Weird lag issue

When I login to SL and get to my parcel, everything runs reasonable smooth (as far as my laptop lets me). Most (if not all) comes from cache, so hardly any loading time. So far so good.

Now after lets say half an hour, I can hardly move when in or next to my shop. Facing away from the shop, things run well, but as soon as I face my shop, frame rate drops below 2 and I can hardly move. TP-ing to my sky platform or to another parcel, things run smooth again, as long as I do not go back to my shop.

Logging off and logging on again, and I start all fresh. No need to clear cache even. People in my shop do not experience the lag I do at such a moment.

Any ideas?

I would try to actually clear cache. Maybe it is just one file/texture that was downloaded to your cache and got corrupted somehow, so when your viewer takes this one file, it causes this.

Aside from that, this is indeed pretty weird...

Well I did try that, but it does not matter a bit. Same thing happens, as soon as I am online too long, the lag starts, and only on my parcel. Well, that remains to be seen as I never spend too much time on other places, so it might happen there as well

Hmmm. Weird. Do you have anything scripted on your parcel that might cause this by checking and rechecking stuff or something like that? Have you tried out another client?

See what happens if you reduce your draw distance. Sometimes a complex item on someone else's land that SHOULD be culled by interposing walls or hills can cause horrible lag when you face that direction.

Also try manually locating and clearing the cache files. Sometimes the clear cache command in Preferences doesn't remove a corrupted cached file.

I have had similar lag problems. Facing certain parts of the building it get major lag, but once I turn away it disappears. This has happened in a couple of spots that I had built. For the most part it seems the lag was being caused by some of the free textures I had used to make the builds. Once I removed the textures and cleared cache, and replaced the textures with other ones .. the problem went away.

Shiftings experiences seem just like mine. Weird is that about all of my textures are purchased ones, and with this amount of prims its hard to find the faulty ones. Might do a item by item copy though to find it out...

@Ceera: As for clearing cache manually, did not help a bit And since I run on a laptop, my drawing distance is low enough already (already hard enough a task for the damn machine!)
I am very positive the problem is on my parcel, just cannot pinpoint the source...

@Novis: Well just upgraded, no use. And yeah there are scripted items, so in theory it could be a faulty script. But most scripts are touch actived and have listeners on timers.

You might also want to peek at Advanced / Consoles... both the Frame Console and Fast Timers both before and after the problem starts to see if the viewer is spending its time noticeably different (Frame Console is easiest to spot that) or taking more time with one specific task (Fast Timers for that one) which can help you get an idea of what's actually happening.

Great advice Kitty, now only to know what it means
What I do see, is that when the lagging happens, the +Render value in the Fast Timers is almost 500, where right after startig up after a clear cache, but after everything has been loaded, the value is around 85. So that seems to indicate the problem, now only to know what it means Thanks for the advice, I never thought of actually using those consoles.

You can expand render by clicking on the + actually .

You'll likely need to collapse all the other categories, and even all of the subcategories under render to find which one is the culprit (if any) and then expand that one.

Remember that it's what's significantly different on average rather than just spikes. If "Alpha" spikes to 500ms for instance but then settles down, that's not going to be due to actually drawing "Alpha" but could be things like swapping memory in and out which will stall whatever the viewer happened to be doing.

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Few other things I run into:
* having the map open reduces my fps to 1/3rd of what it is with the map closed
* being around an excessive amount of sculpties for a long time tends to decimate my fps (both in terms of average and "freezes" but tp'ing away somewhere else will fix it
* I run SL full-screen so may not apply, but switch to another proggie and then back again will noticeably degrade performance over time

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And finally, if you can make the effort, try a few different viewers as well to see if one of them doesn't "magically" make it go away (1.19.1, 1.20, 1.21 RC, Nicholaz build, Cool SL, etc) .

Well in the meantime I did find that out as well, and the highest value is "Render-Geometry-Pools-RenderPool-Simple". Fullbright and Alpha help to the high value as well. Leading me to believe it is the rendering of normal objects.
Funny is that I do have many sculpts in my shop, but the problem is the biggest where 2 non-sculpt dinner sets are....

Might try Nicolaz viewer, because somehow it seems connected to the time I am logged in, i.e. some memory leak or so. Will try and keep you updated

Same thing happens, but I've found it's a memory leak for me. When first logging in the client uses around 300 megs and as time goes on it shoots up to 1 gig ram used then keeps climbing the longer im on. So roughly I have to relog every 2 hours or so

Only program that does it, it's strange.

But this would be a weird kind of memory leak, wouldn't it, to improve just by looking away? I guess I can dream up an obscure memory allocation error that would free when a particular texture wasn't in view. It would be pretty interesting to find that memory footprint indeed tracked this particular rendering performance problem.

Based on some extremely strange rendering artifacts I've seen recently with alpha textures, I wonder if Shifting's experience of improved performance was just from changing textures, or if any texture offsets were also changed with the new textures.

Keeps getting stranger and stranger. After a Live Chat with Lindens, I adapted some settings in my preferences. All sliders except Ojects, I set to Low, and guess what: no more problems. After that, I did slide them back up to medium again, and the problem did not come back.

Furthermore, I found out that the problem is either in the center of my store, of the center of my parcel, not entirely sure. If it is the center of the store (best guess), the only reason I could think of, is that for the floors and ceilings I do use megaprims. On the other hand, my building platform, where I spend most time, is also 1 big megaprim, and never gave a problem.

Anyway, it seems that my problem is solved for the moment, though I have no idea why. If it comes back, I know where to look for pointers in the right direction (thanks Kitty).

P.S: Nicolaz viewer did not help a bit, so I moved back to the regular viewer again, since it never gives me problems except the weird lagging.

If you are using the old megaprims that are cut, it may be worth some time swapping them for the new megaprims which are uncut and suppose to be more stable, and on the whole I have found this to be so.