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Re: GNU C++ 4.0.1/4.1.0 cache misses on MICO sources.

From: Mike Stump <mrs at apple dot com>
To: Karel Gardas <kgardas at objectsecurity dot com>
Cc: GCC Mailing List <gcc at gcc dot gnu dot org>
Date: Tue, 17 May 2005 17:00:05 -0700
Subject: Re: GNU C++ 4.0.1/4.1.0 cache misses on MICO sources.
References: <Pine.LNX.4.63.0505172233220.10815@silence.gardas.net> <m1acmt7es2.fsf@muc.de> <Pine.LNX.4.63.0505180015590.10815@silence.gardas.net>

On May 17, 2005, at 3:16 PM, Karel Gardas wrote:

1) the most expensive seems to be comptypes -- at least from data L2
   refill point of view (~17%)

2) comptypes is also the most CPU intensive operation since the most
   of time is spent there

I think comptypes can be sped up by canonicalizing types better, and also adding a conservative hash and checking it first.

Follow-Ups:
- Re: GNU C++ 4.0.1/4.1.0 cache misses on MICO sources.
  - From: Karel Gardas
- Re: GNU C++ 4.0.1/4.1.0 cache misses on MICO sources.
  - From: Mark Mitchell

References:
- GNU C++ 4.0.1/4.1.0 cache misses on MICO sources.
  - From: Karel Gardas
- Re: GNU C++ 4.0.1/4.1.0 cache misses on MICO sources.
  - From: Andi Kleen
- Re: GNU C++ 4.0.1/4.1.0 cache misses on MICO sources.
  - From: Karel Gardas

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