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https://issues.apache.org/jira/browse/HBASE-20188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16420876#comment-16420876
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stack commented on HBASE-20188:
-------------------------------
Here is updated command-line for workloada to avoid mis-reads
{code}
++ date
+ echo 'Fri Mar 30 12:07:55 PDT 2018 50/50 workload a'
Fri Mar 30 12:07:55 PDT 2018 50/50 workload a
+ /home/stack/ycsb/bin/ycsb run hbase12 -P /home/stack/ycsb/workloads/workloada
-p table=ycsb -threads 48 -cp /home/stack/conf_hbase -p columnfamily=family -s
-p maxexecutiontime=1200 '-jvm-args=-Xmx8192m
-Djava.security.egd=file:/dev/./urandom ' -p recordcount=25000000 -p
operationcount=25000000 -p
exportfile=logs/ycsb-workloada-measurements-ve0524-20180330T18:38:49Z.json -p
exporter=com.yahoo.ycsb.measurements.exporter.JSONArrayMeasurementsExporter
{code}
> [TESTING] Performance
> ---------------------
>
> Key: HBASE-20188
> URL: https://issues.apache.org/jira/browse/HBASE-20188
> Project: HBase
> Issue Type: Umbrella
> Components: Performance
> Reporter: stack
> Assignee: stack
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments: ITBLL2.5B_1.2.7vs2.0.0_cpu.png,
> ITBLL2.5B_1.2.7vs2.0.0_gctime.png, ITBLL2.5B_1.2.7vs2.0.0_iops.png,
> ITBLL2.5B_1.2.7vs2.0.0_load.png, ITBLL2.5B_1.2.7vs2.0.0_memheap.png,
> ITBLL2.5B_1.2.7vs2.0.0_memstore.png, ITBLL2.5B_1.2.7vs2.0.0_ops.png,
> ITBLL2.5B_1.2.7vs2.0.0_ops_NOT_summing_regions.png, YCSB_CPU.png,
> YCSB_GC_TIME.png, YCSB_IN_MEMORY_COMPACTION=NONE.ops.png, YCSB_MEMSTORE.png,
> YCSB_OPs.png, YCSB_in-memory-compaction=NONE.ops.png, YCSB_load.png,
> flamegraph-1072.1.svg, flamegraph-1072.2.svg, tree.txt
>
>
> How does 2.0.0 compare to old versions? Is it faster, slower? There is rumor
> that it is much slower, that the problem is the asyncwal writing. Does
> in-memory compaction slow us down or speed us up? What happens when you
> enable offheaping?
> Keep notes here in this umbrella issue. Need to be able to say something
> about perf when 2.0.0 ships.
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