Github user sitalkedia commented on the issue:
https://github.com/apache/spark/pull/15064
@gatorsmile - We do have Linux Perf/flamegraph support for gathering CPU
stats for our Spark jobs. On a per job basis, we run Perf/Jstack periodically
and aggregate the result which is displayed as a flamegraph. Please read
http://www.brendangregg.com/blog/2014-06-12/java-flame-graphs.html to know more
about linux Perf and flamegraph integration. This gives us a aggregated view of
time spent on a particular function across executors running on hundreds of
nodes. This enables us to find hot spots in the code which is super critical
for perf improvements.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
