forked from mirrors/linux
e985bf761d
Support both Python2 and Python3 in the stat-cpi.py script There may be differences in the ordering of output lines due to differences in dictionary ordering etc. However the format within lines should be unchanged. The use of 'from __future__' implies the minimum supported Python2 version is now v2.6 Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20190222230619.17887-13-tonyj@suse.de Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
# SPDX-License-Identifier: GPL-2.0
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from __future__ import print_function
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data = {}
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times = []
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threads = []
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cpus = []
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def get_key(time, event, cpu, thread):
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return "%d-%s-%d-%d" % (time, event, cpu, thread)
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def store_key(time, cpu, thread):
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if (time not in times):
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times.append(time)
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if (cpu not in cpus):
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cpus.append(cpu)
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if (thread not in threads):
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threads.append(thread)
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def store(time, event, cpu, thread, val, ena, run):
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#print("event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" %
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# (event, cpu, thread, time, val, ena, run))
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store_key(time, cpu, thread)
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key = get_key(time, event, cpu, thread)
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data[key] = [ val, ena, run]
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def get(time, event, cpu, thread):
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key = get_key(time, event, cpu, thread)
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return data[key][0]
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def stat__cycles_k(cpu, thread, time, val, ena, run):
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store(time, "cycles", cpu, thread, val, ena, run);
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def stat__instructions_k(cpu, thread, time, val, ena, run):
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store(time, "instructions", cpu, thread, val, ena, run);
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def stat__cycles_u(cpu, thread, time, val, ena, run):
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store(time, "cycles", cpu, thread, val, ena, run);
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def stat__instructions_u(cpu, thread, time, val, ena, run):
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store(time, "instructions", cpu, thread, val, ena, run);
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def stat__cycles(cpu, thread, time, val, ena, run):
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store(time, "cycles", cpu, thread, val, ena, run);
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def stat__instructions(cpu, thread, time, val, ena, run):
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store(time, "instructions", cpu, thread, val, ena, run);
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def stat__interval(time):
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for cpu in cpus:
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for thread in threads:
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cyc = get(time, "cycles", cpu, thread)
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ins = get(time, "instructions", cpu, thread)
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cpi = 0
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if ins != 0:
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cpi = cyc/float(ins)
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print("%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins))
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def trace_end():
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pass
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# XXX trace_end callback could be used as an alternative place
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# to compute same values as in the script above:
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#
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# for time in times:
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# for cpu in cpus:
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# for thread in threads:
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# cyc = get(time, "cycles", cpu, thread)
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# ins = get(time, "instructions", cpu, thread)
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#
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# if ins != 0:
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# cpi = cyc/float(ins)
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#
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# print("time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi))
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