1同行回答
power的trace，导出为curt后，可以看到如下信息，可以参考。
Processor Summary processor number 1
---------------------------------------
processing percent percent
total time total time busy time
(msec) (incl. idle) (excl. idle) processing category
=========== =========== =========== ===================
269.85 32.33 32.39 APPLICATION
522.43 62.60 62.71 SYSCALL
9.05 1.08 1.09 HCALL
2.25 0.27 0.27 KPROC (excluding IDLE and NFS)
0.00 0.00 0.00 NFS
19.55 2.34 2.35 FLIH
7.12 0.85 0.85 SLIH
2.82 0.34 0.34 DISPATCH (all procs. incl. IDLE)
0.37 0.04 0.04 IDLE DISPATCH (only IDLE proc.)
----------- ---------- -------
833.07 99.82 100.00 CPU(s) busy time
1.51 0.18 IDLE
----------- ----------
834.58 TOTAL
Avg. Thread Affinity = 0.60
Total number of process dispatches = 903
Total number of idle dispatches = 266
Total Physical CPU time (msec) = 838.58
Physical CPU percentage = 96.20
Physical processor affinity = 0.925000
Dispatch Histogram for processor (PHYSICAL CPUid : times_dispatched).
PHYSICAL CPU 25 : 6
PHYSICAL CPU 45 : 1
PHYSICAL CPU 113 : 17
PHYSICAL CPU 117 : 56
Total number of preemptions = 80
Total number of H_CEDE = 5324372 with preeemption = 69
Total number of H_CONFER = 41 with preeemption = 5
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