InstantCopy 7.03 and Hyperthread

I have just put together a new system and I am wondering why ic is only using around 45-50% of my cpu. Even though the upgrade is significant, I am not seeing any added benifit in speeds because of this. My system WinXP Professional p4 2.80 (800mhz fsb) Hyper Threading Enabled 1024MB of DDR400 Samsung Ram ASUS P4C800 Deluxe Motherboard Dual Channel 800MHZ fsb, S-ATA(Raid) 2x120GB 150mbps 8MB cache Seagate S-ata hard drives (raid-0 Striped) 2x80GB 100mbps 2MB cache West Dig IDE Hard drives (raid-0 Striped) ATI All-in-wonder 9700 Pro ac97 On Board Audio 3com Gigabit Lan Dvr-a05 Speed Hack TDK 52x24x52 CD-RW 1.44 Floppy Everything has Most recent drivers Procedures I use: Rip with dvddecrypter 1.6 to ide raid Open with ic7 update 3, do custom resize under details change temp to s-ata raid So it reads from one raid and reencodes to the other raid. Before the hardware upgrade the star trek TNG episode discs use to take me 70-75 minutes to complete. Now they take the same but are only utilizing half the cpu instead of the whole cpu. Before I was only running P4 2.6 533FSB gigabit MB running 1024MB ddr333 2x80GB 100mbps 2MB cache West Dig IDE Hard drives (raid-0 Striped) So going to the same raid at lower fsb and smaller cpu made NO significant difference. Anybody got ANY ideas as to why?

My configuration, and results are pretty much the same. My config: WinXP Professional P4 3.06ghz (800mhz fsb) Hyper Threading Enabled 1024MB of DDR400 PC3200 Memory (Corsair) ASUS P4C800 Deluxe Motherboard Dual Channel 800MHZ fsb 2x200GB ATA/133 Maxtor drives (7200rpm) NVideo 8xAGP Ti4200 ac97 On Board Audio 3com Gigabit Lan I get about 50% CPU utilization using IC7 (patch 3). It takes about 70 minutes for a 7.8gb->4.3gb conversion. Ranges from 1.50MB/s to 2.25MB/s. I get the feeling the reason it doesn't maximize the CPU (or utilize 100%) IS because of hyperthreading. I think it sets up a boundry for other applications to be running at the same time. After I finish my current batch of copies, I might turn the hyperthreading off and see what the results look like (and post them).

me too 

I have to wait for about 10 more minutes and I am going to try as well.

Weird results. Although the Task Manager showed 95-99% CPU utilization using IC 7 with hyperthreading disabled (via bios), the time to complete was almost the same as if I had hyperthreading enabled. Only difference I noticed was I couldn't do much extra, too sluggish for other applications running. (took a few seconds to bring up a DOS box, after clicking on Run, CMD.exe. In hyperthreading mode, instantly pops up.

Same Here 

Thanks for the idea! I didn't realize it would have enough horsepower left over to do capturing while encoding. I'm doing a 1&1/2 hour video capture (firewire) while encoding with IC7. No impact! Cool!

Sorry, IC 7 isn't multi-threaded. So, for people with Hyperthreading capable or Dual CPUs, it doesn't buy you any speed. 50% of a HT CPU is really close to 100% (Think about it.) Of course, as you noticed, it may assist you with having some free cycles to do other tasks. But with HT, if you do too much other work, it'll definitely slow down IC 7. It's not the same a real 2nd CPU... it just pretends to have a 2nd CPU.

Well, in hyperthreading mode, I have not seen any slow down in IC 7 while doing something else (like video capture) in another session. I have a dual head setup, encoding with IC7 in one window and Studio 8 in the other. It takes just about the same amount of time to do an IC7 job that way, as it does with no second session running or if I disable hyperthreading.

same here