From: "Peter Wong" <wpeter@us.ibm.com>
To: akpm@zip.com.au, William Lee Irwin III <wli@holomorphy.com>,
linux-mm@kvack.org, lse-tech@lists.sourceforge.net
Cc: Bill Hartner <bhartner@us.ibm.com>,
"Martin J. Bligh" <mbligh@aracnet.com>
Subject: Re: Significant Memory Reduction Using Huge Page Patch on Database Workload
Date: Fri, 25 Oct 2002 13:38:23 -0500 [thread overview]
Message-ID: <OFEEF58F46.24F2AC24-ON85256C5D.00658701@pok.ibm.com> (raw)
Peter Wong wrote:
>
> Based upon the performance metrics and CPU utilization, the two
>kernels achieve similar performance. However, memory consumption
>by rmap and page tables is reduced significantly by using Bill's
>patch.
>
>
> 2.5.43-mm2 2.5.43-mm2+huge
> ==============================================================
> pte_chain (max) (MB) 4.3 182.4
>
>
> PageTables (max) (MB) 9.5 153.7
>
>
> In total, we save ~322 MB in the low memory area.
The "2.5.43-mm2" and "2.5.43-mm2+huge" in the header should be switched.
Regards,
Peter
Peter Wai Yee Wong
IBM LTC Performance Team
email: wpeter@us.ibm.com
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next reply other threads:[~2002-10-25 18:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-25 18:38 Peter Wong [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-10-25 16:38 Peter Wong
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