stackcollapse-xdebug.php - Man Page

manual page for stackcollapse-xdebug.php 1.0

Description

stackcollapse-php.php  collapse php function traces into single lines.

Parses php samples generated by xdebug with xdebug.trace_format = 1 and outputs stacks as single lines, with methods separated by semicolons, and then a space and an occurrence count. For use with flamegraph.pl. See https://github.com/brendangregg/FlameGraph.

USAGE: ./stackcollapse-php.php [OPTIONS] infile > outfile

-h --help

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-t

Weight stack counts by duration using the time index in the trace (default)

-c

Invocation counts only. Simply count stacks in the trace and sum duplicates, don't weight by duration.

Example input: For more info on xdebug and generating traces see https://xdebug.org/docs/execution_trace.

Version: 2.0.0RC4-dev TRACE START [2007-05-06 18:29:01] 1    0    0    0.010870    114112    {main}    1    ../trace.php    0 2    1    0    0.032009    114272    str_split    0    ../trace.php    8 2    1    1    0.032073    116632 2    2    0    0.033505    117424    ret_ord    1    ../trace.php    10 3    3    0    0.033531    117584    ord    0    ../trace.php    5 3    3    1    0.033551    117584 ... TRACE END   [2007-05-06 18:29:01]

Example output:

- c {main};str_split 1 {main};ret_ord;ord 6

-t {main} 23381 {main};str_split 64 {main};ret_ord 215 {main};ret_ord;ord 106

Info

January 2023 stackcollapse-xdebug.php 1.0