On Sat, 2005-07-23 at 16:48 +0200, Simon Strandman wrote: > With the glibc 2.3.5 currently in gentoo I get: > isidor ~ # ./memcpy 2200 1000 1048576 > Memory to memory copy rate = 1291.600098 MBytes / sec. Block size = 1048576. > > But with glibc 2.3.5 + amd64 optimized strings I get: > isidor ~ # ./memcpy 2200 1000 1048576 > Memory to memory copy rate = 2389.321777 MBytes / sec. Block size = 1048576. > > That's an improvement of over 1000mb/s! Suse 9.3 also gives about > 2300mb/s out of the box.
Hmm, I don't see much difference here. before: [EMAIL PROTECTED] ~ $ ./a.out 2420 1000 1048576 Memory to memory copy rate = 1110.198486 MBytes / sec. Block size = 1048576. after: aw allan # ./a.out 2420 1000 1048576 Memory to memory copy rate = 1154.922974 MBytes / sec. Block size = 1048576. Allan -- [email protected] mailing list
