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https://issues.apache.org/jira/browse/CASSANDRA-5530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13646588#comment-13646588
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Jonathan Ellis commented on CASSANDRA-5530:
-------------------------------------------
2.0 is just that awesome. :)
> Switch from THSHAServer to TThreadedSelectorServer
> --------------------------------------------------
>
> Key: CASSANDRA-5530
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5530
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 2.0
>
> Attachments: 5530.txt
>
>
> TThreadedSelectorServer is new in Thrift 0.9. It builds on HSHA by allowing
> for a set of threads for IO and a set work request processing...
> I've attached the performance numbers below. It's a lot closer to
> TThreadedServer.
> ThreadedServer (Default)
> {code}
> Write Averages from the middle 80% of values:
> interval_op_rate : 14811
> interval_key_rate : 14811
> latency median : 1.7
> latency 95th percentile : 5.3
> latency 99.9th percentile : 142.6
> Total operation time : 00:01:16
> END
> Read Averages from the middle 80% of values:
> interval_op_rate : 16898
> interval_key_rate : 16898
> latency median : 2.2
> latency 95th percentile : 8.5
> latency 99.9th percentile : 165.7
> Total operation time : 00:01:05
> END
> {code}
> HSHA (CURRENT)
> {code}
> Write Averages from the middle 80% of values:
> interval_op_rate : 8939
> interval_key_rate : 8939
> latency median : 5.0
> latency 95th percentile : 10.1
> latency 99.9th percentile : 105.4
> Total operation time : 00:01:56
> END
> Read Averages from the middle 80% of values:
> interval_op_rate : 9608
> interval_key_rate : 9608
> latency median : 5.1
> latency 95th percentile : 7.7
> latency 99.9th percentile : 51.6
> Total operation time : 00:01:49
> END
> {code}
> TThreadedSelectorServer (NEW)
> {code}
> Write Averages from the middle 80% of values:
> interval_op_rate : 11640
> interval_key_rate : 11640
> latency median : 3.1
> latency 95th percentile : 10.6
> latency 99.9th percentile : 135.9
> Total operation time : 00:01:30
> END
> Read Averages from the middle 80% of values:
> interval_op_rate : 15247
> interval_key_rate : 15247
> latency median : 2.8
> latency 95th percentile : 7.1
> latency 99.9th percentile : 40.3
> Total operation time : 00:01:06
> END
> {code}
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