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Re: Slow pthread_create() under high load
- To: Ulrich Drepper <drepper at cygnus dot com>
- Subject: Re: Slow pthread_create() under high load
- From: Robert de Vries <rhdv at rhdv dot cistron dot nl>
- Date: Sun, 26 Mar 2000 12:26:14 +0200 (CEST)
- cc: Matthew Kirkwood <weejock at ferret dot lmh dot ox dot ac dot uk>, Jeff Garzik <jgarzik at mandrakesoft dot com>, sasha at mysql dot com, Kaz Kylheku <kaz at ashi dot footprints dot net>, glibc-linux at ricardo dot ecn dot wfu dot edu, Linux Kernel List <linux-kernel at vger dot rutgers dot edu>, mysql at lists dot mysql dot com, monty at mysql dot com
- Reply-To: glibc-linux at ricardo dot ecn dot wfu dot edu
On 25 Mar 2000, Ulrich Drepper wrote:
> Matthew Kirkwood <weejock@ferret.lmh.ox.ac.uk> writes:
>
> > > Pointers/authors/search keys for these patches?
> >
> > CLONE_PPID, CLONE_PARENT, CLONE_PPIDOK.
>
> ...and one patch to implement a shared signal queue.
That would be my patch:
http://www.rhdv.cistron.nl/sigqueue.html
It is beta however. It works, but the signal delivery seems a bit slow on
my single processor machine. Normal signal delivery takes < 2 microsecs,
using a shared queue, it takes 8 or 10 microsecs or so.
Robert
--
Robert de Vries
rhdv@rhdv.cistron.nl