#3016: Long compile times, large memory use with static data in 6.10
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Reporter: dons | Owner: igloo
Type: bug | Status: new
Priority: normal | Milestone: 6.12.1
Component: Compiler | Version: 6.10.1
Severity: normal | Resolution:
Keywords: static data | Difficulty: Unknown
Testcase: simplCore/should_compile/T3016 | Os: Unknown/Multiple
Architecture: Unknown/Multiple |
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Comment (by awick):
Well, it's here when it hits swap (again, that's at a bit over 2GB, and
takes around 3 minutes):
{{{
ghc -O2 -funbox-strict-fields --make Foo.hs
[ 1 of 25] Compiling Data.Structs ( Data/Structs.hs, Data/Structs.o )
[ 2 of 25] Compiling Data.Data31 ( Data/Data31.hs, Data/Data31.o )
}}}
This is a 32-bit machine, as an aside. It completes after ~30 minutes,
which is actually better than I remembered, although still pretty
ridiculous when it's just compiling constants. The memory use tends to
peak around 2.5GB, but spends most of its time at 2.0GB. I'll try to
replicate your HEAD build shortly.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3016#comment:13>
GHC <http://www.haskell.org/ghc/>
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