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Stuttery Graphics at any resolution (Avatar rotation test)

Piggie Paule
Registered User
Join date: 22 Jul 2008
Posts: 675
08-03-2009 11:08
First my system spec:

Q6700 Quad core CPU at 2.9Ghz
8GB Memory
Nvidia 8800GTX (768MB ram)
Windows 7 (64-bit)

I seemed to have developed a stutter (I don't think it was there before but I can't be sure)

Standing in SL in my house, and just rotating on the spot. It's not a smooth movement sideways.

It moves smoothy then stutter for a fraction of a second, then jumps to where it WOULD have been without the stutter (if you see what I mean)

During the course of a full 360 rotation on the spot it's probably stuttering about 8 to 10 times.

So they are very quick stutters.

I've lowered quality settings and MASSIVLY reduced the size of the SL window but makes no difference, so I'm tempted to think it's not lack of computer power that's the issue.

The Release and Beta clients are the same.
Dante Tucker
Purple
Join date: 8 Aug 2006
Posts: 806
08-03-2009 13:14
This happens to some people. Including myself on one of the computers I own, it runs SL beautifully, 60fps on average in crowded areas. however while turning it can freeze up for minutes. I have found no solution. Luckily I have another computer which also runs SL beautifully.

For a while I found keeping your cache small, and clearing it frequently would help. Though it does not seem to any more.
Osprey Therian
I want capslocklock
Join date: 6 Jul 2004
Posts: 5,049
08-03-2009 13:15
I have (had?) the same card and it just died. They could well be fatally flawed as I seem to hear about them going belly-up a lot. Hope not, though.
Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
08-03-2009 15:48
Haha, when I first glanced at the thread title, I thought it said "Slutty Graphics". I guess that would have worked too, since we ARE talking about SL. :)

Piggie and Dante, try turning off Object-Object Occlusion, or Occlusion Culling, or whatever it is they're calling it in whatever viewer version you're using. That will usually clear up stuttering problems. Dante, your description of suttering after turning sounds like a classic example of typical occlusion-related difficulties. Having it off will lower your overall framerate, but it will make it more stable, since your computer won't have to recalculate what not to draw with each new frame. I'm not in-world right now to double check, but I think the option is in the Advanced menu.

Osprey, sorry to hear of your misfortune. I certainly hope whatever you've been hearing has been exaggerated. I had been under the impression that the 8800GTX was among the most durable cards nVidia has ever made. I've got two of them in my desktop, and they've served me very faithfully so far. But I'll knock on wood now, just in case.
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Dante Tucker
Purple
Join date: 8 Aug 2006
Posts: 806
08-03-2009 17:18
From: Osprey Therian
I have (had?) the same card and it just died. They could well be fatally flawed as I seem to hear about them going belly-up a lot. Hope not, though.


Remember, Nvidia only makes the GPU itself. It is third party companies that make the rest of the card. Usually when there are issues like that it is restricted to one card manufacturer.
Osprey Therian
I want capslocklock
Join date: 6 Jul 2004
Posts: 5,049
08-04-2009 13:53
eVGA
Osgeld Barmy
Registered User
Join date: 22 Mar 2005
Posts: 3,336
08-04-2009 16:36
doesnt really matter the brand cards can and do crap, My first evga took a dump, my second one has been running for ~4 years now

its the ones that constantly crap (BFG) that are a waste of time, every BFG card ive owned has died within a year ... and eventho they have lifetime warranties good luck claiming it

My BFG6600GT took 2 months
My Second BFG6600GT took 2 months
my buddies BFG8600GT took 3 months
and now MY BFG9600GT has been dead for 3 months, I have been on the phone for 4 hours once a week (walking around with a cordless speaker phone) every week since the second month and they wont return my emails

so imo avoid those idiots and let them die
Piggie Paule
Registered User
Join date: 22 Jul 2008
Posts: 675
08-05-2009 09:20
From: Chosen Few
Haha, when I first glanced at the thread title, I thought it said "Slutty Graphics". I guess that would have worked too, since we ARE talking about SL. :)

Piggie and Dante, try turning off Object-Object Occlusion, or Occlusion Culling, or whatever it is they're calling it in whatever viewer version you're using. That will usually clear up stuttering problems. Dante, your description of suttering after turning sounds like a classic example of typical occlusion-related difficulties. Having it off will lower your overall framerate, but it will make it more stable, since your computer won't have to recalculate what not to draw with each new frame. I'm not in-world right now to double check, but I think the option is in the Advanced menu.

Osprey, sorry to hear of your misfortune. I certainly hope whatever you've been hearing has been exaggerated. I had been under the impression that the 8800GTX was among the most durable cards nVidia has ever made. I've got two of them in my desktop, and they've served me very faithfully so far. But I'll knock on wood now, just in case.



Thanks, I turned off Object-Object Occlusion and it's definatly made a difference (not sure if it's a difference for the good or bad though)

With it on (default) it was smooth then it stuttered, then smooth etc etc stuttering about 6 to 8 times per revolution (spinning on the spot)

With it turned off, the stutter has gone but it's more slighty jerky all the time instead.

Oh, It's definatly worse in the release candidate that it is in the current official viewer
Arksun Tone
Ark Designs, Sonyo
Join date: 26 Dec 2006
Posts: 91
08-08-2009 05:16
Another thought, there could be another device in your computer thats hogging system resources.

Something us music producers use is a program called DPC latency checker to determine how well a PC handles low latency realtime audio streams. But this handy little tool is also useful for just generally looking at whether there's something thats causing major DPC spikes and thus affecting everything else.

You can download it here:

http://www.thesycon.de/deu/latency_check.shtml

Has an explanation there of what it does too.

Basically, if you run that and see big red spikes on the graph, your system has a problem (my dpc latency stays around 25 in the green with my wireless network on, turned off goes down to 9 which is very good).

Things that can cause massive spikes include a specific card or onboard controller, irq sharing, or especially any motherboard software running in the background thats monitoring temperatures, voltage regulation etc and constantly polling the cpu. Turning those off could well help.

Anyways hope that in some way helps you :)