Add support for measuring compile time per thread #42018
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In situations where we run long-running server that spends non-trivial amount of time in the compilation we are happy to pay the cost to have this instrumentation always on. This PR allows us to enable permanent tracking (effectively switching the before/after switches moot) by calling `jl_track_compile_time_permanently()` method, and then providing `jl_cumulative_compile_time_ns_total()` to return the total time. Co-Authored-By: janrous-rai <[email protected]>
… track_compile_time_permanently()
Restores the ability to also track per-thread compilation time in addition to the global time we created in #41733. Co-Authored-By: janrous-rai <[email protected]>
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CC: @janrous-rai, @Sacha0 |
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Sorry we left this PR in draft for so long... does anyone actually care about this? Do we, @janrous-rai, @kpamnany? @vchuravy: would this be better done via Probes? Does this tie-in better to the overall tracing efforts, like #36870? |
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I believe the other pr that changed the compilation accounting may replace
this. I'll need to take another look at it.
…On Sun, Jan 2, 2022, 09:21 Nathan Daly ***@***.***> wrote:
Sorry we left this PR in draft for so long... does anyone actually care
about this? Do we, @janrous-rai <https://github.com/janrous-rai>,
@kpamnany <https://github.com/kpamnany>?
@vchuravy <https://github.com/vchuravy>: would this be better done via
Probes? Does this tie-in better to the overall tracing efforts, like
#36870 <#36870>?
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This PR is branched out as a follow-up to #41762.
It restores the ability to also track per-thread compilation time in addition to the global time we created in #41733.