On Sun, Sep 15, 2024 at 07:08:35PM +0100, Simon Horman wrote:
> On Sat, Sep 14, 2024 at 09:56:24PM -0700, Shradha Gupta 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 <shradhagu...@linux.microsoft.com>
> > Reviewed-by: Haiyang Zhang <haiya...@microsoft.com>
>
> Hi Shradha,
>
> net-next is currently closed other than for bug fixes.
> Please consider reposting once it re-opens, after v6.12-rc1
> has been released.
Noted, thanks Simon
>
> --
> pw-bot: defer
