Hello Riza Suminto, Joe McDonnell, Impala Public Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/17834
to look at the new patch set (#3).
Change subject: IMPALA-10904: Add some perf tools to the repository
......................................................................
IMPALA-10904: Add some perf tools to the repository
This patch adds two perf tools to the repository. Both can be used to
generate flame graphs (https://www.brendangregg.com/flamegraphs.html).
perf-record.sh:
It samples the CPU stack traces for the entire system, or for a
specific PID until the user hits Ctrl+C. It can be useful if the
developer wants to take a look at what Impala is doing.
The resulting flame graph is written to an SVG file.
perf-query.sh:
It takes a query string as a parameter and passes it to the impala
shell to execute. While the query is executing the script samples
the CPU stack traces for the entire system. The resulting flame
graph is written to an SVG file.
E.g.:
perf-query.sh "select count(*) from tpch.lineitem group by l_returnflag"
Change-Id: Ib3da696b939204d23c5285dcf1bf6ee3a3738415
---
A bin/perf_tools/perf-query.sh
A bin/perf_tools/perf-record.sh
2 files changed, 171 insertions(+), 0 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/34/17834/3
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ib3da696b939204d23c5285dcf1bf6ee3a3738415
Gerrit-Change-Number: 17834
Gerrit-PatchSet: 3
Gerrit-Owner: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Joe McDonnell <joemcdonn...@cloudera.com>
Gerrit-Reviewer: Riza Suminto <riza.sumi...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
