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Performance Counters: Difference between revisions

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* This is the preferred way we get at [[x86 timing|TSC]] (TSC has fallen out of favor, though)
* This is the preferred way we get at [[x86 timing|TSC]] (TSC has fallen out of favor, though)
* Collectors include [[oprofile]] and [[perf]].
* Collectors include [[oprofile]] and [[perf]].
{| border="1"
 
{| border="1" class="wikitable"
! Counter
! Counter
! Introduced
! Introduced
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| MACHINE_CLEARS.ASSIST_FUSION
| MACHINE_CLEARS.ASSIST_FUSION
| Core i7
| Core i7
| Number of macro-fused ops retired
| Number of macro-fusions performed
|-
|-
| LSD.UOPS
| LSD.UOPS
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|-
|-
|}
|}
[[Category: X86]]
[[Category: Hardware]]

Latest revision as of 03:14, 23 September 2019

Counter Introduced Description
MACHINE_CLEARS.ASSIST_FUSION Core i7 Number of macro-fusions performed
LSD.UOPS Core i7 Number of μops delivered by the Loop Stream Decoder