Matt Gushee wrote:

 > GMain.Io.add_watch is used to cause the daemon to read the pipe (code
 > below). Now, I thought this would prevent the app from monopolizing
 > the CPU, but apparently it does not. When the app is started but
 > before the GUI is displayed for the first time, CPU usage is
 > negligible, but as soon as the GUI is displayed, the app starts using
 > all available CPU time,

Oh, wait. I now remember that GMain.Io.add_watch has the optional ?prio 
argument. Would setting the watch function to a low priority help? If 
so, what would be a reasonable value?

-- 
Matt Gushee
: Bantam - lightweight file manager : matt.gushee.net/software/bantam/ :
: RASCL's A Simple Configuration Language :     matt.gushee.net/rascl/ :