From: Peter Zijlstra <peterz@infradead.org>
To: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dave Hansen <dave.hansen@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
lkp@01.org, Ingo Molnar <mingo@kernel.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>
Subject: Re: [sched] 143e1e28cb4: +17.9% aim7.jobs-per-min, -9.7% hackbench.throughput
Date: Tue, 12 Aug 2014 08:41:56 +0200 [thread overview]
Message-ID: <20140812064156.GK9918@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <53E99117.9010500@linux.vnet.ibm.com>
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On Tue, Aug 12, 2014 at 09:29:19AM +0530, Preeti U Murthy wrote:
> On 08/11/2014 07:03 PM, Peter Zijlstra wrote:
> >
> > Now I think I see why this is; we've reduced load balancing frequency
> > significantly on this machine due to:
>
> We have also changed the value of busy_factor to 32 from 64 across all
> domains. This would contribute to increased frequency of load balancing?
Not enough to offset the changes in min/max. Lowering it makes sense
because we've increased min/max for most situations.
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next prev parent reply other threads:[~2014-08-12 6:42 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-10 4:41 [sched] 143e1e28cb4: +17.9% aim7.jobs-per-min, -9.7% hackbench.throughput Fengguang Wu
2014-08-10 7:59 ` Peter Zijlstra
2014-08-10 10:54 ` Fengguang Wu
2014-08-10 15:05 ` Peter Zijlstra
2014-08-10 15:16 ` Ingo Molnar
2014-08-11 1:23 ` Fengguang Wu
2014-08-12 14:57 ` kodiak furr
2014-08-11 13:33 ` Peter Zijlstra
2014-08-12 3:59 ` Preeti U Murthy
2014-08-12 6:41 ` Peter Zijlstra [this message]
2014-08-12 14:30 ` Fengguang Wu
2014-08-25 13:47 ` Vincent Guittot
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