Pipeline latency #33
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Pipeline latency #33
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credp
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Jul 14, 2017
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I think it looks good - could be hugely useful.
| pthread_cond_wait(&(rdata->res.barrier.c_obj), &(rdata->res.barrier.m_obj)); | ||
| rdata->res.barrier.waiting += 1; | ||
| { | ||
| struct timespec t_delta; |
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This seems a bit nitpicky, so feel free to ignore it, but you could put t_delta inside the if condition to avoid the additional {} indent.
added 2 commits
July 20, 2017 15:17
End-to-end latency of a pipeline of tasks is a useful metric to evaluate synthetic mobile-like workloads (e.g., audio/video decoding pipeline). Add such feature by piggybacking barrier_like events. Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Add information in the tutorial and an example about how bref event can be used to measure end-to-end latency of pipelines of tasks. Signed-off-by: Juri Lelli <juri.lelli@arm.com>
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Hey @jlelli did you get anywhere with this? |
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Hey, I didn't unfortunately. |
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Hi,
I've been thinking it would be helpful to have a metric to measure end-to-end latency of pipelines of tasks (to compare against energy consumption).
The idea is to propose rt-app as a tool for creating mobile like type of workloads during the Scheduler Workloads uconf at LPC (if accepted).
Still highly WIP, I'm sure it doesn't always work reliably, but get some early feedback would be much appreciated.