Re: too big min_free_kbytes

On 01/27/2011 01:52 PM, Andrea Arcangeli wrote:

  			if (!zone_watermark_ok_safe(zone, order,
-					8*high_wmark_pages(zone), end_zone, 0))
+					(zone->present_pages +
+					 KSWAPD_ZONE_BALANCE_GAP_RATIO-1) /
+					 KSWAPD_ZONE_BALANCE_GAP_RATIO +
+					high_wmark_pages(zone), end_zone, 0))
  				shrink_zone(priority, zone,&sc);

Isn't (zone->present_pages + 99) / 100 + high_wmark_pages(zone)
pretty much guaranteed to be significantly larger than the 8
times the high watermark we had before?

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