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| author |   Alexei Starovoitov <ast@plumgrid.com> | 2014-09-30 17:53:21 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-10-01 22:08:12 -0400 |
| commit | 38b2cf2982dc73d3f07fe84fec8cc4ed9f64c1c5 (patch) | |
| tree | e1eeab1caf5d330a4bb9c8eeb4543af5c38c769b /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | net: bridge: add a br_set_state helper function (diff) | |
| download | wireguard-linux-38b2cf2982dc73d3f07fe84fec8cc4ed9f64c1c5.tar.xz wireguard-linux-38b2cf2982dc73d3f07fe84fec8cc4ed9f64c1c5.zip | |
net: pktgen: packet bursting via skb->xmit_more
This patch demonstrates the effect of delaying update of HW tailptr.
(based on earlier patch by Jesper)
burst=1 is the default. It sends one packet with xmit_more=false
burst=2 sends one packet with xmit_more=true and
2nd copy of the same packet with xmit_more=false
burst=3 sends two copies of the same packet with xmit_more=true and
3rd copy with xmit_more=false
Performance with ixgbe (usec 30):
burst=1 tx:9.2 Mpps
burst=2 tx:13.5 Mpps
burst=3 tx:14.5 Mpps full 10G line rate
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions