Re: [PATCH 4/5] add isolate pages vmstat

From: Christoph Lameter
Date: Tue Jul 07 2009 - 12:50:20 EST


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?

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