From: "Stephen C. Tweedie" <sct@redhat.com>
To: James Simmons <jsimmons@edgeglobal.com>
Cc: "Stephen C. Tweedie" <sct@redhat.com>,
Marcus Sundberg <erammsu@kieray1.p.y.ki.era.ericsson.se>,
linux-mm@kvack.org
Subject: Re: mm->mmap_sem
Date: Thu, 30 Sep 1999 15:54:34 +0100 (BST) [thread overview]
Message-ID: <14323.31146.614744.699106@dukat.scot.redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.10.9909292012290.31287-100000@imperial.edgeglobal.com>
Hi,
On Wed, 29 Sep 1999 20:17:01 -0400 (EDT), James Simmons
<jsimmons@edgeglobal.com> said:
> Yikes. I think the best solution is to just put the process that owns
> the framebuffer to be put to sleep just before accel engine access. Wake
> it up once its done.
On SMP, that still requires inter-CPU interrupts to all processors in
the worst case, as the process may already be running elsewhere. It
doesn't get around the IPI cost.
--Stephen
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next prev parent reply other threads:[~1999-09-30 14:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-09-22 21:02 mm->mmap_sem James Simmons
1999-09-24 0:07 ` mm->mmap_sem Stephen C. Tweedie
1999-09-24 14:59 ` mm->mmap_sem James Simmons
1999-09-24 18:09 ` mm->mmap_sem Stephen C. Tweedie
1999-09-25 1:24 ` mm->mmap_sem James Simmons
1999-09-25 14:55 ` mm->mmap_sem Andrea Arcangeli
1999-09-25 16:50 ` mm->mmap_sem James Simmons
1999-09-25 17:06 ` mm->mmap_sem Andrea Arcangeli
1999-09-26 1:19 ` mm->mmap_sem James Simmons
1999-09-26 14:07 ` mm->mmap_sem Andrea Arcangeli
1999-09-27 8:55 ` mm->mmap_sem Marcus Sundberg
1999-09-27 19:31 ` mm->mmap_sem James Simmons
1999-09-29 23:00 ` mm->mmap_sem Stephen C. Tweedie
1999-09-30 0:17 ` mm->mmap_sem James Simmons
1999-09-30 0:23 ` mm->mmap_sem Benjamin C.R. LaHaise
1999-09-30 14:59 ` mm->mmap_sem James Simmons
1999-09-30 15:15 ` mm->mmap_sem Benjamin C.R. LaHaise
1999-09-30 16:05 ` mm->mmap_sem James Simmons
1999-09-30 14:54 ` Stephen C. Tweedie [this message]
1999-09-27 14:16 ` mm->mmap_sem Stephen C. Tweedie
1999-09-27 20:22 ` mm->mmap_sem James Simmons
1999-09-27 14:13 ` mm->mmap_sem Stephen C. Tweedie
1999-09-27 8:08 ` mm->mmap_sem Neil Conway
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