From: Ulrich Drepper <drepper@redhat.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@infradead.org>,
akpm@linux-foundation.org, hugh@veritas.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, briangrant@google.com,
cgd@google.com, mbligh@google.com,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: pthread_create() slow for many threads; also time to revisit 64b context switch optimization?
Date: Wed, 13 Aug 2008 07:36:07 -0700 [thread overview]
Message-ID: <48A2F157.7000303@redhat.com> (raw)
In-Reply-To: <20080813142529.GB21129@elte.hu>
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Ingo Molnar wrote:
> not sure exactly what numbers you mean, but there are lots of numbers in
> the first mail, attached below. For example:
I mean numbers indicating that it doesn't hurt performance on any of
today's machines. If there are machines where it makes a difference
then we need the flag to indicate the _preference_ for a low stack, as
opposed to indicating a _requirement_.
- --
a?? Ulrich Drepper a?? Red Hat, Inc. a?? 444 Castro St a?? Mountain View, CA a??
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next prev parent reply other threads:[~2008-08-13 14:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <af8810200808121736q76640cc1kb814385072fe9b29@mail.gmail.com>
2008-08-13 0:45 ` Pardo
2008-08-13 10:44 ` Ingo Molnar
2008-08-13 13:35 ` Arjan van de Ven
2008-08-13 14:21 ` Ulrich Drepper
2008-08-13 14:25 ` Ingo Molnar
2008-08-13 14:36 ` Ulrich Drepper [this message]
2008-08-13 15:10 ` Ingo Molnar
2008-08-13 15:21 ` Ulrich Drepper
2008-08-13 15:40 ` Ingo Molnar
2008-08-13 15:55 ` Ulrich Drepper
2008-08-13 16:02 ` Ingo Molnar
2008-08-15 15:54 ` Jamie Lokier
2008-08-15 16:03 ` Ingo Molnar
2008-08-15 17:13 ` Ulrich Drepper
2008-08-15 17:19 ` Ingo Molnar
2008-08-15 17:23 ` Ulrich Drepper
2008-08-15 19:00 ` Ingo Molnar
2008-08-13 17:09 ` Linus Torvalds
2008-08-13 18:04 ` Ulrich Drepper
2008-08-13 18:16 ` Arjan van de Ven
2008-08-13 18:22 ` Ulrich Drepper
2008-08-13 16:05 ` H. Peter Anvin
2008-08-13 20:42 ` Andi Kleen
2008-08-13 20:56 ` Andrew Morton
2008-08-13 21:46 ` Andi Kleen
2008-08-15 12:43 ` Ingo Molnar
2008-08-15 13:33 ` Andi Kleen
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