Sam Lightfoot created CASSANDRA-19676:
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Summary: Stream processing for
StorageProxy::updateCoordinatorWriteLatencyTableMetric
Key: CASSANDRA-19676
URL: https://issues.apache.org/jira/browse/CASSANDRA-19676
Project: Cassandra
Issue Type: Improvement
Components: Legacy/Core
Reporter: Sam Lightfoot
Assignee: Sam Lightfoot
Attachments: image-2024-06-02-17-25-25-071.png
On profiling a write-heavy workload (90% writes) using easy-cass-stress, it
became very clear StorageProxy::updateCoordinatorWriteLatencyTableMetric was a
hot path that ~15% of the CPU cycles of
ModificationStatement::executeWithoutCondition were taken up by (see attached
async-profiler image).
We should convert this stream to a simple for loop, as has been discussed
recently on the mail list.
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