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Message-ID: <CAF=yD-KozDxhwf1Arkbz5X_dYfZ5M40xr9hcxKGDRmeg1BOE=Q@mail.gmail.com> Date: Tue, 28 May 2019 16:09:07 -0400 From: Willem de Bruijn <willemdebruijn.kernel@...il.com> To: Fred Klassen <fklassen@...neta.com> Cc: "David S. Miller" <davem@...emloft.net>, Alexey Kuznetsov <kuznet@....inr.ac.ru>, Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>, Shuah Khan <shuah@...nel.org>, Network Development <netdev@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, linux-kselftest@...r.kernel.org, Willem de Bruijn <willemb@...gle.com> Subject: Re: [PATCH net-next v2 2/3] net/udpgso_bench.sh add UDP GSO audit tests On Tue, May 28, 2019 at 3:24 PM Fred Klassen <fklassen@...neta.com> wrote: > > Audit tests count the total number of messages sent and compares > with total number of CMSG received on error queue. Example: > > udp gso zerocopy timestamp audit > udp rx: 1599 MB/s 1166414 calls/s > udp tx: 1615 MB/s 27395 calls/s 27395 msg/s > udp rx: 1634 MB/s 1192261 calls/s > udp tx: 1633 MB/s 27699 calls/s 27699 msg/s > udp rx: 1633 MB/s 1191358 calls/s > udp tx: 1631 MB/s 27678 calls/s 27678 msg/s > Summary over 4.000 seconds... > sum udp tx: 1665 MB/s 82772 calls (27590/s) 82772 msgs (27590/s) > Tx Timestamps: 82772 received 0 errors > Zerocopy acks: 82772 received 0 errors > > Errors are thrown if CMSG count does not equal send count, > example: > > Summary over 4.000 seconds... > sum tcp tx: 7451 MB/s 493706 calls (123426/s) 493706 msgs (123426/s) > ./udpgso_bench_tx: Unexpected number of Zerocopy completions: 493706 expected 493704 received > > Also reduce individual test time from 4 to 3 seconds so that > overall test time does not increase significantly. > > Signed-off-by: Fred Klassen <fklassen@...neta.com> Acked-by: Willem de Bruijn <willemb@...gle.com> If respinning the series, please add a comment about adding -P to the tcp zerocopy test.
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