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stack commented on HBASE-20411: ------------------------------- MutableSegment does not show in the locking sampling when the patch is in place. See attached 2.load.patched.17704.lock.svg and 2.load.patched.2.17704.lock.svg Only makes for minor uptick in write throughput though. > Ameliorate MutableSegment synchronize > ------------------------------------- > > Key: HBASE-20411 > URL: https://issues.apache.org/jira/browse/HBASE-20411 > Project: HBase > Issue Type: Bug > Reporter: stack > Priority: Major > Attachments: 2.load.patched.17704.lock.svg, > 2.load.patched.2.17704.lock.svg, 41901.lock.svg, > HBASE-20411.branch-2.0.001.patch > > > This item is migrated from HBASE-20236 so it gets dedicated issue. > Let me upload evidence that has this synchronize as a stake in our write-time > perf. I'll migrate the patch I posted with updates that come of comments > posted by [~mdrob] on the HBASE-20236 issue. -- This message was sent by Atlassian JIRA (v7.6.3#76005)