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License: GNU General Public License v2.0
Introduction ------------ The purpose of idlestat is to measure how long we have been in the different idle and operating states. Idlestat uses kernel's FTRACE function to monitor and capture C-state and P-state transitions of CPUs over a time interval. It extracts the following information from trace file: - Times when CPUs entered and exited a certain C-state - Times when CPUs entered and exited a certain P-state - Raised IRQs Following a successful run, idlestat calculates and reports the following information: - Total, average, minimum and maximum time spent in each C-state, per-CPU. - Total, average, minimum and maximum time spent in each P-state, per-CPU. - Total, average, minimum and maximum time during which all CPUs in a cluster were in the same C-state, per-cluster. - Number of times a certain IRQ caused a CPU to exit idle state, per-CPU and per-IRQ Requirements ------------ 1. It must be run as root in order to access /sys/kernel/debug. 2. It requires tracing to be enabled in the kernel Help ---- ./idlestat -h will show all the options Example Usage ------------- Trace mode: sudo ./idlestat --trace -f /tmp/mytrace -t 10 Reporting mode (/tmp/mytrace already contains traces): sudo ./idlestat --import -f /tmp/mytrace Trace mode with workload (e.g. sleep, cyclictest): sudo ./idlestat --trace -f /tmp/mytrace -t 10 -- /bin/sleep 10 sudo ./idlestat --trace -f /tmp/myoutput -t 10 -- cyclictest -t 4 -i 2000 -q -D 5 Selective trace output sudo ./idlestate --import -f /tmp/mytrace -w sudo ./idlestate --import -f /tmp/mytrace -c -p sudo ./idlestate --import -f /tmp/mytrace -p -w
I can't run this tool, it always return "Report style default does not exist":
idlestat --trace -f /data/local/tmp/mytrace -t 10
Report style default does not exist
I use rt-app simulating the load of cpu。
the configure file for rt-app as following
{
"tasks": {
"thread0": {
"instance": 1,
"loop": -1,
"run": 500,
"sleep": 500,
"cpus":[7]
}
},
"global": {
"duration": 20,
"calibration": "CPU0",
"default_policy": "SCHED_OTHER",
"pi_enabled": false,
"lock_pages": false,
"logdir": "./",
"log_basename": "rt-app-test",
"gnuplot": true
}
}
just run one thread on core7 and 500 usec loop 500 usec sleep up to 20 seconds
the commnd to excute idlestat as following
./idlestat --trace -f ./trace.log -t 20 -p -c -w -o ./report.log -- ./rt-app ./test.json
the trace file as following
idlestat version = 0.5
cpus=8
clusterA:
core0
cpu0
core1
cpu1
core2
cpu2
core3
cpu3
clusterB:
core0
cpu4
core1
cpu5
core2
cpu6
core3
cpu7
cpuid 0:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
cpuid 1:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
cpuid 2:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
cpuid 3:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
cpuid 4:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
cpuid 5:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
cpuid 6:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
cpuid 7:
WFI
1
core_pd
2500
cluster_pd
3000
deep_sleep
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
(null)
-1
idlestat-4483 [000] .... 181.981698: cpu_frequency: state=768000 cpu_id=0
idlestat-4483 [001] .... 181.981698: cpu_frequency: state=768000 cpu_id=1
idlestat-4483 [002] .... 181.981698: cpu_frequency: state=768000 cpu_id=2
idlestat-4483 [003] .... 181.981698: cpu_frequency: state=768000 cpu_id=3
idlestat-4483 [004] .... 181.981698: cpu_frequency: state=1650000 cpu_id=4
idlestat-4483 [005] .... 181.981698: cpu_frequency: state=1650000 cpu_id=5
idlestat-4483 [006] .... 181.981698: cpu_frequency: state=1650000 cpu_id=6
idlestat-4483 [007] .... 181.981698: cpu_frequency: state=1650000 cpu_id=7
-0 [001] dn.2 181.984866: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 181.984885: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 181.985267: cpu_idle: state=2 cpu_id=1
-0 [003] dn.2 181.986745: cpu_idle: state=4294967295 cpu_id=3
-0 [003] dn.2 181.986755: ipi_entry: (Rescheduling interrupts)
-0 [003] d..2 181.986889: cpu_idle: state=2 cpu_id=3
-0 [004] dn.2 181.987655: cpu_idle: state=4294967295 cpu_id=4
-0 [004] dn.2 181.987668: ipi_entry: (Rescheduling interrupts)
-0 [004] d..2 181.987802: cpu_idle: state=2 cpu_id=4
-0 [005] dn.2 181.992477: cpu_idle: state=4294967295 cpu_id=5
-0 [005] dn.2 181.992490: ipi_entry: (Rescheduling interrupts)
-0 [005] d..2 181.992608: cpu_idle: state=2 cpu_id=5
-0 [005] dn.2 182.004797: cpu_idle: state=4294967295 cpu_id=5
-0 [005] dn.2 182.004802: ipi_entry: (Rescheduling interrupts)
-0 [005] d..2 182.005087: cpu_idle: state=2 cpu_id=5
-0 [001] dn.2 182.013154: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 182.013164: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 182.013249: cpu_idle: state=2 cpu_id=1
-0 [001] d..2 182.026463: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 182.026485: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 182.026612: cpu_idle: state=2 cpu_id=1
-0 [001] d..2 182.032442: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 182.032454: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 182.032489: cpu_idle: state=2 cpu_id=1
-0 [001] d..2 182.046798: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 182.046820: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 182.047072: cpu_idle: state=2 cpu_id=1
-0 [006] d..2 182.590620: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.590622: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.590650: cpu_idle: state=0 cpu_id=6
-0 [006] d..2 182.590789: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.590791: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.590817: cpu_idle: state=0 cpu_id=6
-0 [006] d..2 182.590961: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.590962: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.590988: cpu_idle: state=0 cpu_id=6
-0 [006] d..2 182.591024: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.591025: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.591050: cpu_idle: state=0 cpu_id=6
-0 [006] d..2 182.591090: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.591093: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.591120: cpu_idle: state=0 cpu_id=6
-0 [006] d..2 182.591258: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.591260: ipi_entry: (Rescheduling interrupts)
-0 [006] dnh2 182.591268: irq_handler_entry: irq=30 name=arch_timer
-0 [006] d..2 182.591345: cpu_idle: state=2 cpu_id=6
-0 [006] d..2 182.597810: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.597829: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.597965: cpu_idle: state=2 cpu_id=6
-0 [006] d..2 182.604619: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.604638: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.604784: cpu_idle: state=2 cpu_id=6
-0 [006] d..2 182.611438: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.611457: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.611616: cpu_idle: state=2 cpu_id=6
-0 [006] d..2 182.618283: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.618302: ipi_entry: (Rescheduling interrupts)
-0 [006] d..2 182.618473: cpu_idle: state=0 cpu_id=6
-0 [006] d..2 182.621259: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d.h2 182.621267: irq_handler_entry: irq=30 name=arch_timer
-0 [006] d..2 182.621325: cpu_idle: state=2 cpu_id=6
-0 [006] d..2 182.893034: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 182.893052: ipi_entry: (Timer broadcast interrupts)
-0 [006] d..2 182.893214: cpu_idle: state=2 cpu_id=6
-0 [005] d..2 182.922986: cpu_idle: state=4294967295 cpu_id=5
-0 [005] d..2 182.922999: ipi_entry: (Timer broadcast interrupts)
-0 [005] d..2 182.923136: cpu_idle: state=2 cpu_id=5
-0 [004] d..2 182.953006: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 182.953023: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 182.953267: cpu_idle: state=2 cpu_id=4
-0 [001] d..2 183.044953: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 183.044975: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 183.045195: cpu_idle: state=2 cpu_id=1
-0 [004] d..2 183.217711: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 183.217729: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 183.217984: cpu_idle: state=2 cpu_id=4
-0 [006] d..2 183.892985: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 183.893003: ipi_entry: (Timer broadcast interrupts)
-0 [006] d..2 183.893166: cpu_idle: state=2 cpu_id=6
-0 [005] d..2 183.922979: cpu_idle: state=4294967295 cpu_id=5
-0 [005] d..2 183.922994: ipi_entry: (Timer broadcast interrupts)
-0 [005] d..2 183.923126: cpu_idle: state=2 cpu_id=5
-0 [004] d..2 183.952992: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 183.953009: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 183.953168: cpu_idle: state=2 cpu_id=4
-0 [001] d..2 184.042251: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 184.042262: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 184.042310: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 184.042322: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 184.042369: cpu_idle: state=2 cpu_id=4
-0 [001] d..2 184.042399: cpu_idle: state=2 cpu_id=1
-0 [003] d..2 184.143249: cpu_idle: state=4294967295 cpu_id=3
-0 [003] d..2 184.143261: ipi_entry: (Timer broadcast interrupts)
-0 [003] d..2 184.143349: cpu_idle: state=2 cpu_id=3
-0 [006] d..2 184.143350: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 184.143363: ipi_entry: (Timer broadcast interrupts)
-0 [006] d..2 184.143452: cpu_idle: state=2 cpu_id=6
-0 [001] d..2 184.143846: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 184.143855: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 184.143938: cpu_idle: state=2 cpu_id=1
-0 [004] d..2 184.144505: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 184.144510: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 184.144558: cpu_idle: state=2 cpu_id=4
-0 [005] d..2 184.654389: cpu_idle: state=4294967295 cpu_id=5
-0 [005] d..2 184.654406: ipi_entry: (Timer broadcast interrupts)
-0 [005] d..2 184.654527: cpu_idle: state=2 cpu_id=5
-0 [004] d..2 186.219499: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 186.219512: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 186.219720: cpu_idle: state=2 cpu_id=4
-0 [001] dn.2 186.229184: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.229206: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.229386: cpu_idle: state=2 cpu_id=1
-0 [001] dn.2 186.235197: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.235206: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.235943: cpu_idle: state=2 cpu_id=1
-0 [001] dn.2 186.921676: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.921687: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.921828: cpu_idle: state=2 cpu_id=1
-0 [001] dn.2 186.925693: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.925715: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.925845: cpu_idle: state=2 cpu_id=1
-0 [001] dn.2 186.929864: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.929874: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.929943: cpu_idle: state=0 cpu_id=1
-0 [001] dn.2 186.930599: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.930602: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.930649: cpu_idle: state=0 cpu_id=1
-0 [001] dn.2 186.931177: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.931183: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.931231: cpu_idle: state=0 cpu_id=1
-0 [001] d..2 186.931260: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d.h2 186.931266: irq_handler_entry: irq=30 name=arch_timer
irq/73-mmc0-1343 [001] d..3 186.931984: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.932125: cpu_idle: state=2 cpu_id=1
-0 [001] dn.2 186.933285: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.933295: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.933415: cpu_idle: state=2 cpu_id=1
-0 [001] dn.2 186.934937: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.934946: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.935004: cpu_idle: state=2 cpu_id=1
-0 [001] dn.2 186.937345: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.937354: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.937422: cpu_idle: state=0 cpu_id=1
-0 [001] dn.2 186.938094: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.938097: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.938143: cpu_idle: state=0 cpu_id=1
-0 [001] dn.2 186.938570: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.938574: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.938619: cpu_idle: state=0 cpu_id=1
-0 [001] dn.2 186.938743: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.938746: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.938788: cpu_idle: state=0 cpu_id=1
-0 [001] dn.2 186.939268: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.939273: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.939314: cpu_idle: state=0 cpu_id=1
-0 [001] dn.2 186.940124: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 186.940127: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 186.940169: cpu_idle: state=0 cpu_id=1
-0 [001] d..2 186.941260: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d.h2 186.941268: irq_handler_entry: irq=30 name=arch_timer
-0 [001] d..2 186.941339: cpu_idle: state=2 cpu_id=1
-0 [001] d..2 187.024797: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 187.024818: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 187.024946: cpu_idle: state=1 cpu_id=1
-0 [001] d..2 187.032673: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 187.032680: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 187.032854: cpu_idle: state=2 cpu_id=1
-0 [001] d..2 187.234723: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 187.234742: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 187.234846: cpu_idle: state=2 cpu_id=1
-0 [006] d..2 188.143247: cpu_idle: state=4294967295 cpu_id=6
-0 [006] d..2 188.143264: ipi_entry: (Timer broadcast interrupts)
-0 [006] d..2 188.143383: cpu_idle: state=2 cpu_id=6
-0 [004] d..2 188.144124: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 188.144129: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 188.144175: cpu_idle: state=2 cpu_id=4
-0 [003] d..2 188.147123: cpu_idle: state=4294967295 cpu_id=3
-0 [003] d..2 188.147144: ipi_entry: (Timer broadcast interrupts)
-0 [003] d..2 188.147295: cpu_idle: state=2 cpu_id=3
-0 [001] d..2 188.147547: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 188.147556: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 188.147642: cpu_idle: state=2 cpu_id=1
-0 [005] d..2 188.656532: cpu_idle: state=4294967295 cpu_id=5
-0 [005] d..2 188.656550: ipi_entry: (Timer broadcast interrupts)
-0 [005] d..2 188.656674: cpu_idle: state=2 cpu_id=5
-0 [001] dn.2 188.742360: cpu_idle: state=4294967295 cpu_id=1
-0 [001] dn.2 188.742383: ipi_entry: (Rescheduling interrupts)
-0 [001] d..2 188.742561: cpu_idle: state=2 cpu_id=1
-0 [004] d..2 189.221443: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 189.221461: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 189.221701: cpu_idle: state=2 cpu_id=4
-0 [001] d..2 189.234701: cpu_idle: state=4294967295 cpu_id=1
-0 [001] d..2 189.234710: ipi_entry: (Timer broadcast interrupts)
-0 [001] d..2 189.234799: cpu_idle: state=2 cpu_id=1
-0 [004] d..2 190.042278: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 190.042296: ipi_entry: (Timer broadcast interrupts)
-0 [004] d..2 190.042343: cpu_idle: state=2 cpu_id=4
-0 [004] d..2 190.323017: cpu_idle: state=4294967295 cpu_id=4
-0 [004] d..2 190.323034: ipi_entry: (Timer broadcast interrupts)
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A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.