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2026-08-29 - 00:33
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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 Fri Aug 28, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
79792218157,47sleep10-21swapper/107:05:481
79792218157,47sleep10-21swapper/107:05:481
82612213150,51sleep30-21swapper/307:09:283
82612213150,51sleep30-21swapper/307:09:283
80502201161,26sleep00-21swapper/007:06:440
80502201161,26sleep00-21swapper/007:06:440
81442199160,25sleep20-21swapper/207:07:582
81442199160,25sleep20-21swapper/207:07:582
141482830,0sleep20-21swapper/212:30:192
116902660,0sleep00-21swapper/009:24:290
318852610,0sleep20-21swapper/209:51:102
206392570,0sleep10-21swapper/109:35:151
172552510,1sleep2839999cyclictest12:35:152
232812190,0sleep10-21swapper/109:40:121
251812160,1sleep318368-21kworker/3:011:15:143
8406991210,1cyclictest35-21ksoftirqd/308:20:003
8399991211,1cyclictest28-21ksoftirqd/212:20:452
838599124,4cyclictest10787-21cut07:15:010
8406991110,1cyclictest35-21ksoftirqd/311:15:003
839999119,1cyclictest28-21ksoftirqd/211:40:172
839999119,1cyclictest28-21ksoftirqd/210:48:472
8399991111,0cyclictest28-21ksoftirqd/211:30:132
8399991110,1cyclictest28-21ksoftirqd/212:05:002
8399991110,1cyclictest28-21ksoftirqd/210:53:252
8399991110,1cyclictest28-21ksoftirqd/210:40:212
8399991110,1cyclictest28-21ksoftirqd/209:32:432
8399991110,1cyclictest28-21ksoftirqd/209:21:292
838599118,1cyclictest9-21ksoftirqd/007:50:000
838599112,4cyclictest31360-21perf09:05:010
838599111,5cyclictest31526-21perf11:25:000
840699108,1cyclictest16976-21apt-get08:35:113
840699100,5cyclictest29851-21apt-get09:50:113
839999109,1cyclictest28-21ksoftirqd/212:18:222
839999109,1cyclictest28-21ksoftirqd/212:10:132
839999109,1cyclictest28-21ksoftirqd/211:48:092
839999109,1cyclictest28-21ksoftirqd/211:36:342
839999109,1cyclictest28-21ksoftirqd/211:20:182
839999109,1cyclictest28-21ksoftirqd/211:00:222
839999109,1cyclictest28-21ksoftirqd/210:17:252
839999109,1cyclictest28-21ksoftirqd/210:11:022
839999109,1cyclictest28-21ksoftirqd/210:07:082
839999109,1cyclictest28-21ksoftirqd/210:00:112
839999109,1cyclictest28-21ksoftirqd/207:20:202
839999100,9cyclictest10748-21munin-node09:41:472
838599100,8cyclictest22305-21apt-get10:25:120
4202100,0sleep30-21swapper/312:10:373
38302100,0sleep10-21swapper/109:58:231
84069998,1cyclictest35-21ksoftirqd/308:50:003
84069998,1cyclictest1243-21diskmemload10:21:363
83999999,0cyclictest28-21ksoftirqd/210:35:122
83999998,1cyclictest28-21ksoftirqd/211:17:332
83999998,1cyclictest28-21ksoftirqd/211:10:152
83999998,1cyclictest28-21ksoftirqd/210:55:172
83999998,1cyclictest28-21ksoftirqd/210:25:152
83999998,1cyclictest28-21ksoftirqd/209:57:062
83999998,1cyclictest28-21ksoftirqd/209:35:092
83999998,1cyclictest28-21ksoftirqd/208:40:012
83999997,1cyclictest28-21ksoftirqd/211:50:212
83999990,9cyclictest0-21swapper/209:28:272
83859995,2cyclictest240-21systemd-journal12:30:000
83859991,4cyclictest18528-21cat07:30:000
83859990,6cyclictest0-21swapper/010:15:140
83859990,6cyclictest0-21swapper/007:35:110
84069987,1cyclictest35-21ksoftirqd/307:15:013
84069986,1cyclictest11301-21snmpd10:06:433
84069986,1cyclictest11301-21snmpd09:06:203
84069986,1cyclictest11301-21snmpd08:24:373
83999988,0cyclictest28-21ksoftirqd/212:29:052
83999988,0cyclictest28-21ksoftirqd/208:45:192
83999987,1cyclictest28-21ksoftirqd/210:20:122
83999987,1cyclictest28-21ksoftirqd/209:45:152
83999987,1cyclictest28-21ksoftirqd/209:17:222
83999987,1cyclictest28-21ksoftirqd/208:50:202
83999987,1cyclictest28-21ksoftirqd/208:25:182
83999987,1cyclictest28-21ksoftirqd/207:15:192
83999986,1cyclictest28-21ksoftirqd/207:50:192
83999983,4cyclictest18723-21apt-get07:30:112
83999980,8cyclictest0-21swapper/211:05:542
83909981,5cyclictest0-21swapper/110:16:561
83859988,0cyclictest1243-21diskmemload10:36:240
83859986,1cyclictest1243-21diskmemload09:43:450
83859986,1cyclictest11301-21snmpd11:15:000
83859986,1cyclictest11301-21snmpd08:26:250
83859982,5cyclictest11301-21snmpd12:30:050
83859982,4cyclictest21471-21kworker/u8:112:15:450
83859981,6cyclictest6976-21ssh09:16:110
83859981,6cyclictest21019-21ssh10:21:430
83859981,6cyclictest0-21swapper/011:55:330
83859981,6cyclictest0-21swapper/011:13:120
83859980,7cyclictest3353-21ssh11:30:130
83859980,7cyclictest1672-21ssh11:27:090
83859980,1cyclictest0-21swapper/009:36:060
26300280,0sleep30-21swapper/310:30:133
25814280,0sleep30-21swapper/309:44:113
84069976,1cyclictest35-21ksoftirqd/309:20:003
84069976,1cyclictest35-21ksoftirqd/307:20:013
84069976,1cyclictest22816-21ssh11:57:383
84069976,1cyclictest11301-21snmpd08:01:543
84069975,1cyclictest35-21ksoftirqd/311:10:003
84069975,1cyclictest35-21ksoftirqd/307:45:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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