Re: Extremely slow debugging performance in VS2003 with interop

From: arothberg <arothberg@xxxxxxxxxxxxxxxxx>
Date: Fri, 2 Dec 2005 07:22:03 -0800

[re-posting this with correct email alias for paying subscribers]

"arothberg" wrote:

> I do not have _NT_SYMBOL_PATH defined as a system variable.
>
> Regarding renaming symsrv.dll, it does produce interesting behavior. I
> rename the file to symsrv.dll.hide, start VS and the initial run of the app
> in the debugger now executes CreateInstance in 12 secs instead of 45.
> However, the second time I run the app (without shutting down VS), I'm back
> to 45 seconds every first time I run the app in the debugger. If I shut down
> VS, start it up again, and run the app in the debugger, it's back to 12 secs
> the first time I run the app in the debugger, then it's back to 45 seconds
> every subsequent first time I run the app in the debugger.
>
> Even if I could get it to run 12 secs every time, it's still unbearably
> slow. Any other ideas?
>
> Here is the 12 second output:
>
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\ReproSlowDebug\ReproSlowDebugCPP\ReproSlowDebugCPP\Debug\ReproSlowDebugCPP.exe', Symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ntdll.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\kernel32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\mfc71d.dll', Symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\msvcr71d.dll', Symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\gdi32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\user32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\shlwapi.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\advapi32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\rpcrt4.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\msvcrt.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\comctl32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ole32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\oleaut32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\imm32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\lpk.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\usp10.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\MFC71ENU.DLL', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\uxtheme.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\Program Files\VSCLIENT\viexhk32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\wsock32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ws2_32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ws2help.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\MSCTF.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\SynTPFcs.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\version.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\SafeGuard\SafeGuard Easy\SgMsgBhk.dll',
> No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\MSCTFIME.IME', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\clbcatq.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\comres.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\mscoree.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorwks.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\msvcr71.dll', Symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\fusion.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\shell32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorlib.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\assembly\NativeImages1_v1.1.4322\mscorlib\1.0.5000.0__b77a5c561934e089_947c609d\mscorlib.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\sxs.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\xpsp2res.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorsn.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\ReproSlowDebug\ReproSlowDebugCPP\ReproSlowDebugCPP\Debug\ReproSlowDebug.dll', No native symbols in symbol file.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorjit.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\diasymreader.dll', No symbols
> loaded.
> The thread 'Win32 Thread' (0x2ec) has exited with code 0 (0x0).
> The thread 'Win32 Thread' (0xf7c) has exited with code 0 (0x0).
> The thread 'Win32 Thread' (0xfc4) has exited with code 0 (0x0).
> The thread 'Win32 Thread' (0xb04) has exited with code 0 (0x0).
> The program '[3192] ReproSlowDebugCPP.exe: Native' has exited with code 0
> (0x0).
>
>
> Here is the 45 second output:
>
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\ReproSlowDebug\ReproSlowDebugCPP\ReproSlowDebugCPP\Debug\ReproSlowDebugCPP.exe', Symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ntdll.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\kernel32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\mfc71d.dll', Symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\msvcr71d.dll', Symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\gdi32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\user32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\shlwapi.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\advapi32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\rpcrt4.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\msvcrt.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\comctl32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ole32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\oleaut32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\imm32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\lpk.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\usp10.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\MFC71ENU.DLL', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\uxtheme.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\Program Files\VSCLIENT\viexhk32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\wsock32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ws2_32.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\ws2help.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\MSCTF.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\SynTPFcs.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\version.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\SafeGuard\SafeGuard Easy\SgMsgBhk.dll',
> No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\MSCTFIME.IME', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\clbcatq.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\comres.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\mscoree.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorwks.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\msvcr71.dll', Symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\fusion.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\shell32.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorlib.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\assembly\NativeImages1_v1.1.4322\mscorlib\1.0.5000.0__b77a5c561934e089_947c609d\mscorlib.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\sxs.dll', No symbols
> loaded.
> 'ReproSlowDebugCPP.exe': Loaded 'C:\WINDOWS\system32\xpsp2res.dll', No
> symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorsn.dll', No symbols loaded.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\ReproSlowDebug\ReproSlowDebugCPP\ReproSlowDebugCPP\Debug\ReproSlowDebug.dll', No native symbols in symbol file.
> 'ReproSlowDebugCPP.exe': Loaded
> 'C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorjit.dll', No symbols
> loaded.
>
>
> "Oleg Starodumov" wrote:
>
> >
> > > I do not have any entries in my "Debug Sumbol files" section for the solution
> > > and am not using a symbol server.
> >
> > Is anything specified in _NT_SYMBOL_PATH environment variable?
> >
> > > Were you able to reproduce the issue on
> > > your machine(s) with the code I provided?
> > >
> >
> > Yes, I see a delay when calling CreateInstance for the first time, and it is definitely
> > related with loading symbols for a large number of .NET modules (which get loaded
> > by the process during that time; the second call to CreateInstance is quick because
> > it does not load any new modules).
> >
> > Also it seems that in my case symbol server plays a major role in the delay.
> > If I rename symsrv.dll (located in <VSInstallDir>\Common7\IDE directory, VS restart is required),
> > the delay almost disappears. You can try to do the same thing, will it have effect
> > in your case?
> >
> > Oleg
> >
> >
> >
> >
> >
.

References:
- Extremely slow debugging performance in VS2003 with interop
  - From: arothberg
- Re: Extremely slow debugging performance in VS2003 with interop
  - From: Oleg Starodumov
- Re: Extremely slow debugging performance in VS2003 with interop
  - From: Oleg Starodumov
- Re: Extremely slow debugging performance in VS2003 with interop
  - From: arothberg

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