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2026-03-14 - 17:19
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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 Sat Mar 14, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221772215150,21sleep00-21swapper/007:08:170
220932201162,26sleep30-21swapper/307:07:113
220672200161,26sleep20-21swapper/207:06:502
219992199161,25sleep10-21swapper/107:05:561
325752640,0sleep10-21swapper/107:30:001
157442610,0sleep20-21swapper/209:50:102
188062600,0sleep30-21swapper/309:13:183
185472590,0sleep10-21swapper/109:12:441
2239399150,13cyclictest0-21swapper/109:50:191
241472140,0sleep30-21swapper/308:20:003
2238399130,9cyclictest240-21systemd-journal09:28:580
2240199120,11cyclictest30019-21/usr/sbin/munin10:50:182
2238399118,1cyclictest9-21ksoftirqd/008:20:000
22383991110,1cyclictest9-21ksoftirqd/011:55:000
22383991110,1cyclictest9-21ksoftirqd/008:35:000
2240199108,1cyclictest28-21ksoftirqd/208:35:002
2240199100,8cyclictest24751-21munin-node07:34:272
2238399108,1cyclictest9-21ksoftirqd/007:15:010
224109999,0cyclictest35-21ksoftirqd/310:57:423
224109998,1cyclictest35-21ksoftirqd/307:41:193
224109997,1cyclictest35-21ksoftirqd/308:50:013
224109992,6cyclictest15457-21diskmemload10:09:293
223839998,1cyclictest9-21ksoftirqd/009:10:000
223839997,1cyclictest9-21ksoftirqd/010:10:000
223839992,6cyclictest12407-21fschecks_count09:45:130
223839992,3cyclictest9746-21date07:50:000
223839990,6cyclictest15457-21diskmemload11:35:110
223839990,3cyclictest0-21swapper/008:25:120
224109987,1cyclictest35-21ksoftirqd/310:25:013
224109987,1cyclictest35-21ksoftirqd/307:40:003
224109986,1cyclictest707-21snmpd12:39:183
224109986,1cyclictest707-21snmpd11:35:193
224109986,1cyclictest707-21snmpd11:32:313
224109986,1cyclictest707-21snmpd11:00:573
224109986,1cyclictest707-21snmpd10:39:453
224109986,1cyclictest707-21snmpd09:01:203
224109986,1cyclictest707-21snmpd08:06:583
224109986,1cyclictest707-21snmpd07:22:513
224109985,2cyclictest707-21snmpd07:29:273
224109982,4cyclictest0-21swapper/312:05:183
224109981,3cyclictest35-21ksoftirqd/312:32:523
224109981,3cyclictest15457-21diskmemload11:40:423
224109980,5cyclictest0-21swapper/309:36:463
224109980,3cyclictest24026-21ssh09:20:113
224019986,1cyclictest707-21snmpd12:34:572
224019986,1cyclictest707-21snmpd09:57:222
224019986,1cyclictest61650irq/122-eno112:20:132
224019986,1cyclictest28-21ksoftirqd/212:05:002
224019982,5cyclictest15457-21diskmemload09:20:112
224019982,1cyclictest15457-21diskmemload12:20:012
224019980,5cyclictest15682-21diskmemload11:12:202
224019980,1cyclictest0-21swapper/211:27:462
223839988,0cyclictest9-21ksoftirqd/011:30:120
223839988,0cyclictest9-21ksoftirqd/011:25:000
223839987,1cyclictest31248-21ssh12:15:080
223839986,1cyclictest707-21snmpd08:49:410
223839986,1cyclictest22837-21sh12:03:590
223839986,1cyclictest19447-21ssh09:14:470
223839984,3cyclictest9-21ksoftirqd/008:05:140
223839984,3cyclictest561-21nscd11:45:150
223839983,4cyclictest4188-21kworker/u8:211:41:320
223839983,3cyclictest15457-21grep08:00:130
223839983,1cyclictest27402-21/usr/sbin/munin12:10:140
223839981,6cyclictest25769-21telnet07:15:130
223839981,6cyclictest13702-21sort11:10:130
223839980,7cyclictest0-21swapper/012:20:120
223839980,4cyclictest15457-21diskmemload10:14:560
223839980,4cyclictest1315-21latency_hist08:40:000
21670280,0sleep00-21swapper/010:39:470
25319270,1sleep10-21swapper/110:44:091
224109975,1cyclictest707-21snmpd12:28:333
224109975,1cyclictest707-21snmpd12:15:303
224109975,1cyclictest707-21snmpd11:22:373
224109975,1cyclictest707-21snmpd10:43:003
224109975,1cyclictest707-21snmpd08:14:253
224109975,1cyclictest707-21snmpd08:00:053
224109975,1cyclictest707-21snmpd07:58:133
224109975,1cyclictest707-21snmpd07:45:303
224109975,1cyclictest707-21snmpd07:13:113
224109975,1cyclictest35-21ksoftirqd/308:25:013
224109975,1cyclictest22007-21ssh12:01:483
224109973,2cyclictest15457-21diskmemload09:31:403
224109972,3cyclictest8592-21apt-get08:55:113
224109972,2cyclictest22474-21taskset09:58:103
224109971,3cyclictest15457-21diskmemload11:16:423
224109970,6cyclictest18015-21ssh11:56:373
224019976,1cyclictest61650irq/122-eno111:20:302
224019976,1cyclictest61650irq/122-eno111:04:452
224019976,1cyclictest61650irq/122-eno110:46:162
224019976,1cyclictest61650irq/122-eno110:29:292
224019976,1cyclictest61650irq/122-eno110:05:102
224019976,1cyclictest61650irq/122-eno109:45:192
224019976,1cyclictest61650irq/122-eno109:39:592
224019976,1cyclictest61650irq/122-eno109:28:312
224019976,1cyclictest28-21ksoftirqd/209:00:102
224019976,0cyclictest61650irq/122-eno111:45:192
224019975,1cyclictest707-21snmpd08:51:292
224019975,1cyclictest707-21snmpd08:11:472
224019975,1cyclictest61650irq/122-eno112:35:152
224019975,1cyclictest61650irq/122-eno111:55:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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