CPU usage on Dual CPU systems

[sethg]

The process wait blocking when the codec runs on another processor is a bug that should be fixed.

It is also a pity that the codecs themselves are not multi-processor friendly. Even if AVI2DVD did use a non-blocking wait, you would still have one processor sitting mostly idle (unless you kept it busy with something else). To make best use of a multi-processor system, AVI2DVD should use a non-blocking process wait and the codecs should be able to spawn at least one thread per processor. That may or may not be reasonable for the codec.

[vmallet]

When I am encoding with Avi2Dvd, the Avi2Dvd process uses up 50% CPU time which is 100% of 1 CPU. Why is the avi2dvd EXE using so much CPU time? This isn't correct is it?

I have noticed this too. It doesn't have to be on a multicpu system though: avi2dvd will compete for CPU on a single CPU system. For example, if you encode using HCEnc and 'suspend' the encoding, avi2dvd will use 100% of your only CPU until you resume the encoding.

The first thing I do when I start avi2dvd is to lower its priority to 'Low' to make sure real processes get the CPU.

Vince.

[hippy]

I have the same problem and made another thread because I didn't see yours.

I'm running the AMDx2, so two cores on one CPU.

[trustfm]

3xH and to all of you it is an bug i will fix it at the 0.4.3 for the time beeing just lower the priority of avi2dvd process.

[3xH]

3xH and to all of you it is an bug i will fix it at the 0.4.3 for the time beeing just lower the priority of avi2dvd process.

Thanks

[vmallet]

3xH and to all of you it is an bug i will fix it at the 0.4.3 for the time beeing just lower the priority of avi2dvd process.

Great, thanks!

Vince.