On Thu, May 29, 2014 at 12:36 AM, Ben Pfaff <[email protected]> wrote: > On Wed, May 28, 2014 at 12:04 AM, lin shaopeng <[email protected]> wrote: > > Some heads up, we changed our flow idle_timeout to 300, then ran the test > > again, and got around 6000 packet-in per second. > > After some investigation, it turns out that most of the ovs-vswitchd CPU > > cycles are consumed > > by add flow, like classifier_rule_overlaps(), > miniflow_equal_in_minimask(), > > miniflow_get__ ()... > > Checking for overlapping flows in the classifier is very expensive and > it is usually > unnecessary. If you don't really need to enable that feature, turn it off. >
Thanks, we are considering it.
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