perf: fast path for zsh rprompt - 55ms to 5ms (8x faster)#2692
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AasheeshLikePanner wants to merge 8 commits intoantinomyhq:mainfrom
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perf: fast path for zsh rprompt - 55ms to 5ms (8x faster)#2692AasheeshLikePanner wants to merge 8 commits intoantinomyhq:mainfrom
AasheeshLikePanner wants to merge 8 commits intoantinomyhq:mainfrom
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tusharmath
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Mar 25, 2026
tusharmath
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Mar 25, 2026
Bypasses heavy initialization (ForgeInfra, ForgeRepo, ForgeServices) when _FORGE_CONVERSATION_ID is not set.
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- Check exact argument positions to avoid false positives - Check BEFORE Cli::parse() to avoid parsing overhead - Falls back to normal path when _FORGE_CONVERSATION_ID is set
tusharmath
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- Add direct SQLite query via rusqlite to fetch rprompt data
- Bypass full Forge infrastructure stack for ~7ms performance
- Uses json_extract to pull usage.{total_tokens,cost,model} from context
- Falls back to normal path if DB/table doesn't exist
- Fix edge case: single quote string in model extraction
Co-Authored-By: ForgeCode <noreply@forgecode.dev>
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Conflicts resolved: - Cargo.lock: kept both dirs and enable-ansi-support, rusqlite and ron/rust-ini - Cargo.toml: merged dependencies perf: second fast path for zsh rprompt with conversation ID Co-Authored-By: ForgeCode <noreply@forgecode.dev>
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Summary
This PR fixes the flaky zsh rprompt benchmark in #2574 by implementing an early-exit fast path for the
zsh rpromptcommand when no conversation ID is present.Changes
Added a fast path in
main.rsthat checks forzsh rpromptcommand BEFORE any heavy initialization:_FORGE_CONVERSATION_IDis NOT set → print static prompt and exit immediately_FORGE_CONVERSATION_IDIS set → continue with normal full initializationThis bypasses:
Results
Benchmark (CI)
avg: 5ms
p75: 6ms
threshold: 80ms
Status: PASS
Before Screenshot
After Screenshot