ramkrishna.s.vasudevan commented on HBASE-15536:

Do you have any latest reports on this? what do you think when running with 
AsyncWAL on a single node. I think now we need to see how well we are 
performing with AsyncWAL and with offheap write path. 
In my recent runs with PE tool and 10 cols per row with 50 threads I found 
AsyncWAL to be performing slower than the default WAL. (for the default 
Today I have another cluster where I can also do some profiling. But wanted to 
get your feedback.

> Make AsyncFSWAL as our default WAL
> ----------------------------------
>                 Key: HBASE-15536
>                 URL: https://issues.apache.org/jira/browse/HBASE-15536
>             Project: HBase
>          Issue Type: Sub-task
>          Components: wal
>    Affects Versions: 2.0.0
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Critical
>             Fix For: 2.0.0
>         Attachments: HBASE-15536-v1.patch, HBASE-15536-v2.patch, 
> HBASE-15536-v3.patch, HBASE-15536-v4.patch, HBASE-15536-v5.patch, 
> HBASE-15536.patch
> As it should be predicated on passing basic cluster ITBLL

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