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Message-ID: <6278d2220705020843l718b3272k5d6ebf8b827d0806@mail.gmail.com>
Date: Wed, 2 May 2007 16:43:44 +0100
From: "Daniel J Blueman" <daniel.blueman@gmail.com>
To: "Rajib Majumder" <rajibm2005@gmail.com>
Subject: Re: Kernel Scalability
Cc: "Linux Kernel" <linux-kernel@vger.kernel.org>
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On 2 May, 14:00, "Rajib Majumder" <rajibm2005@gmail.com> wrote:
> Hi,
>
> I am wondering if 2.4.x/2.6.x kernel is scalable enough to run on
> 8-CPU hardware. Do we have any scalability comparison data between
> 2.4/2.6 kernels and beyond 4-CPU?
>
> If yes, is the scalablity is near linear?
>
> Any input is appreciated.

There are 128-processor IA64 systems which run recent 2.6 kernels out
there; the per-processor counters, RCU and page-fault scalability work
has been instrumental to the necessary scaling for decent resource
usage on these.

IIRC, there were some patches being developed to improve pagecache
scalability lately too, but I guess it all depends on what kind of
workload you have...

> Thanks
>
> Rajib
-- 
Daniel J Blueman
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