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2025-12-02 - 04:37
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack1slot1.osadl.org (updated Tue Dec 02, 2025 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190392215163,26sleep20-21swapper/219:06:072
192412211156,24sleep10-21swapper/119:08:431
192702210159,25sleep00-21swapper/019:09:060
192232201162,25sleep30-21swapper/319:08:293
174282680,0sleep00-21swapper/022:00:190
302092640,0sleep30-21swapper/322:20:013
76812570,0sleep00-21swapper/021:46:120
21082560,0sleep20-21swapper/221:40:072
77122200,0sleep20-21swapper/219:50:172
247142170,0sleep10-21swapper/122:55:511
218132120,0sleep10-21swapper/100:25:111
1943499121,7cyclictest21156-21ssh22:05:190
1943499121,6cyclictest13680-21perf20:04:590
196792110,0sleep10-21swapper/100:20:191
19463991110,1cyclictest35-21ksoftirqd/321:20:003
19454991110,1cyclictest28-21ksoftirqd/221:55:012
1946399108,1cyclictest0-21swapper/322:55:143
1945499108,1cyclictest28-21ksoftirqd/219:25:002
1943499100,3cyclictest254-21systemd-journal00:02:580
194549998,1cyclictest28-21ksoftirqd/223:24:592
194549998,1cyclictest28-21ksoftirqd/223:16:022
194549996,1cyclictest60950irq/123-eno100:10:002
194549990,3cyclictest0-21swapper/222:36:312
194349991,4cyclictest5391-21perf21:45:000
194349990,8cyclictest0-21swapper/023:50:170
194349990,4cyclictest22529-21perf22:55:000
6290280,0sleep20-21swapper/222:30:222
194639981,5cyclictest11531-21apt-get20:00:133
194639981,4cyclictest0-21swapper/320:05:173
194549986,1cyclictest60950irq/123-eno123:50:152
194549986,1cyclictest60950irq/123-eno119:30:202
194549986,1cyclictest60950irq/123-eno100:21:032
194549986,1cyclictest28-21ksoftirqd/222:21:122
194549986,1cyclictest28-21ksoftirqd/220:30:002
194549984,2cyclictest570-21systemd-logind23:35:222
194549984,2cyclictest570-21systemd-logind23:35:222
194549980,7cyclictest12328-21diskmemload00:15:132
194549980,4cyclictest0-21swapper/220:05:172
194449981,4cyclictest0-21swapper/119:50:201
194449980,4cyclictest0-21swapper/123:35:261
194449980,4cyclictest0-21swapper/123:35:251
194349987,1cyclictest0-21swapper/021:05:200
194349983,4cyclictest18890-21nscd23:17:350
194349983,2cyclictest9-21ksoftirqd/022:38:380
194349982,2cyclictest0-21swapper/022:20:130
194349981,3cyclictest23151-21perf20:25:000
194349980,7cyclictest1480-21ssh23:55:190
194349980,5cyclictest8955-21latency_hist19:55:010
194349980,4cyclictest11332-21perf20:00:000
194349980,1cyclictest23573-21apt-get21:25:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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