MSIME support causing slow setup until explorer.exe paused?

[Aric Stewart]

Humm,

   MSIMEService, MSIMEReconvertOptions, MSIMEMouseOperator, etc... those 
are all Messages that Microsoft Office looks for and sends to the IME 
during operations.  For the most part all those messages are just stubbed.

   The messages are Registered in Imm32/imm.c once per process, and also 
registered in winex11.drv/ime.c also once per process. I am pretty sure 
we do not send those messages somewhere. So I am not sure why they would 
be taking up so much cpu time.

Do you know what is happening with the messages during the slow-down?
thanks,
-aric


Dan Kegel wrote:
> I tried installing StarUML (after doing winetricks vcrun6 msxml3, as required),
> and the setup crept along very slowly... so I got curious and ran top.
> Most of the cpu time was being used by Explorer and wineserver,
> and interestingly, if I suspended Explorer by doing
>   strace -p <pid of explorer>
> and then pressing ^S, the install ran awful darn fast.
> 
> So, what was explorer doing that was slowing things down so much?
> 
> writev(3, [{"l\0\0\0\30\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 64}, {"M\0S\0I\0M\0E\0S\0e\0r\0v\0i\0c\0e\0", 24}], 2) = 88
> ...
> writev(3, [{"l\0\0\0*\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 64}, {"M\0S\0I\0M\0E\0R\0e\0c\0o\0n\0v\0e\0r\0t\0O\0p\0"..., 42}], 2)
> = 106
> ...
> writev(3, [{"l\0\0\0&\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 64}, {"M\0S\0I\0M\0E\0M\0o\0u\0s\0e\0O\0p\0e\0r\0a\0t\0"..., 38}], 2)
> = 102
> ...
> writev(3, [{"l\0\0\0*\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 64}, {"M\0S\0I\0M\0E\0R\0e\0c\0o\0n\0v\0e\0r\0t\0R\0e\0"..., 42}], 2)
> = 106
> ...
> 
> This persisted in the app, too, not just in the installer.
> 
> So it kind of sounds like our msime support is hurting us performance-wise?
> - Dan
> 
>