Hi Andrew, the expected effect is to reduce processor wakeup latency from sleep (C-states). We are speaking of few hundreds of cycles reduction out of a several microseconds latency (determined by the hardware transition), so it is difficult to measure. Corrado On Fri, Jul 24, 2009 at 12:05 AM, Andrew Morton<akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > On Sun, 19 Jul 2009 16:59:46 +0200 > Corrado Zoccolo <czoccolo@xxxxxxxxx> wrote: > >> This patch moves the state residency accounting and statistics >> computation off the hot exit path. >> On exit, the need to recompute statistics is recorded, and new >> statistics will be computed when menu_select is called again. >> > > Was there any observed and/or measured effect as a result of this patch? > > If so, please send a description of that effect, thanks. > > -- __________________________________________________________________________ dott. Corrado Zoccolo mailto:czoccolo@xxxxxxxxx PhD - Department of Computer Science - University of Pisa, Italy -------------------------------------------------------------------------- _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
