RE: pte bit spin lock

From: Luck, Tony <tony.luck_at_intel.com>
Date: 2004-11-23 05:44:06
>But the copy_page_range issue seems to cost about 7% on lmbench fork
>which is fairly significant

Significant to lmbench perhaps ... but there is considerable difference
of opinion about the benefits of micro-benchmarks like this.  On the one
hand they make it easy to see the cost of a particular change, on the
other, too many people give too much weight to these numbers (a 7% change
in fork performance is not going to be measureable for almost all macro
benchmarks).

-Tony
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Received on Mon Nov 22 13:46:44 2004

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