New IOWait Boosting Patches For Intel P-State, Schedutil

Linux power management and ACPI maintainer Rafael Wysocki has published a set of new "iowait boost" patches for P-State and Schedutil that he's looking to see benchmarked by interested parties.

If you didn't read the article about the IOWait Boost patches from a few weeks ago, see P-State Algorithm Change, Schedutil IOWait Boosting.

With the four patches published on Friday, there is iowait boost support for the Intel P-State scaling driver and CPUFreq's Schedutil governor.

The four patches can be found on the kernel mailing list. I'll try to find the time this weekend to patch a test kernel and see how these patches are doing and if they affect the performance for any of our workloads of interest. The algorithm change for P-State should be particularly interesting.