On Thu, 2011-02-24 at 08:37 +0900, Minchan Kim wrote: > On Thu, Feb 24, 2011 at 7:44 AM, Andrew Morton > <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > On Sun, 20 Feb 2011 08:41:21 +0900 > > Minchan Kim <minchan.kim@xxxxxxxxx> wrote: > > > >> Resend. > > > > Reignore. > > > >> he patch is based on mmotm-2011-02-04 + > >> mm-add-replace_page_cache_page-function-add-freepage-hook.patch. > >> > >> On Fri, Feb 11, 2011 at 01:33:46AM +0900, Minchan Kim wrote: > >> > This patch optmizes replace_page_cache_page. > >> > > >> > 1) remove radix_tree_preload > >> > 2) single radix_tree_lookup_slot and replace radix tree slot > >> > 3) page accounting optimization if both pages are in same zone. > >> > > >> > Cc: Miklos Szeredi <mszeredi@xxxxxxx> > >> > Cc: Rik van Riel <riel@xxxxxxxxxx> > >> > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > >> > Cc: Mel Gorman <mel@xxxxxxxxx> > >> > Signed-off-by: Minchan Kim <minchan.kim@xxxxxxxxx> > >> > --- > >> > mm/filemap.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++--------- > >> > 1 files changed, 51 insertions(+), 10 deletions(-) > >> > > >> > Hi Miklos, > >> > This patch is totally not tested. > >> > Could you test this patch? > > > > ^^^ Because of this. > > > > Is it tested yet? > > > > Miklos. Could you test this? > If you are busy, let me know how to test it. I will. > Thanks. Grab git version of libfuse and do something like this: fuse/example/fusexmp_fh -obig_writes /mnt/fuse/ dd if=/tmp/random0 of=/mnt/fuse/tmp/random1 bs=1M md5sum /tmp/radom0 /tmp/random1 This should exercise the page moving. I'll review and test the patch when I have some time. Thanks, Miklos -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>