 / 39.61 ms │     no change │
│ QQuery 57 │     171.13 / 173.83 ±3.68 / 181.03 ms │     168.87 / 169.80 ±0.74 / 170.78 ms │     no change │
│ QQuery 58 │     109.31 / 111.15 ±1.78 / 114.34 ms │     108.13 / 108.90 ±0.61 / 109.84 ms │     no change │
│ QQuery 59 │     117.34 / 117.93 ±0.77 / 119.39 ms │     114.44 / 114.96 ±0.29 / 115.28 ms │     no change │
│ QQuery 60 │        39.64 / 40.29 ±0.66 / 41.51 ms │        39.14 / 39.33 ±0.20 / 39.71 ms │     no change │
│ QQuery 61 │        12.21 / 12.32 ±0.06 / 12.39 ms │        12.18 / 12.42 ±0.15 / 12.63 ms │     no change │
│ QQuery 62 │        44.69 / 45.06 ±0.28 / 45.46 ms │        44.77 / 45.15 ±0.28 / 45.58 ms │     no change │
│ QQuery 63 │        30.03 / 31.75 ±2.71 / 37.12 ms │        30.05 / 30.16 ±0.14 / 30.40 ms │ +1.05x faster │
│ QQuery 64 │     364.58 / 374.61 ±6.25 / 384.09 ms │     362.40 / 366.01 ±2.73 / 369.36 ms │     no change │
│ QQuery 65 │     134.61 / 137.18 ±1.57 / 139.33 ms │     131.05 / 132.55 ±1.75 / 135.86 ms │     no change │
│ QQuery 66 │        79.74 / 81.64 ±3.25 / 88.11 ms │        78.85 / 79.66 ±0.56 / 80.47 ms │     no change │
│ QQuery 67 │     260.69 / 268.20 ±5.02 / 275.91 ms │     261.57 / 263.99 ±2.29 / 268.16 ms │     no change │
│ QQuery 68 │        12.21 / 12.37 ±0.12 / 12.53 ms │        12.27 / 12.46 ±0.18 / 12.72 ms │     no change │
│ QQuery 69 │        57.26 / 57.83 ±0.51 / 58.59 ms │        56.98 / 57.50 ±0.57 / 58.34 ms │     no change │
│ QQuery 70 │     103.87 / 107.50 ±5.07 / 117.16 ms │     104.02 / 104.62 ±0.57 / 105.39 ms │     no change │
│ QQuery 71 │        35.79 / 36.49 ±0.66 / 37.31 ms │        35.73 / 35.99 ±0.25 / 36.35 ms │     no change │
│ QQuery 72 │ 1810.06 / 1864.69 ±43.04 / 1935.76 ms │ 1636.53 / 1678.01 ±29.64 / 1712.73 ms │ +1.11x faster │
│ QQuery 73 │        10.49 / 10.77 ±0.30 / 11.31 ms │        10.32 / 10.51 ±0.19 / 10.83 ms │     no change │
│ QQuery 74 │     167.35 / 174.05 ±4.48 / 179.26 ms │     172.38 / 176.84 ±2.90 / 181.51 ms │     no change │
│ QQuery 75 │     141.38 / 145.09 ±2.85 / 149.57 ms │     143.59 / 143.91 ±0.19 / 144.15 ms │     no change │
│ QQuery 76 │        35.43 / 35.80 ±0.34 / 36.39 ms │        35.14 / 35.49 ±0.40 / 36.11 ms │     no change │
│ QQuery 77 │        61.90 / 62.41 ±0.54 / 63.40 ms │        61.64 / 62.44 ±0.42 / 62.84 ms │     no change │
│ QQuery 78 │     168.59 / 171.48 ±2.04 / 174.14 ms │     164.71 / 165.92 ±0.89 / 167.12 ms │     no change │
│ QQuery 79 │        67.88 / 68.18 ±0.24 / 68.45 ms │        67.65 / 68.06 ±0.35 / 68.49 ms │     no change │
│ QQuery 80 │        95.93 / 97.57 ±1.51 / 99.88 ms │        96.10 / 96.73 ±0.72 / 98.09 ms │     no change │
│ QQuery 81 │        26.34 / 26.68 ±0.21 / 26.96 ms │        26.78 / 27.02 ±0.13 / 27.14 ms │     no change │
│ QQuery 82 │        17.05 / 17.52 ±0.46 / 18.39 ms │        17.38 / 17.63 ±0.14 / 17.74 ms │     no change │
│ QQuery 83 │        33.77 / 34.10 ±0.32 / 34.61 ms │        34.29 / 34.45 ±0.16 / 34.64 ms │     no change │
│ QQuery 84 │        30.00 / 31.79 ±2.44 / 36.56 ms │        30.01 / 30.16 ±0.12 / 30.34 ms │ +1.05x faster │
│ QQuery 85 │     104.13 / 105.01 ±0.69 / 106.01 ms │     103.25 / 103.94 ±0.55 / 104.89 ms │     no change │
│ QQuery 86 │        26.21 / 26.43 ±0.19 / 26.71 ms │        26.38 / 26.76 ±0.38 / 27.50 ms │     no change │
│ QQuery 87 │        65.04 / 66.94 ±2.54 / 71.96 ms │        63.91 / 64.32 ±0.40 / 64.95 ms │     no change │
│ QQuery 88 │        61.58 / 62.02 ±0.45 / 62.57 ms │        61.78 / 62.43 ±0.52 / 63.12 ms │     no change │
│ QQuery 89 │        35.17 / 35.56 ±0.41 / 36.10 ms │        35.17 / 35.39 ±0.21 / 35.75 ms │     no change │
│ QQuery 90 │        16.94 / 17.09 ±0.14 / 17.35 ms │        17.11 / 17.35 ±0.17 / 17.58 ms │     no change │
│ QQuery 91 │        44.87 / 45.08 ±0.14 / 45.30 ms │        45.38 / 45.82 ±0.31 / 46.16 ms │     no change │
│ QQuery 92 │        29.97 / 30.25 ±0.27 / 30.59 ms │        29.89 / 30.11 ±0.16 / 30.30 ms │     no change │
│ QQuery 93 │        49.20 / 51.88 ±2.84 / 57.37 ms │        48.09 / 48.75 ±0.38 / 49.26 ms │ +1.06x faster │
│ QQuery 94 │        38.54 / 39.00 ±0.82 / 40.64 ms │        39.17 / 39.53 ±0.27 / 39.88 ms │     no change │
│ QQuery 95 │        80.13 / 81.23 ±0.66 / 81.92 ms │        80.75 / 81.20 ±0.35 / 81.70 ms │     no change │
│ QQuery 96 │        24.19 / 24.40 ±0.14 / 24.59 ms │        24.31 / 24.51 ±0.26 / 25.01 ms │     no change │
│ QQuery 97 │        52.44 / 54.40 ±3.56 / 61.53 ms │        51.30 / 51.66 ±0.27 / 52.02 ms │ +1.05x faster │
│ QQuery 98 │        44.17 / 44.71 ±0.64 / 45.93 ms │        43.43 / 43.77 ±0.43 / 44.59 ms │     no change │
│ QQuery 99 │        66.07 / 66.72 ±0.39 / 67.15 ms │        66.03 / 66.35 ±0.17 / 66.51 ms │     no change │
└───────────┴───────────────────────────────────────┴───────────────────────────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃ Benchmark Summary                        ┃           ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━┩
│ Total Time (HEAD)                        │ 9542.67ms │
│ Total Time (perf-mimalloc-purge-delay)   │ 9172.12ms │
│ Average Time (HEAD)                      │   96.39ms │
│ Average Time (perf-mimalloc-purge-delay) │   92.65ms │
│ Queries Faster                           │        18 │
│ Queries Slower                           │         0 │
│ Queries with No Change                   │        81 │
│ Queries with Failure                     │         0 │
└──────────────────────────────────────────┴───────────┘

Resource Usage

tpcds — base (merge-base)

Metric	Value
Wall time	50.0s
Peak memory	2.3 GiB
Avg memory	1.6 GiB
CPU user	204.2s
CPU sys	5.8s
Peak spill	0 B

tpcds — branch

Metric	Value
Wall time	50.0s
Peak memory	2.2 GiB
Avg memory	1.7 GiB
CPU user	199.9s
CPU sys	4.6s
Peak spill	0 B

---

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🤖 Benchmark completed (GKE) | trigger

Instance: c4a-highmem-16 (12 vCPU / 65 GiB)

Comparing perf-mimalloc-purge-delay (d46ca4e) to b9c8b3d (merge-base) diff

Run configuration

run benchmark clickbench_partitioned

CPU Details (lscpu)

Architecture:                            aarch64
CPU op-mode(s):                          64-bit
Byte Order:                              Little Endian
CPU(s):                                  16
On-line CPU(s) list:                     0-15
Vendor ID:                               ARM
Model name:                              Neoverse-V2
Model:                                   1
Thread(s) per core:                      1
Core(s) per cluster:                     16
Socket(s):                               -
Cluster(s):                              1
Stepping:                                r0p1
BogoMIPS:                                2000.00
Flags:                                   fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh rng bti
L1d cache:                               1 MiB (16 instances)
L1i cache:                               1 MiB (16 instances)
L2 cache:                                32 MiB (16 instances)
L3 cache:                                80 MiB (1 instance)
NUMA node(s):                            1
NUMA node0 CPU(s):                       0-15
Vulnerability Gather data sampling:      Not affected
Vulnerability Indirect target selection: Not affected
Vulnerability Itlb multihit:             Not affected
Vulnerability L1tf:                      Not affected
Vulnerability Mds:                       Not affected
Vulnerability Meltdown:                  Not affected
Vulnerability Mmio stale data:           Not affected
Vulnerability Reg file data sampling:    Not affected
Vulnerability Retbleed:                  Not affected
Vulnerability Spec rstack overflow:      Not affected
Vulnerability Spec store bypass:         Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1:                Mitigation; __user pointer sanitization
Vulnerability Spectre v2:                Mitigation; CSV2, BHB
Vulnerability Srbds:                     Not affected
Vulnerability Tsa:                       Not affected
Vulnerability Tsx async abort:           Not affected
Vulnerability Vmscape:                   Not affected

Details

Comparing HEAD and perf-mimalloc-purge-delay
--------------------
Benchmark clickbench_partitioned.json
--------------------
┏━━━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query     ┃       HEAD ┃ perf-mimalloc-purge-delay ┃        Change ┃
┡━━━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 0  │    1.24 ms │                   1.24 ms │     no change │
│ QQuery 1  │   11.57 ms │                  11.75 ms │     no change │
│ QQuery 2  │   36.80 ms │                  36.62 ms │     no change │
│ QQuery 3  │   31.47 ms │                  31.77 ms │     no change │
│ QQuery 4  │  238.55 ms │                 237.96 ms │     no change │
│ QQuery 5  │  278.46 ms │                 270.41 ms │     no change │
│ QQuery 6  │    1.28 ms │                   1.29 ms │     no change │
│ QQuery 7  │   13.06 ms │                  12.99 ms │     no change │
│ QQuery 8  │  335.07 ms │                 324.64 ms │     no change │
│ QQuery 9  │  475.61 ms │                 457.37 ms │     no change │
│ QQuery 10 │   65.87 ms │                  62.17 ms │ +1.06x faster │
│ QQuery 11 │   75.44 ms │                  73.18 ms │     no change │
│ QQuery 12 │  267.72 ms │                 255.29 ms │     no change │
│ QQuery 13 │  358.56 ms │                 349.82 ms │     no change │
│ QQuery 14 │  282.85 ms │                 268.15 ms │ +1.05x faster │
│ QQuery 15 │  285.20 ms │                 266.49 ms │ +1.07x faster │
│ QQuery 16 │  616.66 ms │                 594.87 ms │     no change │
│ QQuery 17 │  630.62 ms │                 588.09 ms │ +1.07x faster │
│ QQuery 18 │ 1266.72 ms │                1185.84 ms │ +1.07x faster │
│ QQuery 19 │   27.75 ms │                  27.19 ms │     no change │
│ QQuery 20 │  522.62 ms │                 504.22 ms │     no change │
│ QQuery 21 │  518.45 ms │                 491.99 ms │ +1.05x faster │
│ QQuery 22 │ 1013.37 ms │                 951.61 ms │ +1.06x faster │
│ QQuery 23 │ 3213.56 ms │                2869.05 ms │ +1.12x faster │
│ QQuery 24 │   40.58 ms │                  39.90 ms │     no change │
│ QQuery 25 │  105.23 ms │                 102.81 ms │     no change │
│ QQuery 26 │   41.23 ms │                  40.26 ms │     no change │
│ QQuery 27 │  517.40 ms │                 493.50 ms │     no change │
│ QQuery 28 │ 2882.35 ms │                2764.41 ms │     no change │
│ QQuery 29 │   42.03 ms │                  41.21 ms │     no change │
│ QQuery 30 │  310.69 ms │                 284.59 ms │ +1.09x faster │
│ QQuery 31 │  285.92 ms │                 258.01 ms │ +1.11x faster │
│ QQuery 32 │ 1159.91 ms │                 835.05 ms │ +1.39x faster │
│ QQuery 33 │ 1541.56 ms │                1294.47 ms │ +1.19x faster │
│ QQuery 34 │ 1599.61 ms │                1291.02 ms │ +1.24x faster │
│ QQuery 35 │  310.59 ms │                 268.69 ms │ +1.16x faster │
│ QQuery 36 │   69.28 ms │                  62.83 ms │ +1.10x faster │
│ QQuery 37 │   35.63 ms │                  34.29 ms │     no change │
│ QQuery 38 │   42.37 ms │                  39.33 ms │ +1.08x faster │
│ QQuery 39 │  140.62 ms │                 125.90 ms │ +1.12x faster │
│ QQuery 40 │   14.69 ms │                  13.98 ms │     no change │
│ QQuery 41 │   14.02 ms │                  13.63 ms │     no change │
│ QQuery 42 │   13.65 ms │                  12.99 ms │     no change │
└───────────┴────────────┴───────────────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Benchmark Summary                        ┃            ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━┩
│ Total Time (HEAD)                        │ 19735.86ms │
│ Total Time (perf-mimalloc-purge-delay)   │ 17890.92ms │
│ Average Time (HEAD)                      │   458.97ms │
│ Average Time (perf-mimalloc-purge-delay) │   416.07ms │
│ Queries Faster                           │         17 │
│ Queries Slower                           │          0 │
│ Queries with No Change                   │         26 │
│ Queries with Failure                     │          0 │
└──────────────────────────────────────────┴────────────┘

Distribution per query (min / mean ±stddev / max):

Comparing HEAD and perf-mimalloc-purge-delay
--------------------
Benchmark clickbench_partitioned.json
--------------------
┏━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query     ┃                                   HEAD ┃             perf-mimalloc-purge-delay ┃        Change ┃
┡━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 0  │           1.24 / 4.06 ±5.52 / 15.10 ms │          1.24 / 4.07 ±5.51 / 15.08 ms │     no change │
│ QQuery 1  │         11.57 / 12.02 ±0.25 / 12.29 ms │        11.75 / 11.97 ±0.14 / 12.16 ms │     no change │
│ QQuery 2  │         36.80 / 37.12 ±0.22 / 37.39 ms │        36.62 / 36.97 ±0.21 / 37.29 ms │     no change │
│ QQuery 3  │         31.47 / 32.11 ±0.76 / 33.52 ms │        31.77 / 32.19 ±0.53 / 33.23 ms │     no change │
│ QQuery 4  │      238.55 / 242.61 ±2.81 / 245.25 ms │     237.96 / 240.27 ±1.88 / 243.72 ms │     no change │
│ QQuery 5  │      278.46 / 280.36 ±1.12 / 281.51 ms │     270.41 / 273.52 ±1.80 / 275.97 ms │     no change │
│ QQuery 6  │            1.28 / 1.44 ±0.24 / 1.91 ms │           1.29 / 1.44 ±0.22 / 1.88 ms │     no change │
│ QQuery 7  │         13.06 / 13.26 ±0.16 / 13.43 ms │        12.99 / 13.16 ±0.12 / 13.31 ms │     no change │
│ QQuery 8  │      335.07 / 340.12 ±4.05 / 346.28 ms │     324.64 / 329.83 ±2.80 / 332.62 ms │     no change │
│ QQuery 9  │      475.61 / 482.12 ±4.08 / 488.05 ms │     457.37 / 460.37 ±2.73 / 464.63 ms │     no change │
│ QQuery 10 │         65.87 / 66.31 ±0.38 / 66.91 ms │        62.17 / 63.00 ±0.58 / 63.86 ms │     no change │
│ QQuery 11 │         75.44 / 76.53 ±0.85 / 77.99 ms │        73.18 / 74.00 ±0.75 / 75.20 ms │     no change │
│ QQuery 12 │      267.72 / 271.99 ±5.49 / 282.07 ms │     255.29 / 256.53 ±1.20 / 258.36 ms │ +1.06x faster │
│ QQuery 13 │      358.56 / 371.00 ±9.32 / 384.47 ms │    349.82 / 363.60 ±12.00 / 381.58 ms │     no change │
│ QQuery 14 │      282.85 / 285.28 ±1.47 / 287.17 ms │     268.15 / 270.37 ±2.02 / 273.86 ms │ +1.06x faster │
│ QQuery 15 │      285.20 / 291.10 ±3.48 / 295.98 ms │     266.49 / 269.57 ±2.07 / 272.22 ms │ +1.08x faster │
│ QQuery 16 │      616.66 / 628.14 ±6.10 / 634.35 ms │     594.87 / 598.52 ±4.00 / 605.80 ms │     no change │
│ QQuery 17 │      630.62 / 640.58 ±7.09 / 648.63 ms │     588.09 / 592.30 ±2.12 / 593.80 ms │ +1.08x faster │
│ QQuery 18 │  1266.72 / 1297.30 ±29.15 / 1348.38 ms │  1185.84 / 1195.23 ±7.96 / 1205.81 ms │ +1.09x faster │
│ QQuery 19 │         27.75 / 31.68 ±7.67 / 47.03 ms │        27.19 / 27.32 ±0.18 / 27.68 ms │ +1.16x faster │
│ QQuery 20 │      522.62 / 528.03 ±7.99 / 543.94 ms │     504.22 / 507.16 ±2.11 / 509.89 ms │     no change │
│ QQuery 21 │     518.45 / 526.88 ±10.68 / 547.14 ms │     491.99 / 493.64 ±1.58 / 496.46 ms │ +1.07x faster │
│ QQuery 22 │   1013.37 / 1027.02 ±8.82 / 1039.38 ms │     951.61 / 952.45 ±0.70 / 953.62 ms │ +1.08x faster │
│ QQuery 23 │  3213.56 / 3258.08 ±44.74 / 3327.42 ms │ 2869.05 / 2885.72 ±21.68 / 2927.48 ms │ +1.13x faster │
│ QQuery 24 │     40.58 / 168.52 ±239.67 / 647.45 ms │        39.90 / 40.16 ±0.29 / 40.69 ms │ +4.20x faster │
│ QQuery 25 │      105.23 / 106.68 ±1.18 / 108.71 ms │     102.81 / 103.33 ±0.45 / 104.05 ms │     no change │
│ QQuery 26 │         41.23 / 41.81 ±0.47 / 42.53 ms │        40.26 / 40.42 ±0.15 / 40.65 ms │     no change │
│ QQuery 27 │     517.40 / 532.42 ±19.33 / 569.84 ms │     493.50 / 495.00 ±1.21 / 496.88 ms │ +1.08x faster │
│ QQuery 28 │  2882.35 / 2935.95 ±38.25 / 3001.50 ms │  2764.41 / 2769.39 ±6.44 / 2781.62 ms │ +1.06x faster │
│ QQuery 29 │       42.03 / 57.02 ±22.46 / 101.17 ms │        41.21 / 41.40 ±0.20 / 41.76 ms │ +1.38x faster │
│ QQuery 30 │     310.69 / 331.10 ±26.03 / 381.44 ms │     284.59 / 285.82 ±0.92 / 287.01 ms │ +1.16x faster │
│ QQuery 31 │     285.92 / 306.24 ±25.74 / 352.07 ms │     258.01 / 260.46 ±2.89 / 266.14 ms │ +1.18x faster │
│ QQuery 32 │ 1159.91 / 1379.32 ±210.17 / 1778.87 ms │     835.05 / 838.15 ±3.55 / 844.64 ms │ +1.65x faster │
│ QQuery 33 │  1541.56 / 1581.65 ±27.55 / 1610.51 ms │  1294.47 / 1302.26 ±7.74 / 1316.50 ms │ +1.21x faster │
│ QQuery 34 │  1599.61 / 1643.99 ±36.49 / 1709.38 ms │  1291.02 / 1304.11 ±8.53 / 1314.89 ms │ +1.26x faster │
│ QQuery 35 │     310.59 / 350.39 ±46.24 / 428.41 ms │     268.69 / 271.92 ±1.87 / 273.50 ms │ +1.29x faster │
│ QQuery 36 │        69.28 / 77.69 ±11.08 / 99.47 ms │        62.83 / 62.96 ±0.10 / 63.06 ms │ +1.23x faster │
│ QQuery 37 │         35.63 / 41.65 ±4.22 / 45.76 ms │        34.29 / 34.59 ±0.20 / 34.78 ms │ +1.20x faster │
│ QQuery 38 │         42.37 / 48.20 ±5.86 / 56.47 ms │        39.33 / 39.67 ±0.17 / 39.81 ms │ +1.22x faster │
│ QQuery 39 │      140.62 / 153.34 ±7.39 / 162.89 ms │     125.90 / 126.61 ±0.48 / 127.12 ms │ +1.21x faster │
│ QQuery 40 │         14.69 / 15.12 ±0.40 / 15.76 ms │        13.98 / 14.24 ±0.14 / 14.37 ms │ +1.06x faster │
│ QQuery 41 │         14.02 / 15.49 ±2.58 / 20.63 ms │        13.63 / 13.89 ±0.19 / 14.20 ms │ +1.12x faster │
│ QQuery 42 │         13.65 / 15.20 ±2.96 / 21.12 ms │        12.99 / 13.29 ±0.17 / 13.50 ms │ +1.14x faster │
└───────────┴────────────────────────────────────────┴───────────────────────────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Benchmark Summary                        ┃            ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━┩
│ Total Time (HEAD)                        │ 20546.94ms │
│ Total Time (perf-mimalloc-purge-delay)   │ 18010.88ms │
│ Average Time (HEAD)                      │   477.84ms │
│ Average Time (perf-mimalloc-purge-delay) │   418.86ms │
│ Queries Faster                           │         26 │
│ Queries Slower                           │          0 │
│ Queries with No Change                   │         17 │
│ Queries with Failure                     │          0 │
└──────────────────────────────────────────┴────────────┘

Resource Usage

clickbench_partitioned — base (merge-base)

Metric	Value
Wall time	105.0s
Peak memory	16.8 GiB
Avg memory	5.8 GiB
CPU user	1001.2s
CPU sys	98.9s
Peak spill	0 B

clickbench_partitioned — branch

Metric	Value
Wall time	95.0s
Peak memory	19.2 GiB
Avg memory	14.1 GiB
CPU user	967.2s
CPU sys	29.5s
Peak spill	0 B

---

File an issue against this benchmark runner

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.80%. Comparing base (b9c8b3d) to head (d46ca4e).
⚠️ Report is 159 commits behind head on main.

Files with missing lines	Patch %	Lines
benchmarks/src/bin/dfbench.rs	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #26217      +/-   ##
==========================================
+ Coverage   82.57%   82.80%   +0.23%     
==========================================
  Files        1142     1149       +7     
  Lines      441215   452241   +11026     
  Branches   441215   452241   +11026     
==========================================
+ Hits       364332   374482   +10150     
- Misses      54841    54960     +119     
- Partials    22042    22799     +757     

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