Scripts

Most people know that CasperVend uses only one script in all its vendor units and dropboxes. But how important is this, really?

Script Time

A region runs at approximately 45 frames per second when it's not lagged. This allows roughly 22ms *total* script time per region.

CasperVend vendors run at roughly 0.001 - 0.002ms of script time per frame. This means you could theoretically have 11,000 of our vendors rezzed without experiencing lag.

Script Memory

Another factor is script memory. A simulator has 256mb of script memory, and each of our vendors uses 66kb. This means that we would run out of memory after 3971 vendors were rezzed, so that is our actual limit.

How many vendors can I run without causing lag?

We rezzed vendors from these companies and left them for 30 minutes (for the script time to settle). Results:

System	Script count (multivendors)	Script time	Script mem	Max # of vendors with no lag
HippoVend	10	0.016	655kb	400
Alika	3	0.002	197kb	1330
BSM	2	0.003	131kb	2001
HippoVend "Elite"	1	0.002	66kb	3971
CasperVend	1	0.001	66kb	3971

Holovendors & Rezzing

Certain types of operation are very taxing on sim resources. One of these operations is rezzing.

Because of that, and despite their efficient design, our HoloVend vendors cause significantly more lag than regular vendors, while they are being used. When idle, they don't cause much lag at all.

We don't recommend "temp rezzing" (zero-prim rezzing) under ANY circumstances. These will continually, 24/7, re-rez an object, and because the act of rezzing is one of the laggiest things you can EVER do on a sim/region, "temp rezzing" is one of the worst things you can do - and IS the reason many, many landlords ban the use of them on their sims/regions.

CasperVend Script Times

The table below has script time for the types various vending objects in CasperVend.

The "Active/Waiting" column simply means that the customer has interacted with the vendor (clicking for a menu, clicking a panel on a multi vendor, etc.) and the vendor is in the waiting period (rather than gone to sleep), waiting for what the customer may do next.

CasperVend Vendor Type	Script time (Idling/Sleeping)	Script time (Active/Waiting)	Script mem
CasperVend² Free/Premium	0.001	0.002	66kb
CasperVend² HoloVend	0.001	0.007	66kb

Your region

Of course, these numbers assume you have *no other scripts* rezzed on sim, but this is never the case. In order to properly calculate how many CasperVend vendors you can rez before you see any lag, go to:

World -> Region/Estate -> Debug -> Get Top Scripts

Refresh this a few times, and note the *maximum* number at the top, for example, mine says:

"539 scripts taking a total of 1.685ms."

Mutiply the script count by 66kb and you have the rough memory usage - in my case, it's 34496kb (or 33mb), so I have 223mb available to use - enough for around 3,500 CasperVend vendors. Subtract the script time from 22 and you have the amount of script time you have available to play with. In my case I have 20.315ms available, which is easily enough for the 3,500 vendors (it could support 20,000 of them).