llSetMemoryLimit

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/LSL

SetMemoryLimit

llSetMemoryLimit

Summary

Function: integer llSetMemoryLimit( integer limit );

0.0	Forced Delay
???	Energy

Request limit bytes to be reserved for this script.
Returns the boolean (an integer) TRUE if the memory limit was successfully set (or FALSE if not).

• integer

limit

Specification

This function's behavior is dependent upon the VM the script is using. Mono is the new VM, LSO is the old VM.

Mono

Sets the memory limit for the script.

• The memory limit can be set up to 64k.
• The memory limit can not be set lower than the memory currently in use by the script.
• All new scripts start with a limit of 64k
• Mono scripts compiled before this function was introduced continue to use the 64k limit.
• A lower limit will effect the amount of memory reported in the viewer UI and by llGetObjectDetails.
• The memory limit is not the amount of real memory actually used by the script, just the upper limit on it.

LSO

Has no effect on LSO scripts which will always use exactly 16k

Caveats

Mono

When n is too small, llSetMemoryLimit(n) is ignored and the memory limit is not changed

Examples

// Memory-walkthrough by Daemonika Nightfire (daemonika.nightfire)

integer limit = 20000; // <- bytes

Test()
{
    llSetText("Limited Memory " + (string)llGetMemoryLimit() +
              "\nUsed Memory " + (string)llGetUsedMemory() +
              "\nFree Memory " + (string)llGetFreeMemory(),<1,1,1>,1);
}

default
{
    state_entry()
    {
        llSetMemoryLimit(limit);
        
        llScriptProfiler(PROFILE_SCRIPT_MEMORY);
        Test();
        llScriptProfiler(PROFILE_NONE);
        
        llSay(0,"This script used at most " + (string)llGetSPMaxMemory() + " bytes of memory during Test.");
    }
}

// Result:
        
// Floating Text:
// Limited Memory 20000
// Used Memory 4972
// Free Memory 15100
        
// Chat:
// [05:11] Object: This script used at most 4972 bytes of memory during Test.

See Also

Functions

•	llScriptProfiler
•	llGetSPMaxMemory
•	llGetMemoryLimit
•	llGetFreeMemory
•	llGetUsedMemory
•	llGetObjectDetails

Deep Notes

History

Date of Release 10/08/2011

Signature
function integer llSetMemoryLimit( integer limit );