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2026-07-02 - 21:38
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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 Jul 02, 2026 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233792201160,27sleep20-21swapper/207:06:472
234102200162,25sleep30-21swapper/307:07:123
233502198134,21sleep00-21swapper/007:06:240
233732197161,23sleep10-21swapper/107:06:411
23709991614,1cyclictest28-21ksoftirqd/209:15:152
2370999158,4cyclictest28-21ksoftirqd/209:10:482
22582150,0sleep10-21swapper/111:45:201
2369999140,0cyclictest0-21swapper/010:26:140
23709991312,1cyclictest28-21ksoftirqd/210:16:282
23709991311,1cyclictest28-21ksoftirqd/212:05:212
2370999123,8cyclictest26265-21munin-node09:08:052
23709991211,1cyclictest28-21ksoftirqd/211:56:252
23709991211,1cyclictest28-21ksoftirqd/209:20:192
23699991210,1cyclictest9-21ksoftirqd/010:20:010
2371799119,1cyclictest35-21ksoftirqd/311:55:003
2370999119,1cyclictest28-21ksoftirqd/211:35:012
2370999119,1cyclictest28-21ksoftirqd/207:15:162
2370999119,1cyclictest14759-21ntpq07:55:172
23709991111,0cyclictest28-21ksoftirqd/212:25:112
23709991111,0cyclictest28-21ksoftirqd/211:05:152
23709991110,1cyclictest28-21ksoftirqd/212:21:502
23709991110,1cyclictest28-21ksoftirqd/209:33:592
23709991110,1cyclictest28-21ksoftirqd/207:30:132
23709991110,1cyclictest28-21ksoftirqd/207:14:592
2369999119,1cyclictest9-21ksoftirqd/009:14:590
2369999113,4cyclictest25621-21perf11:35:000
2369999112,4cyclictest9943-21perf09:45:000
23699991110,1cyclictest9-21ksoftirqd/010:05:010
23699991110,1cyclictest9-21ksoftirqd/008:45:000
2371799109,1cyclictest35-21ksoftirqd/310:10:003
2371799108,1cyclictest35-21ksoftirqd/307:40:013
2370999109,1cyclictest28-21ksoftirqd/212:30:182
2370999109,1cyclictest28-21ksoftirqd/212:17:352
2370999109,1cyclictest28-21ksoftirqd/211:40:132
2370999109,1cyclictest28-21ksoftirqd/211:20:372
2370999109,1cyclictest28-21ksoftirqd/211:16:542
2370999109,1cyclictest28-21ksoftirqd/210:22:042
2370999109,1cyclictest28-21ksoftirqd/210:13:302
2370999109,1cyclictest28-21ksoftirqd/210:09:192
2370999109,1cyclictest28-21ksoftirqd/209:40:002
2370999109,0cyclictest28-21ksoftirqd/212:35:282
2370999108,1cyclictest28-21ksoftirqd/211:53:232
2370999108,1cyclictest28-21ksoftirqd/211:25:412
2370999108,1cyclictest28-21ksoftirqd/210:58:222
2370999108,1cyclictest28-21ksoftirqd/207:55:002
23709991010,0cyclictest28-21ksoftirqd/212:13:042
23709991010,0cyclictest28-21ksoftirqd/212:00:152
23709991010,0cyclictest28-21ksoftirqd/211:45:072
23709991010,0cyclictest28-21ksoftirqd/210:35:162
23709991010,0cyclictest28-21ksoftirqd/209:25:222
2370999100,1cyclictest0-21swapper/208:10:102
2369999109,1cyclictest9-21ksoftirqd/009:50:010
2369999102,4cyclictest21056-21latency_hist09:59:590
2369999100,9cyclictest26265-21munin-node10:37:390
237179998,1cyclictest23057-21ssh11:30:133
237179997,1cyclictest35-21ksoftirqd/307:19:593
237179996,1cyclictest35-21ksoftirqd/311:01:513
237179991,6cyclictest11817-21apt-get12:00:113
237179990,5cyclictest28533-21/usr/sbin/munin10:10:143
237099999,0cyclictest28-21ksoftirqd/210:41:052
237099998,1cyclictest28-21ksoftirqd/211:12:182
237099998,1cyclictest28-21ksoftirqd/210:50:282
237099998,1cyclictest28-21ksoftirqd/210:30:152
237099998,1cyclictest28-21ksoftirqd/210:01:032
237099998,1cyclictest28-21ksoftirqd/209:58:282
237099998,1cyclictest28-21ksoftirqd/209:45:142
237099998,1cyclictest28-21ksoftirqd/209:40:152
237099998,1cyclictest28-21ksoftirqd/208:55:122
237099998,1cyclictest28-21ksoftirqd/208:45:112
237099998,1cyclictest28-21ksoftirqd/208:20:152
237099998,1cyclictest28-21ksoftirqd/207:29:592
237099997,2cyclictest28-21ksoftirqd/210:25:132
237099997,1cyclictest28-21ksoftirqd/210:45:142
236999998,1cyclictest9-21ksoftirqd/010:55:000
236999997,1cyclictest9-21ksoftirqd/010:31:330
236999997,1cyclictest9-21ksoftirqd/008:34:590
236999997,1cyclictest9-21ksoftirqd/007:55:000
236999990,8cyclictest0-21swapper/009:05:190
236999990,6cyclictest563-21nscd11:57:590
8908280,0sleep10-21swapper/110:25:421
237179988,0cyclictest35-21ksoftirqd/309:45:163
237179987,1cyclictest35-21ksoftirqd/309:40:003
237179987,0cyclictest35-21ksoftirqd/309:19:593
237179986,1cyclictest35-21ksoftirqd/308:40:003
237179980,4cyclictest3380-21apt-get10:20:113
237179980,3cyclictest240-21systemd-journal09:10:003
237099988,0cyclictest28-21ksoftirqd/208:40:222
237099988,0cyclictest24452-21sensors08:15:192
237099987,1cyclictest28-21ksoftirqd/211:00:362
237099987,1cyclictest28-21ksoftirqd/209:50:002
237099987,1cyclictest28-21ksoftirqd/208:35:002
237099987,1cyclictest28-21ksoftirqd/207:40:132
237099986,1cyclictest28-21ksoftirqd/211:35:042
237099986,1cyclictest28-21ksoftirqd/207:35:142
237009988,0cyclictest21-21ksoftirqd/108:53:511
237009981,3cyclictest0-21swapper/108:24:591
237009981,1cyclictest0-21swapper/111:16:211
236999987,1cyclictest9-21ksoftirqd/012:15:000
236999987,1cyclictest9-21ksoftirqd/011:25:010
236999987,1cyclictest9-21ksoftirqd/007:19:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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