http://bugs.winehq.org/show_bug.cgi?id=17200
Summary: A demoscene sound only demo consumes a way too many CPU cycles Product: Wine Version: 1.1.14 Platform: PC URL: http://gargaj.umlaut.hu/prod.php?id=116 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: directx-dmusic AssignedTo: wine-bugs@winehq.org ReportedBy: t.artem@mailcity.com
Under Windows XP this demo consumes around 0-1% of CPU, under Wine it consumes on average 75% of 2600MHz AMD64 CPU.
To exclude console output latency I run it this way:
./invisible.exe &> /dev/null
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #1 from Artem S. Tashkinov t.artem@mailcity.com 2009-01-30 13:33:14 --- Created an attachment (id=19102) --> (http://bugs.winehq.org/attachment.cgi?id=19102) Application
http://bugs.winehq.org/show_bug.cgi?id=17200
Austin English austinenglish@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Keywords| |download
http://bugs.winehq.org/show_bug.cgi?id=17200
Vitaliy Margolen vitaliy@kievinfo.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |trivial
--- Comment #2 from Vitaliy Margolen vitaliy@kievinfo.com 2009-01-31 11:34:33 --- Profiling would help
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #3 from Artem S. Tashkinov t.artem@mailcity.com 2009-11-23 02:59:35 --- What's the easiest way to profile applications running under wine? Maybe some internal wine tool can do that?
http://bugs.winehq.org/show_bug.cgi?id=17200
Artem S. Tashkinov t.artem@mailcity.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|A demoscene sound only demo |A demoscene sound only demo |consumes a way too many CPU |(invisible.exe) consumes a |cycles |way too many CPU cycles
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #4 from Jeff Zaroyko jeffz@jeffz.name 2009-12-08 04:53:20 --- (In reply to comment #3)
What's the easiest way to profile applications running under wine? Maybe some internal wine tool can do that?
oprofile, install the oprofili-gui, start the application, start profiling, take 15 seconds of data, stop profiling then run some of the example oprofile reports listed on the oprofile homepage, you can attach the results here as a file.
http://bugs.winehq.org/show_bug.cgi?id=17200
Jeff Zaroyko jeffz@jeffz.name changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1
--- Comment #5 from Jeff Zaroyko jeffz@jeffz.name 2010-06-15 22:14:38 --- Confirming with Wine 1.2-rc3. On my Intel Core 2 Quad @ 2.4GHz what I can see is maybe 10 seconds or so into the music CPU usage starts to hover around 20-24%. Comparing to Windows Vista on a Core 2 Duo @ 2.53Ghz it hardly goes above 10-11%.
Looking at the results of oprofile I suspect it's our naive implementation of _CIcos. The application calls it a lot, we call MSVCRT_cos which calls libm cos. I tried replacing this behavior with inline assembly using fcos, but it was hardly improved, maybe a better optimised version would suit? If so _CIsin could probably be improved in a similar manner.
samples % image name symbol name 25055 45.4150 anon (tgid:8086 range:0x434000-0x4d6000) (no symbols) 15759 28.5650 libm-2.7.so cos 3348 6.0686 libm-2.7.so sin 2101 3.8083 msvcrt.dll.so MSVCRT_cos 1802 3.2663 ntdll.dll.so NTDLL__ftol 1298 2.3528 msvcrt.dll.so _CIcos 921 1.6694 libc-2.7.so finite 902 1.6350 msvcrt.dll.so __i686.get_pc_thunk.bx 808 1.4646 msvcrt.dll.so MSVCRT_sin 777 1.4084 msvcrt.dll.so .plt 766 1.3885 libasound.so.2.0.0 (no symbols) 696 1.2616 msvcrt.dll.so _CIsin 169 0.3063 anon (tgid:8086 range:0x0-0x110000) (no symbols) 78 0.1414 libm-2.7.so __ieee754_pow 35 0.0634 vmlinux cache_estimate 35 0.0634 vmlinux may_open 34 0.0616 dsound.dll.so convert_16_to_16 27 0.0489 dsound.dll.so mix16
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #6 from Artem S. Tashkinov t.artem@mailcity.com 2010-06-16 05:28:59 --- Created an attachment (id=28881) --> (http://bugs.winehq.org/attachment.cgi?id=28881) ssemath library under zlib license
If cosf and sinf functions are to be blamed, then GCC option -ffast-math should have helped but here in my case I see zero difference between msvcrt library compiled with usual CFlags and -ffast-math option.
Probably Wine developers could have used SSE2 implementation of some functions (namely sin, cos, log and exp) which is available here http://gruntthepeon.free.fr/ssemath/ under zlib license.
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #7 from Jeff Zaroyko jeffz@jeffz.name 2010-06-16 06:07:46 --- (In reply to comment #6)
Created an attachment (id=28881)
--> (http://bugs.winehq.org/attachment.cgi?id=28881) [details]
ssemath library under zlib license
If cosf and sinf functions are to be blamed, then GCC option -ffast-math should have helped but here in my case I see zero difference between msvcrt library compiled with usual CFlags and -ffast-math option.
Not cosf or sinf, cos and sin, different precision... Yes, -ffast-math is similar to my earlier mentioned test of using inline asm which I observed no noticable difference from the output of top (not an exact tool for measuring, but good enough to see the difference between 8-12 and 20-25). We don't know the implementation that MS uses in _CIcos so you can't really say that such and such compiler flag should have helped. I can only point to the oprofile data and by comparison a no-op of the _CIcos function it appears CPU usage drops below that of on Windows.
I'm no expert on transcendental functions and the approximation of them, but maybe some tests are needed to decide the nature of the real implementation, I don't know.
http://bugs.winehq.org/show_bug.cgi?id=17200
Artem S. Tashkinov t.artem@mailcity.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Component|directx-dmusic |msvcrt
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #8 from butraxz@gmail.com 2013-04-23 15:31:58 CDT --- No update for 900 days. Is this still an issue in 1.5.28 or higher or should this be closed as abandoned ?
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #9 from Artem S. Tashkinov t.artem@mailcity.com 2013-04-23 22:50:18 CDT --- (In reply to comment #8)
No update for 900 days. Is this still an issue in 1.5.28 or higher or should this be closed as abandoned ?
Yep, it consumes from 34 to 61% of CPU vs. up to 1% of CPU.
http://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #10 from Artem S. Tashkinov t.artem@mailcity.com 2013-04-23 22:50:52 CDT --- That is Linux vs. Windows.
http://bugs.winehq.org/show_bug.cgi?id=17200
Artem S. Tashkinov t.artem@mailcity.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|A demoscene sound only demo |A demoscene sound only demo |(invisible.exe) consumes a |(invisible.exe) consumes |way too many CPU cycles |way too many CPU cycles
https://bugs.winehq.org/show_bug.cgi?id=17200
Anastasius Focht focht@gmx.net changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |focht@gmx.net
--- Comment #11 from Anastasius Focht focht@gmx.net --- Hello folks,
confirming, still present.
Download: http://gargaj.umlaut.hu/music/gargaj-invisible.zip
Jeff is on the right track regarding msvcrt math functions.
If you pin the process to one core on multi-core system ('taskset -c 0'), it becomes more immanent.
With builtin msvcrt it's saturating one core with 100% vs. 48-61% with native msvcrt ('winetricks -q vcrun6' and 'WINEDLLOVERRIDES=msvcrt=n taskset -c 0 wine ./invisible.exe').
For the other parts, that is user32 (keystate polling), ntdll (native sync objects, console output), Windows will always beat Wine/Linux here due to the way Wine is implemented (fast syscalls vs. multiple roundtrips with userspace processes/context switches) -> comparing apples and oranges.
$ sha1sum gargaj-invisible.zip 463ade4d0b1c4c6f2e32668ac919e0dc105f5174 gargaj-invisible.zip
$ du -sh gargaj-invisible.zip 20K gargaj-invisible.zip
$ wine --version wine-1.7.25-93-g12aa347
Regards
https://bugs.winehq.org/show_bug.cgi?id=17200
Anastasius Focht focht@gmx.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|A demoscene sound only demo |Demoscene sound-only demo |(invisible.exe) consumes |'invisible' by Gargaj |way too many CPU cycles |consumes way too many CPU | |cycles (performance of | |builtin msvcrt sin/cos | |implementations) URL|http://gargaj.umlaut.hu/pro |https://web.archive.org/web |d.php?id=116 |/20140927093702/http://garg | |aj.umlaut.hu/music/gargaj-i | |nvisible.zip
--- Comment #12 from Anastasius Focht focht@gmx.net --- Hello folks,
adding stable download via Internet Archive:
https://web.archive.org/web/20140927093702/http://gargaj.umlaut.hu/music/gar...
@Artem (comment #1)
Please don't attach binaries when downloads exist from the author's website (http://gargaj.umlaut.hu/). Although the demoscene folks are probably pretty relaxed/lenient about redistribution of their stuff it should be still avoided.
Fortunately we have the digital graveyard - the Internet Archive ;-)
===
Results with Wine 6.3:
Builtin msvcrt, pinned to one core:
--- snip --- $ taskset -c 0 wine ./invisible.exe &> /dev/null
$ pidstat -p 23984 10
11:29:05 AM %usr %system %guest %wait %CPU CPU Command 11:29:15 AM 58.60 1.50 0.00 0.60 60.10 0 invisible.exe 11:29:25 AM 64.30 1.30 0.00 0.60 65.60 0 invisible.exe 11:29:35 AM 66.70 1.10 0.00 0.50 67.80 0 invisible.exe 11:29:45 AM 51.40 1.70 0.00 0.60 53.10 0 invisible.exe 11:29:55 AM 56.80 1.30 0.00 0.60 58.10 0 invisible.exe 11:30:05 AM 63.30 1.30 0.00 0.70 64.60 0 invisible.exe 11:30:15 AM 69.10 1.10 0.00 0.50 70.20 0 invisible.exe 11:30:25 AM 66.90 1.10 0.00 0.50 68.00 0 invisible.exe 11:30:35 AM 70.90 1.40 0.00 0.40 72.30 0 invisible.exe 11:30:45 AM 76.10 1.10 0.00 0.50 77.20 0 invisible.exe 11:30:55 AM 74.20 1.10 0.00 0.40 75.30 0 invisible.exe 11:31:05 AM 69.90 1.30 0.00 0.40 71.20 0 invisible.exe 11:31:15 AM 58.10 1.60 0.00 0.70 59.70 0 invisible.exe 11:31:25 AM 50.20 1.60 0.00 0.60 51.80 0 invisible.exe 11:31:35 AM 73.90 1.20 0.00 0.40 75.10 0 invisible.exe 11:31:45 AM 74.60 1.10 0.00 0.50 75.70 0 invisible.exe 11:31:55 AM 73.60 1.20 0.00 0.40 74.80 0 invisible.exe 11:32:05 AM 67.50 1.40 0.00 0.40 68.90 0 invisible.exe 11:32:15 AM 48.80 1.50 0.00 0.90 50.30 0 invisible.exe ... --- snip ---
Native msvcrt, pinned one core:
--- snip --- $ WINEDLLOVERRIDES=msvcrt=n taskset -c 0 wine ./invisible.exe &> /dev/null
$ pidstat -p 22882 10
11:23:08 AM %usr %system %guest %wait %CPU CPU Command 11:23:18 AM 30.70 1.90 0.00 0.30 32.60 0 invisible.exe 11:23:28 AM 35.40 1.70 0.00 0.40 37.10 0 invisible.exe 11:23:38 AM 34.40 2.00 0.00 0.30 36.40 0 invisible.exe 11:23:48 AM 27.30 1.70 0.00 0.20 29.00 0 invisible.exe 11:23:58 AM 25.70 1.80 0.00 0.30 27.50 0 invisible.exe 11:24:08 AM 31.80 1.60 0.00 0.40 33.40 0 invisible.exe 11:24:18 AM 37.10 1.70 0.00 0.20 38.80 0 invisible.exe 11:24:28 AM 38.80 1.80 0.00 0.30 40.60 0 invisible.exe 11:24:38 AM 39.50 1.50 0.00 0.30 41.00 0 invisible.exe 11:24:48 AM 47.60 1.60 0.00 0.20 49.20 0 invisible.exe 11:24:58 AM 49.70 1.60 0.00 0.20 51.30 0 invisible.exe 11:25:08 AM 48.70 1.60 0.00 0.20 50.30 0 invisible.exe 11:25:18 AM 46.20 1.60 0.00 0.20 47.80 0 invisible.exe 11:25:28 AM 29.40 1.80 0.00 0.60 31.20 0 invisible.exe 11:25:38 AM 48.20 1.60 0.00 0.30 49.80 0 invisible.exe 11:25:48 AM 51.40 1.60 0.00 0.20 53.00 0 invisible.exe 11:25:58 AM 46.40 1.50 0.00 0.40 47.90 0 invisible.exe 11:26:08 AM 44.70 1.70 0.00 0.20 46.40 0 invisible.exe 11:26:18 AM 40.30 2.10 0.00 0.30 42.40 0 invisible.exe 11:26:28 AM 28.30 2.10 0.00 0.50 30.40 0 invisible.exe ... --- snip ---
Regards
https://bugs.winehq.org/show_bug.cgi?id=17200
--- Comment #13 from Artem S. Tashkinov aros@gmx.com --- (In reply to Anastasius Focht from comment #12)
@Artem (comment #1)
Please don't attach binaries when downloads exist from the author's website.
OK! I've just used Wine's bugzilla as a sort of Internet archive but you're right.
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