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Re: gcc 3.3 garbage collector defaults
- From: Andi Kleen <ak at suse dot de>
- To: Benjamin Kosnik <bkoz at redhat dot com>
- Cc: Andi Kleen <ak at suse dot de>, zack at codesourcery dot com, gcc at gcc dot gnu dot org,libstdc++ at gcc dot gnu dot org
- Date: Mon, 27 Jan 2003 19:49:13 +0100
- Subject: Re: gcc 3.3 garbage collector defaults
- References: <20030127102539.5e4ce5f6.bkoz@redhat.com> <20030127164753.GA5986@wotan.suse.de> <873cnebkhr.fsf@egil.codesourcery.com> <20030127170014.GA14134@wotan.suse.de> <20030127123451.30d7e3e9.bkoz@redhat.com>
On Mon, Jan 27, 2003 at 12:34:51PM -0600, Benjamin Kosnik wrote:
>
> Oh my. This makes a real difference!
>
> These timings are just for libstdc++, on an 800Mhz Athlon.
>
> time make all
> 248.736u 26.373s 4:59.60 91.8% 0+0k 0+0io 503943pf+0w
>
> time make CXXFLAGS="--param ggc-min-heapsize=8192" all
> 214.521u 27.306s 4:10.44 96.5% 0+0k 0+0io 512759pf+0w
What does happen when you use 16MB and perhaps increase ggc-min-expand to
50% ?
-Andi