[GHC] #8611: nofib’s cacheprof’s allocations nondeterminisitic
GHC
ghc-devs at haskell.org
Wed Dec 11 12:01:10 UTC 2013
#8611: nofib’s cacheprof’s allocations nondeterminisitic
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Reporter: nomeata | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: NoFib benchmark suite | Version: 7.6.3
Keywords: | Operating System:
Architecture: Unknown/Multiple | Unknown/Multiple
Difficulty: Unknown | Type of failure: None/Unknown
Blocked By: | Test Case:
Related Tickets: | Blocking:
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This seems to be neither expected nor desired, and hence worth
investigating:
{{{
./cacheprof +RTS -t
<<ghc: 127588752 bytes, 243 GCs, 2261288/6551032 avg/max bytes residency
(6 samples), 15M in use, 0.00 INIT (0.00 elapsed), 0.12 MUT (0.12
elapsed), 0.05 GC (0.05 elapsed) :ghc>>
./cacheprof +RTS -t
<<ghc: 127392144 bytes, 242 GCs, 2261304/6551576 avg/max bytes residency
(6 samples), 15M in use, 0.00 INIT (0.00 elapsed), 0.11 MUT (0.11
elapsed), 0.04 GC (0.05 elapsed) :ghc>>
}}}
The allocations numbers change, when they shoudn’t.
Reproduced with 7.6.3 and current HEAD.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8611>
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