Thread (66 messages) 66 messages, 4 authors, 2011-03-01
STALE5690d

[PATCH 5/5] ARM: smp: Skip secondary cpu calibration to speed-up boot

From: Russell King - ARM Linux <hidden>
Date: 2011-01-24 10:30:43
Also in: linux-omap

On Mon, Jan 24, 2011 at 02:21:19PM +0530, Santosh Shilimkar wrote:
On some architectures, secondary cores shares clock with primiary
core and hence scale together. Hence secondary core lpj calibration
is not necessary and can be skipped to save considerable time.

This can speed up the secondary cpu boot and hotplug cpu online
paths.
I still point out that this will be a user visible change in /proc/cpuinfo.
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