From: William Lee Irwin III <wli@holomorphy.com>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: "Luck, Tony" <tony.luck@intel.com>,
Andrew Morton <akpm@digeo.com>, Peter Wong <wpeter@us.ibm.com>,
linux-mm@kvack.org, lse-tech@lists.sourceforge.net,
riel@nl.linux.org, dmccr@us.ibm.com, gh@us.ibm.com,
Bill Hartner <bhartner@us.ibm.com>,
Troy C Wilson <wilsont@us.ibm.com>
Subject: Re: [Lse-tech] Re: Examining the Performance and Cost of Revesema ps on 2.5.26 Under Heavy DBWorkload
Date: Tue, 17 Sep 2002 14:47:53 -0700 [thread overview]
Message-ID: <20020917214753.GA2179@holomorphy.com> (raw)
In-Reply-To: <129560000.1032298951@flay>
At some point in the past, Tony Luck wrote:
>> Can't you use LD_PRELOAD tricks to sneak a different version shmget/shmat
>> to your DB2 binary so that you can intercept the important calls and
>> divert them to use huge tlb pages?
On Tue, Sep 17, 2002 at 02:42:31PM -0700, Martin J. Bligh wrote:
> If we had a shmget/shmat call that supported large pages, that would
> probably make it easier ? ;-) That's the whole issue - large pages aren't
> supported with standard syscalls, so every app is required to rewrite their
> memory handling, which isn't going to happen.
> M.
The pressure on this never lets up. It's being done, though I can't say
I'm entirely happy with how quickly/slowly I'm getting it done myself.
Bill
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next prev parent reply other threads:[~2002-09-17 21:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-17 21:22 Luck, Tony, Martin
2002-09-17 21:42 ` Martin J. Bligh
2002-09-17 21:47 ` William Lee Irwin III [this message]
2002-09-17 21:58 ` Martin J. Bligh
2002-09-17 22:49 ` Hubertus Franke
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