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2026-03-11 - 12:48
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot0.osadl.org (updated Wed Mar 11, 2026 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
516221420,4sleep11399799cyclictest21:12:431
2770621200,0sleep60-21swapper/623:54:466
731221120,1sleep51012-21runrttasks22:44:485
2896221110,0sleep00-21swapper/022:42:510
2431421100,0sleep30-21swapper/322:49:513
218642900,0sleep3401rcuc/300:08:533
64262850,0sleep20-21swapper/223:19:152
145082840,1sleep50-21swapper/500:30:205
94942830,1sleep01-21systemd21:44:310
86252820,0sleep00-21swapper/023:17:530
284572820,4sleep71403599cyclictest00:06:177
169532820,3sleep71403599cyclictest22:55:157
116332820,1sleep60-21swapper/600:33:186
96362810,1sleep60-21swapper/622:18:596
74712810,0sleep70-21swapper/723:48:067
255632810,1sleep725541-21sshd22:44:107
41782800,0sleep70-21swapper/722:53:167
235812800,1sleep6671rcuc/623:55:596
169072800,0sleep40-21swapper/423:34:084
109842800,4sleep31400899cyclictest21:15:483
262142790,1sleep326179-21sshd21:10:443
65812780,0sleep40-21swapper/400:11:034
195932780,0sleep40-21swapper/421:43:324
51232770,0sleep50-21swapper/521:42:515
283252770,0sleep70-21swapper/700:27:587
270112770,1sleep00-21swapper/023:08:400
270112770,1sleep00-21swapper/023:08:400
268842770,1sleep00-21swapper/021:49:370
172872770,0sleep2321ktimersoftd/221:19:002
93082760,0sleep20-21swapper/221:53:072
93082760,0sleep20-21swapper/221:53:072
46202760,3sleep01399199cyclictest21:11:130
151392760,1sleep70-21swapper/721:26:037
70202750,0sleep7761rcuc/722:05:557
43142750,1sleep04308-21sshd23:29:160
293592750,0sleep40-21swapper/422:05:284
273602750,1sleep3411ktimersoftd/300:19:123
273602750,1sleep3411ktimersoftd/300:19:123
236272750,1sleep40-21swapper/421:29:214
213912750,1sleep621393-21kworker/u16:222:52:356
132502750,0sleep30-21swapper/323:38:163
198542740,1sleep30-21swapper/323:58:433
236662730,0sleep60-21swapper/622:28:146
172652730,1sleep50-21swapper/523:34:085
120622730,0sleep60-21swapper/622:57:566
32282720,0sleep20-21swapper/222:37:232
255352720,0sleep10-21swapper/121:45:131
21362720,0sleep00-21swapper/022:08:360
209652720,0sleep20-21swapper/200:07:252
202022720,1sleep620169-21sshd21:49:196
19312720,0sleep40-21swapper/421:35:304
28872710,1sleep22884-21sshd00:22:242
28872710,1sleep22884-21sshd00:22:242
240252710,3sleep01399199cyclictest00:30:470
56632700,0sleep20-21swapper/223:49:292
324902690,0sleep50-21swapper/522:58:515
263112690,1sleep10-21swapper/121:58:101
155662690,4sleep41401499cyclictest21:57:424
75252680,0sleep7771ktimersoftd/700:34:397
204982680,0sleep40-21swapper/422:51:034
181882680,0sleep30-21swapper/321:52:043
181882680,0sleep30-21swapper/321:52:033
158412680,4sleep71403599cyclictest21:17:297
139682680,0sleep10-21swapper/123:23:561
121702680,0sleep40-21swapper/422:01:504
299212670,0sleep50-21swapper/522:54:265
257362670,0sleep30-21swapper/322:05:193
131962660,0sleep20-21swapper/221:25:582
128912620,0sleep40-21swapper/400:18:334
128912620,0sleep40-21swapper/400:18:334
292812610,1sleep70-21swapper/721:42:307
220852610,0sleep30-21swapper/321:55:093
202552610,1sleep120230-21sshd22:25:111
58262560,0sleep10-21swapper/122:43:161
1370825544,7sleep70-21swapper/719:09:117
1340625039,6sleep40-21swapper/419:05:244
1351124926,7sleep30-21swapper/319:06:353
1172924939,6sleep60-21swapper/619:05:016
1349124827,7sleep20-21swapper/219:06:262
1375824737,6sleep10-21swapper/119:09:451
1374824535,6sleep00-21swapper/019:09:360
217752440,1sleep121774-21sshd21:37:521
1356924434,6sleep50-21swapper/519:07:245
26932290,1sleep70-21swapper/722:00:027
1402499283,23cyclictest0-21swapper/622:24:316
43672270,0sleep50-21swapper/522:37:275
319172270,0sleep50-21swapper/523:26:085
28442260,1sleep40-21swapper/422:11:284
1402099263,21cyclictest0-21swapper/521:13:335
257562250,1sleep20-21swapper/221:23:422
15182250,5sleep081ktimersoftd/022:18:380
1402099253,21cyclictest0-21swapper/520:17:125
1400399250,21cyclictest0-21swapper/220:55:142
24052240,1sleep20-21swapper/222:54:392
172152240,3sleep31400899cyclictest21:29:033
1402499242,21cyclictest0-21swapper/619:29:276
1402499240,23cyclictest0-21swapper/620:50:586
1402499240,19cyclictest0-21swapper/619:35:186
1402099243,18cyclictest0-21swapper/519:42:165
1402099243,17cyclictest0-21swapper/522:02:305
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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