Messages in this thread | | | Date | Thu, 29 Sep 2005 14:54:00 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] vm - swap_prefetch v12 |
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Con Kolivas <kernel@kolivas.org> wrote: > > Once pages have been added to the swapped list, a timer is started, testing > for conditions suitable to prefetch swap pages every 5 seconds. Suitable > conditions are defined as lack of swapping out or in any pages, and no > watermark tests failing. Significant amounts of dirtied ram also prevent > prefetching. It then checks that we have spare ram looking for at > least 3* pages_high free per zone and if it succeeds that will prefetch > pages from swap.
Did you consider poking around in gendisk.disk_stats to determine whether the swap disk(s) are idleish? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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