Skip to content

redhat: configs: Disable FIE on arm

Jeremy Linton requested to merge jlinton/kernel-ark-busted:os-build-kill-fie into os-build

FIE intends to estimate cpu work for a given task more accurately. On an ACPI/CPPC machine, the code can utilize PCC mailboxes that trap to the firmware (which are all the CPPC machines at this point). Meaning the CPU overhead of this feature far outweighs any potential benefit.

The default is being changed upstream, along with some related code changes, but until the benefit is proven, it should be disabled in all fedora releases.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2012226

Signed-off-by: Jeremy Linton jeremy.linton@arm.com

Edited by Jeremy Linton

Merge request reports