Re: Reading /proc/stat is slooow

From: Andreas Schwab <schwab_at_suse.de>
Date: 2005-12-06 20:57:51
"Luck, Tony" <tony.luck@intel.com> writes:

>>I just tried CONFIG_NR_CPUS=1024 ... and I don't see anything
>>like a 20ms delay on 2.6.15-rc5.  How many actual cpus on your
>>machine (I only have two on the machine where I tested)?
>
> Ah ... but I didn't have CONFIG_HOTPLUG_CPU set

Ah, that's the difference.  I didn't have CONFIG_HOTPLUG_CPU set in 2.6.13
either.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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"And now for something completely different."
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Received on Tue Dec 06 20:58:37 2005

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