[GHC] #14257: Heap profiling with ghc and hp2ps and strict function application ($!) gives samples out of sequence (regression)
GHC
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Wed Nov 15 20:05:28 UTC 2017
#14257: Heap profiling with ghc and hp2ps and strict function application ($!)
gives samples out of sequence (regression)
-------------------------------------+-------------------------------------
Reporter: carlostome | Owner: bgamari
Type: bug | Status: patch
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): Phab:D4184
Wiki Page: |
-------------------------------------+-------------------------------------
Comment (by Ben Gamari <ben@…>):
In [changeset:"d9f0c24dd01b2f2a9a5ccc2fc45e93064d4ba0c1/ghc"
d9f0c24d/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="d9f0c24dd01b2f2a9a5ccc2fc45e93064d4ba0c1"
rts: Fix gc timing
We were accumulating the gc times of the previous gc.
`stats.gc.{cpu,elappsed}_ns` were being accumulated into
`stats.gc_{cpu,elapsed}_ns` before they were set.
There is also a change in that heap profiling will no longer cause gc
events to
be emitted.
Reviewers: bgamari, erikd, simonmar
Reviewed By: bgamari
Subscribers: rwbarton, thomie
GHC Trac Issues: #14257, #14445
Differential Revision: https://phabricator.haskell.org/D4184
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14257#comment:13>
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