On 16/05/2022 07:51, Guangguan Wang wrote: > Send cdc msgs and write data inline if qp has sufficent inline > space, helps latency reducing. > > In my test environment, which are 2 VMs running on the same > physical host and whose NICs(ConnectX-4Lx) are working on > SR-IOV mode, qperf shows 0.4us-1.3us improvement in latency. > > Test command: > server: smc_run taskset -c 1 qperf > client: smc_run taskset -c 1 qperf <server ip> -oo \ > msg_size:1:2K:*2 -t 30 -vu tcp_lat > > The results shown below: > msgsize before after > 1B 11.9 us 10.6 us (-1.3 us) > 2B 11.7 us 10.7 us (-1.0 us) > 4B 11.7 us 10.7 us (-1.0 us) > 8B 11.6 us 10.6 us (-1.0 us) > 16B 11.7 us 10.7 us (-1.0 us) > 32B 11.7 us 10.6 us (-1.1 us) > 64B 11.7 us 11.2 us (-0.5 us) > 128B 11.6 us 11.2 us (-0.4 us) > 256B 11.8 us 11.2 us (-0.6 us) > 512B 11.8 us 11.3 us (-0.5 us) > 1KB 11.9 us 11.5 us (-0.4 us) > 2KB 12.1 us 11.5 us (-0.6 us) > > Guangguan Wang (2): > net/smc: send cdc msg inline if qp has sufficient inline space > net/smc: rdma write inline if qp has sufficient inline space > > net/smc/smc_ib.c | 1 + > net/smc/smc_tx.c | 17 ++++++++++++----- > net/smc/smc_wr.c | 5 ++++- > 3 files changed, 17 insertions(+), 6 deletions(-) > I like that change, thank you! For the series: Acked-by: Karsten Graul <kgraul@xxxxxxxxxxxxx>
