From: Nick Piggin <nickpiggin@yahoo.com.au>
To: vatsa@in.ibm.com
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>
Subject: Re: Question on build_sched_domains
Date: Fri, 24 Mar 2006 18:45:21 +1100 [thread overview]
Message-ID: <4423A391.4000301@yahoo.com.au> (raw)
In-Reply-To: <20060324071255.GB22150@in.ibm.com>
Srivatsa Vaddagiri wrote:
> On Fri, Mar 24, 2006 at 08:28:34AM +0530, Srivatsa Vaddagiri wrote:
>
>>Taking the example of 4 node system which are in the same
>>sched_domain_node_span(), I see that we end up allocating 16
>>times (when 4 would have sufficed?).
>
>
> Maybe this is it to avoid touching same memory from different nodes?
>
Yeah I think what's happening is that the sched groups structures
are not shared between nodes. (It's been a while since I looked at
this code, and it is a bit tricky to follow).
Aside, it should be using kmalloc_node now...
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
next prev parent reply other threads:[~2006-03-24 7:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-24 2:58 Question on build_sched_domains Srivatsa Vaddagiri
2006-03-24 7:12 ` Srivatsa Vaddagiri
2006-03-24 7:45 ` Nick Piggin [this message]
2006-03-25 8:36 ` Srivatsa Vaddagiri
2006-03-26 2:21 ` Nick Piggin
2006-03-26 2:41 ` Srivatsa Vaddagiri
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