[GHC] #14257: Heap profiling with ghc and hp2ps and strict function application ($!) gives samples out of sequence (regression)
GHC
ghc-devs at haskell.org
Sun Nov 12 22:42:17 UTC 2017
#14257: Heap profiling with ghc and hp2ps and strict function application ($!)
gives samples out of sequence (regression)
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Reporter: carlostome | Owner: bgamari
Type: bug | Status: new
Priority: high | Milestone: 8.4.1
Component: Runtime System | Version: 8.2.1
Resolution: | Keywords: profiler
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: #14006, #11645 | Differential Rev(s):
Wiki Page: |
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Comment (by duog):
> when I noticed that we already have a separate set of fields for
accounting heap census time. Presumably this means that we were double-
counting time previously. Anyways, this suggests to me at least that your
approach should be fine.
I don't ''think'' we were double counting. `stat_endGC` is only accounting
for time, it doesn't call `getProcessTimes`.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14257#comment:10>
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