windows xp professional

[sonoma1993]

In task manger, when you adjust the a process priority for a cpu. what the diffrence bwtween running it from normal and real time? I know when you set it to high, that process will have higher cpu priority over other processes. But real time, I'm not sure what that one does.

 

[nova2]

note: this was very easy to find on google.

google this

"real-time priority class process preempt"

or search for that here:
http://www.mvps.org/access/api/api0059.htm

 

[Smartazz]

Thanks for the link, I didn't know what realtime meant either or when to use it.

 

[Kyanzes]

There are certain situations when mission critical level real time processing is justified, like unrarring your favourite pictures from a huge archive.

 

[Smartazz]

Originally posted by: Kyanzes
There are certain situations when mission critical level real time processing is justified, like unrarring your favourite pictures from a huge archive.

Or using voice recognition programs for short periods of time.

 

[gsellis]

Unless you have a process that cannot skip a single cycle, don't use realtime. Even device drivers that do streaming should not use real-time unless they are in a critical section and must not be interrupted (you need permission from God to do that). Using real-time for an app is a sure way to create a system that does not respond. You could end up preempting a process that you are dependent on (such as a data lookup). Therefore, your app has the system locked up giving you CPU cycles while you wait for an app that cannot get CPU cycles to give you the data you are waiting for.

Use Normal, and only rarely elevate it. But be aware that by elevating it, you can make it work even slower.

And no, not even Voice Recogition programs. Maybe a USB capture of streaming data, but even then, use high. Real-time could interfere with the Disk write and corrupt it.

 

[Smilin]

NT is not a realtime OS nor are any applications designed for it.

Use of realtime will very likely crash your system.