On Wed, Sep 18, 2002 at 06:38:47AM -0700, Jeff Bailey wrote: > On Wed, Sep 18, 2002 at 09:33:51AM -0400, Ben Collins wrote: > > > And yes, there will be atleast i586/i686/v9/v9b optimized libs when > > we release 2.2.xx/2.3.x. The /etc/ld.so.nohwcap patch was meant to > > solve the problem I had with this during woody. > > I don't think I've seen a reply from my email to you on this: At what > threshold is this worthwhile? How are you benchmarking this?
For sparcv9, I know the difference first hand (just check the debian-sparc archives for what simply going from v7 to v8 does for libssl on ultrasparc's). For Sparc, the primary helper is the h/w muldiv support we gain by leaving v7. Also means I don't have to kill v7 support on the entire sparc dist just to give the v8/v9 users some speedups. As for Intel, pretty much the same applies. The speed up from the faster h/w math ops help in critical places like libm, ssl, etc. I saw before where someone said that simple pentium optimizations gave them 3/4% increase. That's good enough for me to justify it. Ben -- Debian - http://www.debian.org/ Linux 1394 - http://www.linux1394.org/ Subversion - http://subversion.tigris.org/ Deqo - http://www.deqo.com/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
