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authorMauro Carvalho Chehab <[email protected]>2016-01-25 07:17:10 -0200
committerMauro Carvalho Chehab <[email protected]>2016-01-25 07:17:10 -0200
commit34bbea91125cc2c0e25fe1a52a57af3260666718 (patch)
treeb3962fe1f8f8fe4c3fd95cd91c8b970818f7a044 /tools/perf/scripts/python
parent768acf46e1320d6c41ed1b7c4952bab41c1cde79 (diff)
parent92e963f50fc74041b5e9e744c330dca48e04f08d (diff)
Merge tag 'v4.5-rc1' into patchwork
Linux 4.5-rc1 * tag 'v4.5-rc1': (11309 commits) Linux 4.5-rc1 ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: Combine multiple telemetry entries intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs vmstat: Remove BUG_ON from vmstat_update MIPS: zboot: Add support for serial debug using the PROM MIPS: zboot: Avoid useless rebuilds MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function MIPS: bcm963xx: Update bcm_tag field image_sequence MIPS: bcm963xx: Move extended flash address to bcm_tag header file MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure MIPS: bcm63xx: nvram: Use nvram structure definition from header file MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure MAINTAINERS: Add KVM for MIPS entry MIPS: KVM: Add missing newline to kvm_err() MIPS: Move KVM specific opcodes into asm/inst.h MIPS: KVM: Use cacheops.h definitions MIPS: Break down cacheops.h definitions MIPS: Use EXCCODE_ constants with set_except_vector() ...
Diffstat (limited to 'tools/perf/scripts/python')
-rw-r--r--tools/perf/scripts/python/stat-cpi.py77
1 files changed, 77 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/stat-cpi.py b/tools/perf/scripts/python/stat-cpi.py
new file mode 100644
index 000000000000..8b60f343dd07
--- /dev/null
+++ b/tools/perf/scripts/python/stat-cpi.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+
+data = {}
+times = []
+threads = []
+cpus = []
+
+def get_key(time, event, cpu, thread):
+ return "%d-%s-%d-%d" % (time, event, cpu, thread)
+
+def store_key(time, cpu, thread):
+ if (time not in times):
+ times.append(time)
+
+ if (cpu not in cpus):
+ cpus.append(cpu)
+
+ if (thread not in threads):
+ threads.append(thread)
+
+def store(time, event, cpu, thread, val, ena, run):
+ #print "event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" % \
+ # (event, cpu, thread, time, val, ena, run)
+
+ store_key(time, cpu, thread)
+ key = get_key(time, event, cpu, thread)
+ data[key] = [ val, ena, run]
+
+def get(time, event, cpu, thread):
+ key = get_key(time, event, cpu, thread)
+ return data[key][0]
+
+def stat__cycles_k(cpu, thread, time, val, ena, run):
+ store(time, "cycles", cpu, thread, val, ena, run);
+
+def stat__instructions_k(cpu, thread, time, val, ena, run):
+ store(time, "instructions", cpu, thread, val, ena, run);
+
+def stat__cycles_u(cpu, thread, time, val, ena, run):
+ store(time, "cycles", cpu, thread, val, ena, run);
+
+def stat__instructions_u(cpu, thread, time, val, ena, run):
+ store(time, "instructions", cpu, thread, val, ena, run);
+
+def stat__cycles(cpu, thread, time, val, ena, run):
+ store(time, "cycles", cpu, thread, val, ena, run);
+
+def stat__instructions(cpu, thread, time, val, ena, run):
+ store(time, "instructions", cpu, thread, val, ena, run);
+
+def stat__interval(time):
+ for cpu in cpus:
+ for thread in threads:
+ cyc = get(time, "cycles", cpu, thread)
+ ins = get(time, "instructions", cpu, thread)
+ cpi = 0
+
+ if ins != 0:
+ cpi = cyc/float(ins)
+
+ print "%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins)
+
+def trace_end():
+ pass
+# XXX trace_end callback could be used as an alternative place
+# to compute same values as in the script above:
+#
+# for time in times:
+# for cpu in cpus:
+# for thread in threads:
+# cyc = get(time, "cycles", cpu, thread)
+# ins = get(time, "instructions", cpu, thread)
+#
+# if ins != 0:
+# cpi = cyc/float(ins)
+#
+# print "time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi)