Daytripper: Difference between revisions
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==Loop Stream Detector== | ==Loop Stream Detector== | ||
[[File:LoopStreamDetector.jpg|thumb|Nehalem's LSD bypasses instruction decoding altogether.]] | [[File:LoopStreamDetector.jpg|thumb|Nehalem's LSD bypasses instruction decoding altogether.]] | ||
* Introduced in Conroe, | * Introduced in Conroe (followed instruction fetch, supporting 18 x86 instructions) | ||
* Improved in [[Nehalem]] (moved after decode, caching 28 decoded μops) | |||
* Lives in the branch prediction unit | * Lives in the branch prediction unit | ||
* LSD.UOPS: [[Performance Counters|performance counter]] providing the number of μops delivered by the LSD (introduced on Core i7) | * LSD.UOPS: [[Performance Counters|performance counter]] providing the number of μops delivered by the LSD (introduced on Core i7) | ||