]> git.baikalelectronics.ru Git - kernel.git/commit
Merge branch 'sched-refactor-NOLOCK-qdiscs'
authorDavid S. Miller <davem@davemloft.net>
Thu, 17 May 2018 16:46:55 +0000 (12:46 -0400)
committerDavid S. Miller <davem@davemloft.net>
Thu, 17 May 2018 16:46:55 +0000 (12:46 -0400)
commit525bde8f2ff203f9a9db64e3c138fc0df5a0fef6
tree6e6b0d4339e495a4c94e8489f3b06a00033fa435
parent155a3ffab4f3c961ec722f65334ae10ad498c15c
parentbe7da60d224755d109959461b34352cbe38408a8
Merge branch 'sched-refactor-NOLOCK-qdiscs'

Paolo Abeni says:

====================
sched: refactor NOLOCK qdiscs

With the introduction of NOLOCK qdiscs, pfifo_fast performances in the
uncontended scenario degraded measurably, especially after the commit
3d13d70972a7 ("net: sched, fix OOO packets with pfifo_fast").

This series restore the pfifo_fast performances in such scenario back the
previous level, mainly reducing the number of atomic operations required to
perform the qdisc_run() call. Even performances in the contended scenario
increase measurably.

Note: This series is on top of:

sched: manipulate __QDISC_STATE_RUNNING in qdisc_run_* helpers
====================

Signed-off-by: David S. Miller <davem@davemloft.net>