gator profiling

hi When i download the git.linaro.org/git-ro/landing-teams/working/arm/kernel.git, there are branches relates to gator. I set up the enviroment at TC2 with gator and Dstream. I want to show the CPU frequencies of big and little clusters, so i add code in gator to get the frequency of the clusters. But it seems that gator wakes up in period and send out the message. So is there any way that make gator to wake up based on events of cpu frequency changing, and send out the message to Dstream?