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From: Peter Zijlstra <peterz@infradead.org>
To: Venkatesh Pallipadi <venki@google.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>,
Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, Paul Turner <pjt@google.com>,
Mike Galbraith <efault@gmx.de>, Nick Piggin <npiggin@gmail.com>
Subject: Re: Misc sd_idle related fixes
Date: Wed, 09 Feb 2011 10:29:38 +0100 [thread overview]
Message-ID: <1297243778.13327.143.camel@laptop> (raw)
In-Reply-To: <1297188819-19999-1-git-send-email-venki@google.com>
On Tue, 2011-02-08 at 10:13 -0800, Venkatesh Pallipadi wrote:
> Here are the 3 sd_idle related changes I tested with, for reference. Among
> the three, the third patch is the one that helps us in reducing idle cycles
> with one of our workloads and thus improves the latency response.
Have you tried what happens if you simply rip all that SMT stuff out and
simplify the code? Afaict much of the capacity stuff we have should have
a similar effect and is less confusing, no?
next prev parent reply other threads:[~2011-02-09 9:28 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-04 20:51 [PATCH] sched: Resolve sd_idle and first_idle_cpu Catch-22 Venkatesh Pallipadi
2011-02-04 21:25 ` [PATCH] sched: Resolve sd_idle and first_idle_cpu Catch-22 - v1 Venkatesh Pallipadi
2011-02-07 13:50 ` Peter Zijlstra
2011-02-07 18:21 ` Venkatesh Pallipadi
2011-02-07 19:53 ` Suresh Siddha
2011-02-08 17:37 ` Venkatesh Pallipadi
2011-02-08 18:13 ` Misc sd_idle related fixes Venkatesh Pallipadi
2011-02-09 9:29 ` Peter Zijlstra [this message]
2011-02-10 17:24 ` Venkatesh Pallipadi
2011-02-08 18:13 ` [PATCH 1/3] sched: Resolve sd_idle and first_idle_cpu Catch-22 Venkatesh Pallipadi
2011-02-08 18:13 ` [PATCH 2/3] sched: fix_up broken SMT load balance dilation Venkatesh Pallipadi
2011-02-08 18:13 ` [PATCH 3/3] sched: newidle balance set idle_timestamp only on successful pull Venkatesh Pallipadi
2011-02-09 3:37 ` Mike Galbraith
2011-02-09 15:55 ` [PATCH] sched: Resolve sd_idle and first_idle_cpu Catch-22 - v1 Peter Zijlstra
2011-02-12 1:20 ` Suresh Siddha
2011-02-14 22:38 ` [PATCH] sched: Wholesale removal of sd_idle logic Venkatesh Pallipadi
2011-02-15 17:01 ` Vaidyanathan Srinivasan
2011-02-15 18:26 ` Venkatesh Pallipadi
2011-02-16 8:53 ` Vaidyanathan Srinivasan
2011-02-16 11:43 ` Peter Zijlstra
2011-02-16 13:50 ` [tip:sched/core] " tip-bot for Venkatesh Pallipadi
2011-02-15 9:15 ` [PATCH] sched: Resolve sd_idle and first_idle_cpu Catch-22 - v1 Peter Zijlstra
2011-02-15 19:11 ` Suresh Siddha
2011-02-18 1:05 ` Alex,Shi
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