Arik Hadas has submitted this change and it was merged. Change subject: core: cache host's numa nodes ...................................................................... core: cache host's numa nodes Analyze of profiling dumps shows that a significant portion of the CPU time is spent on getting the numa nodes on the host. This can be improved by querying them only once in the host polling instead of doing that per-VM. We can cache it because it is not expected to change so it will be queried once and not per-polling operation, but it would maybe make sense to query that nodes along with the VM numa nodes in one query per-polling operation. So for now the optimization is just to reduce the frequency of the query of the host's numa nodes to be once per-polling. Change-Id: I5d72ab207f861ca8e050068d101c998343cffc60 Signed-off-by: Arik Hadas <ahadas@redhat.com> --- A backend/manager/modules/utils/src/main/java/org/ovirt/engine/core/utils/MemoizingSupplier.java M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/monitoring/VmAnalyzer.java M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/monitoring/VmAnalyzerFactory.java 3 files changed, 55 insertions(+), 12 deletions(-) Approvals: Martin Peřina: Looks good to me, but someone else must approve Shahar Havivi: Looks good to me, approved Jenkins CI: Passed CI tests Arik Hadas: Verified -- To view, visit https://gerrit.ovirt.org/53169 To unsubscribe, visit https://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I5d72ab207f861ca8e050068d101c998343cffc60 Gerrit-PatchSet: 12 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Arik Hadas <ahadas@redhat.com> Gerrit-Reviewer: Arik Hadas <ahadas@redhat.com> Gerrit-Reviewer: Jenkins CI Gerrit-Reviewer: Martin Peřina <mperina@redhat.com> Gerrit-Reviewer: Martin Sivák <msivak@redhat.com> Gerrit-Reviewer: Michal Skrivanek <michal.skrivanek@redhat.com> Gerrit-Reviewer: Michal Skrivanek <mskrivan@redhat.com> Gerrit-Reviewer: Roman Mohr <rmohr@redhat.com> Gerrit-Reviewer: Roy Golan <rgolan@redhat.com> Gerrit-Reviewer: Shahar Havivi <shavivi@redhat.com> Gerrit-Reviewer: gerrit-hooks <automation@ovirt.org>