On Wed, May 30, 2018 at 6:36 AM Eric Dumazet <eduma...@google.com> wrote:
> Here are the good ones, using latest David Miller net tree. ( plus > https://patchwork.ozlabs.org/patch/922528/ but that should not matter here) > llpaa23:/export/hda3/google/edumazet# ./netperf -H 2607:f8b0:8099:e18:: -t > UDP_STREAM > MIGRATED UDP STREAM TEST from ::0 (::) port 0 AF_INET6 to > 2607:f8b0:8099:e18:: () port 0 AF_INET6 > Socket Message Elapsed Messages > Size Size Time Okay Errors Throughput > bytes bytes secs # # 10^6bits/sec > 212992 65507 10.00 216236 0 11331.89 > 212992 10.00 215068 11270.68 > There are few drops because of the too small > /proc/sys/net/core/rmem_default ( 212992 as seen in netperf output) for > these kind of stress. > ( each 64KB datagram actually consumes half the budget ...) Once rmem_default is set to 1,000,000 and mtu set back to 1500 (instead of 5102 on my testbed) results are indeed better. lpaa23:/export/hda3/google/edumazet# ./netperf -H 2607:f8b0:8099:e18:: -t UDP_STREAM -l 10 MIGRATED UDP STREAM TEST from ::0 (::) port 0 AF_INET6 to 2607:f8b0:8099:e18:: () port 0 AF_INET6 Socket Message Elapsed Messages Size Size Time Okay Errors Throughput bytes bytes secs # # 10^6bits/sec 212992 65507 10.00 231457 0 12129.56 1000000 10.00 231457 12129.56
