Michael created CASSANDRA-15127:
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Summary: Add compression performance metrics
Key: CASSANDRA-15127
URL: https://issues.apache.org/jira/browse/CASSANDRA-15127
Project: Cassandra
Issue Type: Task
Reporter: Michael
When doing some bulk load into my cluster I notice almost 100% CPU usage.
As I am using DeflateCompressor, I assume that the data
compression/decompression contributes a lot to overall CPU load. Unfortunately
cassandra doesn't seem to have any metrics explaining how much CPU time has
been required for that.
So I guess it would be useful to introduce cumulative times for compression and
decompression, breaking down by each supported compression algorithm.
Then by comparing how much does each specific value increase per minute, with
number of processed requests and their cumulative times, it would be easy to
conclude how costly is the compression.
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