From: "Martin J. Bligh" <mbligh@aracnet.com>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: Maneesh Soni <maneesh@in.ibm.com>, Andrew Morton <akpm@digeo.com>,
linux-kernel@vger.kernel.org, viro@math.psu.edu
Subject: Re: 2.5.36-mm1 dbench 512 profiles
Date: Fri, 20 Sep 2002 16:22:20 -0700 [thread overview]
Message-ID: <231070000.1032564140@flay> (raw)
In-Reply-To: <20020920231126.GN3530@holomorphy.com>
>>> AFAICT, with one bottleneck out of the way, a new one merely arises to
>>> take its place. Ugly. OTOH the qualitative difference is striking. The
>>> interactive responsiveness of the machine, even when entirely unloaded,
>>> is drastically improved, along with such nice things as init scripts
>>> and kernel compiles also markedly faster. I suspect this is just the
>>> wrong benchmark to show throughput benefits with.
>
> On Fri, Sep 20, 2002 at 02:30:23PM -0700, Martin J. Bligh wrote:
>> Hmmm ... I think you need the NUMA aware scheduler ;-)
>> On the plus side, that does look like RCU pretty much obliterated the dcache
>> problems ....
>
> This sounds like a likely solution to the expense of load_balance().
> Do you have a patch for it floating around?
I have a really old hacky one from Mike Kravetz, or Michael Hohnbaum
is working on something new, but I don't think it's ready yet ....
I think Mike's will need some rework. Will send it to you ...
M.
next prev parent reply other threads:[~2002-09-20 23:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-19 22:30 2.5.36-mm1 dbench 512 profiles William Lee Irwin III
2002-09-19 23:18 ` Hanna Linder
2002-09-19 23:38 ` Andrew Morton
2002-09-19 23:45 ` Hanna Linder
2002-09-20 0:08 ` William Lee Irwin III
2002-09-20 4:02 ` William Lee Irwin III
2002-09-20 7:59 ` Maneesh Soni
2002-09-20 8:06 ` William Lee Irwin III
2002-09-20 12:03 ` William Lee Irwin III
2002-09-20 18:51 ` Hanna Linder
2002-09-20 20:32 ` Hanna Linder
2002-09-20 20:54 ` Dipankar Sarma
2002-09-20 20:39 ` William Lee Irwin III
2002-09-20 21:30 ` Martin J. Bligh
2002-09-20 23:11 ` William Lee Irwin III
2002-09-20 23:22 ` Martin J. Bligh [this message]
2002-09-21 7:52 ` William Lee Irwin III
2002-09-20 14:34 ` Dave Hansen
2002-09-20 16:07 ` Martin J. Bligh
2002-09-20 17:48 ` Dipankar Sarma
2002-09-20 17:40 ` Dipankar Sarma
2002-09-20 20:28 ` Dipankar Sarma
2002-09-20 5:14 ` William Lee Irwin III
2002-09-20 6:59 ` William Lee Irwin III
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