Hi, all, The resume process can be split into 3 parts, BIOS resume time, kernel resume time and X/application resume time. And device resume takes most of the kernel resume time. this patch set introduces a new mechanism to resume device in parallel which can reduce the device resume time a lot. In this proposal, some devices can create its own workqueue for parallel resume. And for all the other devices that depends on this device, their resume methods are queued in the same workqueue. And we flush all the workqueues before resuming X/applications. As the devices vary from different platforms. it's hard to give an exact number of how much time it can reduce. Here are some of my test results: 1. eeepc901, kernel resume time can be reduced from about 2.1 seconds to 1.6 seconds. 2. a SantaRosa testbox, kernel resume time can be reduced from about 3.5s to 2s. please review this patch. Any comments are welcome. :) thanks, rui -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
