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

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Diff markup

Differences between /tools/perf/scripts/python/stat-cpi.py (Version linux-6.12-rc7) and /tools/perf/scripts/python/stat-cpi.py (Version linux-6.4.16)


  1 # SPDX-License-Identifier: GPL-2.0                  1 # SPDX-License-Identifier: GPL-2.0
  2                                                     2 
  3 from __future__ import print_function               3 from __future__ import print_function
  4                                                     4 
  5 data    = {}                                        5 data    = {}
  6 times   = []                                        6 times   = []
  7 threads = []                                        7 threads = []
  8 cpus    = []                                        8 cpus    = []
  9                                                     9 
 10 def get_key(time, event, cpu, thread):             10 def get_key(time, event, cpu, thread):
 11     return "%d-%s-%d-%d" % (time, event, cpu,      11     return "%d-%s-%d-%d" % (time, event, cpu, thread)
 12                                                    12 
 13 def store_key(time, cpu, thread):                  13 def store_key(time, cpu, thread):
 14     if (time not in times):                        14     if (time not in times):
 15         times.append(time)                         15         times.append(time)
 16                                                    16 
 17     if (cpu not in cpus):                          17     if (cpu not in cpus):
 18         cpus.append(cpu)                           18         cpus.append(cpu)
 19                                                    19 
 20     if (thread not in threads):                    20     if (thread not in threads):
 21         threads.append(thread)                     21         threads.append(thread)
 22                                                    22 
 23 def store(time, event, cpu, thread, val, ena,      23 def store(time, event, cpu, thread, val, ena, run):
 24     #print("event %s cpu %d, thread %d, time %     24     #print("event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" %
 25     #      (event, cpu, thread, time, val, ena     25     #      (event, cpu, thread, time, val, ena, run))
 26                                                    26 
 27     store_key(time, cpu, thread)                   27     store_key(time, cpu, thread)
 28     key = get_key(time, event, cpu, thread)        28     key = get_key(time, event, cpu, thread)
 29     data[key] = [ val, ena, run]                   29     data[key] = [ val, ena, run]
 30                                                    30 
 31 def get(time, event, cpu, thread):                 31 def get(time, event, cpu, thread):
 32     key = get_key(time, event, cpu, thread)        32     key = get_key(time, event, cpu, thread)
 33     return data[key][0]                            33     return data[key][0]
 34                                                    34 
 35 def stat__cycles_k(cpu, thread, time, val, ena     35 def stat__cycles_k(cpu, thread, time, val, ena, run):
 36     store(time, "cycles", cpu, thread, val, en     36     store(time, "cycles", cpu, thread, val, ena, run);
 37                                                    37 
 38 def stat__instructions_k(cpu, thread, time, va     38 def stat__instructions_k(cpu, thread, time, val, ena, run):
 39     store(time, "instructions", cpu, thread, v     39     store(time, "instructions", cpu, thread, val, ena, run);
 40                                                    40 
 41 def stat__cycles_u(cpu, thread, time, val, ena     41 def stat__cycles_u(cpu, thread, time, val, ena, run):
 42     store(time, "cycles", cpu, thread, val, en     42     store(time, "cycles", cpu, thread, val, ena, run);
 43                                                    43 
 44 def stat__instructions_u(cpu, thread, time, va     44 def stat__instructions_u(cpu, thread, time, val, ena, run):
 45     store(time, "instructions", cpu, thread, v     45     store(time, "instructions", cpu, thread, val, ena, run);
 46                                                    46 
 47 def stat__cycles(cpu, thread, time, val, ena,      47 def stat__cycles(cpu, thread, time, val, ena, run):
 48     store(time, "cycles", cpu, thread, val, en     48     store(time, "cycles", cpu, thread, val, ena, run);
 49                                                    49 
 50 def stat__instructions(cpu, thread, time, val,     50 def stat__instructions(cpu, thread, time, val, ena, run):
 51     store(time, "instructions", cpu, thread, v     51     store(time, "instructions", cpu, thread, val, ena, run);
 52                                                    52 
 53 def stat__interval(time):                          53 def stat__interval(time):
 54     for cpu in cpus:                               54     for cpu in cpus:
 55         for thread in threads:                     55         for thread in threads:
 56             cyc = get(time, "cycles", cpu, thr     56             cyc = get(time, "cycles", cpu, thread)
 57             ins = get(time, "instructions", cp     57             ins = get(time, "instructions", cpu, thread)
 58             cpi = 0                                58             cpi = 0
 59                                                    59 
 60             if ins != 0:                           60             if ins != 0:
 61                 cpi = cyc/float(ins)               61                 cpi = cyc/float(ins)
 62                                                    62 
 63             print("%15f: cpu %d, thread %d ->      63             print("%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins))
 64                                                    64 
 65 def trace_end():                                   65 def trace_end():
 66     pass                                           66     pass
 67 # XXX trace_end callback could be used as an a     67 # XXX trace_end callback could be used as an alternative place
 68 #     to compute same values as in the script      68 #     to compute same values as in the script above:
 69 #                                                  69 #
 70 #    for time in times:                            70 #    for time in times:
 71 #        for cpu in cpus:                          71 #        for cpu in cpus:
 72 #            for thread in threads:                72 #            for thread in threads:
 73 #                cyc = get(time, "cycles", cpu     73 #                cyc = get(time, "cycles", cpu, thread)
 74 #                ins = get(time, "instructions     74 #                ins = get(time, "instructions", cpu, thread)
 75 #                                                  75 #
 76 #                if ins != 0:                      76 #                if ins != 0:
 77 #                    cpi = cyc/float(ins)          77 #                    cpi = cyc/float(ins)
 78 #                                                  78 #
 79 #                print("time %.9f, cpu %d, thr     79 #                print("time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi))
                                                      

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