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2026-03-15 - 21:17
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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 50 highest latencies:
System rack5slot0.osadl.org (updated Sun Mar 15, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2370821220,3sleep223706-21sshd11:14:442
463721070,2sleep10-21swapper/109:24:511
489321000,4sleep31177399cyclictest09:34:313
54072980,1sleep22023-21nfsd11:41:162
1113529732,56sleep30-21swapper/307:05:243
1149629626,41sleep10-21swapper/107:09:391
152642900,2sleep30-21swapper/310:53:493
95812870,2sleep20-21swapper/210:38:172
134282850,2sleep20-21swapper/210:43:462
104172840,0sleep010413-21bash12:21:340
288732830,2sleep20-21swapper/209:57:222
153772810,2sleep30-21swapper/310:24:353
307012800,1sleep30-21swapper/311:10:403
174602800,0sleep00-21swapper/010:49:170
235762780,3sleep31177399cyclictest09:37:113
185492780,2sleep30-21swapper/311:04:073
52842770,2sleep20-21swapper/211:36:202
30342750,1sleep20-21swapper/209:39:032
75562730,0sleep00-21swapper/012:01:180
295142730,0sleep00-21swapper/010:07:090
213702720,3sleep11176499cyclictest11:48:451
196352720,2sleep119618-21sshd10:15:201
81982690,1sleep10-21swapper/110:38:041
57102690,2sleep30-21swapper/310:27:573
122042590,3sleep11176499cyclictest12:36:421
1135525136,11sleep20-21swapper/207:08:032
1136825036,11sleep00-21swapper/007:08:140
85232370,0sleep00-21swapper/011:02:320
242352340,8sleep30-21swapper/310:01:283
208932340,0sleep00-21swapper/009:12:480
99782330,31sleep1144650irq/27-eth011:56:471
177712320,2sleep20-21swapper/209:45:552
112152320,2sleep147-21rcuop/311:27:301
308422310,29sleep3144650irq/27-eth009:52:523
233442290,2sleep123339-21sshd09:37:101
258502280,0sleep00-21swapper/012:28:590
258502280,0sleep00-21swapper/012:28:590
4302270,3sleep20-21swapper/209:33:502
279372260,2sleep10-21swapper/109:13:541
268982260,2sleep20-21swapper/211:25:022
1176999260,9cyclictest144650irq/27-eth009:50:302
116892240,0sleep00-21swapper/009:59:450
86302230,2sleep10-21swapper/109:30:121
79892230,2sleep22023-21nfsd10:47:472
139872230,2sleep113989-21cpuspeed_turbos09:55:121
1176999230,13cyclictest16392-21sshd10:10:102
1176999230,12cyclictest14522-21sshd09:40:342
264012220,2sleep20-21swapper/212:38:592
15942221,19sleep3144650irq/27-eth011:45:353
1176999224,8cyclictest27393-21sshd10:21:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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