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2026-03-14 - 21:39
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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 rack2slot0.osadl.org (updated Sat Mar 14, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2986321010,2sleep02501499cyclictest12:08:350
189352990,2sleep12502099cyclictest11:07:241
287562900,0sleep20-21swapper/211:16:262
161362870,0sleep316135-21lspci11:53:443
63262610,0sleep16320-21sshd11:55:341
298472560,0sleep30-21swapper/309:18:563
305772550,2sleep02501499cyclictest10:43:480
297612550,0sleep30-21swapper/311:16:313
190362550,0sleep00-21swapper/011:21:050
77472540,1sleep17745-21sshd12:17:411
283212540,1sleep228320-21bash10:35:212
232212540,0sleep00-21swapper/010:04:320
314952530,0sleep20-21swapper/211:08:292
18852530,1sleep21884-21grep11:11:252
36402520,0sleep00-21swapper/011:58:090
221152520,0sleep20-21swapper/209:28:402
196902520,0sleep00-21swapper/009:33:070
147922520,0sleep00-21swapper/009:39:310
45872510,0sleep20-21swapper/210:02:282
4272490,0sleep20-21swapper/212:22:352
308482490,1sleep130842-21lspci10:51:581
122202490,0sleep30-21swapper/312:37:193
164662480,0sleep30-21swapper/309:36:103
149602480,0sleep30-21swapper/310:23:243
78762460,0sleep0111rcuc/007:45:110
268822420,2sleep22502399cyclictest11:35:242
320222410,0sleep10-21swapper/112:11:281
186052370,0sleep3391rcuc/311:32:013
216652360,1sleep221655-21sshd12:27:072
248762309,7sleep10-21swapper/107:09:421
245702308,7sleep20-21swapper/207:05:502
248192297,7sleep30-21swapper/307:09:003
202022220,0sleep20-21swapper/209:40:062
245682219,7sleep00-21swapper/007:05:480
21922210,1sleep0111rcuc/012:20:000
2502499182,5cyclictest5334-21sshd12:06:283
70692170,0sleep30-21swapper/309:45:273
34672170,0sleep10-21swapper/109:25:191
307902170,1sleep0674-21dbus-daemon10:19:090
272352160,0sleep20-21swapper/210:48:582
25020991614,1cyclictest494-21kworker/1:412:35:351
60762150,1sleep26024-21sshd09:35:092
59242150,0sleep30-21swapper/310:30:453
28112150,0sleep00-21swapper/012:28:170
275792150,0sleep00-21swapper/010:49:010
2502499152,3cyclictest19898-21sshd11:56:463
25024991511,3cyclictest1-21systemd11:41:533
25020991514,0cyclictest6232-21kworker/1:112:20:291
25020991514,0cyclictest24383-21kworker/1:111:31:271
213392150,1sleep2311rcuc/210:34:542
139682150,0sleep013949-21sshd11:53:330
133752150,0sleep20-21swapper/211:59:002
323842140,0sleep30-21swapper/309:30:183
2502499142,2cyclictest10819-21sshd10:55:433
25020991413,0cyclictest29326-21kworker/1:010:55:131
25020991413,0cyclictest241ktimersoftd/111:44:371
25020991413,0cyclictest15158-21lspci09:46:221
25020991412,1cyclictest4011-21lspci09:55:281
25020991412,1cyclictest25393-21kworker/1:110:34:351
236672140,0sleep30-21swapper/310:07:583
153332140,0sleep10-21swapper/110:20:381
14922140,0sleep01495-21bash09:48:250
106662140,0sleep30-21swapper/310:50:163
89782130,0sleep08980-21bash11:28:300
2502499134,3cyclictest674-21dbus-daemon10:48:173
2502499134,3cyclictest674-21dbus-daemon09:24:493
2502499134,3cyclictest25187-21grepconf.sh12:30:123
2502499134,2cyclictest9648-21id10:25:363
2502499134,2cyclictest9648-21id10:25:363
2502499133,5cyclictest6227-21grep11:00:483
2502499133,3cyclictest3775-21sshd11:11:353
2502499133,3cyclictest3390-21id11:08:513
2502499133,3cyclictest30598-21grepconf.sh12:25:103
2502499133,3cyclictest29979-21gdbus11:25:343
2502499133,3cyclictest24021-21cp12:24:373
2502499133,3cyclictest22886-21grep10:43:083
2502499133,2cyclictest15101-21rm10:37:013
2502499132,6cyclictest28235-21sshd11:49:183
2502499132,3cyclictest642-21systemd-logind11:24:003
2502499132,3cyclictest642-21systemd-logind10:17:583
25023991312,0cyclictest28521-21lspci11:24:432
25020991312,0cyclictest527-40kipmi011:04:471
25020991312,0cyclictest30633-21kworker/1:410:42:551
25020991312,0cyclictest30633-21kworker/1:410:27:391
25020991312,0cyclictest30633-21kworker/1:410:27:391
25020991311,1cyclictest27980-21lspci10:38:071
25020991311,1cyclictest17387-21kworker/1:211:22:471
2501499130,12cyclictest674-21dbus-daemon10:52:360
2502499123,6cyclictest2630-21sshd12:11:453
2502499123,3cyclictest1863-21sshd09:51:503
2502499122,4cyclictest1-21systemd09:59:533
2502499122,3cyclictest602-21bash12:17:043
2502499121,10cyclictest0-21swapper/309:00:123
25024991210,1cyclictest0-21swapper/312:00:533
2502499120,1cyclictest29979-21gdbus10:10:333
2502399120,11cyclictest424-21lspci11:00:202
2502399120,11cyclictest1667-21bash11:25:102
2502099124,1cyclictest25-21ksoftirqd/111:35:121
25020991212,0cyclictest25893-21kworker/1:411:47:231
25020991211,0cyclictest3441-21kworker/1:210:08:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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