On Tue, Jan 13, 2009 at 5:54 PM, Timothy Pratley <timothyprat...@gmail.com> wrote: > > I'm not sure how to "cpu frequency set > to not change" or how significant that is on my results.
I was afraid that was too vague a reference, sorry. My laptop usually slows down the CPU when its idle or nearly so. Specifically, the linux kernel is using an "on demand" CPU frequency scaler. This is nice for nearly every context except trying to run benchmarks, in which case some runs of a test may be partially handled while the CPU is in a slow and cool mode (800 MHz), while the rest is in the fast and hot mode (2500 MHz), resulting in almost unusably divergent timing results. So when I remember to do so, I switch the kernel to using the "performance" CPU frequency scaler before running my tests, and back to "on demand" afterwards. --Chouser --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
