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https://issues.apache.org/jira/browse/CASSANDRA-5862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13733953#comment-13733953
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T Jake Luciani commented on CASSANDRA-5862:
-------------------------------------------
with current crc32
{code}
verages from the middle 80% of values:
interval_op_rate : 14556
interval_key_rate : 14556
latency median : 2.7
latency 95th percentile : 4.7
latency 99.9th percentile : 37.0
Total operation time : 00:01:15
END
{code}
with adler32
{code}
Averages from the middle 80% of values:
interval_op_rate : 17985
interval_key_rate : 17985
latency median : 2.0
latency 95th percentile : 3.9
latency 99.9th percentile : 73.7
Total operation time : 00:01:02
END
{code}
> Switch to adler checksum for sstables
> -------------------------------------
>
> Key: CASSANDRA-5862
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5862
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: T Jake Luciani
> Fix For: 2.0.1
>
> Attachments: 5862.txt
>
>
> Adler is significantly faster than CRC32:
> http://java-performance.info/java-crc32-and-adler32/
> (Adler is weaker for short inputs, so we should leave the commitlog alone, as
> it checksums each mutation individually.)
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