Page doesn't render properly ?

Intel architectural perfmon

This is a list of architected performance counter events for newer Intel family processors (Core1+). See Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 3B (Document 253669) Chapter 18 for architectural perfmon events.

NameDescriptionCounters usableUnit mask options
CPU_CLK_UNHALTED Clock cycles when not halted all
UNHALTED_REFERENCE_CYCLES Unhalted reference cycles all 0x01: No unit mask
INST_RETIRED number of instructions retired all
LLC_MISSES Last level cache demand requests from this core that missed the LLC all 0x41: No unit mask
LLC_REFS Last level cache demand requests from this core all 0x4f: No unit mask
BR_INST_RETIRED number of branch instructions retired all
BR_MISS_PRED_RETIRED number of mispredicted branches retired (precise) all
Bottlenecks occur in surprising places, so don't try to second guess and put in a speed hack until you've proven that's where the bottleneck is. - Rob Pike