# Core 2 possible unit masks # name:zero type:mandatory default:0x0 0x0 No unit mask #name:one type:mandatory default:0x1 # 0x1 No unit mask name:two type:mandatory default:0x2 0x2 No unit mask name:x0f type:mandatory default:0xf 0xf No unit mask name:x10 type:mandatory default:0x10 0x10 No unit mask #name:x20 type:mandatory default:0x20 # 0x20 No unit mask #name:x40 type:mandatory default:0x40 # 0x40 No unit mask name:x41 type:mandatory default:0x41 0x41 No unit mask name:x4f type:mandatory default:0x4f 0x4f No unit mask name:xc0 type:mandatory default:0xc0 0xc0 No unit mask name:nonhlt type:exclusive default:0x0 0x0 Unhalted core cycles 0x1 Unhalted bus cycles 0x2 Unhalted bus cycles of this core while the other core is halted name:mesi type:bitmask default:0x0f 0x08 (M)ESI: Modified 0x04 M(E)SI: Exclusive 0x02 ME(S)I: Shared 0x01 MES(I): Invalid name:sse_prefetch type:exclusive default:0x0 0x00 prefetch NTA instructions executed. 0x01 prefetch T1 instructions executed. 0x02 prefetch T1 and T2 instructions executed. 0x03 SSE weakly-ordered stores name:simd_instr_type_exec type:bitmask default:0x3f 0x01 SIMD packed multiplies 0x02 SIMD packed shifts 0x04 SIMD pack operations 0x08 SIMD unpack operations 0x10 SIMD packed logical 0x20 SIMD packed arithmetic 0x3f all of the above name:mmx_trans type:bitmask default:0x3 0x01 float->MMX transitions 0x02 MMX->float transitions name:sse_miss type:exclusive default:0x0 0x00 PREFETCHNTA 0x01 PREFETCHT0 0x02 PREFETCHT1/PREFETCHT2 name:load_block type:bitmask default:0x3e 0x02 extra: STA Loads blocked by a preceding store with unknown address. 0x04 extra: STD Loads blocked by a preceding store with unknown data. 0x08 extra: OVERLAP_STORE Loads that partially overlap an earlier store, or 4K aliased with a previous store. 0x10 extra: UNTIL_RETIRE Loads blocked until retirement. 0x20 extra: L1D Loads blocked by the L1 data cache. name:store_block type:bitmask default:0x0b 0x01 extra: SB_DRAIN_CYCLES Cycles while stores are blocked due to store buffer drain. 0x02 extra: ORDER Cycles while store is waiting for a preceding store to be globally observed. 0x08 extra: NOOP A store is blocked due to a conflict with an external or internal snoop. name:dtlb_miss type:bitmask default:0x0f 0x01 extra: ANY Memory accesses that missed the DTLB. 0x02 extra: MISS_LD DTLB misses due to load operations. 0x04 extra: L0_MISS_LD L0 DTLB misses due to load operations. 0x08 extra: MISS_ST TLB misses due to store operations. name:memory_dis type:exclusive default:0x01 0x01 extra: RESET Memory disambiguation reset cycles. 0x02 extra: SUCCESS Number of loads that were successfully disambiguated. name:page_walks type:exclusive default:0x02 0x01 extra: COUNT Number of page-walks executed. 0x02 extra: CYCLES Duration of page-walks in core cycles. name:delayed_bypass type:exclusive default:0x00 0x00 extra: FP Delayed bypass to FP operation. 0x01 extra: SIMD Delayed bypass to SIMD operation. 0x02 extra: LOAD Delayed bypass to load operation. name:core type:exclusive default:0x40 0xc0 All cores 0x40 This core name:core_prefetch type:bitmask default:0x70 0xc0 core: all cores 0x40 core: this core 0x30 prefetch: all inclusive 0x10 prefetch: Hardware prefetch only 0x00 prefetch: exclude hardware prefetch name:core_mesi type:bitmask default:0x4f 0xc0 core: all cores 0x40 core: this core 0x08 (M)ESI: Modified 0x04 M(E)SI: Exclusive 0x02 ME(S)I: Shared 0x01 MES(I): Invalid name:core_prefetch_mesi type:bitmask default:0x7f 0xc0 core: all cores 0x40 core: this core 0x30 prefetch: all inclusive 0x10 prefetch: Hardware prefetch only 0x00 prefetch: exclude hardware prefetch 0x08 (M)ESI: Modified 0x04 M(E)SI: Exclusive 0x02 ME(S)I: Shared 0x01 MES(I): Invalid name:l1d_split type:exclusive default:0x1 0x1 split loads 0x2 split stores name:bus_agents type:exclusive default:0x00 0x00 this agent 0x20 include all agents name:core_and_bus_agents type:bitmask default:0x40 0xc0 core: all cores 0x40 core: this core 0x00 bus: this agent 0x20 bus: include all agents name:bus_agents_and_snoop type:bitmask default:0x0b 0x00 bus: this agent 0x20 bus: include all agents 0x08 snoop: HITM snoops 0x02 snoop: HIT snoops 0x01 snoop: CLEAN snoops name:core_and_snoop type:bitmask default:0x40 0xc0 core: all cores 0x40 core: this core 0x01 snoop: CMP2I snoops 0x02 snoop: CMP2S snoops name:itlb_miss type:bitmask default:0x12 0x02 ITLB small page misses 0x10 ITLB large page misses 0x40 ITLB flushes name:macro_insts type:bitmask default:0x09 0x01 Instructions decoded 0x08 CISC Instructions decoded name:esp type:bitmask default:0x01 0x01 ESP register content synchronizations 0x02 ESP register automatic additions name:inst_retired type:bitmask default:0x00 0x00 extra: Any 0x01 extra: Loads 0x02 extra: Stores 0x04 extra: Other name:x87_ops_retired type:exclusive default:0xfe 0x01 FXCH instructions retired 0xfe Retired floating-point computational operations (precise) name:uops_retired type:bitmask default:0x0f 0x01 Fused load+op or load+indirect branch retired 0x02 Fused store address + data retired 0x04 Retired instruction pairs fused into one micro-op 0x07 Fused micro-ops retired 0x08 Non-fused micro-ops retired 0x0f Micro-ops retired name:machine_nukes type:bitmask default:0x05 0x01 Self-Modifying Code detected 0x04 Execution pipeline restart due to memory ordering conflict or memory disambiguation misprediction name:br_inst_retired type:bitmask default:0xa 0x01 predicted not-taken 0x02 mispredicted not-taken 0x04 predicted taken 0x08 mispredicted taken name:cycles_int_masked type:exclusive default:0x02 0x01 Interrupts disabled 0x02 Interrupts pending and disabled name:simd_inst_retired type:bitmask default:0x1f 0x01 Retired SSE packed-single instructions 0x02 Retired SSE scalar-single instructions 0x04 Retired SSE2 packed-double instructions 0x08 Retired SSE2 scalar-double instructions 0x10 Retired SSE2 vector integer instructions 0x1f Retired Streaming SIMD instructions (precise event) name:simd_comp_inst_retired type:bitmask default:0xf 0x01 Retired computational SSE packed-single instructions 0x02 Retired computational SSE scalar-single instructions 0x04 Retired computational SSE2 packed-double instructions 0x08 Retired computational SSE2 scalar-double instructions name:mem_load_retired type:exclusive default:0x01 0x01 Retired loads that miss the L1 data cache (precise event) 0x02 L1 data cache line missed by retired loads (precise event) 0x04 Retired loads that miss the L2 cache (precise event) 0x08 L2 cache line missed by retired loads (precise event) 0x10 Retired loads that miss the DTLB (precise event) name:rat_stalls type:bitmask default:0xf 0x01 ROB read port 0x02 Partial register 0x04 Flag 0x08 FPU status word 0x0f All RAT name:seg_regs type:bitmask default:0x0f 0x01 extra: ES 0x02 extra: DS 0x04 extra: FS 0x08 extra: GS name:resource_stalls type:bitmask default:0x0f 0x01 when the ROB is full 0x02 during which the RS is full 0x04 during which the pipeline has exceeded the load or store limit or is waiting to commit all stores 0x08 due to FPU control word write 0x10 due to branch misprediction