what is garbagecollector in profiler??

what is garbagecollector is profiler?? i didnt find any info on it in the unity manual. my garbagecollector is really high what dos that mean

Garbage Collection is a general term in programming (see : http://en.wikipedia.org/wiki/Garbage_collection_%28computer_science%29). Not every language has it’s own garbage collection, but the ones you use for Unity do.

It simply does what it says, it collects “garbage”. “Garbage” are unused variables, objects, etc. When nothing refers to a certain variable or object anymore the garbage collector removes them.

A way to lessen its performance impact would be to do some garbage collection yourself by setting references to objects on “null” when you don’t use them anymore. You could also try to reuse variables and objects more than once.