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2026-03-18 - 10:18
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Wed Mar 18, 2026 00:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106682210171,26sleep30-21swapper/319:08:313
107172204149,41sleep00-21swapper/019:09:080
104522200162,25sleep10-21swapper/119:05:401
107712196158,25sleep20-21swapper/219:09:512
260252700,0sleep10-21swapper/121:35:191
10874991312,1cyclictest0-21swapper/200:35:122
10860991311,1cyclictest9-21ksoftirqd/020:00:000
10885991211,1cyclictest35-21ksoftirqd/321:35:013
1088599119,1cyclictest35-21ksoftirqd/300:24:593
10874991110,1cyclictest27171-21sh21:37:082
1088599109,1cyclictest35-21ksoftirqd/322:55:143
1088599109,1cyclictest35-21ksoftirqd/322:40:003
1088599108,2cyclictest35-21ksoftirqd/322:55:003
1088599108,1cyclictest35-21ksoftirqd/300:15:013
10885991010,0cyclictest35-21ksoftirqd/300:05:193
1087499100,7cyclictest24254-21kworker/u8:122:20:022
1086899100,5cyclictest0-21swapper/100:05:191
1086099109,1cyclictest9-21ksoftirqd/023:20:000
1086099100,4cyclictest0-21swapper/023:35:120
108859998,1cyclictest35-21ksoftirqd/322:04:593
108859998,1cyclictest35-21ksoftirqd/320:45:013
108859997,1cyclictest3952-21diskmemload21:49:013
108859997,1cyclictest35-21ksoftirqd/319:20:013
108749998,1cyclictest28-21ksoftirqd/220:20:002
108749997,1cyclictest3952-21diskmemload23:58:472
108749994,3cyclictest635-21unixbench_singl00:30:232
108749990,6cyclictest3952-21diskmemload22:54:482
108609997,1cyclictest9-21ksoftirqd/020:04:590
108609990,5cyclictest12408-21latency_hist20:20:010
108859986,1cyclictest707-21snmpd23:10:043
108859986,1cyclictest707-21snmpd22:47:363
108859986,1cyclictest707-21snmpd20:00:343
108859986,1cyclictest707-21snmpd19:59:403
108859986,1cyclictest707-21snmpd19:27:443
108859986,1cyclictest35-21ksoftirqd/320:45:123
108859986,1cyclictest0-21swapper/321:00:133
108859981,4cyclictest5266-21rm21:10:163
108859980,1cyclictest0-21swapper/322:40:113
108749988,0cyclictest61650irq/122-eno100:21:572
108749986,1cyclictest707-21snmpd21:12:512
108749986,1cyclictest707-21snmpd21:03:472
108749986,1cyclictest61650irq/122-eno123:40:172
108749986,1cyclictest61650irq/122-eno122:35:122
108749986,1cyclictest61650irq/122-eno122:10:152
108749986,1cyclictest61650irq/122-eno121:57:222
108749986,1cyclictest61650irq/122-eno121:45:172
108749986,1cyclictest61650irq/122-eno121:25:122
108749986,1cyclictest61650irq/122-eno121:10:002
108749986,1cyclictest61650irq/122-eno100:29:472
108749986,1cyclictest61650irq/122-eno100:10:172
108749986,1cyclictest28-21ksoftirqd/219:20:012
108749981,5cyclictest21654-21diskmemload00:16:232
108749980,1cyclictest0-21swapper/222:15:542
108609987,1cyclictest22623-21ssh00:18:540
108609987,1cyclictest21210-21ssh22:53:420
108609986,1cyclictest707-21snmpd21:36:310
108609986,1cyclictest707-21snmpd20:51:170
108609986,1cyclictest17622-21ssh22:06:140
108609986,1cyclictest16574-21ntpq00:10:180
108609982,5cyclictest101rcuc/000:25:000
108609981,6cyclictest17292-21/usr/sbin/munin20:30:210
108609981,1cyclictest16122-21ssh22:45:290
108609980,7cyclictest30895-21chrt23:47:060
108609980,7cyclictest20049-21taskset21:29:360
108859977,0cyclictest35-21ksoftirqd/322:25:003
108859977,0cyclictest35-21ksoftirqd/321:30:013
108859977,0cyclictest35-21ksoftirqd/320:20:143
108859976,1cyclictest35-21ksoftirqd/323:15:143
108859976,1cyclictest35-21ksoftirqd/323:05:003
108859976,1cyclictest35-21ksoftirqd/322:30:003
108859976,1cyclictest35-21ksoftirqd/321:20:133
108859975,1cyclictest707-21snmpd21:54:013
108859975,1cyclictest707-21snmpd19:35:123
108859975,1cyclictest707-21snmpd19:30:033
108859975,1cyclictest707-21snmpd00:36:393
108859975,1cyclictest4909-21ssh22:32:083
108859975,1cyclictest35-21ksoftirqd/323:05:183
108859975,1cyclictest35-21ksoftirqd/322:20:013
108859975,1cyclictest25442-21cat23:40:153
108859975,1cyclictest10426-21ssh21:57:413
108859973,0cyclictest3952-21diskmemload21:35:273
108859972,4cyclictest5494-21apt-get20:05:103
108859970,4cyclictest0-21swapper/323:20:133
108859970,2cyclictest0-21swapper/322:14:303
108859970,2cyclictest0-21swapper/300:01:043
108859970,1cyclictest0-21swapper/323:54:143
108859970,1cyclictest0-21swapper/323:28:343
108859970,1cyclictest0-21swapper/321:05:123
108749977,0cyclictest0-21swapper/223:16:132
108749976,1cyclictest61650irq/122-eno123:37:322
108749976,1cyclictest61650irq/122-eno122:45:132
108749976,1cyclictest61650irq/122-eno122:40:132
108749976,1cyclictest61650irq/122-eno122:30:122
108749976,1cyclictest61650irq/122-eno120:53:352
108749976,1cyclictest61650irq/122-eno100:04:442
108749976,1cyclictest28-21ksoftirqd/223:00:142
108749975,1cyclictest707-21snmpd21:20:322
108749975,1cyclictest61650irq/122-eno120:20:172
108749970,6cyclictest0-21swapper/219:37:142
108689971,1cyclictest0-21swapper/121:48:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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