[Bug 735020] Re: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset)
that window was closed when uploading 2.13 into natty. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735020 Title: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 735020] Re: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset)
you can find (after it's built) an eglibc version with the patch reverted in: https://launchpad.net/~ubuntu-toolchain-r/+archive/ppa Add to your sources.list: deb http://ppa.launchpad.net/ubuntu-toolchain-r/ppa/ubuntu natty main deb-src http://ppa.launchpad.net/ubuntu-toolchain-r/ppa/ubuntu natty main -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735020 Title: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 735020] Re: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset)
Turning off all SSEx routines for an issue with one routine (memcpy) will hurt performance quite a bit. Why not just stay at glibc 2.12 (with the memset changes we submitted to trunk) which will result in better performance and also deal with the memcpy issue? Or is the window for that closed? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735020 Title: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 735020] Re: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset)
We looked at machine with Ubuntu 11.04 on it. And it looks like __memset_sse2 is not really avalaible in a dump of the glibc at /lib/x86_64-linux-gnu/libc.so.6. Nor is __memcpy_ssse3 avalaible. In fact, none of the symbols with _sse* suffix are avalaible. Does Ubuntu use glibc or eglibc? If glibc is used, is it built with --enable- multiarch. Without the *_sse* routines, we expect glibc performance to be quite hindered on both AMD Barcelona (Greyhound core) and AMD Orochi (Bulldozer core) machines. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735020 Title: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 735020] Re: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset)
We had to turn off these optimisations on x86_64 systems due to bug 727064. They'll be re-enabled in Ubuntu 11.10 when we switch to glibc 2.14. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735020 Title: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 735020] Re: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset)
** Package changed: glibc (Ubuntu) = eglibc (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735020 Title: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 735020] Re: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset)
This bug was fixed in the package eglibc - 2.13-0ubuntu5 --- eglibc (2.13-0ubuntu5) natty; urgency=low * Enable SSE2 memset for AMD's upcoming Orochi processor and bugfix. LP: #735020. -- Matthias Klose d...@ubuntu.com Mon, 14 Mar 2011 21:35:41 +0100 ** Changed in: eglibc (Ubuntu) Status: New = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735020 Title: Ubuntu 11.04: Support AMD Bulldozer processor - glibc (memset) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
