HATARI_PROFILE(1) Hatari utilities HATARI_PROFILE(1)NAMEhatari_profile - Post-processor for Hatari profiler data
SYNOPSIS
hatari_profile.py [options] <datafiles>
DESCRIPTION
A Python script to post-process data produced by Hatari profiler "save"
commands, both for CPU and DSP:
profile save <filename>
dspprofile save <filename>
It can provide function level (CPU and DSP) processor usage information
for anything Hatari profiler records: instruction counts, processor
cycles and depending on processor, also instruction cache misses or
cycle differences.
This information can be provided as ASCII list of heaviest functions,
as callgraphs (if profile data includes caller information), or as
callgrind format export which can be viewed in (Linux) Kcachegrind GUI.
OPTIONS
Invoking hatari_profile without arguments lists all of its options.
USAGE EXAMPLES
Regardless of whether profile data contains some symbol information,
you should always give script all relevant debug symbols, otherwise
costs might not get correctly assigned to symbols preceeding those
costs.
This post-processes profile data for EmuTOS (ROM), with symbol file
having fixed/absolute addresses (-a), shows statistics (-s) and top
lists (-t), but limits list output to anything taking over 2% (-l 2)
and includes "propagated" subroutine call costs (-p):
-------------------------------------------------------------
$ hatari_profile.py -a etos512k.sym -st -l 2 -p etos-boot.txt
Hatari profile data processor
Parsing absolute symbol address information from etos512k.sym...
1538 lines with 1236 code symbols/addresses parsed, 0 unknown.
Parsing profile information from etos-boot.txt...
16993 lines processed with 465 functions.
CPU profile information from 'etos-boot.txt':
- Hatari v1.6.2+ (Apr 15 2013), OldUAE CPU core
Time spent in profile = 4.60740s.
Calls:
- max = 1800, in ___mulsi3 at 0xe60790, on line 16477
- 16659 in total
Executed instructions:
- max = 315254, in _timeout_gpip+38 at 0xe06fd8, on line 3237
- 3074165 in total
Used cycles:
- max = 6311628, in _timeout_gpip+38 at 0xe06fd8, on line 3237
- 36957124 in total
Calls:
10.80% 10.88% 1800 ___mulsi3
8.04% 8.16% 1339 _memcpy
5.20% 0.26% 866 _int_timerc
4.61% 768 _call_user_wheel
3.86% 3.86% 643 _min
3.76% 3.82% 627 _sti
3.76% 3.76% 627 _cli
3.30% 3.30% 550 _bcostat4
Executed instructions:
61.58% 61.79% 1892940 _timeout_gpip
8.62% 9.33% 264918 _draw_rect
4.96% 4.98% 152582 _run_calibration
4.06% 4.09% 124944 _blank_out
3.22% 99134 meminit
Used cycles:
61.58% 62.01% 22759756 _timeout_gpip
5.69% 6.85% 2104464 _draw_rect
4.29% 1586108 meminit
4.19% 4.22% 1547768 _run_calibration
3.04% 3.07% 1122816 _blank_out
2.88% 2.98% 1065272 _stop_until_interrupt
-------------------------------------------------------------
This creates GraphViz callgraph files (-g) and Kcachegrind callgrind
data file (-k) from Bad Mood (Doom BSP viewer) profile. Symbols for
the program are TEXT section relative (-r), calls to some interrupt
routines in the program are ignored as they aren't real calls, call‐
graph nodes using over 2% are highlighted, and there are some options
to limit and simplify the graph:
-------------------------------------------------------------
$ hatari_profile.py -r bmsym.sym \
-k -g -p --emph-limit 2.0 --limit 0.5 \
--ignore-to framecounter,new_vbi,stabilizer_b \
--compact --no-leafs --no-intermediate \
badmood-profile.txt
Hatari profile data processor
Parsing TEXT relative symbol address information from bmsym.sym...
1023 lines with 392 code symbols/addresses parsed, 0 unknown.
Parsing profile information from badmood-profile.txt...
1420 lines processed with 63 functions.
Ignoring 29 switches to framecounter
Ignoring 9 switches to stabilizer_b
Ignoring 8 switches to new_vbi
Of all 1562 switches, ignored 56 for type(s) ['r', 'u', 'x'].
Generating callgrind file 'badmood-profile.cg'...
Generating 'badmood-profile-0.dot' DOT callgraph file...
Generating 'badmood-profile-1.dot' DOT callgraph file...
Generating 'badmood-profile-2.dot' DOT callgraph file...
Generating 'badmood-profile-3.dot' DOT callgraph file...
CPU profile information from 'badmood-profile.txt':
- Hatari v1.6.2+ (Apr 10 2013), WinUAE CPU core
-------------------------------------------------------------
SEE ALSOhatari(1), gst2ascii(1), hconsole(1)hatariui(1)AUTHOR
Written by Eero Tamminen <oak at helsinkinet fi>.
LICENSE
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
NO WARRANTY
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MER‐
CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.
Hatari 2013-04-15 HATARI_PROFILE(1)
