Thread (24 messages) 24 messages, 8 authors, 2002-12-28

Re: shared pagetable benchmarking

From: Dave McCracken <hidden>
Date: 2002-12-27 20:16:34

--On Friday, December 27, 2002 12:02:56 -0800 Linus Torvalds
[off-list ref] wrote:
It doesn't break even on small forks. It _slows_them_down_.
I gave Andrew a patch that does make it break even on small forks, by doing
the copy at fork time when a process only has 3 pte pages.  My tests
indicate that any process with 4 or more pte pages usually is faster by
doing the share.

Dave McCracken

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