On Tue, Jul 25, 2023 at 10:38 AM <[email protected]> wrote: > > From: Numan Siddique <[email protected]> > > This patch series adds the support to handle load balancer and > load balancer group changes incrementally in the "northd" engine > node. "flow" engine node doesn't support I-P yet and falls back > to full recompute. Changes to logical switches and router's load > balancer and load balancer group columns are also handled incrementally > provided those are the only changes to them. > > Below are the scale testing results done with these patches applied > using ovn-heater. The test ran the scenario - > ocp-500-density-heavy.yml [1]. > > With these patches applied (with load balancer I-P handling in northd > engine node) the resuts are: > > ------------------------------------------------------------------------------------------------------------------------------------------------------- > Min (s) Median (s) 90%ile (s) 99%ile (s) Max (s) Mean (s) Total (s) Count Failed > ------------------------------------------------------------------------------------------------------------------------------------------------------- > Iteration Total 0.132929 2.157103 3.314847 3.331561 4.378626 1.581889 197.736147 125 0 > Namespace.add_ports 0.005217 0.005760 0.006565 0.013348 0.021014 0.006106 0.763214 125 0 > WorkerNode.bind_port 0.035205 0.045458 0.052278 0.059804 0.063941 0.045652 11.413122 250 0 > WorkerNode.ping_port 0.005075 0.006814 3.088548 3.192577 4.242026 0.726453 181.613284 250 0 > ------------------------------------------------------------------------------------------------------------------------------------------------------- > > The results with the present main are: > > ------------------------------------------------------------------------------------------------------------------------------------------------------- > Min (s) Median (s) 90%ile (s) 99%ile (s) Max (s) Mean (s) Total (s) Count Failed > ------------------------------------------------------------------------------------------------------------------------------------------------------- > Iteration Total 4.377260 6.486962 7.502040 8.322587 8.334701 6.559002 819.875306 125 0 > Namespace.add_ports 0.005112 0.005484 0.005953 0.009153 0.011452 0.005662 0.707752 125 0 > WorkerNode.bind_port 0.035360 0.042732 0.049152 0.053698 0.056635 0.043215 10.803700 250 0 > WorkerNode.ping_port 0.005338 1.599904 7.229649 7.798039 8.206537 3.209860 802.464911 250 0 > ------------------------------------------------------------------------------------------------------------------------------------------------------- > > Few observations: > > - The total time taken has come down significantly from 819 seconds to 197 > to complete the density heavy tests (excluding the base cluster > bringup) > - 99%ile with these patches is 3.3 seconds compared to 8.3 seconds for the > main. > - 90%file with these patches is 3.3 seconds compared to 7.5 seconds for > the main. > - CPU utilization of northd during the test with these patches > is between 100% to 300% which is almost the same as main. > Main difference being that, with these patches the test duration is > less and hence overall less CPU utilization. >
Thanks Numan for the revision and I'm so glad to see the performance improvements! I should find the details in the patches but it would be helpful if you could briefly summarize the changes of v3, especially the ones that fix the performance regressions of v2 reported by Ilya. Regards, Han > [1] - https://github.com/ovn-org/ovn-heater/blob/main/test-scenarios/ocp-500-density-heavy.yml > > > Numan Siddique (8): > northd I-P: Sync SB load balancers in a separate engine node. > northd: Add a new engine node - lb_data. > northd: Add initial I-P for load balancer and load balancer groups > northd: Refactor the 'northd' node code which handles logical switch > changes. > northd: Handle load balancer changes for a logical switch. > northd: Handle load balancer group changes for a logical switch. > northd: Sync SB Port bindings NAT column in a separate engine node. > northd: Handle load balancer/group changes for a logical router. > > lib/lb.c | 286 +++++-- > lib/lb.h | 94 ++- > northd/automake.mk | 2 + > northd/en-lb-data.c | 745 ++++++++++++++++++ > northd/en-lb-data.h | 94 +++ > northd/en-lflow.c | 9 +- > northd/en-northd.c | 119 ++- > northd/en-northd.h | 3 + > northd/en-sync-sb.c | 74 ++ > northd/en-sync-sb.h | 10 + > northd/inc-proc-northd.c | 32 +- > northd/northd.c | 1566 +++++++++++++++++++++++++------------- > northd/northd.h | 39 +- > tests/ovn-northd.at | 261 +++++++ > 14 files changed, 2704 insertions(+), 630 deletions(-) > create mode 100644 northd/en-lb-data.c > create mode 100644 northd/en-lb-data.h > > -- > 2.40.1 > > _______________________________________________ > dev mailing list > [email protected] > https://mail.openvswitch.org/mailman/listinfo/ovs-dev _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
