LUA_GCSTOP

stops the garbage collector

restarts the garbage collector

performs a full garbage-collection cycle

returns the current amount of memory (in Kbytes) in use by Lua

returns the remainder of dividing the current amount of bytes of memory in use by Lua by 1024

performs an incremental step of garbage collection. The step "size" is controlled by data (larger values mean more steps) in a non-specified way. If you want to control the step size you must experimentally tune the value of data. The function returns 1 if the step finished a garbage-collection cycle

sets data as the new value for the pause of the collector. The function returns the previous value of the pause

sets data as the new value for the step multiplier of the collector. The function returns the previous value of the step multiplier.

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