Messages in this thread | | | Date | Sun, 24 Feb 2008 15:47:11 +0100 | From | Jörn Engel <> | Subject | Page scan keeps touching kernel text pages |
| |
While tracking down some unrelated bug I noticed that shrink_page_list() keeps testing very low page numbers (aka kernel text) until deciding that the page lacks a mapping and cannot get freed. Looks like a waste of cpu and cachelines to me.
Is there a better reason for this behaviour than lack of a patch?
Jörn
-- Joern's library part 11: http://www.unicom.com/pw/reply-to-harmful.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |