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From "Andy Tolbert (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-10712) Performance dramatically impacted by using client SSL
Date Mon, 16 Nov 2015 17:43:10 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-10712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andy Tolbert updated CASSANDRA-10712:
-------------------------------------
    Description: 
Throughput latency & throughput achieved via cassandra-stress is dramatically impacted
when using SSL (about 5-6x).

!bench-graph.png!

I haven't done much analysis of this yet, but one observation is that I do notice a dramatic
increase in context switches while running with SSL on the server side.  In the charts below,
the left-most data in a chart represents running without SSL, and the right-most data represents
running with SSL.  You'll observe that on the C* node that while the CPU utilization is down
when running stress with SSL, the context switches are higher.

!cpu_metrics.png!

Attached is [^ssl-bench.tgz] that includes output for each run, the parameters used and an
html file that is the output of running stress with [CASSANDRA-7918].

If you need some ready made keystore / truststore files to work with, some can be found [here|https://github.com/datastax/java-driver/tree/2.1/driver-core/src/test/resources].

  was:
Throughput latency & throughput achieved via cassandra-stress is dramatically impacted
when using SSL (about 5-6x).

!bench-graph.png|thumbnail!

I haven't done much analysis of this yet, but one observation is that I do notice a dramatic
increase in context switches while running with SSL on the server side.  In the charts below,
the left-most data in a chart represents running without SSL, and the right-most data represents
running with SSL.  You'll observe that on the C* node that while the CPU utilization is down
when running stress with SSL, the context switches are higher.

!cpu_metrics.png|thumbnail!

Attached is [^ssl-bench.tgz] that includes output for each run, the parameters used and an
html file that is the output of running stress with [CASSANDRA-7918].

If you need some ready made keystore / truststore files to work with, some can be found [here|https://github.com/datastax/java-driver/tree/2.1/driver-core/src/test/resources].


> Performance dramatically impacted by using client SSL
> -----------------------------------------------------
>
>                 Key: CASSANDRA-10712
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10712
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Andy Tolbert
>         Attachments: bench-graph.png, cpu_metrics.png, ssl-bench.tgz
>
>
> Throughput latency & throughput achieved via cassandra-stress is dramatically impacted
when using SSL (about 5-6x).
> !bench-graph.png!
> I haven't done much analysis of this yet, but one observation is that I do notice a dramatic
increase in context switches while running with SSL on the server side.  In the charts below,
the left-most data in a chart represents running without SSL, and the right-most data represents
running with SSL.  You'll observe that on the C* node that while the CPU utilization is down
when running stress with SSL, the context switches are higher.
> !cpu_metrics.png!
> Attached is [^ssl-bench.tgz] that includes output for each run, the parameters used and
an html file that is the output of running stress with [CASSANDRA-7918].
> If you need some ready made keystore / truststore files to work with, some can be found
[here|https://github.com/datastax/java-driver/tree/2.1/driver-core/src/test/resources].



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