On Mon, 20 Aug 2012 11:30:59 +0200 Eric Dumazet <eric.duma...@gmail.com> wrote:
> 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 "seem to help"? Was previous performance fully restored? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
