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2021-09-27 - 06:02

ARMv7 Processor rev 4 (v7l), Linux 4.6.5-rt10-v7 (Profile)

Latency plot of system in rack #b, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot3.osadl.org (updated Mon Sep 27, 2021 00:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1442992140,4rtkit-daemon1441-21rtkit-daemon20:42:460
1442991730,4rtkit-daemon0-21swapper/321:53:062
258239915133,87cyclictest3-21ksoftirqd/022:55:010
25825991503,30cyclictest0-21swapper/223:52:222
1442991500,4rtkit-daemon0-21swapper/320:27:052
258239914556,69cyclictest3-21ksoftirqd/022:25:150
25825991443,37cyclictest0-21swapper/222:43:552
25825991443,37cyclictest0-21swapper/222:43:552
25825991442,31cyclictest0-21swapper/200:39:052
258239914452,71cyclictest3-21ksoftirqd/000:40:030
25823991441,129cyclictest15282-21runrttasks21:27:190
258239914358,65cyclictest3-21ksoftirqd/023:32:360
258239914331,84cyclictest3-21ksoftirqd/022:31:280
258259914246,28cyclictest33-21ksoftirqd/222:35:092
25823991422,32cyclictest0-21swapper/021:07:150
258239914220,50cyclictest3-21ksoftirqd/021:30:460
25825991412,33cyclictest23181-21ssh21:45:492
258239914152,32cyclictest3-21ksoftirqd/000:05:030
258239914152,32cyclictest3-21ksoftirqd/000:05:030
25823991413,49cyclictest0-21swapper/019:38:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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