Bharath Vissapragada 4dd70b67b8 Add a handy tool to collapse threads in pstacks ...

This commit imports a very useful tool that summarizes/collapses
threads from gdb pstacks. I found it very useful in analyzing
pstacks with large number of threads, specially in Impala's context.

Credit to the original author at https://poormansprofiler.org/
(Slightly modified for better input handling).

Example Usages:
---------------
summarize-pstacks foo.pstack
summarize-pstacks foo_*.pstack
cat foo.pstack | summarize-pstacks
cat foo_*.pstack | summarize-pstacks

Change-Id: I0d00f7cea5fe01ff8b2511f4e04db5d5ad1c82f4
Reviewed-on: http://gerrit.cloudera.org:8080/11926
Reviewed-by: Bharath Vissapragada <bharathv@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>

2018-11-30 05:05:44 +00:00

1.9 KiB

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