On Mon, Jul 12, 2021 at 04:42:27PM -0700, Ben Pfaff wrote: > On Thu, Jul 08, 2021 at 08:59:24PM +0200, Dumitru Ceara wrote: > > Hi Ben, > > > > As discussed earlier, during the OVN meeting, I've noticed a new > > performance issue with ovn-northd-ddlog when running it against a > > database from one of our more recent scale tests: > > > > http://people.redhat.com/~dceara/ovn-northd-ddlog-tests/20210708/ovnnb_db.db > > > > ovn-northd-ddlog uses 100% CPU and never really reaches the point to > > perform the first transaction to the Southbound. Memory usage is also > > very high, I stopped it at 45GB RSS. > > > > To test I did: > > SANDBOXFLAGS="--nbdb-source=/tmp/ovnnb_db.db --ddlog" make sandbox > > Thanks. I've been spending a lot of time with this Friday and today. > It is a bit different from the other issues I've looked at. The > previous ones were inefficient production of relatively small output. > This one is inefficient production (and storage) of rather large output > (millions of flows). I'm trying to get help from Leonid on how to > reduce the memory usage.
Leonid has been looking into this and we're going to talk through a solution tomorrow. With luck, I'll have some patches soon after that. _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
