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2026-04-21 - 11:46
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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 Tue Apr 21, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1906721030,0sleep10-21swapper/122:30:311
26852740,0sleep00-21swapper/000:10:160
159402710,2sleep72136799cyclictest00:25:207
324262560,0sleep30-21swapper/322:47:303
272342540,0sleep10-21swapper/123:51:511
150762530,0sleep20-21swapper/222:32:082
35672500,0sleep50-21swapper/523:34:255
236952500,0sleep60-21swapper/623:21:056
59662490,0sleep45968-21kworker/u16:423:56:024
252452480,0sleep30-21swapper/322:00:213
280682470,0sleep40-21swapper/422:02:234
196422470,0sleep00-21swapper/022:34:140
69542460,0sleep60-21swapper/600:26:396
307572460,1sleep530658-21sshd21:40:215
263142460,0sleep70-21swapper/722:00:257
168642460,0sleep721299-21cyclictest22:50:157
67922450,0sleep66791-21systemd-cgroups22:44:216
252282450,2sleep72136799cyclictest23:35:317
19682450,2sleep62135999cyclictest00:24:396
101942450,0sleep00-21swapper/021:17:020
101942450,0sleep00-21swapper/021:17:020
33072440,0sleep73288-21sshd00:01:187
321962440,0sleep60-21swapper/600:15:266
194822440,0sleep30-21swapper/300:14:513
137662440,0sleep40-21swapper/423:11:344
126052440,0sleep50-21swapper/521:28:205
294042430,0sleep1231rcuc/121:56:591
26882430,0sleep4481ktimersoftd/400:19:174
106822430,0sleep10-21swapper/100:30:271
228692420,0sleep30-21swapper/323:55:133
217592420,0sleep40-21swapper/422:28:574
105922420,0sleep010585-21sshd22:26:290
2110124118,8sleep00-21swapper/019:09:000
104272410,0sleep00-21swapper/021:59:380
293342400,1sleep329322-21sshd22:16:473
231642400,0sleep30-21swapper/321:56:373
2114324027,9sleep50-21swapper/519:09:295
2111924027,9sleep30-21swapper/319:09:113
2090824027,9sleep40-21swapper/419:06:234
2090524028,9sleep10-21swapper/119:06:201
2088924028,9sleep70-21swapper/719:06:107
300572390,0sleep50-21swapper/523:10:395
2090623928,8sleep20-21swapper/219:06:212
2086123926,9sleep60-21swapper/619:05:456
177432390,0sleep10-21swapper/100:38:121
14382390,0sleep60-21swapper/600:13:506
132992390,0sleep50-21swapper/521:19:075
132992390,0sleep50-21swapper/521:19:075
308652380,0sleep40-21swapper/421:49:414
201992380,0sleep20-21swapper/200:00:252
106602380,0sleep20-21swapper/222:39:122
88502370,0sleep20-21swapper/223:04:112
312292370,0sleep50-21swapper/500:13:415
175902370,1sleep517592-21grepconf.sh21:21:075
8092360,0sleep40-21swapper/400:10:124
146612360,0sleep00-21swapper/023:40:210
146612360,0sleep00-21swapper/023:40:210
139782340,1sleep713974-21sshd23:18:497
38992300,0sleep63900-21grep23:34:266
21359992510,1cyclictest65-21ksoftirqd/622:32:586
2135999246,3cyclictest65-21ksoftirqd/623:55:466
2135999239,1cyclictest65-21ksoftirqd/600:30:496
2135999237,1cyclictest65-21ksoftirqd/621:25:176
2134499239,1cyclictest49-21ksoftirqd/421:34:414
2135999228,1cyclictest65-21ksoftirqd/622:05:126
2134499228,3cyclictest49-21ksoftirqd/423:17:054
2134499228,3cyclictest49-21ksoftirqd/421:21:304
2134499225,3cyclictest49-21ksoftirqd/421:37:284
21344992211,3cyclictest49-21ksoftirqd/422:24:004
255012210,1sleep61844-21nfsd00:07:576
21359992110,3cyclictest65-21ksoftirqd/623:06:446
21359992110,2cyclictest65-21ksoftirqd/623:15:166
2134499215,3cyclictest49-21ksoftirqd/400:03:494
21344992114,4cyclictest49-21ksoftirqd/421:15:234
21344992114,4cyclictest49-21ksoftirqd/421:15:234
2135999209,3cyclictest65-21ksoftirqd/600:04:466
2135999209,2cyclictest65-21ksoftirqd/621:56:376
2135999208,3cyclictest65-21ksoftirqd/621:20:136
2135999208,1cyclictest65-21ksoftirqd/623:51:466
2135999207,3cyclictest65-21ksoftirqd/622:24:506
2135999206,2cyclictest65-21ksoftirqd/622:39:016
2135999205,1cyclictest65-21ksoftirqd/623:28:426
21359992013,4cyclictest65-21ksoftirqd/621:42:026
21359992010,2cyclictest65-21ksoftirqd/623:43:316
21359992010,2cyclictest65-21ksoftirqd/623:43:316
2135999201,3cyclictest13206-21bash23:49:206
2134499206,1cyclictest49-21ksoftirqd/423:36:044
2134499202,1cyclictest49-21ksoftirqd/423:51:344
21344992016,1cyclictest49-21ksoftirqd/400:32:154
21344992010,4cyclictest49-21ksoftirqd/421:55:404
2131899200,2cyclictest8573-21bash23:49:041
2131899200,2cyclictest8158-21grepconf.sh00:26:431
2131899200,1cyclictest1197-21sshd22:40:221
2135999198,3cyclictest65-21ksoftirqd/622:51:086
2135999197,1cyclictest65-21ksoftirqd/621:16:276
2135999197,1cyclictest65-21ksoftirqd/621:16:276
2135999196,1cyclictest65-21ksoftirqd/623:10:136
21359991914,3cyclictest65-21ksoftirqd/621:14:226
21359991913,4cyclictest65-21ksoftirqd/622:57:056
2134499199,1cyclictest49-21ksoftirqd/421:51:454
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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