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Re: GCC still getting a lot slower
- From: Nathanael Nerode <neroden at twcny dot rr dot com>
- To: gcc at gcc dot gnu dot org
- Date: Tue, 31 Dec 2002 16:41:16 -0500
- Subject: Re: GCC still getting a lot slower
Diego Novillo wrote:
>On Tue, 31 Dec 2002, Paolo Carlini wrote:
>
>> Neil Booth wrote:
>>
>> >Any idea what killed GCC bootstrap time in Mid-Dec?
>> >
>> Wild guess
>>
>> http://gcc.gnu.org/ml/gcc-cvs/2002-12/msg00481.html
>>
>>Very likely. Bootstrap times for C and Fortran went from 2,000
>secs on 2002-12-16 to 2,500 secs on 2002-12-17 (25% slowdown).
>
>http://people.redhat.com/dnovillo/spec95/gcc/gcc-stats.html
Frankly, I don't think we should look at bootstrap time. A number of
the largest changes in B-I-B were necessary build process changes, which
are quite likely to slow down the build *of* the compiler, but not the
performance of the compiler. Or, in other words, "so what?". ;-)
Can we test compile time change of some *fixed* piece of code, perhaps?
--Nathanael