projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b8a1962d | 1 | #!/usr/bin/env python |
| b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
| b8a1962d JO |
3 | |
| 4 | data = {} | |
| 5 | times = [] | |
| 6 | threads = [] | |
| 7 | cpus = [] | |
| 8 | ||
| 9 | def get_key(time, event, cpu, thread): | |
| 10 | return "%d-%s-%d-%d" % (time, event, cpu, thread) | |
| 11 | ||
| 12 | def store_key(time, cpu, thread): | |
| 13 | if (time not in times): | |
| 14 | times.append(time) | |
| 15 | ||
| 16 | if (cpu not in cpus): | |
| 17 | cpus.append(cpu) | |
| 18 | ||
| 19 | if (thread not in threads): | |
| 20 | threads.append(thread) | |
| 21 | ||
| 22 | def store(time, event, cpu, thread, val, ena, run): | |
| 23 | #print "event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" % \ | |
| 24 | # (event, cpu, thread, time, val, ena, run) | |
| 25 | ||
| 26 | store_key(time, cpu, thread) | |
| 27 | key = get_key(time, event, cpu, thread) | |
| 28 | data[key] = [ val, ena, run] | |
| 29 | ||
| 30 | def get(time, event, cpu, thread): | |
| 31 | key = get_key(time, event, cpu, thread) | |
| 32 | return data[key][0] | |
| 33 | ||
| 34 | def stat__cycles_k(cpu, thread, time, val, ena, run): | |
| 35 | store(time, "cycles", cpu, thread, val, ena, run); | |
| 36 | ||
| 37 | def stat__instructions_k(cpu, thread, time, val, ena, run): | |
| 38 | store(time, "instructions", cpu, thread, val, ena, run); | |
| 39 | ||
| 40 | def stat__cycles_u(cpu, thread, time, val, ena, run): | |
| 41 | store(time, "cycles", cpu, thread, val, ena, run); | |
| 42 | ||
| 43 | def stat__instructions_u(cpu, thread, time, val, ena, run): | |
| 44 | store(time, "instructions", cpu, thread, val, ena, run); | |
| 45 | ||
| 46 | def stat__cycles(cpu, thread, time, val, ena, run): | |
| 47 | store(time, "cycles", cpu, thread, val, ena, run); | |
| 48 | ||
| 49 | def stat__instructions(cpu, thread, time, val, ena, run): | |
| 50 | store(time, "instructions", cpu, thread, val, ena, run); | |
| 51 | ||
| 52 | def stat__interval(time): | |
| 53 | for cpu in cpus: | |
| 54 | for thread in threads: | |
| 55 | cyc = get(time, "cycles", cpu, thread) | |
| 56 | ins = get(time, "instructions", cpu, thread) | |
| 57 | cpi = 0 | |
| 58 | ||
| 59 | if ins != 0: | |
| 60 | cpi = cyc/float(ins) | |
| 61 | ||
| 62 | print "%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins) | |
| 63 | ||
| 64 | def trace_end(): | |
| 65 | pass | |
| 66 | # XXX trace_end callback could be used as an alternative place | |
| 67 | # to compute same values as in the script above: | |
| 68 | # | |
| 69 | # for time in times: | |
| 70 | # for cpu in cpus: | |
| 71 | # for thread in threads: | |
| 72 | # cyc = get(time, "cycles", cpu, thread) | |
| 73 | # ins = get(time, "instructions", cpu, thread) | |
| 74 | # | |
| 75 | # if ins != 0: | |
| 76 | # cpi = cyc/float(ins) | |
| 77 | # | |
| 78 | # print "time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi) |