Date: Mon, 04 Jun 2007 08:27:36 -0700 From: Garrett Cooper <youshi10@u.washington.edu> To: Alexander Kabaev <kabaev@gmail.com> Cc: current@freebsd.org Subject: Re: Kudos to everyone who worked on the gcc-4.2 merge Message-ID: <46642F68.9050102@u.washington.edu> In-Reply-To: <20070604091628.51e9632a@kan.dnsalias.net> References: <Pine.LNX.4.43.0706031730150.8063@hymn03.u.washington.edu> <20070604091628.51e9632a@kan.dnsalias.net>
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Alexander Kabaev wrote: > On Sun, 3 Jun 2007 17:30:15 -0700 (PDT) > youshi10@u.washington.edu wrote: > > >> I just wanted to thank everyone who helped make the gcc 4.2 merge >> possible -- I can see a noticeable performance increase (1.5x ~ 2.0x >> load time decrease) in my server (P4 HTT with SMP). >> >> This will be one of the great changes that will put FreeBSD back on >> the map closer to many Linux distros. >> >> Once gcc 4.2.1 gets in the tree, things will be much better, I'm >> sure :). >> >> Thank you very much, and let me know if you need testing with gcc >> 4.2.1 when it rolls around ;). >> >> -Garrett >> >> > Thanks, but I think kudos are addressed to wrong people. I very much > doubt that GCC can be responsible for any, let alone dramatic, > performance differences. Most likely you see effects of hard work done > by SMP scalability guys. > > Ok. Interesting. All the changes I could see were at the kernel level (I saw a speed improvement after installing the kernel, before I ran make installworld). -Garrett
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