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impala/bin/summarize-pstacks
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

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#!/bin/bash
#
# Copyright (c) 2018, Mark Callaghan and Domas Mituzas
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * The names of its contributors may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Credit: https://github.com/mdcallag/mytools/blob/master/scripts/pmp.sh
# Example usage:
#
# summarize-pstacks foo.pstack
# summarize-pstacks foo_*.pstack
# cat foo.pstack | summarize-pstacks
# cat foo_*.pstack | summarize-pstacks
awk '
BEGIN { s = ""; }
/^Thread/ { print s; s = ""; }
/^\#/ { if (s != "" ) { s = s "," $4} else { s = $4 } }
END { print s }' "${1:-/dev/stdin}" | sort | uniq -c | sort -r -n -k 1,1