2026-01-21 18:59:54 +08:00
[
{
2026-01-29 22:25:33 +08:00
"BriefDescription" : "Unhalted core cycles when the thread is in ring 0" ,
2026-01-21 18:59:54 +08:00
"EventCode" : "0x5C" ,
"EventName" : "CPL_CYCLES.RING0" ,
2026-01-29 22:25:33 +08:00
"PublicDescription" : "This event counts the unhalted core cycles during which the thread is in the ring 0 privileged mode." ,
2026-01-21 18:59:54 +08:00
"SampleAfterValue" : "2000003" ,
2026-01-29 22:25:33 +08:00
"UMask" : "0x1"
2026-01-21 18:59:54 +08:00
} ,
{
2026-01-29 22:25:33 +08:00
"BriefDescription" : "Number of intervals between processor halts while thread is in ring 0" ,
"CounterMask" : "1" ,
2026-01-21 18:59:54 +08:00
"EdgeDetect" : "1" ,
2026-01-29 22:25:33 +08:00
"EventCode" : "0x5C" ,
2026-01-21 18:59:54 +08:00
"EventName" : "CPL_CYCLES.RING0_TRANS" ,
2026-01-29 22:25:33 +08:00
"PublicDescription" : "This event counts when there is a transition from ring 1,2 or 3 to ring0." ,
2026-01-21 18:59:54 +08:00
"SampleAfterValue" : "100007" ,
2026-01-29 22:25:33 +08:00
"UMask" : "0x1"
2026-01-21 18:59:54 +08:00
} ,
{
2026-01-29 22:25:33 +08:00
"BriefDescription" : "Unhalted core cycles when thread is in rings 1, 2, or 3" ,
2026-01-21 18:59:54 +08:00
"EventCode" : "0x5C" ,
"EventName" : "CPL_CYCLES.RING123" ,
2026-01-29 22:25:33 +08:00
"PublicDescription" : "This event counts unhalted core cycles during which the thread is in rings 1, 2, or 3." ,
2026-01-21 18:59:54 +08:00
"SampleAfterValue" : "2000003" ,
2026-01-29 22:25:33 +08:00
"UMask" : "0x2"
2026-01-21 18:59:54 +08:00
} ,
{
2026-01-29 22:25:33 +08:00
"BriefDescription" : "Cycles when L1 and L2 are locked due to UC or split lock" ,
2026-01-21 18:59:54 +08:00
"EventCode" : "0x63" ,
"EventName" : "LOCK_CYCLES.SPLIT_LOCK_UC_LOCK_DURATION" ,
2026-01-29 22:25:33 +08:00
"PublicDescription" : "This event counts cycles in which the L1 and L2 are locked due to a UC lock or split lock. A lock is asserted in case of locked memory access, due to noncacheable memory, locked operation that spans two cache lines, or a page walk from the noncacheable page table. L1D and L2 locks have a very high performance penalty and it is highly recommended to avoid such access." ,
2026-01-21 18:59:54 +08:00
"SampleAfterValue" : "2000003" ,
2026-01-29 22:25:33 +08:00
"UMask" : "0x1"
2026-01-21 18:59:54 +08:00
}
2026-01-29 22:25:33 +08:00
]