Re: [PATCH v5 00/45] CPU hotplug: stop_machine()-free CPU hotplug
From: Russell King - ARM Linux
Date: Fri Feb 08 2013 - 10:42:33 EST
On Thu, Feb 07, 2013 at 11:41:34AM +0530, Srivatsa S. Bhat wrote:
> On 02/07/2013 09:44 AM, Rusty Russell wrote:
> > "Srivatsa S. Bhat" <srivatsa.bhat@xxxxxxxxxxxxxxxxxx> writes:
> >> On 01/22/2013 01:03 PM, Srivatsa S. Bhat wrote:
> >> Avg. latency of 1 CPU offline (ms) [stop-cpu/stop-m/c latency]
> >> # online CPUs Mainline (with stop-m/c) This patchset (no stop-m/c)
> >> 8 17.04 7.73
> >> 16 18.05 6.44
> >> 32 17.31 7.39
> >> 64 32.40 9.28
> >> 128 98.23 7.35
> > Nice!
> Thank you :-)
> > I wonder how the ARM guys feel with their quad-cpu systems...
> That would be definitely interesting to know :-)
That depends what exactly you'd like tested (and how) and whether you'd
like it to be a test-chip based quad core, or an OMAP dual-core SoC.
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