Messages in this thread | | | Date | Fri, 20 Sep 2002 10:53:30 +0100 | From | Padraig Brady <> | Subject | Re: [ANNOUNCE] Native POSIX Thread Library 0.1 |
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Ulrich Drepper wrote: > We are pleased to announce the first publically available source > release of a new POSIX thread library for Linux [snip] > called Native POSIX Thread Library, NPTL.
Great! Where does this leave NGPT though? I had assumed that this was going to be the next pthread implementation in glibc.
also:
-------- Original Message -------- Subject: glibc threading performance Date: Mon, 16 Sep 2002 10:42:42 +0100 From: Padraig Brady <padraig.brady@corvil.com> To: Ingo Molnar <mingo@redhat.com>, Ulrich Drepper <drepper@redhat.com>
Hey guys,
I noticed you're looking at threading stuff lately, and was wondering about this thread: http://sources.redhat.com/ml/bug-glibc/2001-12/msg00048.html
In summary wouldn't it be better to have a per process flag that was only set when pthread_create() is called. If the flag is not set, then you don't need to do locking. This locking seems to have huge overhead. For e.g. I patched uniq in textutils to use getc_unlocked() rather than getc() and got a 300% performance increase!
cheers, Pádraig.
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