[ovs-git] Open vSwitch: ofproto-dpif: Rate limit calls to facet_learn(). (branch-1.10)
dev at openvswitch.org
dev at openvswitch.org
Mon Apr 1 19:25:25 UTC 2013
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commit 37419873b42963ff9da99b7f47cbde39f20f6184
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=37419873b42963ff9da99b7f47cbde39f20f6184
Author: Ethan Jackson <ethan at nicira.com>
ofproto-dpif: Rate limit calls to facet_learn().
In the TCP_CRR benchmark, ovs-vswitchd spends so much time in
update_stats() that it has a significant impact on flow setup
performance. Further work is needed in this area, but for now,
simply rate limiting facet_learn() has a roughly 10% improvement
with complex flow tables.
Signed-off-by: Ethan Jackson <ethan at nicira.com>
commit dffa93198738a0cae64cd2343d53445e3161d92d
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=dffa93198738a0cae64cd2343d53445e3161d92d
Author: Ethan Jackson <ethan at nicira.com>
ofproto-dpif: Rate limit facet_check_consistency()
With complex flow tables, facet_check_consistency() can be
expensive enough to show up in flow setup performance benchmarks.
In my testing this patch gives us a roughly 10% improvement in
TCP_CRR and ovs-benchmark.
Signed-off-by: Ethan Jackson <ethan at nicira.com>
-----------------------------------------------------------------------
Summary of changes:
ofproto/ofproto-dpif.c | 17 ++++++++++++++++-
1 files changed, 16 insertions(+), 1 deletions(-)
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