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2026-04-16 - 09:54
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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 rack3slot0.osadl.org (updated Thu Apr 16, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207319914647,79cyclictest492-21systemd-journal21:34:080
20780999334,22cyclictest686-21dbus-daemon21:34:096
321632880,2sleep02073199cyclictest22:57:590
171562810,0sleep20-21swapper/223:37:582
203472740,0sleep70-21swapper/722:57:187
65442510,0sleep60-21swapper/621:12:416
314992510,0sleep10-21swapper/100:32:351
193702500,0sleep30-21swapper/321:37:293
86352490,1sleep0686-21dbus-daemon21:47:590
2053624926,8sleep30-21swapper/319:05:073
2046524827,8sleep50-21swapper/519:04:135
30292470,0sleep40-21swapper/423:13:014
173412470,0sleep50-21swapper/521:15:125
290912460,0sleep01-21systemd22:52:140
290912460,0sleep01-21systemd22:52:140
195652460,0sleep50-21swapper/523:26:555
56402450,0sleep40-21swapper/422:08:134
216782450,0sleep50-21swapper/522:24:005
18282450,0sleep40-21swapper/421:27:124
160122450,0sleep10-21swapper/121:39:111
53802440,0sleep20-21swapper/221:58:582
32922440,0sleep665-21ksoftirqd/623:35:216
211802440,0sleep10-21swapper/123:32:361
182722440,0sleep10-21swapper/122:44:141
169912440,0sleep20-21swapper/221:44:492
263442430,0sleep00-21swapper/021:56:240
2075699430,42cyclictest25013-21kworker/3:121:34:093
140912430,0sleep60-21swapper/622:27:136
76952420,0sleep50-21swapper/500:18:135
294662420,0sleep40-21swapper/400:13:564
290522420,0sleep50-21swapper/522:15:115
238912420,0sleep50-21swapper/520:06:025
2052624230,9sleep40-21swapper/419:05:004
38612410,0sleep20-21swapper/222:32:142
28132410,0sleep40-21swapper/400:16:044
2074699410,40cyclictest32676-21kworker/2:221:34:082
91552400,0sleep40-21swapper/422:52:584
91552400,0sleep40-21swapper/422:52:584
303062400,0sleep10-21swapper/122:35:411
297912400,0sleep1241ktimersoftd/122:09:381
281052400,0sleep50-21swapper/523:21:515
2054024027,9sleep70-21swapper/719:05:117
2041324029,8sleep10-21swapper/119:03:291
277692390,0sleep20-21swapper/200:17:302
2054423928,8sleep20-21swapper/219:05:142
2046923926,9sleep00-21swapper/019:04:160
203992390,0sleep00-21swapper/023:41:480
203992390,0sleep00-21swapper/023:41:480
2039823926,9sleep60-21swapper/619:03:186
183622390,0sleep60-21swapper/623:25:046
27712380,0sleep20-21swapper/222:22:532
204822380,0sleep40-21swapper/423:23:184
19732380,0sleep40-21swapper/400:27:094
109572380,0sleep70-21swapper/723:56:057
115722370,0sleep00-21swapper/023:26:260
20765993635,1cyclictest1362-21kworker/4:421:34:084
305672350,2sleep62078099cyclictest21:49:176
2077299340,34cyclictest1037-21kworker/5:021:34:085
2077299333,24cyclictest14449-21kworker/5:223:55:555
188782330,1sleep341-21ksoftirqd/322:44:163
155692330,0sleep30-21swapper/321:26:073
83382290,0sleep30-21swapper/323:24:293
2078899279,3cyclictest73-21ksoftirqd/723:09:157
20788992712,3cyclictest73-21ksoftirqd/723:11:277
20788992612,4cyclictest73-21ksoftirqd/723:00:597
20772992617,4cyclictest57-21ksoftirqd/500:31:165
2078899255,3cyclictest73-21ksoftirqd/722:48:537
20788992510,2cyclictest73-21ksoftirqd/722:55:187
20788992510,2cyclictest73-21ksoftirqd/722:55:187
20731992516,4cyclictest9-21ksoftirqd/021:13:050
2078899249,2cyclictest73-21ksoftirqd/721:29:087
2078899239,3cyclictest73-21ksoftirqd/721:32:467
2078899239,2cyclictest73-21ksoftirqd/722:16:377
2078899238,3cyclictest73-21ksoftirqd/700:26:567
2078899238,1cyclictest73-21ksoftirqd/700:05:177
20788992313,1cyclictest73-21ksoftirqd/723:29:227
20788992310,3cyclictest73-21ksoftirqd/722:00:557
2078899229,3cyclictest73-21ksoftirqd/723:44:097
2078899229,3cyclictest73-21ksoftirqd/723:44:097
2078899227,3cyclictest73-21ksoftirqd/721:11:527
2078899226,1cyclictest73-21ksoftirqd/722:42:267
2078899226,1cyclictest73-21ksoftirqd/722:31:207
2078899225,3cyclictest73-21ksoftirqd/721:21:557
20788992213,1cyclictest73-21ksoftirqd/722:08:037
20788992212,1cyclictest73-21ksoftirqd/722:36:587
20788992211,2cyclictest73-21ksoftirqd/721:44:537
20788992210,3cyclictest73-21ksoftirqd/723:51:047
2078899221,2cyclictest121rcu_preempt00:33:337
20739992220,1cyclictest21673-21kworker/1:221:34:091
235452210,0sleep623530-21sshd21:26:346
2078899219,3cyclictest73-21ksoftirqd/723:18:417
2078899219,3cyclictest73-21ksoftirqd/721:49:357
2078899219,2cyclictest73-21ksoftirqd/700:14:297
2078899218,3cyclictest73-21ksoftirqd/700:17:287
2078899217,1cyclictest73-21ksoftirqd/721:56:017
2078899216,2cyclictest73-21ksoftirqd/700:09:527
20788992110,3cyclictest73-21ksoftirqd/723:48:477
20788992110,3cyclictest73-21ksoftirqd/723:48:477
20788992110,3cyclictest73-21ksoftirqd/721:40:157
20788992110,3cyclictest73-21ksoftirqd/700:23:367
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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