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2026-08-20 - 01:29
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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 Thu Aug 20, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130062206169,24sleep00-21swapper/019:06:400
129732201160,27sleep20-21swapper/219:06:122
129542201160,26sleep30-21swapper/319:05:573
111522198161,24sleep10-21swapper/119:05:071
91052740,0sleep20-21swapper/220:05:162
293022170,1sleep26402-21diskmemload21:40:162
13344991412,1cyclictest9-21ksoftirqd/000:05:000
13360991311,1cyclictest28-21ksoftirqd/219:20:002
13360991211,1cyclictest28-21ksoftirqd/222:15:012
13360991211,1cyclictest28-21ksoftirqd/221:55:002
13360991210,1cyclictest28-21ksoftirqd/220:20:012
13344991211,1cyclictest9-21ksoftirqd/022:40:000
1336999119,1cyclictest35-21ksoftirqd/300:15:133
13360991111,0cyclictest0-21swapper/222:36:482
1336099110,10cyclictest0-21swapper/222:23:532
1334499113,4cyclictest7794-21cat20:05:000
141862100,0sleep20-21swapper/223:36:242
1336999108,1cyclictest35-21ksoftirqd/322:40:093
1336099109,1cyclictest28-21ksoftirqd/223:50:002
1336099100,10cyclictest0-21swapper/222:05:152
1336099100,10cyclictest0-21swapper/221:27:022
1336099100,10cyclictest0-21swapper/219:30:172
1334499109,1cyclictest9-21ksoftirqd/023:15:010
1334499109,1cyclictest9-21ksoftirqd/023:00:010
1334499100,9cyclictest22610-21sh23:03:460
133699998,1cyclictest35-21ksoftirqd/300:35:013
133699993,1cyclictest554-21dbus-daemon00:00:003
133609998,1cyclictest28-21ksoftirqd/221:58:042
133609998,1cyclictest28-21ksoftirqd/219:40:002
133609998,1cyclictest28-21ksoftirqd/200:20:002
133609998,1cyclictest28-21ksoftirqd/200:05:172
133609997,1cyclictest28-21ksoftirqd/222:55:152
133609997,1cyclictest28-21ksoftirqd/222:45:002
133609997,1cyclictest28-21ksoftirqd/221:30:152
133609997,1cyclictest28-21ksoftirqd/219:50:122
133609990,9cyclictest0-21swapper/222:41:302
133539990,8cyclictest0-21swapper/122:51:561
133539990,8cyclictest0-21swapper/120:35:201
133449999,0cyclictest9-21ksoftirqd/022:15:000
133449998,1cyclictest9-21ksoftirqd/023:40:150
133449998,1cyclictest9-21ksoftirqd/022:35:010
133449991,4cyclictest31610-21latency_hist21:45:000
133449991,2cyclictest16596-21/usr/sbin/munin19:15:140
133449990,1cyclictest0-21swapper/023:50:410
133699986,1cyclictest11301-21snmpd23:25:253
133699986,1cyclictest11301-21snmpd22:05:473
133699986,1cyclictest11301-21snmpd00:03:303
133699985,2cyclictest13338-21cyclictest23:19:493
133699982,4cyclictest20422-21apt-get22:15:113
133699981,4cyclictest12687-21/usr/sbin/munin20:15:143
133699980,8cyclictest0-21swapper/300:12:183
133699980,4cyclictest0-21swapper/323:10:103
133699980,3cyclictest0-21swapper/322:55:123
133699980,0cyclictest0-21swapper/300:37:033
133609988,0cyclictest28-21ksoftirqd/222:00:142
133609988,0cyclictest0-21swapper/200:25:032
133609987,1cyclictest28-21ksoftirqd/223:15:122
133609987,1cyclictest28-21ksoftirqd/223:00:002
133609987,1cyclictest28-21ksoftirqd/221:00:132
133609987,1cyclictest28-21ksoftirqd/200:00:222
133609987,0cyclictest28-21ksoftirqd/223:25:132
133609986,1cyclictest61650irq/122-eno123:34:122
133609986,1cyclictest61650irq/122-eno120:30:142
133609986,1cyclictest61650irq/122-eno119:50:012
133609986,1cyclictest61650irq/122-eno100:13:372
133609986,1cyclictest28-21ksoftirqd/222:15:142
133609986,1cyclictest28-21ksoftirqd/221:10:142
133609985,3cyclictest28-21ksoftirqd/223:40:152
133609985,1cyclictest1641-21ssh21:46:512
133609983,2cyclictest240-21systemd-journal21:00:012
133539980,4cyclictest0-21swapper/120:25:121
133449987,1cyclictest5529-21/usr/sbin/munin22:40:100
133449987,0cyclictest9-21ksoftirqd/000:20:130
133449981,6cyclictest20746-21seq22:15:120
133449980,7cyclictest8757-21ssh21:57:120
133449980,7cyclictest29047-21ssh23:59:120
133449980,7cyclictest15377-21ssh22:05:520
133449980,7cyclictest0-21swapper/023:25:140
133449980,6cyclictest240-21systemd-journal23:20:000
133449980,5cyclictest21703-21ssh00:35:110
133449980,4cyclictest30677-21latency_hist22:30:000
133449980,1cyclictest20136-21ssh21:27:310
133699976,1cyclictest35-21ksoftirqd/321:04:523
133699976,1cyclictest35-21ksoftirqd/319:15:003
133699976,1cyclictest11301-21snmpd22:12:233
133699975,1cyclictest35-21ksoftirqd/320:35:003
133699975,1cyclictest17595-21ssh21:25:043
133699975,1cyclictest11301-21snmpd19:41:073
133699975,1cyclictest11253-21ssh22:46:043
133699974,1cyclictest13650irq/124-ahci[0020:44:553
133699971,4cyclictest6402-21diskmemload00:25:153
133699971,3cyclictest0-21swapper/322:30:533
133699970,6cyclictest1-21systemd20:04:553
133699970,5cyclictest0-21swapper/321:57:103
133699970,4cyclictest0-21swapper/322:35:093
133699970,3cyclictest0-21swapper/323:20:103
133699970,0cyclictest0-21swapper/321:50:283
133609976,1cyclictest61650irq/122-eno123:05:182
133609976,1cyclictest61650irq/122-eno119:10:212
133609976,1cyclictest28-21ksoftirqd/222:25:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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