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2026-03-13 - 01:21
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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 Fri Mar 13, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
758421400,0sleep50-21swapper/500:01:095
1394421250,0sleep50-21swapper/522:17:465
2082221190,4sleep5138199cyclictest22:39:265
2973121150,4sleep2136499cyclictest22:49:012
2744221150,0sleep10-21swapper/100:00:331
1868921090,0sleep6671rcuc/600:06:156
276952900,2sleep20-21swapper/221:12:592
228452880,0sleep6681ktimersoftd/621:26:256
58402860,0sleep20-21swapper/222:50:532
175982830,1sleep51101-21nfsd23:09:475
42492820,0sleep70-21swapper/721:59:047
42492820,0sleep70-21swapper/721:59:037
60172810,1sleep10-21swapper/100:39:201
301562810,1sleep530116-21sshd23:21:015
220902810,1sleep1221rcuc/100:27:501
220902810,1sleep1221rcuc/100:27:501
203552810,0sleep40-21swapper/422:19:374
189542810,0sleep40-21swapper/423:29:424
116302810,3sleep1231ktimersoftd/123:12:321
116302810,3sleep1231ktimersoftd/123:12:321
318622800,1sleep1221rcuc/123:47:021
28512800,1sleep2679-21dbus-daemon22:14:142
28512800,1sleep2679-21dbus-daemon22:14:132
235422800,0sleep10-21swapper/122:18:141
25502790,0sleep10-21swapper/123:50:151
79972780,0sleep40-21swapper/400:07:174
273362780,1sleep30-21swapper/300:26:323
273362780,1sleep30-21swapper/300:26:323
219322780,0sleep40-21swapper/421:50:444
219322780,0sleep40-21swapper/421:50:434
208722780,1sleep20-21swapper/222:42:272
205232780,1sleep320493-21sshd00:23:113
130382780,0sleep60-21swapper/600:04:316
84472770,1sleep5591ktimersoftd/500:36:195
271802770,0sleep50-21swapper/521:34:175
263502770,0sleep70-21swapper/722:29:017
276082760,0sleep10-21swapper/122:25:591
175182760,0sleep50-21swapper/523:58:365
170592760,1sleep081ktimersoftd/023:34:110
253652750,0sleep60-21swapper/621:44:526
212032750,0sleep70-21swapper/723:32:507
161972750,0sleep00-21swapper/022:40:410
69732740,0sleep10-21swapper/123:15:201
17652740,1sleep081ktimersoftd/022:27:510
135482740,1sleep081ktimersoftd/022:51:150
97432730,0sleep00-21swapper/021:25:470
298272730,1sleep20-21swapper/222:09:252
251312730,0sleep40-21swapper/422:33:314
92212720,0sleep50-21swapper/500:21:055
168972720,2sleep50-21swapper/522:08:485
90462710,0sleep30-21swapper/323:27:413
21302710,0sleep40-21swapper/421:28:324
82142700,2sleep68185-21sshd21:10:306
183462700,1sleep5581rcuc/500:06:145
119862700,0sleep70-21swapper/722:48:097
39812690,0sleep31038-21sshd22:46:123
194462690,0sleep10-21swapper/122:56:051
178872690,1sleep5591ktimersoftd/523:54:035
282082680,1sleep128179-21sshd00:23:331
265512680,0sleep20-21swapper/200:31:032
200672680,0sleep50-21swapper/522:04:235
200672680,0sleep50-21swapper/522:04:235
292802670,0sleep00-21swapper/022:33:440
220102670,0sleep70-21swapper/700:23:157
296882660,1sleep080350irq/26-eno1-tx-23:11:510
296882660,1sleep080350irq/26-eno1-tx-23:11:510
146202660,0sleep70-21swapper/721:30:357
87602650,0sleep40-21swapper/421:12:044
94232630,0sleep50-21swapper/521:51:415
94232630,0sleep50-21swapper/521:51:415
122362630,2sleep2136499cyclictest23:33:572
24372600,0sleep30-21swapper/321:16:203
102725949,6sleep40-21swapper/419:09:084
327012580,0sleep10-21swapper/123:37:571
313492580,4sleep7139499cyclictest22:14:037
313492580,4sleep7139499cyclictest22:14:027
98225443,7sleep70-21swapper/719:08:387
165142540,0sleep50-21swapper/500:18:245
106225242,6sleep30-21swapper/319:09:313
3260024928,7sleep00-21swapper/019:05:180
7362480,1sleep7771ktimersoftd/721:14:487
110824827,6sleep50-21swapper/519:09:485
106024838,6sleep10-21swapper/119:09:281
220032440,0sleep6681ktimersoftd/623:35:536
72824328,9sleep20-21swapper/219:05:452
99024230,7sleep60-21swapper/619:08:456
47242410,0sleep70-21swapper/723:06:057
1368993314,16cyclictest0-21swapper/321:53:573
1368993314,16cyclictest0-21swapper/321:53:573
1368993214,16cyclictest0-21swapper/323:33:233
207142280,0sleep70-21swapper/700:15:307
120872280,0sleep20-21swapper/221:38:072
70192270,1sleep17016-21sshd23:24:341
137499274,21cyclictest0-21swapper/423:15:184
135799261,19cyclictest0-21swapper/121:37:411
135799260,22cyclictest0-21swapper/120:22:271
43482250,0sleep10-21swapper/122:47:471
285022250,0sleep628506-21systemd-cgroups22:38:156
136899253,19cyclictest0-21swapper/323:17:053
136899250,21cyclictest0-21swapper/322:42:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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