On Mon, 2012-08-20 at 10:04 +0100, Mel Gorman wrote: > Can the following patch be tested please? It is reported to fix an fio > regression that may be similar to what you are experiencing but has not > been picked up yet. > > - This seems to help here. Boot your machine with "mem=768M" or a bit less depending on your setup, and try a netperf. -> before patch : # netperf MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to localhost.localdomain () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 14.00 6.05 -> after patch : Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 18509.73 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html