everybody talks about the lag, but nobody ever ...

so, the subject is lag. the street talk is scripts can contribute to lag. okay.

but, actually, does anyone have a procedure handy for measuring the marginal contribution of a particular script to sim lag quantitatively? does anyone have a way of measuring lag?

sure, lag depends upon the client, and their context. but, independent of that, oughtn't there be a way to quantify it? then, oughtn't there be a way to measure it?

assuming there's a way to measure it, and assuming linearity,it seems to be you could go to a sandbox, measure some kind of baseline lag, rez up 40 prims all containing the script-under-test, start them, measure the lag again, take a difference, and divide by 40.

how naive is that?

You'd have to find someone who owns an Estate/island. There is an option to see how much of a hit a script puts on the server. As I don't have an island, I can't tell you exactly how it works, but I'm sure some people here know

That assumes that you're the only one in the sandbox. That and there may be caching issues where the performance hit isn't linear..

I've wondered about stuff like this, too. Dunno if it can be done but I'd like to see some llGetXXXPerfUsage type calls so people can measure how much resources their scripts are eating.

Ctrl shift 1

If you don't have a friendly estate manager around... you can go find a void sim, make sure it's empty, and use the stats bar. Attach your object with scripts so they'll run (you can't rez in a void sim)

Note, this will NOT give you numbers for all your scripts. There's a minimum load you can detect this way (although you could multiply up, adding multiple versions to your attachments) but it does give you some measure.

There are also other issues.

A script set to listen to everyone on channel 0 in an otherwise empty sim where you're not talking to yourself will still have some load, but it will be considerably less than the load of the same script in the middle of some busy club. The Listen event will be constantly triggered and processing, hence the higher load.

So... you can get some ideas of what's going on, but it's not 100%

Hopefully some day LL will see the value in adding llGetTopScripts(vector pos), parsed out to only return scripts on your land, even a little 512 lot!

Hmm isn't Top Scripts in the Estate Tools something like a process viewer in U*ix or Linux...i mean scripts are just running programs/threads..so why not add the CPU Time + usgae too to the Top Scripts .

Or even a Tool for all ppl (Simowners, Parcel Owners, etc) to show up how much the own scripts are eating up.

just my 2cents.

I'd love to be able to select an object and get a breakdown of all its script timings via a debug option.

Amen!