Andrew Morton
546e0d2719
[PATCH] swsusp: read speedup
...
Implement async reads for swsusp resuming.
Crufty old PIII testbox:
15.7 MB/s -> 20.3 MB/s
Sony Vaio:
14.6 MB/s -> 33.3 MB/s
I didn't implement the post-resume bio_set_pages_dirty(). I don't really
understand why resume needs to run set_page_dirty() against these pages.
It might be a worry that this code modifies PG_Uptodate, PG_Error and
PG_Locked against the image pages. Can this possibly affect the resumed-into
kernel? Hopefully not, if we're atomically restoring its mem_map?
Cc: Pavel Machek <pavel@ucw.cz >
Cc: "Rafael J. Wysocki" <rjw@sisk.pl >
Cc: Jens Axboe <axboe@suse.de >
Cc: Laurent Riffard <laurent.riffard@free.fr >
Signed-off-by: Andrew Morton <akpm@osdl.org >
Signed-off-by: Linus Torvalds <torvalds@osdl.org >
2006-09-26 08:48:58 -07:00
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