View Full Version : Dual Core improvement on DVDShrink and Decrypter?
madoka5
28th June 2005, 08:14
I've tried searching the forums and google and could not find a definitive answer to this, so I'm sorry if this has already been covered.
Does either DVD Shrink or DVD Decrypter benefit greatly from either Intel or AMD dual core solutions?
I'm interested in a FAST encoding machine and was wondering if these would be a good improvement or if something besides the CPU would be the bottleneck at some point (like the optical drives).
Have there been any test results?
Thanks in advance.
iNFO-DVD
28th June 2005, 09:08
Well if you can afford a dual-core then go for it anyway, will always come in handy especially when encoding is concerned.
I'll just make a comment on DVD-Decrypter or any other DVD ripper and that is you aint really going to see any benefit speed wise, though a ripper has to do some decryption it's pretty much down to the speed it can get the data off the dvd-rom unit.
madoka5
28th June 2005, 17:21
Well if you can afford a dual-core then go for it anyway, will always come in handy especially when encoding is concerned.
I'll just make a comment on DVD-Decrypter or any other DVD ripper and that is you aint really going to see any benefit speed wise, though a ripper has to do some decryption it's pretty much down to the speed it can get the data off the dvd-rom unit.
So am I to understand that the optical drives are the real bottleneck and that I would not see much performance boost from going to dual core?
The reason why I ask is that this machine would ONLY be used to rip and burn DVDs. I've got a 1,500+ DVD collection and don't like to turn into a lending library. So I'd rather copy a DVD and ask people to return the copy rather than take any chances with my originals.
dvd_maniac
28th June 2005, 20:55
You will NOT see an improvement when ripping or burning DVDs.
You might see a difference when Transcoding (Shrinking) from a DVD-9 to a dvd-5(R).
Although I am not sure, I do not think that Shrink is a multi-threaded application YET and so will not benifit from Dual-Core. It is probably a matter of time.
I am waiting for NERO Digital to add multi-threaded support before I plunge into a new system with Dual-Core and I am glad I waited as the prices are already dropping.
Doom9
28th June 2005, 21:09
The only bottleneck DVD Decrypter may possibly encouter is I/O.. speed is obviously most limited by how fast your drive can read it.. but if you're doing other I/O intensive tasks at the same time, then I/O will become a bottleneck. You can throw in a RAID-0 with Raptor discs.. CPU has nothing to do with that.
While I believe you'll be hard pressed to find an encoder that doesn't use threads (you put encoding into a separate thread or your GUI will block completely during encoding), hardly any application is specifically optimized for SMP. Yet, if you look at benchmarks faster CPU = lower encoding time.. simple as that.. if the app has one thread reading/decoding and one encoding and another one writing.. Windows will try to schedule them in the way to best use your resources.. hence the X2 CPUs will always be faster than their single core brethren at the same clock speed. All SMP optimizations really can do is improve the gain by detecting the second unit, split up the work more evenly and make sure the threads are evenly divided between the CPU units.
We really need to put up an SMP FAQ.. this has been asked too many times in the last 4 weeks.
Chetwood
29th June 2005, 06:53
Although I am not sure, I do not think that Shrink is a multi-threaded application YET and so will not benifit from Dual-Core. It is probably a matter of time.
No it isn't and it also won't be since development has stopped (http://forum.digital-digest.com/showthread.php?s=&threadid=47344) and even if dvdshrink will return for bugfixes as promised (which looks unlikely atm) he'll be setting other priorities.
mrbass
29th June 2005, 21:44
The reason why I ask is that this machine would ONLY be used to rip and burn DVDs. I've got a 1,500+ DVD collection and don't like to turn into a lending library. So I'd rather copy a DVD and ask people to return the copy rather than take any chances with my originals.
this is precisely what cleanfilms.com does...modifies the original and makes a copy then rents it out while keeping a 1:1 ratio (1 original to 1 copy)
mrbass
3rd July 2005, 00:11
doom9 maybe you can do a quick test with dvdshrink with your new AMD dual cores to put this to rest.
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