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2026-08-17 - 12:13
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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 Mon Aug 17, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242202210156,42sleep00-21swapper/019:09:420
239042201163,25sleep20-21swapper/219:05:342
240942200161,25sleep30-21swapper/319:08:043
239232197157,27sleep10-21swapper/119:05:481
216212660,0sleep10-21swapper/100:20:011
114312180,0sleep00-21swapper/022:31:380
145162170,0sleep00-21swapper/021:50:170
24349991312,1cyclictest35-21ksoftirqd/322:05:013
209242130,0sleep10-21swapper/121:15:131
24339991210,1cyclictest28-21ksoftirqd/220:50:002
2433999120,11cyclictest0-21swapper/200:20:242
2433699120,8cyclictest0-21swapper/122:17:371
24349991110,1cyclictest35-21ksoftirqd/300:40:003
24339991110,1cyclictest28-21ksoftirqd/221:15:002
24339991110,1cyclictest28-21ksoftirqd/200:05:152
24339991110,0cyclictest28-21ksoftirqd/222:05:132
2433999110,11cyclictest0-21swapper/220:00:202
2433999110,1cyclictest0-21swapper/222:30:192
2434999108,1cyclictest16334-21interrupts23:25:203
2433999108,1cyclictest28-21ksoftirqd/223:00:162
2433999108,1cyclictest28-21ksoftirqd/222:24:592
2433999108,1cyclictest28-21ksoftirqd/220:25:002
2433999108,1cyclictest28-21ksoftirqd/200:35:142
2433999100,9cyclictest28184-21/usr/sbin/munin21:25:232
2432799108,1cyclictest9-21ksoftirqd/021:00:000
2432799102,4cyclictest17184-21diskmemload00:25:010
243499998,1cyclictest9993-21cat21:44:593
243499998,1cyclictest5584-21latency_hist22:25:003
243399999,0cyclictest28-21ksoftirqd/220:44:382
243399998,1cyclictest28-21ksoftirqd/223:30:192
243399997,1cyclictest28-21ksoftirqd/223:55:002
243399997,1cyclictest28-21ksoftirqd/220:30:002
243399997,1cyclictest28-21ksoftirqd/220:19:592
243399990,5cyclictest8807-21/usr/sbin/munin00:00:182
243369991,3cyclictest0-21swapper/122:55:141
243279998,1cyclictest9-21ksoftirqd/023:25:180
243279997,1cyclictest9-21ksoftirqd/020:09:590
243279990,1cyclictest240-21systemd-journal22:50:010
22777290,0sleep20-21swapper/221:15:422
11443290,1sleep20-21swapper/223:19:312
243499987,1cyclictest35-21ksoftirqd/320:08:293
243499987,1cyclictest11301-21snmpd21:31:173
243499987,1cyclictest1-21systemd20:14:073
243499986,1cyclictest5790-21cat23:10:183
243499986,1cyclictest35-21ksoftirqd/322:05:143
243499986,1cyclictest35-21ksoftirqd/319:18:283
243499986,1cyclictest11301-21snmpd23:53:163
243499986,1cyclictest11301-21snmpd22:10:063
243499986,1cyclictest11301-21snmpd21:05:213
243499986,1cyclictest11301-21snmpd19:53:343
243399988,0cyclictest28-21ksoftirqd/222:15:172
243399986,1cyclictest61650irq/122-eno122:35:222
243399986,1cyclictest61650irq/122-eno120:05:122
243399986,1cyclictest61650irq/122-eno100:30:152
243399986,1cyclictest11301-21snmpd20:55:542
243399980,7cyclictest0-21swapper/221:33:232
243399980,5cyclictest3914-21grep19:30:212
243369981,1cyclictest0-21swapper/121:52:581
243279987,1cyclictest15066-21apt21:05:110
243279987,0cyclictest9-21ksoftirqd/000:10:000
243279986,1cyclictest9-21ksoftirqd/019:50:010
243279986,1cyclictest9-21ksoftirqd/019:50:000
243279986,1cyclictest19289-21ssh21:10:470
243279986,1cyclictest19240-21ssh21:56:250
243279986,1cyclictest11301-21snmpd23:50:340
243279984,1cyclictest0-21swapper/022:00:190
243279982,4cyclictest32223-21apt-get00:35:140
243279981,1cyclictest17344-21ssh00:13:150
243279980,7cyclictest0-21swapper/023:20:190
243279980,4cyclictest25883-21sed23:40:010
243279980,4cyclictest14871-21perf21:04:590
243279980,1cyclictest7119-21ssh23:59:100
243279980,1cyclictest0-21swapper/020:45:220
243499976,1cyclictest11301-21snmpd23:33:203
243499976,1cyclictest11301-21snmpd21:21:213
243499976,1cyclictest11301-21snmpd00:09:133
243499975,1cyclictest19256-21ssh22:44:163
243499975,1cyclictest12967-21ssh21:48:433
243499975,1cyclictest11301-21snmpd23:42:223
243499975,1cyclictest11301-21snmpd22:39:373
243499975,1cyclictest11301-21snmpd21:52:553
243499975,1cyclictest11301-21snmpd20:55:083
243499975,1cyclictest11301-21snmpd20:41:403
243499975,1cyclictest11301-21snmpd20:31:173
243499975,1cyclictest11301-21snmpd19:48:553
243499975,1cyclictest11301-21snmpd19:48:543
243499975,1cyclictest11301-21snmpd19:10:453
243499974,0cyclictest17184-21diskmemload22:26:493
243499971,4cyclictest30095-21nscd00:15:143
243499971,2cyclictest0-21swapper/323:05:303
243499970,6cyclictest30114-21ssh21:25:463
243499970,3cyclictest26490-21cron22:55:003
243399976,1cyclictest61650irq/122-eno123:56:122
243399976,1cyclictest61650irq/122-eno122:57:122
243399976,1cyclictest61650irq/122-eno121:50:102
243399976,1cyclictest61650irq/122-eno100:11:422
243399976,1cyclictest28-21ksoftirqd/223:40:122
243399976,1cyclictest28-21ksoftirqd/200:25:032
243399976,0cyclictest61650irq/122-eno122:25:152
243399975,1cyclictest61650irq/122-eno123:10:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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