perf script: Add stackcollapse.py script

Add stackcollapse.py script as an example of parsing call chains, and also of using optparse to access command line options. The flame graph tools include a set of scripts that parse output from various tools (including "perf script"), remove the offsets in the function and collapse each stack to a single line. The website also says "perf report could have a report style [...] that output folded stacks directly, obviating the need for stackcollapse-perf.pl", so here it is. This script is a Python rewrite of stackcollapse-perf.pl, using the perf scripting interface to access the perf data directly from Python.

Paolo Bonzini committed 10 years ago

Commit 6745d8e1 parent 7da36e93 files · +138 −0Browse files

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tools/perf/scripts/python/bin/stackcollapse-report+3−0

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	1	#!/bin/sh
	2	# description: produce callgraphs in short form for scripting use
	3	perf script -s "$PERF_EXEC_PATH"/scripts/python/stackcollapse.py -- "$@"