Increased memory usage with GHC 7.10.1

[Christiaan Baaij]

Actually, I meant only with -fno-specialise.

On 13 April 2015 at 21:09, Michal Terepeta <michal.terepeta at gmail.com>
wrote:

> On Mon, Apr 13, 2015 at 12:20 PM, Christiaan Baaij
> <christiaan.baaij at gmail.com> wrote:
> >
> > Hi,
> >
> > I wonder if this might be in any way related to the HUGE amount of new
> terms/types/coercions created by the specialiser as documented in:
> > https://ghc.haskell.org/trac/ghc/ticket/9630#comment:10
> >
> > I don’t have a profiled version of GHC, so I was wondering if you could
> run your tests with a ‘-fno-specialise’, and see how everything performs
> then?
> >
> > Cheers,
> >
> > Christiaan
>
> Unfortunately trac is timing out for me, so I'll have a look at the
> issues later...
>
> As for compiling haskell-src-exts with both -fno-specialise and
> -fno-call-arity,
> we're pretty much at the same level as GHC 7.8.4.
>
>
>
> Mon Apr 13 20:25 2015 Time and Allocation Profiling Report  (Final)
>
>   ghc +RTS -p -RTS  [...] -fno-specialise -fno-call-arity
>
> total time  =       89.93 secs   (89928 ticks @ 1000 us, 1 processor)
> total alloc = 93,495,685,792 bytes  (excludes profiling overheads)
>
> COST CENTRE       MODULE          %time %alloc
>
> SimplTopBinds     SimplCore        38.7   38.6
> pprNativeCode     AsmCodeGen        5.1    5.9
> StgCmm            HscMain           3.7    3.3
> occAnalBind.assoc OccurAnal         3.2    3.6
> OccAnal           SimplCore         3.2    3.6
> tc_rn_src_decls   TcRnDriver        3.1    2.5
> RegAlloc          AsmCodeGen        3.1    4.2
> regLiveness       AsmCodeGen        3.0    3.5
> FloatOutwards     SimplCore         2.7    2.4
> sink              CmmPipeline       2.6    2.7
> Simplify          SimplCore         2.5    0.1
> NewStranal        SimplCore         1.9    2.3
> genMachCode       AsmCodeGen        1.8    1.7
> layoutStack       CmmPipeline       1.6    1.7
> NativeCodeGen     CodeOutput        1.4    1.5
> FloatInwards      SimplCore         1.2    1.6
> CoreTidy          HscMain           1.2    1.2
> deSugar           HscMain           1.2    1.2
> do_block          Hoopl.Dataflow    1.1    0.7
> CorePrep          HscMain           1.0    1.1
> versioninfo       MkIface           0.9    1.0
> Parser            HscMain           0.9    1.2
> Digraph.scc       Digraph           0.9    1.5
> canEvVar          TcCanonical       0.7    1.0
>
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