Linux Fixes AMD Ryzen AI 9 HX 370 Regression Due To Cache Aware Scheduling

{"#cache-aware-scheduling":"Cache Aware Scheduling was found to cause performance issues on the AMD Ryzen AI 9 HX 370, a laptop with 12 cores made up of four Zen 5 cores and eight Zen 5C cores. The Zen 5C cores have only half the L3 cache size of the larger cores, leading to a regression in performance.","#regression":"The regression was reported in August, and the fix was merged into the Linux kernel on October 26, 2026. The fix ensures that tasks are moved to the highest priority CPU, rather than the smaller cores, which can lead to better performance.","#zen5c":"The Zen 5C cores, which have only half the L3 cache size of the larger cores, are a key factor in the performance issues. The fix addresses this by prioritizing asym packing over LLC balancing."}