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https://issues.apache.org/jira/browse/HBASE-17049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15662787#comment-15662787
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Duo Zhang commented on HBASE-17049:
-----------------------------------
With HBASE-17085 we can perform a little better in the PE.
{noformat}
./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --nomapred
--presplit=50 --size=50 --columns=50 --valueSize=200 --writeToWAL=true
--bloomFilter=NONE randomWrite 50
FSHLog: Min: 494940ms Max: 527185ms Avg: 520070ms
AsyncFSWAL-old: Min: 899553ms Max: 937701ms Avg: 931112ms
AsyncFSWAL-new:Min: 745193ms Max: 770322ms Avg: 764724ms
{noformat}
Still slower than FSHLog. Need to find out more.
Thanks.
> Find out why AsyncFSWAL issues much more syncs than FSHLog
> ----------------------------------------------------------
>
> Key: HBASE-17049
> URL: https://issues.apache.org/jira/browse/HBASE-17049
> Project: HBase
> Issue Type: Sub-task
> Components: wal
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Fix For: 2.0.0
>
>
> https://issues.apache.org/jira/browse/HBASE-16890?focusedCommentId=15647590&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15647590
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