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Re: Faster compilation speed
- From: Jeff Sturm <jsturm at one-point dot com>
- To: Richard dot Earnshaw at arm dot com
- Cc: David Edelsohn <dje at watson dot ibm dot com>, Richard Henderson <rth at redhat dot com>, "David S. Miller" <davem at redhat dot com>, <gcc at gcc dot gnu dot org>
- Date: Tue, 20 Aug 2002 08:37:49 -0400 (EDT)
- Subject: Re: Faster compilation speed
On Tue, 20 Aug 2002, Richard Earnshaw wrote:
> > gcc-2.95.3 20010315 (release)
> >
> > Source I/D$ miss -O2 I/D$ miss -O0
> > ------ ------------- -------------
> > reload.c 28 36
> > insn-recog.c 48 36
>
> Do you have/can you get data for TLB misses?
I had done that on alpha, but didn't initially report the figures. Would
a comparison to 2.95 also be useful?
gcc version 3.3 20020802 (experimental)
---------------------------------------------------------------------------
cc1 -O2 reload.i
issues/cycles = 0.51 issues/dcache_miss = 26.93 issues/dtb_miss = 1214.36
---------------------------------------------------------------------------
cc1 reload.i
issues/cycles = 0.52 issues/dcache_miss = 31.29 issues/dtb_miss = 1854.16
Jeff