-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 06/30/2014 08:36 PM, Minchan Kim wrote: > Linux doesn't have an ability to free pages lazy while other OS > already have been supported that named by madvise(MADV_FREE). > > The gain is clear that kernel can discard freed pages rather than > swapping out or OOM if memory pressure happens. > > Without memory pressure, freed pages would be reused by userspace > without another additional overhead(ex, page fault + allocation + > zeroing). > Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx> Cc: Linux API > <linux-api@xxxxxxxxxxxxxxx> Cc: Hugh Dickins <hughd@xxxxxxxxxx> Cc: > Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Rik van Riel > <riel@xxxxxxxxxx> Cc: KOSAKI Motohiro > <kosaki.motohiro@xxxxxxxxxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxx> > Cc: Jason Evans <je@xxxxxx> Cc: Zhang Yanfei > <zhangyanfei@xxxxxxxxxxxxxx> Signed-off-by: Minchan Kim > <minchan@xxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> - -- All rights reversed -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTssKpAAoJEM553pKExN6DspUH/3fdn95zVIA6GGfmFG/g05Fm SYv82v0ee2gGM7yRGeVkFSVuj5qYCneyJeprERHBs43huafqqnWd9MMcZxxskNk7 MpyVmRsCh54qC2Y6Rqu5E15jEKjCcxss1vCbHp0ExtZHnfU29re+JB0oRE9IKszW p2r6rsolHtNY4otTAQ6pAtA6ioH1E0xppK5mpqHAUpFJuq3PqXbSsptFdl6AJciw 25zBB6iOdVgpciYwkn7yBvaZiY+sRuiRFSAH0klQVHlX0ZueIXYnJtybVhHSqGs/ Nu1/zhrRrohOcj0Ka6cTJBBH2RyXTmgcurfTUlI4IZzcDqJWtuXjXBty0wkhIZQ= =RjYx -----END PGP SIGNATURE----- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>