Front-End Bandwidth

Metric Description

This metric represents a fraction of slots during which CPU was stalled due to front-end bandwidth issues, such as inefficiencies in the instruction decoders or code restrictions for caching in the DSB (decoded uOps cache). In such cases, the front-end typically delivers a non-optimal amount of uOps to the back-end.

For more complete information about compiler optimizations, see our Optimization Notice.
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