CeLog + Monte Carlo = Perfalyzer

Troubleshooting guide - part 2

HoppeRx - the cure for your ailing device — Tue, 21 Apr 2009 17:09:35 GMT

Below is the second half of a well executed document from guestRx: Bulent Elmaci. Bulent has worked with

re: CeLog + Monte Carlo = Perfalyzer

FrankW — Wed, 01 Feb 2006 21:21:15 GMT

Hi Sue,

I have posted my results in the in
"microsoft.public.windowsce.testtools"
under the topic
"re: CeLog + Monte Carlo = Perfalyzer"

Frank

re: CeLog + Monte Carlo = Perfalyzer

ce_base — Wed, 01 Feb 2006 20:04:30 GMT

If you get "no records in input database" then it means there are no profiling events in the CeLog log file. Possible sources of the problem:
- It's not a profiling image (IMGPROFILER=1), or there's some problem with the OAL profiling implementation. Try running the profiler in non-celog mode ("prof on" / "prof off" in the target control window). Does that work?
- The profiler didn't actually get started (Maybe some problem with how you're using pause/continue or passing 0-freq to continue?). If you look at the .clg file with readlog, search for "profile" in the output to see if there are Monte Carlo start/stop events. Does the profiler work if you remove the PROFILE_CELOG flag from your ProfileStart call?
- Data is being lost or is not getting flushed to the log file. If you look at the log file with kernel tracker or readlog does it look like the period of time you were profiling got into the log?

It is tough to do in depth debugging through a blog, and fills up the comments area. If you continue to have problems, let me suggest that you post your questions onto one of our newsgroups (like microsoft.public.windowsce.platbuilder) instead.

Hope that helps,

Sue

re: CeLog + Monte Carlo = Perfalyzer

FrankW — Wed, 01 Feb 2006 19:46:03 GMT

Hi Sue,

I have tried this also with CeLogFlush and written the buffer contents into a file. See registry entry:
[HKEY_LOCAL_MACHINE\System\CeLog]
"Transport"="LocalFile"
"FileName"="celog.clg"

Same result:
D:\WinCE420\release>perfalyzer.exe CeLog.clg
Loading CE database API from cedb400.dll
Loading symbols for celog.dll... 18 loaded.
Loading symbols for lan91c111.dll... 94 loaded.
Loading symbols for netui.dll... 706 loaded.
...
Failure looking up symbol 0x140126c8
Failure looking up symbol 0x1e011cac
Failure looking up symbol 0x1e011d78
Kernel Profiler start 0x000001f4 0x00000060
Kernel Profiler stop
NOTE -- If this log contains more than one profiler run, you should use
the "-splitlog" parameter to break it into a second log file.
**** ProcessEvent failed!
Generating overall module report...
No records in input database!
Count failure generating overall module report
Done: See Perf\overall.htm for results.
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it

If I load the log file into the kernel tracker it looks good. All symbols are resolved.

To start the logging I use these API functions:
ProfileStart( 500, PROFILE_CELOG | PROFILE_STARTPAUSED );
ProfileStart( 0, PROFILE_CELOG | PROFILE_CONTINUE);
ProfileStop();

Frank

re: CeLog + Monte Carlo = Perfalyzer

ce_base — Wed, 01 Feb 2006 19:14:23 GMT

Hi Frank, d'ohh, I forgot to mention that you can't use Remote Kernel Tracker for this at all. Kernel Tracker discards CeLog events that it doesn't know about, and it doesn't know about the profiler events. You'll have to use CeLogFlush.exe to capture the data to a log file. Sorry about that!

Sue

re: CeLog + Monte Carlo = Perfalyzer

Frank W — Wed, 01 Feb 2006 18:48:39 GMT

Hi Sue,

thanks for your very helpful articles.

I have tried to analyze the Kernel- tracker- recorded file CeLog.clg (Windows CE .NET 4.20 platform) and get some errors from peralyzer.exe:
D:\WinCE420\release>perfalyzer.exe CeLog.clg
Loading CE database API from cedb400.dll
Loading symbols for celog.dll... 18 loaded.
Loading symbols for pspubsubce.dll... .map file not found.
Loading symbols for lan91c111.dll... 94 loaded.
Loading symbols for netui.dll... 706 loaded.
...
Loading symbols for rnaapp.exe... 120 loaded.
Loading symbols for RTH.EXE... 0 loaded.
Failure looking up symbol 0x1fb4285c
Failure looking up symbol 0x1fb4a768
Failure looking up symbol 0x1fb4a8d0
Failure looking up symbol 0x1fb4a768
Failure looking up symbol 0x1fb4a8d0
Failure looking up symbol 0x1fb4ad38
Failure looking up symbol 0x10011cac
Generating overall module report...
No records in input database!
Count failure generating overall module report
Done: See Perf\overall.htm for results.
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it
ERROR: d:\mckendricbb\private\winceos\coreos\filesys\dbase\.\dbase.c line 1622: DB:Fault!! - Corrupt OpenDB list - nuking it

D:\WinCE420\release>

The file overall.htm has no entries.

Frank

re: CeLog + Monte Carlo = Perfalyzer

ce_base — Fri, 27 Jan 2006 15:13:01 GMT

Thanks M. =) Just wait for the Microsoft cloning program. Though I don't think I or any of my clones would want to work on prefast. Watch out, you might become a liberal then.

Oh and as to hints about the future. Sorry, no, can't do that. But just wait, there are great things coming up that we're very excited about.

re: CeLog + Monte Carlo = Perfalyzer

Fri, 27 Jan 2006 10:45:35 GMT

Awesome Sue! I wish each team within Microsoft had their own copy of you ;)

Can't you start in the prefast team, so the platform builder prefast version could start supporting partial specialization of template classes?

Or make it possible to use the VS2005 build environment from platform builder?

Or just give some hints to the community what next platform builder will look like?

Oh, luckily I don't live in the US, so the risk of becoming a conservative voter shouldn't be that high.

Keep up your excellent work!

re: CeLog + Monte Carlo = Perfalyzer

JennyK — Wed, 25 Jan 2006 03:10:41 GMT

Very helpful. Thank you, Sue!

re: CeLog + Monte Carlo = Perfalyzer

ce_base — Tue, 24 Jan 2006 23:25:02 GMT

Thanks Doug. Yeah, it would be relatively easy to add a command-line option to remove idle from the totals and percentages. We've talked about it before but never quite had the need. Hopefully I'll get to it sometime...

Sue