Zheng Hu created HBASE-21657:
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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]
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