Yifan Zhang has posted comments on this change. ( http://gerrit.cloudera.org:8080/15995 )
Change subject: [maintenance] use workload statistics to scale perf_improvement ...................................................................... Patch Set 2: (1 comment) http://gerrit.cloudera.org:8080/#/c/15995/1/src/kudu/tablet/tablet_mm_ops.cc File src/kudu/tablet/tablet_mm_ops.cc: http://gerrit.cloudera.org:8080/#/c/15995/1/src/kudu/tablet/tablet_mm_ops.cc@156 PS1, Line 156: uint64_t scans_started = metrics->scans_started->value() - last_scans_started_; > > While "rows scanned" does measure activity, it also scales as the dataset We want to speed up insert/update/delete operations, and compactions result in fewer key/delta file lookups, so maybe schedule compactions in priority for tablets that has more write activities may help. -- To view, visit http://gerrit.cloudera.org:8080/15995 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Ie3afcc359002d1392164ba2fda885f8930ef8696 Gerrit-Change-Number: 15995 Gerrit-PatchSet: 2 Gerrit-Owner: Yifan Zhang <[email protected]> Gerrit-Reviewer: Andrew Wong <[email protected]> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Yifan Zhang <[email protected]> Gerrit-Comment-Date: Fri, 05 Jun 2020 08:02:58 +0000 Gerrit-HasComments: Yes
