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Date:      Wed, 22 Mar 2000 19:46:19 -0500 (EST)
From:      mi@video-collage.com, UNEXPECTED_DATA_AFTER_ADDRESS@.SYNTAX-ERROR
To:        Brad Knowles <blk@skynet.be>
Cc:        obrien@FreeBSD.ORG, Howard Leadmon <howardl@account.abs.net>, freebsd-alpha@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG
Subject:   benefits of -ON+1 (Re: Compiler problems with -O2 ...)
Message-ID:  <200003230046.TAA79141@dufus.video-collage.com>
In-Reply-To: <v04220803b4ff04459dcb@[194.78.238.239]>

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On 23 Mar, Brad Knowles wrote:
= 	I'm sorry, at best here we're talking a few tenths of a 
= percentage point of increased speed (if that), and maybe a few 
= milliseconds saved -- right?

I have some benchmark results at http://virtual-estates.net/bm/ ...
It analyzes archivers (gzip and bzip). Bzip is not as hand-optimized
as gzip (which uses asm on i386), and it shows -- -O3 makes it
noticeably faster compared to -O, while gzip is faster with -O...

	-mi



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