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SubjectRe: Intel P6 vs P7 system call performance
Linus Torvalds wrote:

> Uli, do you make public snapshots available so that people can test the
> new libraries and maybe see system-wide performance issues?

It is already available. I've announced it on the NPTL mailing list a
couple of days ago. There is no support without NPTL since the TLS
setup isn't present in sufficient form in the LinuxThreads code which
has to work on stone-old kernels. But the NPTL code is more than stable
enough to run on test systems. In fact, I've a complete system running
using it.

Announcement:

https://listman.redhat.com/pipermail/phil-list/2002-December/000387.html

It is not easy to build glibc and you can easily ruin your system. You
need very recent tools, the CVS version of glibc and the NPTL add-on.
See for instance

https://listman.redhat.com/pipermail/phil-list/2002-December/000352.html

for a recipe on how to build glibc and how to run binaries using it
*without* replacing your system's libc. There have been That's save but
still the build is demanding. I know I'll be lynched again for saying
this, but it's the only experience I have: use RHL8 and get the very
latest tools (gcc, binutils) from rawhide. Then you should be fine.

If there is interest in RPMs of the binaries I might _try_ to provide
some. But this would mean replacing the system's libc.

--
--------------. ,-. 444 Castro Street
Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA
Red Hat `--' drepper at redhat.com `---------------------------

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