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Issue Details (XML | Word | Printable)

Key: VWR-4987
Type: Bug Bug
Status: Open Open
Priority: Major Major
Assignee: Unassigned
Reporter: eren padar
Votes: 0
Watchers: 1
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1. Second Life Viewer - VWR

Contradictory script reports

Created: 16/Feb/08 10:11 AM   Updated: 06/Mar/08 07:29 PM
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Component/s: Scripting
Affects Version/s: None
Fix Version/s: None


 Description  « Hide
ElvenMyst Sim (and others reporting similar readings).

We are experiencing excessive lag today. 3 weeks ago our TFT was 10.5. A week later it went to 15.5. Today it's reading 22.5. The facts are that very little on the sim has changed. We have checked for scripted and physical items (we run a very tight sim).

Interestingly, upon checking script times, we ran up against apparently contradictory information. In the stats area (ctrl shift 1) it states we have "4384 active scripts" (which is ridiculous. That would come to 68.5 scripts per 1024m... which is not the case). It also reports "17.2 ms" script time.

However, in the Estate Tools Script report system, it reports a more realistic 881 scripts taking a total of 3.9ms. This is a far more believable figure.

3 weeks ago, when our TFT jumped from 10.5 to 15.5, absolutely nothing on the sim had changed. No new builds, no new scripting. So there is no doubt something is going on in the background because up to this time, ElvenMyst and ElvenHearth were two of the best performing sims on the grid.

Further evidence that something is wrong: Both ElvenMyst and ElvenHearth were running at about 10.5 TFT... and BOTH jumped to over 15.5 at the same time. While it could be argued that one sim might have something happen to cause such fluxuation, it would be difficult to believe that two sims doing the same thing at the same time is mere coincidence. Evidence points to something going on behind the scenes.

We want our 10.5 back. We have run for months at 10.5. There's no reason that we should suddenly jump to 50% more than that. We're paying $700 a month for two sims. For those kind of fees, better performance is expected.



 All   Comments   Change History      Sort Order: Ascending order - Click to sort in descending order
Gellan Glenelg added a comment - 16/Feb/08 11:39 AM
I'm not familiar with your SIM, but 4384 does not seem at all "ridiculous" in my experience.

Some things to bear in mind that might help to explain the discrepancy:

  • An object containing 10 scripts will show as ONE script on "Top Scripts", but 10 "Active Scripts"
  • "Top Scripts" does not show scripts in attachments and HUDs. A single avatar with AO, scanner, scripted prim clothing and a few gadgets can easily contribute 50-100 scripts.
  • Scripts which are not doing anything (e.g. a "Set floating text" script which has already set the text) may not appear on "Top Scripts"

eren padar added a comment - 16/Feb/08 11:53 AM
Thanks Gellan. That is helpful information. At the time of the reading:
  • I was the only avatar in the sim and wearing minimal scripting, so the readings wouldn't come from avatars.
  • An object containing 10 scripts only showing up as one item in Top Scrips would explain a count discrepency, but it is still very difficult for me to believe more than 4,000 active scripts on the sim. I'm not saying it's impossible, but bears looking into.

It's too bad we don't have more accurate sim measurement tools (such as a consistent and comprehensive script listing) and it's too bad that every user doesn't have the ability to check his own devices and scripts for lag issues. Perhaps if we had such tools, the grid would run better.

Thanks for your response. I'd love to see these things addressed by LL so that we have more consistent and useful reporting tools.


McCabe Maxsted made changes - 16/Feb/08 12:16 PM
Field Original Value New Value
Component/s Scripting [ 10030 ]
Harleen Gretzky made changes - 16/Feb/08 12:20 PM
Summary CONTRADICTORY SCRIPT REPORTS Contradictory script reports
wayfinder wishbringer added a comment - 16/Feb/08 08:47 PM - edited
To add something to this:

I ran some tests this evening, checking out known script times on known items.

Vending devices that before never ran above .009 or .01 are now running at .018 and .023. Pardon me, but script times on objects do not change unless those objects change... and those objects have not changed. Our sim has gone from a nice, fast, pleasant 10.5 TFT to 19+... and data is not consistent with past findings.

There is something going on server side. I have been watching over our sims since we installed them last June and until the last couple of weeks they never exceeded 10.5 TFT in operation. I know what several scripted items WERE running at, and what they're NOW running at... and I'm not pleased.

I don't know what's been going on behind the scenes there at LL, but I do know that a vending device running at .009 is not going to start running at .022 for no discernable reason. There are several items on our sim with which I am well acquainted as far as performance stats (such as Fred, our Sandbox mascot). I know these items from week after week of testing sim operation speeds. And those items are all taking significantly more ms than they were 2-3 weeks ago. So what's going on folks?


Lex Neva added a comment - 17/Feb/08 09:39 AM
Several notes from my experience as a sim co-owner:
  • A big jump in the number of scripts (say from 3000 to 4800) could, in and of itself, account for the jump in Total Frame Time. Scripts take up a certain amount of Script Time regardless of whether they're doing anything. You can place a few hundred totally empty scripts that are doing absolutely nothing in a sim and see the Script Time (and Total Frame Time) go up significantly. It's completely reproducible.
  • I've never known the Active Scripts number to be wrong. I have known Top Scripts to be wrong. I wouldn't trust it as far as counting the number of scripts in the region... for one thing, it doesn't seem to account for all scripts, and for another, it doesn't seem to account for their full impact on Script Time, because the total sum of the scripts in Top Scripts doesn't come anywhere close to the Script Time shown in the stats panel. It's low by an order of magnitude.
  • It seems likely to me that someone dumped a whole bunch of scripts somewhere on your land. Do you rent? Unfortunately it's not so easy to find this kind of thing, especially if you're not in full control over the entire sim and what goes in it. I'd absolutely love a full listing of every single script in the region and its location!
  • Are you in the Havok 4 Beta?
  • There was an issue a few months back where all regions across the grid suddenly saw their Script Time significantly increase, sometimes even double. Turned out that LL had deployed a new simulator code release that had been compiled without the compiler's optimization options turned on. Perhaps something like that's going on now. However, I haven't seen any increase in my region's script time.

Gigs Taggart added a comment - 06/Mar/08 07:29 PM
MISC-975 may be related. I'm still working on a sim performance profile for the sim owner in question.

Sue Linden made changes - 13/Nov/08 11:03 AM
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