On Tue, Jul 19, 2016 at 08:55:10AM +0300, Liran Schour wrote: > Hold session's conditions in ovsdb_monitor_session_condition. Pass it > to ovsdb_monitor for generating "update2" notifications. > Add functions that can generate "update2" notification for a > "monitor_cond" session. > JSON cache is enabled only for session's with true condition only. > "monitor_cond" and "monitor_cond_change" are RFC 7047 extensions > described by ovsdb-server(1) manpage. > > Performance evaluation: > OVN is the main candidate for conditional monitoring usage. It is clear that > conditional monitoring reduces computation on the ovn-controller (client) side > due to the reduced size of flow tables and update messages. Performance > evaluation shows up to 75% computation reduction. > However, performance evaluation shows also a reduction in computation on the > SB > ovsdb-server side proportional to the degree that each logical network is > spread over physical hosts in the DC. Evaluation shows that in a realistic > scenarios there is a computation reduction also in the server side. > > Evaluation on simulated environment of 50 hosts and 1000 logical ports shows > the following results (cycles #): > > LN spread over # hosts| master | patch | change > ------------------------------------------------------------- > 1 | 24597200127 | 24339235374 | 1.0% > 6 | 23788521572 | 19145229352 | 19.5% > 12 | 23886405758 | 17913143176 | 25.0% > 18 | 25812686279 | 23675094540 | 8.2% > 24 | 28414671499 | 24770202308 | 12.8% > 30 | 31487218890 | 28397543436 | 9.8% > 36 | 36116993930 | 34105388739 | 5.5% > 42 | 37898342465 | 38647139083 | -1.9% > 48 | 41637996229 | 41846616306 | -0.5% > 50 | 41679995357 | 43455565977 | -4.2% > > Signed-off-by: Liran Schour <lir...@il.ibm.com>
Thanks, got it. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
