simple question about rempeg2

[bhunt9]

my system has dual athlon 1800's. I just resized my first movie using rempeg and it only took about 14 hours. I'm pretty happy because the guide said it would tak about 24. My question -- under the main tab on rempeg2 it has an option for parallel threads. If i set this to 2 or more will it encode the movie faster since i have dual processors.

[ravon]

Yes it will, but it sounds like an eternity anyway. I convert DVD->VCD in around 6-7h
on my Athlon 1.3GHz (running on 1GHz due to lousy memory). And I still do a lot of
linking between programs using Avisynth.
Do you really need that program? I've never tried it, so maybe it's the best.

/ravon

[bhunt9]

i can convert to vcd much faster than that, but i just got a dvd burner so i want to keep the movie in dvd format and just make it smaller than 4.7. The guide here at vcd help said to use this program, and this is by far the easiest guide i've seen so far. Thanks for answering my question. How many threads is too many?

[ravon]

Well using too many threads actually gives the opposite effect since the OS has
to swap between the threads, and you'll get some overhead. But you can run one thread
per processor at a time

/ravon

[bhunt9]

thnx, thats what i thought, but wasn't sure

[SLK001]

bhunt9,
I've heard that dual processors will cut your processing by 66% (or, from 14 hours to less than 5 hours). I haven't personally been able to verify this, because I only have a single processor 1.8GHz P4. I also want to use REMPEG to transcode longer movies to 4.7GB, and I would even consider getting another system based on dual processors.

Can you do an experiment for us to test the advantages of dual processors? Rip 3 or 4 chapters from a DVD (less than 10 minutes) and use REMPEG to transcode to 85%, using the best settings available. See how long it takes using only one thread and then repeat using two threads.