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becki:linux:gnu_gprof
Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
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becki:linux:gnu_gprof [2018-04-06 05:54] becki |
becki:linux:gnu_gprof [2018-04-10 09:49] (aktuell) becki [Generating Profile Data] |
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| Zeile 22: | Zeile 22: | ||
| According to GLAP p.619 the profile data file {{{gmon.out}}} is only written upon normal exit of the application, not eg on exit with SIGKILL. See also [[terminal_special_characters]] | According to GLAP p.619 the profile data file {{{gmon.out}}} is only written upon normal exit of the application, not eg on exit with SIGKILL. See also [[terminal_special_characters]] | ||
| - | In order to exit gracefully for a programm with an infintite main loop, eg a signal handler for TERM could be installed. FIXME Link! | + | In order to exit gracefully for a programm with an infintite main loop, eg a signal handler for TERM could be installed. See [[/becki/my/linux/linux_signals]] |
| == Analysing Profile Data | == Analysing Profile Data | ||
| Zeile 28: | Zeile 28: | ||
| gprof foo gmon.out | gprof foo gmon.out | ||
| - | Writes ACII to stdout | + | Writes ACII to stdout for review. |
| + | It shows that different gmon.out produces from the same binary produce different results. GLAP p.628 proposes to produce multiple gmon.out's, build the average and review this: | ||
| + | |||
| + | gprof --sum foo gmon.out.? | ||
| + | gprof foo gmon.sum > gmon.sum.txt | ||
| + | |||
becki/linux/gnu_gprof.1522994063.txt.gz · Zuletzt geändert: 2018-04-06 05:54 von becki
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