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Odd Behavior (Not really a bug)

 
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Odd Behavior (Not really a bug)
longjohn119
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Posts: 24
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Joined: Nov 2010
#1
2010-11-09, 12:52 PM
On my client machine is a Dell laptop with a 2 Ghz P4 mobile processor 512Mb RAM and a 7500 series ATI video card with 32 Mb dedicated video RAM (I believe it also can share main RAM too) Not exactly a powerhouse especially compared to my tri-core server with a ATI 4830 vid card.

Anyways I noticed what I cansider to be strange behavior although not necessarily a bad thing, but I;m getting the best performance using the EVR renderer over the VRM9 or VRM7 which is the opposite of what I'd except on my laptop client. CPU usage using a .TS SDTV stream is about the same for all 3 when just watching a movie but with the VRM7 or 9 I get stuttering when the transparent overlays drop down while with the EVR renderer it barely increases the CPU usage in the same scenario. I was expecting to see the exact opposite behavior and figured the VRM7 renderer would give this laptop the best performance since it's really a DX7 card and doesn't support all the DX9 functions. (It does seem to support hardware acceleration under DX9 though)

I just thought I was kind of weird but I think people should give the EVR renderer a shot even with an older less powerful box. You may find it performs best overall with only a slight (looks like less than 5%) increase in CPU usage during playback but a lot better handling of overlays.
Reddwarf
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Posts: 6,629
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#2
2010-11-12, 09:49 AM
longjohn119 Wrote:On my client machine is a Dell laptop with a 2 Ghz P4 mobile processor 512Mb RAM and a 7500 series ATI video card with 32 Mb dedicated video RAM (I believe it also can share main RAM too) Not exactly a powerhouse especially compared to my tri-core server with a ATI 4830 vid card.

Anyways I noticed what I cansider to be strange behavior although not necessarily a bad thing, but I;m getting the best performance using the EVR renderer over the VRM9 or VRM7 which is the opposite of what I'd except on my laptop client. CPU usage using a .TS SDTV stream is about the same for all 3 when just watching a movie but with the VRM7 or 9 I get stuttering when the transparent overlays drop down while with the EVR renderer it barely increases the CPU usage in the same scenario. I was expecting to see the exact opposite behavior and figured the VRM7 renderer would give this laptop the best performance since it's really a DX7 card and doesn't support all the DX9 functions. (It does seem to support hardware acceleration under DX9 though)

I just thought I was kind of weird but I think people should give the EVR renderer a shot even with an older less powerful box. You may find it performs best overall with only a slight (looks like less than 5%) increase in CPU usage during playback but a lot better handling of overlays.

What OS is the laptop running?

"I'd rather have a bottle in front of me than a frontal lobotomy"
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