From: Benjamin LaHaise <bcrl@redhat.com>
To: Dave McCracken <dmccr@us.ibm.com>
Cc: Andrew Morton <akpm@digeo.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Linux Memory Management <linux-mm@kvack.org>
Subject: Re: Fork timing numbers for shared page tables
Date: Thu, 10 Oct 2002 17:21:30 -0400 [thread overview]
Message-ID: <20021010172130.A11796@redhat.com> (raw)
In-Reply-To: <175360000.1034279947@baldur.austin.ibm.com>; from dmccr@us.ibm.com on Thu, Oct 10, 2002 at 02:59:07PM -0500
On Thu, Oct 10, 2002 at 02:59:07PM -0500, Dave McCracken wrote:
> I don't know why exec introduces a small penalty for small tasks. I'm
> working on some optimizations that might help.
Compare against vfork() to see what kind of best case is possible, and
how much of the overhead in small tasks is just in non-vm overhead.
-ben
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin LaHaise <bcrl@redhat.com>
To: Dave McCracken <dmccr@us.ibm.com>
Cc: Andrew Morton <akpm@digeo.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Linux Memory Management <linux-mm@kvack.org>
Subject: Re: Fork timing numbers for shared page tables
Date: Thu, 10 Oct 2002 17:21:30 -0400 [thread overview]
Message-ID: <20021010172130.A11796@redhat.com> (raw)
In-Reply-To: <175360000.1034279947@baldur.austin.ibm.com>; from dmccr@us.ibm.com on Thu, Oct 10, 2002 at 02:59:07PM -0500
On Thu, Oct 10, 2002 at 02:59:07PM -0500, Dave McCracken wrote:
> I don't know why exec introduces a small penalty for small tasks. I'm
> working on some optimizations that might help.
Compare against vfork() to see what kind of best case is possible, and
how much of the overhead in small tasks is just in non-vm overhead.
-ben
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next prev parent reply other threads:[~2002-10-10 21:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-10 19:32 [PATCH 2.5.41-mm2+] Shared page table bugfix for mprotect Dave McCracken
[not found] ` <3DA5D893.CDD2407C@digeo.com>
2002-10-10 19:59 ` Fork timing numbers for shared page tables Dave McCracken
2002-10-10 19:59 ` Dave McCracken
2002-10-10 20:02 ` William Lee Irwin III
2002-10-10 20:02 ` William Lee Irwin III
2002-10-10 21:21 ` Benjamin LaHaise [this message]
2002-10-10 21:21 ` Benjamin LaHaise
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