diff options
| author |   David S. Miller <davem@davemloft.net> | 2018-11-03 15:40:01 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-03 15:40:01 -0700 |
| commit | cb53fd54e340ce54d2bc2397cd0b70c712642f98 (patch) | |
| tree | 73330b5959a58e476ed613f2fe8e31fad7c28f5a /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | Merge branch 's390-qeth-fixes' (diff) | |
| parent | net/mlx4_en: use __netdev_tx_sent_queue() (diff) | |
| download | linux-dev-cb53fd54e340ce54d2bc2397cd0b70c712642f98.tar.xz linux-dev-cb53fd54e340ce54d2bc2397cd0b70c712642f98.zip | |
Merge branch 'net-bql-better-deal-with-GSO'
Eric Dumazet says:
====================
net: bql: better deal with GSO
While BQL bulk dequeue works well for TSO packets, it is
not very efficient as soon as GSO is involved.
On a GSO only workload (UDP or TCP), this patch series
can save about 8 % of cpu cycles on a 40Gbit mlx4 NIC,
by keeping optimal batching, and avoiding expensive
doorbells, qdisc requeues and reschedules.
This patch series :
- Add __netdev_tx_sent_queue() so that drivers
can implement efficient BQL and xmit_more support.
- Implement a work around in dev_hard_start_xmit()
for drivers not using __netdev_tx_sent_queue()
- changes mlx4 to use __netdev_tx_sent_queue()
v2: Tariq and Willem feedback addressed.
added __netdev_tx_sent_queue() (Willem suggestion)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions