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nessusing
9th December 2005, 15:33
my question is when i have a dual core cpu, and try to encode a video clip using a given codec, the ability for it to take advantage of both cores is determined by the codec itself or the editing software (eg. premiere, virtualdub, etc.) or both?

another question is: i dont quite understand the difference between multi-thread and multi-process? i am guessing my above question has something to do with them?

thx!

Revgen
10th December 2005, 09:11
All programs from the application (Vdub, etc.), to the codec, and others (avisynth) are partly responsible for how your resouces are used.

The codec, however, is generally the program with a better opportunity to benefit from the extra core and improve overall performance.


Multi-threading is when a program queues multiple processors to process a task. Multi-processing is when a multi-threading task is being executed or multiple single-threaded tasks are being done by each processor. Basically, as long as multiple processors are performing tasks, they're multi-processing.


Also, make sure to say "multiple" 10 times really really fast after reading this. :D

anti
22nd December 2005, 19:04
Take a look at your processor performance charts. If they are both being maxed then the app is taking advantage of both cores.

DVD_GR
23rd December 2005, 16:03
my question is when i have a dual core cpu, and try to encode a video clip using a given codec, the ability for it to take advantage of both cores is determined by the codec itself or the editing software (eg. premiere, virtualdub, etc.) or both?

another question is: i dont quite understand the difference between multi-thread and multi-process? i am guessing my above question has something to do with them?

thx!

most freeware programs that we use arent optimized for dual cores,
this doesnt mean that the 2 cores will not be used.Just they will not be used at 100% efficiency.Remembered someone that encoded with cce with X2 and its performance was of the charts,incredible!!