Messages in this thread | | | Date | Tue, 07 Jul 2009 13:23:48 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH 4/5] add isolate pages vmstat |
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Christoph Lameter wrote: > On Tue, 7 Jul 2009, KOSAKI Motohiro wrote: > >> +++ b/include/linux/mmzone.h >> @@ -100,6 +100,8 @@ enum zone_stat_item { >> NR_BOUNCE, >> NR_VMSCAN_WRITE, >> NR_WRITEBACK_TEMP, /* Writeback using temporary buffers */ >> + NR_ISOLATED_ANON, /* Temporary isolated pages from anon lru */ >> + NR_ISOLATED_FILE, /* Temporary isolated pages from file lru */ > > LRU counters are rarer in use then the counters used for dirty pages etc. > > Could you move the counters for reclaim into a separate cacheline?
I don't get the point of that - these counters are per-cpu anyway, so why would they need to be in a separate cacheline?
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