•FP Events/Sec: SIR Event: trap
This is the total number of SIR true stalls (SWFA trap taken) observed per second.
•FP Events/Fop: zero flush
This is the number of flush to zero events that occur per
•FP Events/Fop: SIR Event: total
This is the ratio of all SIR stalls and total
•FP Events/Fop: SIR Event: stall
This is the ratio of SIR false stalls (stall only, no trap taken) and total
•FP Events: SIR Event: trap
This is the ratio of SIR true stalls (SWFA trap taken) and total
l1dcache Event Set
The l1dcache event set provides information on L1 data cache miss rates for read misses.
The L1 data cache (L1D cache) is special in that it does not handle all types of memory references. In particular, the L1D cache does not handle
If you use this event set, the default is to make the measurements irrespective of CPU operating state (that is, user, system, or interrupt states). By default, the idle state is not included in the measurement. You can use
•Limit measurement to a specific privilege level:
•Include idle:
•Exclude the interruption state:
•Only measure the interruption state:
The event per kinst (event per 1000 instructions) metrics are computed using all instructions retired. This includes nops, predicated off instructions, failed speculation and instructions and associated recovery code as well as the architecturally visible instruction. You can eliminate idle loops effects by using the
Metrics Available from this Measurement
The following metrics are available from this event set. These descriptions do not take into account any
The metrics are:
•Total - Misses per Sec
This is the total number of L1D cache misses per second.
•NON RSE - Misses per Sec
This is the number of
l1dcache Event Set 245