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SPEC 2006 - binary size comparison for Options that control Optimization

From: Martin Liška <mliska at suse dot cz>
To: GCC Development <gcc at gcc dot gnu dot org>
Cc: Jan Hubicka <hubicka at ucw dot cz>
Date: Tue, 15 Jul 2014 09:45:11 +0200
Subject: SPEC 2006 - binary size comparison for Options that control Optimization
Authentication-results: sourceware.org; auth=none

 Hello,
   following table compares optimization levels as -O0, -Os, -O1-3 and -Ofast. Columns in the table include all ELF sections bigger than 5% for a binary. Apart from that I took -O2 as a base option and I tried to disable every option in this level. Similarly I measured impact of the rest of optimizations enabled in O3 or Ofast. That gives us about 100 configurations that can be compared for speed. I would like to ask Honza to mark configurations that make sense to be run for speed comparison.

Thanks,
Martin

Attachment: spec_binary_size_comparison.txt
Description: Text document

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- Re: SPEC 2006 - binary size comparison for Options that control Optimization
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