On Mon, Sep 30, 2024 at 9:14 AM Shradha Gupta <shradhagupta@xxxxxxxxxxxxxxxxxxx> wrote: > > Through some experiments, we found out that increasing the default > RX buffers count from 512 to 1024, gives slightly better throughput > and significantly reduces the no_wqe_rx errs on the receiver side. > Along with these, other parameters like cpu usage, retrans seg etc > also show some improvement with 1024 value. > > Following are some snippets from the experiments > > ntttcp tests with 512 Rx buffers > --------------------------------------- > connections| throughput| no_wqe errs| > --------------------------------------- > 1 | 40.93Gbps | 123,211 | > 16 | 180.15Gbps | 190,120 | > 128 | 180.20Gbps | 173,508 | > 256 | 180.27Gbps | 189,884 | > > ntttcp tests with 1024 Rx buffers > --------------------------------------- > connections| throughput| no_wqe errs| > --------------------------------------- > 1 | 44.22Gbps | 19,864 | > 16 | 180.19Gbps | 4,430 | > 128 | 180.21Gbps | 2,560 | > 256 | 180.29Gbps | 1,529 | > > So, increasing the default RX buffers per queue count to 1024 > > Signed-off-by: Shradha Gupta <shradhagupta@xxxxxxxxxxxxxxxxxxx> > Reviewed-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx> > --- > include/net/mana/mana.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > Looks good to me. Reviewed-by: Pavan Chebbi <pavan.chebbi@xxxxxxxxxxxx>
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