You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@hbase.apache.org by "Zheng Hu (JIRA)" <ji...@apache.org> on 2018/12/28 09:12:00 UTC

[jira] [Created] (HBASE-21657) PrivateCellUtil#estimatedSerializedSizeOf has been the bottleneck in 100% scan case.

Zheng Hu created HBASE-21657:
--------------------------------

             Summary: PrivateCellUtil#estimatedSerializedSizeOf has been the bottleneck in 100% scan case.
                 Key: HBASE-21657
                 URL: https://issues.apache.org/jira/browse/HBASE-21657
             Project: HBase
          Issue Type: Bug
            Reporter: Zheng Hu
            Assignee: Zheng Hu
         Attachments: hbase20-ssd-100-scan-traces.svg

We are evaluating the performance of branch-2, and find that the throughput in SSD cluster is almost the same as HDD cluster. so I made a FlameGraph on RS, and found that the PrivateCellUtil#estimatedSerializedSizeOf cost about 29% cpu, Obviously, it has been the bottleneck in 100% scan case.

See the [^hbase20-ssd-100-scan-traces.svg]



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)