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2026-03-15 - 18:04
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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 Sun Mar 15, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171052206173,21sleep00-21swapper/007:06:270
172792202164,24sleep30-21swapper/307:08:433
171892199160,26sleep20-21swapper/207:07:352
171512198161,24sleep10-21swapper/107:07:041
8052180,0sleep00-21swapper/010:20:110
86982140,0sleep30-21swapper/311:10:213
17475991311,1cyclictest18799-21taskset11:25:132
1747599119,1cyclictest28-21ksoftirqd/207:30:012
1747599119,1cyclictest28-21ksoftirqd/207:19:592
1747599117,0cyclictest0-21swapper/210:20:192
1747599110,2cyclictest26035-21/usr/sbin/munin08:35:202
17463991110,1cyclictest9-21ksoftirqd/009:40:000
1748299102,5cyclictest17530-21kworker/u8:212:29:203
1748299102,4cyclictest240-21systemd-journal08:55:013
1747599100,9cyclictest0-21swapper/209:42:242
1746399102,4cyclictest29967-21cat07:35:000
1746399101,8cyclictest24494-21ssh09:26:090
174759998,1cyclictest28-21ksoftirqd/209:50:002
174759994,2cyclictest240-21systemd-journal11:20:002
174639998,1cyclictest561-21nscd12:31:010
174829987,1cyclictest35-21ksoftirqd/310:45:013
174829986,1cyclictest707-21snmpd07:17:123
174829986,1cyclictest35-21ksoftirqd/311:05:003
174759986,1cyclictest707-21snmpd12:10:142
174759986,1cyclictest707-21snmpd11:52:162
174759986,1cyclictest707-21snmpd11:14:482
174759986,1cyclictest707-21snmpd08:04:152
174759986,1cyclictest61650irq/122-eno111:30:182
174759986,1cyclictest61650irq/122-eno110:59:592
174759986,1cyclictest61650irq/122-eno109:55:162
174759986,1cyclictest61650irq/122-eno108:55:152
174759980,7cyclictest18741-21ssh10:00:192
174759980,7cyclictest0-21swapper/210:40:452
174759980,5cyclictest8017-21kworker/u8:009:12:132
174689980,6cyclictest0-21swapper/111:15:121
174689980,3cyclictest0-21swapper/108:00:121
174639987,1cyclictest9-21ksoftirqd/012:40:010
174639986,1cyclictest707-21snmpd09:46:220
174639986,1cyclictest707-21snmpd09:11:200
174639986,1cyclictest707-21snmpd07:38:240
174639986,1cyclictest22220-21cat08:25:160
174639982,3cyclictest10111-21diskmemload11:40:200
174639981,6cyclictest21296-21ssh10:45:160
174639981,6cyclictest12144-21perf10:35:010
174639981,1cyclictest3019-1kworker/u9:112:29:240
174639980,7cyclictest4852-21ssh11:48:440
174639980,4cyclictest13320-21perf12:00:000
174639980,1cyclictest2151-21ssh11:03:020
174829976,1cyclictest707-21snmpd09:55:393
174829976,1cyclictest35-21ksoftirqd/311:30:003
174829975,1cyclictest707-21snmpd11:08:363
174829975,1cyclictest707-21snmpd10:57:123
174829975,1cyclictest707-21snmpd10:32:533
174829975,1cyclictest707-21snmpd10:28:043
174829975,1cyclictest707-21snmpd10:17:563
174829975,1cyclictest707-21snmpd09:50:253
174829975,1cyclictest707-21snmpd09:45:573
174829975,1cyclictest707-21snmpd08:56:323
174829975,1cyclictest707-21snmpd07:47:213
174829975,1cyclictest707-21snmpd07:38:463
174829975,1cyclictest707-21snmpd07:34:063
174829975,1cyclictest26599-21ntpq07:25:173
174829975,1cyclictest24389-21ssh10:08:013
174829975,1cyclictest13005-21ssh11:16:043
174829971,5cyclictest19817-21munin-node12:33:323
174829970,5cyclictest707-21snmpd12:21:413
174829970,5cyclictest16366-21kworker/u8:011:24:333
174829970,4cyclictest0-21swapper/310:39:503
174829970,2cyclictest0-21swapper/310:03:423
174759976,1cyclictest61650irq/122-eno111:55:222
174759976,1cyclictest61650irq/122-eno111:09:242
174759976,1cyclictest61650irq/122-eno109:35:362
174759976,1cyclictest61650irq/122-eno109:15:162
174759975,1cyclictest707-21snmpd12:33:082
174759975,1cyclictest707-21snmpd09:24:452
174759975,1cyclictest707-21snmpd09:00:032
174759975,1cyclictest707-21snmpd07:45:342
174759975,1cyclictest61650irq/122-eno112:20:132
174759975,1cyclictest61650irq/122-eno111:35:122
174759975,1cyclictest61650irq/122-eno110:30:132
174759975,1cyclictest61650irq/122-eno110:10:202
174759975,1cyclictest61650irq/122-eno109:50:172
174759975,1cyclictest61650irq/122-eno108:05:122
174759975,1cyclictest32128-21ssh11:40:232
174759974,1cyclictest548-21systemd-logind09:30:192
174759971,5cyclictest0-21swapper/208:53:412
174759971,1cyclictest0-21swapper/209:26:362
174759970,6cyclictest0-21swapper/210:15:502
174689976,0cyclictest21-21ksoftirqd/112:16:361
174689970,6cyclictest0-21swapper/111:35:011
174689970,5cyclictest0-21swapper/108:05:141
174689970,4cyclictest0-21swapper/110:58:481
174689970,1cyclictest0-21swapper/112:25:291
174689970,1cyclictest0-21swapper/109:05:151
174639976,1cyclictest9-21ksoftirqd/007:30:010
174639976,1cyclictest9-21ksoftirqd/007:11:330
174639976,1cyclictest22765-21ssh10:05:180
174639976,1cyclictest16889-21ssh12:04:230
174639975,1cyclictest9-21ksoftirqd/008:19:590
174639975,1cyclictest707-21snmpd11:07:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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