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https://github.com/Wiimpathy/HatariWii.git
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154 lines
5.3 KiB
Groff
154 lines
5.3 KiB
Groff
.\" Hey, EMACS: -*- nroff -*-
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.\" First parameter, NAME, should be all caps
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.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
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.\" other parameters are allowed: see man(7), man(1)
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.TH "HATARI_PROFILE" "1" "2013-04-15" "Hatari" "Hatari utilities"
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.SH "NAME"
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hatari_profile \- Post-processor for Hatari profiler data
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.SH "SYNOPSIS"
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.B hatari_profile.py
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.IR [options]
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.IR <datafiles>
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.SH "DESCRIPTION"
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A Python script to post-process data produced by Hatari profiler
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"save" commands, both for CPU and DSP:
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.nf
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profile save <filename>
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dspprofile save <filename>
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.fi
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.PP
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It can provide function level (CPU and DSP) processor usage
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information for anything Hatari profiler records: instruction counts,
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processor cycles and depending on processor, also instruction cache
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misses or cycle differences.
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.PP
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This information can be provided as ASCII list of heaviest functions,
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as callgraphs (if profile data includes caller information), or as
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callgrind format export which can be viewed in (Linux) Kcachegrind
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GUI.
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.SH "OPTIONS"
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Invoking
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.I hatari_profile
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without arguments lists all of its options.
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.SH "USAGE EXAMPLES"
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Regardless of whether profile data contains some symbol information,
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you should always give script all relevant debug symbols, otherwise
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costs might not get correctly assigned to symbols preceeding those
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costs.
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.PP
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This post-processes profile data for EmuTOS (ROM), with symbol file
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having fixed/absolute addresses (-a), shows statistics (-s) and top
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lists (-t), but limits list output to anything taking over 2% (-l 2)
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and includes "propagated" subroutine call costs (-p):
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.nf
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-------------------------------------------------------------
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$ hatari_profile.py -a etos512k.sym -st -l 2 -p etos-boot.txt
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Hatari profile data processor
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Parsing absolute symbol address information from etos512k.sym...
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1538 lines with 1236 code symbols/addresses parsed, 0 unknown.
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Parsing profile information from etos-boot.txt...
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16993 lines processed with 465 functions.
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CPU profile information from 'etos-boot.txt':
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- Hatari v1.6.2+ (Apr 15 2013), OldUAE CPU core
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Time spent in profile = 4.60740s.
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Calls:
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- max = 1800, in ___mulsi3 at 0xe60790, on line 16477
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- 16659 in total
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Executed instructions:
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- max = 315254, in _timeout_gpip+38 at 0xe06fd8, on line 3237
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- 3074165 in total
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Used cycles:
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- max = 6311628, in _timeout_gpip+38 at 0xe06fd8, on line 3237
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- 36957124 in total
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Calls:
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10.80% 10.88% 1800 ___mulsi3
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8.04% 8.16% 1339 _memcpy
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5.20% 0.26% 866 _int_timerc
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4.61% 768 _call_user_wheel
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3.86% 3.86% 643 _min
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3.76% 3.82% 627 _sti
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3.76% 3.76% 627 _cli
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3.30% 3.30% 550 _bcostat4
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Executed instructions:
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61.58% 61.79% 1892940 _timeout_gpip
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8.62% 9.33% 264918 _draw_rect
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4.96% 4.98% 152582 _run_calibration
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4.06% 4.09% 124944 _blank_out
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3.22% 99134 meminit
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Used cycles:
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61.58% 62.01% 22759756 _timeout_gpip
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5.69% 6.85% 2104464 _draw_rect
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4.29% 1586108 meminit
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4.19% 4.22% 1547768 _run_calibration
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3.04% 3.07% 1122816 _blank_out
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2.88% 2.98% 1065272 _stop_until_interrupt
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-------------------------------------------------------------
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.fi
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.PP
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This creates GraphViz callgraph files (-g) and Kcachegrind callgrind
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data file (-k) from Bad Mood (Doom BSP viewer) profile. Symbols for
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the program are TEXT section relative (-r), calls to some interrupt
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routines in the program are ignored as they aren't real calls,
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callgraph nodes using over 2% are highlighted, and there are some
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options to limit and simplify the graph:
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.nf
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-------------------------------------------------------------
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$ hatari_profile.py -r bmsym.sym \\
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-k -g -p --emph-limit 2.0 --limit 0.5 \\
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--ignore-to framecounter,new_vbi,stabilizer_b \\
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--compact --no-leafs --no-intermediate \\
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badmood-profile.txt
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Hatari profile data processor
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Parsing TEXT relative symbol address information from bmsym.sym...
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1023 lines with 392 code symbols/addresses parsed, 0 unknown.
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Parsing profile information from badmood-profile.txt...
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1420 lines processed with 63 functions.
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Ignoring 29 switches to framecounter
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Ignoring 9 switches to stabilizer_b
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Ignoring 8 switches to new_vbi
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Of all 1562 switches, ignored 56 for type(s) ['r', 'u', 'x'].
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Generating callgrind file 'badmood-profile.cg'...
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Generating 'badmood-profile-0.dot' DOT callgraph file...
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Generating 'badmood-profile-1.dot' DOT callgraph file...
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Generating 'badmood-profile-2.dot' DOT callgraph file...
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Generating 'badmood-profile-3.dot' DOT callgraph file...
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CPU profile information from 'badmood-profile.txt':
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- Hatari v1.6.2+ (Apr 10 2013), WinUAE CPU core
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-------------------------------------------------------------
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.fi
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.SH "SEE ALSO"
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.IR hatari (1),
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.IR gst2ascii (1),
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.IR hconsole (1)
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.IR hatariui (1)
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.SH "AUTHOR"
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Written by Eero Tamminen <oak at helsinkinet fi>.
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.SH "LICENSE"
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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.SH "NO WARRANTY"
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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