![]() Well, Win32PrioritySeparation is composed of three 2-bit bit fields. If you’re like me, I found this all a bit odd. The Performance Options dialog changes the value of Win32PrioritySeparation to either hexadecimal value 0x26, if you select the “Foreground” option, or 0x18, if you select the “Background” option. The Win32PrioritySeparation default value is 2 for XPe or XP Pro (and other versions of the Windows OS family, but you’re reading the wrong blog if you’re interested in them). The Performance Options dialog, it turns out, manipulates system registry value HKLM\SYSTEM \CurrentControlSet\ Control\ Priorit圜ontrol\ Win32PrioritySeparation. There are, however, a total of seven functionally unique setting for the quantum. This dialog only lets one change the quantum to favor foreground or background processes. ![]() Readers, who were driven nuts by my meager attempt to create suspense, could have searched MSDN on their own to find how to change the quantum setting using the Performance Options system dialog. In my last blog article I described thread quantum and, at the end of the article, mentioned that one could change this value.
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