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CPU usage on Nova-T ?

 
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CPU usage on Nova-T ?
svkhtn
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#1
2005-11-23, 11:51 PM (This post was last modified: 2005-11-23, 11:59 PM by svkhtn.)
Hi,

Could you please tell me when running Nova-T PCI or the Nova-T USB2, how much CPU is used in each case?

Does the USB2 version use much higher CPU than the PCI version ?

By the way, does anyone use MVP and Nova-T USB2 to pause/rewind/forward live TV ? Is it ok? I am a bit worried that the CPU usage of the Nova-T USB2 is too much to do the job.

Thanks a lot,
SV
dazzyb2k3
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#2
2005-11-24, 10:48 AM
GBPVR is great at this sort of thing and DVB cards have a very low overhead because they are all hardware based. I have 4 DVB cards fitted (including 1 Nova T USB2) and even when recording four channels at once the usage rarely goes above 20%.

Playback of a pre recorded file takes slightly more because the PC has to decode the file using software. Depending on the decoder, this is typically around 20% for me. So even with four cards recording and playing back a file at the same time i'm only around 50%.

The MVP also has it's own processing power so the inclusion of one shouldn't make much of an impact either. Unless you've got a very low end system I wouldn't worry too much.
svkhtn
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#3
2005-11-24, 12:02 PM
dazzyb2k3, thanks for your reply.

Because I remember I read somewhere, someone told that it used about 50-60% of the CPU when he ran Nova-T USB2 and MVP. That's why I am a bit worried the system will be quite heavy to run other applications. At that time, I thought the Nova-T PCI will be better because it is plugged directly into the mainboard. If the CPU usage is not much different, I might go for the USB2 version because it is more flexible.
dazzyb2k3
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#4
2005-11-24, 01:50 PM (This post was last modified: 2005-11-24, 01:55 PM by dazzyb2k3.)
I added a Nova T USB2 because I ran out of PCI slots and i've been extremely happy with it - it's very stable and there is no difference in CPU usage over my PCI cards. If anything I would say it's even more responsive.

Unfortunately I don't have an MVP myself (yet!) so I can't give you a definate answer on this but I know people who are running several MVP's at once without any problems. Unless the MVP is an absolute system hog (which I cant believe) I'm sure it'll be fine with the Nova T USB2. I'm certainly not thinking twice about adding one to my system.

Maybe someone with an MVP can give some indication of CPU usage?
svkhtn
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#5
2005-11-24, 03:43 PM
Thanks dazzyb2k3.

From what you have experienced with both PCI and USB2, I think it is fine to run the USB2 with MVP. I will post a query on the MVP section to see if anyone has done this and how much CPU is used then.
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