From: Ingo Oeser <ioe-lkml@rameria.de>
To: travis@sgi.com
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <ak@suse.de>,
mingo@elte.hu, Christoph Lameter <clameter@sgi.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/5] x86: Add config variables for SMP_MAX
Date: Fri, 18 Jan 2008 21:04:21 +0100 [thread overview]
Message-ID: <200801182104.22486.ioe-lkml@rameria.de> (raw)
In-Reply-To: <20080118183011.917801000@sgi.com>
Hi Mike,
On Friday 18 January 2008, travis@sgi.com wrote:
> +config THREAD_ORDER
> + int "Kernel stack size (in page order)"
> + range 1 3
> + depends on X86_64_SMP
> + default "3" if X86_SMP_MAX
> + default "1"
> + help
> + Increases kernel stack size.
> +
Could you please elaborate, why this is needed and put more info about
this requirement into this patch description?
People worked hard to push data allocation from stack to heap to make
THREAD_ORDER of 0 and 1 possible. So why increase it again and why does this
help scalability?
Many thanks and Best Regards
Ingo Oeser, puzzled a bit :-)
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next prev parent reply other threads:[~2008-01-18 20:04 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-18 18:30 [PATCH 0/5] x86: Reduce memory usage for large count NR_CPUs fixup travis
2008-01-18 18:30 ` [PATCH 1/5] x86: Change size of node ids from u8 to u16 fixup travis
2008-01-18 19:56 ` Jan Engelhardt
2008-01-18 19:59 ` Mike Travis
2008-01-19 4:03 ` Yinghai Lu
2008-01-19 4:36 ` David Rientjes
2008-01-19 4:43 ` Yinghai Lu
2008-01-19 5:17 ` David Rientjes
2008-01-19 6:20 ` Yinghai Lu
2008-01-19 21:25 ` Mike Travis
2008-01-19 22:33 ` David Rientjes
2008-01-20 0:41 ` Mike Travis
2008-01-20 1:31 ` Yinghai Lu
2008-01-20 6:22 ` David Rientjes
2008-01-18 18:30 ` [PATCH 2/5] x86: Change NR_CPUS arrays in numa_64 fixup travis
2008-01-18 18:30 ` [PATCH 3/5] x86: Change bios_cpu_apicid to percpu data variable fixup travis
2008-01-18 18:30 ` [PATCH 4/5] x86: Add config variables for SMP_MAX travis
2008-01-18 20:04 ` Ingo Oeser [this message]
2008-01-18 20:10 ` Christoph Lameter
2008-01-18 20:14 ` Mike Travis
2008-01-18 20:36 ` Andi Kleen
2008-01-18 20:48 ` Mike Travis
2008-01-18 21:02 ` [PATCH 4/5] x86: Add config variables for SMP_MAX II Andi Kleen
2008-01-18 20:48 ` [PATCH 4/5] x86: Add config variables for SMP_MAX Ingo Molnar
2008-01-18 20:55 ` Mike Travis
2008-01-18 20:58 ` Andi Kleen
2008-01-28 16:45 ` Paul Jackson
2008-01-28 17:00 ` Andi Kleen
2008-01-18 20:46 ` Ingo Molnar
2008-01-19 14:52 ` Ingo Molnar
2008-01-19 15:15 ` Ingo Molnar
2008-01-19 15:24 ` Ingo Molnar
2008-01-19 21:52 ` Mike Travis
2008-01-19 23:24 ` Mike Travis
2008-01-20 1:14 ` Mike Travis
2008-01-19 21:39 ` Mike Travis
2008-01-18 18:30 ` [PATCH 5/5] x86: Add debug of invalid per_cpu map accesses travis
2008-01-18 18:33 ` Andi Kleen
2008-01-18 18:49 ` Mike Travis
2008-01-18 18:56 ` Christoph Lameter
2008-01-18 20:49 ` Ingo Molnar
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