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https://issues.apache.org/jira/browse/HBASE-5699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14247111#comment-14247111
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stack commented on HBASE-5699:
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What would the charts look like if no disk friction at all, i.e. no a mocked
WAL? Are we using all available i/o or are we blocked internally --
cpu/locks/context switching? Nice graphs Sean. How'd you make them/run the
tests?
> Run with > 1 WAL in HRegionServer
> ---------------------------------
>
> Key: HBASE-5699
> URL: https://issues.apache.org/jira/browse/HBASE-5699
> Project: HBase
> Issue Type: Improvement
> Components: Performance, wal
> Reporter: binlijin
> Assignee: Sean Busbey
> Priority: Critical
> Attachments: HBASE-5699.3.patch.txt, HBASE-5699.4.patch.txt,
> HBASE-5699_#workers_vs_MiB_per_s_1x1col_512Bval_wal_count_1,2,4.tiff,
> HBASE-5699_write_iops_multiwal-1_1_to_200_threads.tiff,
> HBASE-5699_write_iops_multiwal-2_10,50,120,190,260,330,400_threads.tiff,
> HBASE-5699_write_iops_multiwal-4_10,50,120,190,260,330,400_threads.tiff,
> HBASE-5699_write_iops_multiwal-6_10,50,120,190,260,330,400_threads.tiff,
> HBASE-5699_write_iops_upstream_1_to_200_threads.tiff, PerfHbase.txt,
> hbase-5699_multiwal_400-threads_stats_sync_heavy.txt,
> hbase-5699_total_throughput_sync_heavy.txt,
> results-hbase5699-upstream.txt.bz2, results-hbase5699-wals-1.txt.bz2,
> results-updated-hbase5699-wals-2.txt.bz2,
> results-updated-hbase5699-wals-4.txt.bz2,
> results-updated-hbase5699-wals-6.txt.bz2
>
>
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