On Thu, Mar 13, 2014 at 9:26 PM, Sepherosa Ziehau <[email protected]> wrote: > > Hi all, > > Following stats are for folks interested in DragonFly's TCP netperf > performance on 10G network (as of 9f1b012): > > Testing system hardware: > Host: i7-3770 w/ hyperthreading enabled, dual channel DDR3-1600 memory (8GB x > 2) > NIC: Intel 82599ES (connected w/ Intel XDACBL1M direct attach cable) > > TSO burst size is default to 12000B for DragonFly's ix. > > +-------+ +-------+ > | | | | > | | ix0 ---- ix0 | | > | A | | B | > | | ix1 ---- ix1 | | > | | | | > +-------+ +-------+ > > B runs 'netserver -N' > > 1) TCP_STREAM (total 18840Mbps, 2 ports, 5 run average): > > tcp_stream -H B0 -i 64 -l 60 & > tcp_stream -H B1 -i 64 -l 60 > > The above commands starts 128 netperf TCP_STREAM tests to B0 and B1. > > The results: > ~9424Mbps on for each set of test, i.e. total 18840Mbps (5 run average). > Jain's fairness index for each set of test > 0.85 (1.0 is the best). > > CPU usage statistics: > On TX side (A): ~25% sys, ~2% user, ~7% intr. Almost no contention. > On RX side (B): ~35% sys, ~3% user, ~10% intr. Mainly contended on rcvtok. > Interrupt rate is ~16000 on each CPU (interrupt moderation is > default to 8000hz for DragonFly's ix) > > 2) TCP_STREAM + TCP_MAERTS (total 37279Mbps, 2 ports, 5 run average): > > tcp_stream -H B0 -i 32 -l 60 & > tcp_stream -H B1 -i 32 -l 60 & > tcp_stream -H B0 -i 32 -l 60 -r & > tcp_stream -H B1 -i 32 -l 60 -r > > The above commands starts 64 netperf TCP_STREAM and 64 TCP_MAERTS > tests to B0 and B1. > > The results: > ~9220Mbps - ~9400Mbps for each set of test, i.e. total 37279Mbps (5 > runs average) > Jain's fairness index for each set of test > 0.80 (1.0 is the best). > > CPU usage statistics: > ~75% sys, ~4% user, ~20% intr. Mainly contended on rcvtok. The > tests are CPU limited. System is still responsive during the test. > Interrupt rate is ~16000 on each CPU (interrupt moderation is > default to 8000hz for DragonFly's ix) > > Best Regards, > sephe > > -- > Tomorrow Will Never Die
Thanks, could you post TCP_RR data ?
