From the source
Meta used sched_ext to build a custom scheduling policy for the Ads service, resulting in a 28% reduction in ads retrieval stage tail latency, 3.28 MW power savings, and a 1.1% increase in ads ranked.
From the source
The result: a 28% reduction in ads retrieval stage tail(99th percentile) latency, 3.28 megawatts(MW) power saving, and a 1.1% increase in the number of ads ranked
engineering.fb.com
