From: Manfred Spraul <manfred@colorfullife.com>
To: Linus Torvalds <torvalds@transmeta.com>, linux-kernel@vger.kernel.org
Subject: Re: x86 ptep_get_and_clear question
Date: Thu, 15 Feb 2001 22:29:11 +0100 [thread overview]
Message-ID: <3A8C4A27.9AE0F7D9@colorfullife.com> (raw)
In-Reply-To: <3A8C254F.17334682@colorfullife.com> <200102151905.LAA62688@google.engr.sgi.com> <20010215201945.A2505@pcep-jamie.cern.ch> <96heaj$bvs$1@penguin.transmeta.com> <3A8C499A.E0370F63@colorfullife.com>
Manfred Spraul wrote:
>
> I just benchmarked a single flush_tlb_page().
>
> Pentium II 350: ~ 2000 cpu ticks.
> Pentium III 850: ~ 3000 cpu ticks.
>
I forgot the important part:
SMP, including a smp_call_function() IPI.
IIRC Ingo wrote that a local 'invplg' is around 100 ticks.
--
Manfred
next prev parent reply other threads:[~2001-02-15 21:29 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20010215173547.A2079@pcep-jamie.cern.ch>
[not found] ` <200102151723.JAA43255@google.engr.sgi.com>
2001-02-15 17:47 ` x86 ptep_get_and_clear question Jamie Lokier
2001-02-15 18:05 ` Kanoj Sarcar
2001-02-15 18:23 ` Kanoj Sarcar
2001-02-15 18:42 ` Jamie Lokier
2001-02-15 18:57 ` Kanoj Sarcar
2001-02-15 19:06 ` Ben LaHaise
2001-02-15 19:19 ` Kanoj Sarcar
2001-02-15 20:16 ` Linus Torvalds
2001-02-15 18:51 ` Manfred Spraul
2001-02-15 19:05 ` Kanoj Sarcar
2001-02-15 19:19 ` Jamie Lokier
2001-02-15 20:31 ` Linus Torvalds
2001-02-15 21:26 ` Manfred Spraul
2001-02-15 21:29 ` Manfred Spraul [this message]
2001-02-16 1:21 ` Linus Torvalds
2001-02-16 14:18 ` Jamie Lokier
2001-02-16 14:59 ` Manfred Spraul
2001-02-16 15:27 ` Jamie Lokier
2001-02-16 15:54 ` Manfred Spraul
2001-02-16 16:00 ` Jamie Lokier
2001-02-16 16:23 ` Manfred Spraul
2001-02-16 16:43 ` Jamie Lokier
2001-02-16 17:12 ` Manfred Spraul
2001-02-16 17:20 ` Jamie Lokier
2001-02-16 17:36 ` Linus Torvalds
2001-02-16 18:49 ` Manfred Spraul
2001-02-16 19:00 ` Linus Torvalds
2001-02-16 19:02 ` Ben LaHaise
2001-02-16 19:32 ` Linus Torvalds
2001-02-16 19:42 ` Ben LaHaise
2001-02-16 17:37 ` Jamie Lokier
2001-02-16 18:04 ` Manfred Spraul
2001-02-16 18:09 ` Jamie Lokier
2001-02-16 18:36 ` Hugh Dickins
2001-02-16 17:29 ` Ben LaHaise
2001-02-16 17:38 ` Linus Torvalds
2001-02-16 17:44 ` Ben LaHaise
2001-02-16 17:59 ` Linus Torvalds
2001-02-15 23:57 ` Jamie Lokier
2001-02-16 0:55 ` Linus Torvalds
2001-02-15 19:07 ` Jamie Lokier
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