From: Suresh Siddha <suresh.b.siddha@intel.com>
To: Gautham R Shenoy <ego@in.ibm.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Balbir Singh <balbir@in.ibm.com>,
Rusty Russel <rusty@rustcorp.com.au>,
Paul E McKenney <paulmck@us.ibm.com>,
Nathan Lynch <ntl@pobox.com>, Ingo Molnar <mingo@elte.hu>,
"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
Dipankar Sarma <dipankar@in.ibm.com>,
Shoahua Li <shaohua.li@linux.com>
Subject: Re: [RFD PATCH 0/4] cpu: Bulk CPU Hotplug support.
Date: Wed, 17 Jun 2009 06:50:28 -0700 [thread overview]
Message-ID: <1245246628.27006.10556.camel@localhost.localdomain> (raw)
In-Reply-To: <20090616053431.30891.18682.stgit@sofia.in.ibm.com>
On Mon, 2009-06-15 at 22:38 -0700, Gautham R Shenoy wrote:
> So, of the accounted time, a major chunk of time is consumed by
> cpuset_track_online_cpus() while handling CPU_DEAD and CPU_ONLINE
> notifications.
>
> 11.320205 ms: cpuset_track_online_cpus : CPU_DEAD
> 12.767882 ms: cpuset_track_online_cpus : CPU_ONLINE
>
> cpuset_trace_online_cpus() among other things performs the task of rebuilding
> the sched_domains for every online CPU in the system.
Are the above numbers with CONFIG_SCHED_DEBUG turned on/off?
thanks,
suresh
prev parent reply other threads:[~2009-06-17 13:53 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-16 5:38 Gautham R Shenoy
2009-06-16 5:38 ` [RFD PATCH 1/4] powerpc: cpu: Reduce the polling interval in __cpu_up() Gautham R Shenoy
2009-06-16 16:06 ` Nathan Lynch
2009-06-16 16:37 ` Gautham R Shenoy
2009-06-16 5:38 ` [RFD PATCH 2/4] cpu: sysfs interface for hotplugging bunch of CPUs Gautham R Shenoy
2009-06-16 16:22 ` Nathan Lynch
2009-06-16 16:33 ` Gautham R Shenoy
2009-06-16 5:38 ` [RFD PATCH 3/4] cpu: Define new functions cpu_down_mask and cpu_up_mask Gautham R Shenoy
2009-06-16 5:38 ` [RFD PATCH 4/4] cpu: measure time taken by subsystem notifiers during cpu-hotplug Gautham R Shenoy
2009-06-16 6:23 ` [RFD PATCH 0/4] cpu: Bulk CPU Hotplug support Andrew Morton
2009-06-16 8:07 ` Vaidyanathan Srinivasan
2009-06-16 21:00 ` Paul E. McKenney
2009-06-24 15:02 ` Pavel Machek
2009-06-17 7:32 ` Peter Zijlstra
2009-06-17 7:40 ` Balbir Singh
2009-06-17 14:38 ` Paul E. McKenney
2009-06-17 15:07 ` Ingo Molnar
2009-06-17 20:26 ` Peter Zijlstra
2009-06-20 15:35 ` Ingo Molnar
2009-06-22 6:08 ` Nathan Lynch
2009-06-17 13:50 ` Suresh Siddha [this message]
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