qlim Queue based speedlim The qlim object is similar to a combination of speedlim and jit.qball. In Jitter, most execution take places in the low priority queue to prevent drawing to the screen at interrupt. The speedlim object unfortunately places messages back in the scheduler for execution, and thus may result in a crash when used to temporally downsample streams of Jitter matrices if overdrive is turned on. The qlim object is an interrupt safe replacement for this and other tasks.

from the library : Jitter Format : External Environment : jitter commercial Max 4.x http://www.cycling74.com