Thread (56 messages) 56 messages, 7 authors, 2011-10-17

Re: [PATCH] thp: tail page refcounting fix #5

From: Andi Kleen <hidden>
Date: 2011-09-02 01:17:24
Also in: lkml

Calling get_page/put_pages more times than necessary is never ideal, I
imagine the biggest cost is the atomic_inc on the head page that
I've actually seen it in profile logs, but I hadn't realized it was redundant.

Have to see if it brings a benefit to hot users.

-Andi

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