tools/perf/scripts/python/stat-cpi.py

   1 #!/usr/bin/env python
   2
   3 data    = {}
   4 times   = []
   5 threads = []
   6 cpus    = []
   7
   8 def get_key(time, event, cpu, thread):
   9     return "%d-%s-%d-%d" % (time, event, cpu, thread)
  10
  11 def store_key(time, cpu, thread):
  12     if (time not in times):
  13         times.append(time)
  14
  15     if (cpu not in cpus):
  16         cpus.append(cpu)
  17
  18     if (thread not in threads):
  19         threads.append(thread)
  20
  21 def store(time, event, cpu, thread, val, ena, run):
  22     #print "event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" % \
  23     #      (event, cpu, thread, time, val, ena, run)
  24
  25     store_key(time, cpu, thread)
  26     key = get_key(time, event, cpu, thread)
  27     data[key] = [ val, ena, run]
  28
  29 def get(time, event, cpu, thread):
  30     key = get_key(time, event, cpu, thread)
  31     return data[key][0]
  32
  33 def stat__cycles_k(cpu, thread, time, val, ena, run):
  34     store(time, "cycles", cpu, thread, val, ena, run);
  35
  36 def stat__instructions_k(cpu, thread, time, val, ena, run):
  37     store(time, "instructions", cpu, thread, val, ena, run);
  38
  39 def stat__cycles_u(cpu, thread, time, val, ena, run):
  40     store(time, "cycles", cpu, thread, val, ena, run);
  41
  42 def stat__instructions_u(cpu, thread, time, val, ena, run):
  43     store(time, "instructions", cpu, thread, val, ena, run);
  44
  45 def stat__cycles(cpu, thread, time, val, ena, run):
  46     store(time, "cycles", cpu, thread, val, ena, run);
  47
  48 def stat__instructions(cpu, thread, time, val, ena, run):
  49     store(time, "instructions", cpu, thread, val, ena, run);
  50
  51 def stat__interval(time):
  52     for cpu in cpus:
  53         for thread in threads:
  54             cyc = get(time, "cycles", cpu, thread)
  55             ins = get(time, "instructions", cpu, thread)
  56             cpi = 0
  57
  58             if ins != 0:
  59                 cpi = cyc/float(ins)
  60
  61             print "%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins)
  62
  63 def trace_end():
  64     pass
  65 # XXX trace_end callback could be used as an alternative place
  66 #     to compute same values as in the script above:
  67 #
  68 #    for time in times:
  69 #        for cpu in cpus:
  70 #            for thread in threads:
  71 #                cyc = get(time, "cycles", cpu, thread)
  72 #                ins = get(time, "instructions", cpu, thread)
  73 #
  74 #                if ins != 0:
  75 #                    cpi = cyc/float(ins)
  76 #
  77 #                print "time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi)