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PPD drops a ton when I am hardly using the machine

post #1 of 12
Thread Starter 
So I am running my SMP client in the background and when I woke up this morning HFM said my PPD was around 19.5k but then after a bit of browsing on the internet it dropped down to like 16k. My frame time goes from like 2:55 to 3:15.

So I know it should drop while I am using the machine, but to drop that much with just minor use? I am not playing 3d games or anything I am just in Chrome on OCN most of the time, and occasionally watch a YouTube video... so nothing really CPU intensive, but it seems like it is dropping quite a bit for just that usage.

Also I notice that on the bigger WU's like the 6701/6702 I get much lower PPD like around 13k but when I use the machine it doesn't really drop either... so it stays around 13k whether I am completely off the computer or on it browsing the web.
post #2 of 12
Well, I know my PPD can drop from 4.3k to ~3k when I've got a lot of tabs open, so that might be a factor. Easiest way to confirm is to close the browser, and wait for the client to complete 3%. Then at least you'll know if it is the browser, or if it's something else you need to look for.

And yeah, P6701/6702 just give worse PPD; nothing to be done about that.
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by zodac View Post
And yeah, P6701/6702 just give worse PPD; nothing to be done about that.
Yeah I know the PPD is low but what I don't understand is why these WU's seem to be unaffected by me using the computer... like it will be 13,500 when the computer is sitting there and when I am actually doing something it might go down to like 13,000.

I know the browser is what is causing the problem because right when I get on the computer the PPD starts dropping... but I just didn't think the amount it was dropping was appropriate to the usage. I mean internet browsers don't really put all that much of a load on the CPU last time I checked, especially Chrome.
post #4 of 12
Well, are you sure it's the browser, and not something else running in the background, that comes to the fore when you come back on the computer?

As for P6701/6702 not being affected, they're bigger, almost bulkier WUs... they're similar to other WUs, but not the same, so they won't necessarily be affected by the same things.
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post #5 of 12
The point drop you are seeing is normal for smp WU's. The current smp WU's are very cpu intensive and any cpu cycles used by other programs will have a direct nonlinear affect on them, especially with multi threaded / core systems.

Each core / thread is assigned a task and each has to finish its task before the next task can be started. If you have an i7 4 core / 8 thread and if you are using 1% of a core on a 8 threaded machine you would be slowing down the process by around 8%. At least that is the way it has been explained to me.
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post #6 of 12
Thread Starter 
Now this has gone too far...
Quote:
Project ID: 6056
Core: GRO-A3
Credit: 481
Frames: 100


Name: 2500k
Path: C:\\Users\\Joe\\Folding\\
Number of Frames Observed: 147

Min. Time / Frame : 00:02:50 - 19,562.6 PPD
Avg. Time / Frame : 00:03:13 - 16,172.0 PPD
Cur. Time / Frame : 00:04:32 - 10,132.6 PPD
R3F. Time / Frame : 00:04:50 - 9,503.7 PPD
All Time / Frame : 00:03:15 - 14,133.7 PPD
Eff. Time / Frame : 00:03:19 - 13,849.6 PPD
Right now I am just using the internet and I am down like 10,000 PPD. The first time I did this unit was 19k PPD average at anywhere from 2:50-3:00 per frame and now I am now getting 9,500. My frame time has nearly doubled.

It seems like something else is at play here but I have nothing else running besides HFM, Chrome, and CoreTemp.
post #7 of 12
Anything else in the Processes tab in Task Manager?
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post #8 of 12
streaming videos (youtube) will drop your ppd a good amount, at least in my experience
post #9 of 12
Show a screen shot of the task manager and all the processes you have running...
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post #10 of 12
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