Moti Asayag has submitted this change and it was merged. Change subject: core: performance improvement ...................................................................... core: performance improvement * initialized ArrayList to avoid copying arrays (tradeof is bigger memory footprint during initialization) * changed transforming macAddress stored in 'long' to String; loop is used instead of regex. --- this changes cuts CPU time approx to 50% of original. --- Note: code can be suboptimal when looking for LOT OF macs but range offers to little of them: in that case unneccesarily big array alocated and then trown away for no reason. But this should not be an issue. Change-Id: I09f87ebd1ea17d09a974ce6ca3e26bd2454a72fc Bug-Url: https://bugzilla.redhat.com/1063064 Signed-off-by: Martin Mucha <mmucha(a)redhat.com&gt; --- M backend/manager/modules/utils/src/main/java/org/ovirt/engine/core/utils/MacAddressRangeUtils.java A backend/manager/modules/utils/src/test/java/org/ovirt/engine/core/utils/MacAddressRangeUtilsTest.java 2 files changed, 39 insertions(+), 3 deletions(-) Approvals: Mike Kolesnik: Looks good to me, approved Martin Mucha: Verified -- To view, visit http://gerrit.ovirt.org/25940 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I09f87ebd1ea17d09a974ce6ca3e26bd2454a72fc Gerrit-PatchSet: 9 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Martin Mucha <mmucha(a)redhat.com&gt; Gerrit-Reviewer: Martin Mucha <mmucha(a)redhat.com&gt; Gerrit-Reviewer: Mike Kolesnik <mkolesni(a)redhat.com&gt; Gerrit-Reviewer: Moti Asayag <masayag(a)redhat.com&gt; Gerrit-Reviewer: Yevgeny Zaspitsky <yzaspits(a)redhat.com&gt; Gerrit-Reviewer: automation(a)ovirt.org Gerrit-Reviewer: oVirt Jenkins CI Server