Hey, On Mon, Apr 29, 2013 at 03:02:19PM -0700, Colin Cross wrote: > See the first patch in the series (which isn't available in the > archive yet, so I can't link to it). The short version is that It didn't arrive in my lkml folder either. Maybe vger is taking some time distributing emails. > Android goes through suspend/resume very often (every few seconds when > on a busy wifi network with the screen off), and a significant portion > of the energy used to go in and out of suspend is spent in the > freezer. This patch series takes the most common userspace sleep > points and converts them to PF_FREEZER_SKIP, which reduces the number > of context switches for every suspend or resume event on a > freshly-booted Android device from 1000 to 25, and reduces the time Ah, okay, so you're spreading PF_FREEZER_SKIP. When you post patches which touch the freezer can you please cc me and Oleg Nesterov <oleg@xxxxxxxxxx> (I'll ping him this time)? Freezer has been very subtly broken in various ways and many kthread users are still broken, so let's tread carefully. > spent freezing by a factor of 5. It will have a similar effect on a > non-Android system, although those generally don't care about > suspend/resume optimization. Yeah, if it's something which makes actual difference rather than "this seems to be a good idea" thing, sure, let's find a way. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
