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2026-04-17 - 19:38
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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 Fri Apr 17, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1290121020,0sleep00-21swapper/011:14:250
9342660,1sleep1930-21bash11:56:331
97822590,0sleep20-21swapper/209:49:362
287002590,0sleep00-21swapper/011:18:580
273342570,1sleep30-21swapper/311:55:583
313812550,1sleep20-21swapper/210:24:492
128022540,0sleep20-21swapper/210:06:272
128022540,0sleep20-21swapper/210:06:272
77162530,0sleep30-21swapper/309:28:433
244032530,1sleep324399-21bash11:09:273
30322520,0sleep10-21swapper/109:51:431
292742520,0sleep10-21swapper/110:10:381
292742520,0sleep10-21swapper/110:10:371
20302520,0sleep30-21swapper/312:28:153
189502520,0sleep30-21swapper/312:04:123
127502520,0sleep10-21swapper/109:44:191
118512510,1sleep1241ktimersoftd/111:48:071
43442490,0sleep1231rcuc/110:05:411
43442490,0sleep1231rcuc/110:05:401
12932490,0sleep00-21swapper/009:40:280
66102480,0sleep3391rcuc/309:38:153
174292480,0sleep20-21swapper/210:51:292
149422470,0sleep20-21swapper/209:33:262
273252460,0sleep30-21swapper/309:23:093
64482430,0sleep30-21swapper/310:44:563
149692390,0sleep20-21swapper/212:15:162
107642390,0sleep10-21swapper/109:17:111
42962370,2sleep33011399cyclictest09:46:173
266722340,0sleep30-21swapper/312:21:583
5442320,1sleep13011199cyclictest12:02:281
282022298,7sleep10-21swapper/107:05:061
186232290,0sleep318622-21bash11:24:293
2965222210,7sleep30-21swapper/307:05:433
2964122210,7sleep20-21swapper/207:05:342
2971822110,7sleep00-21swapper/007:06:330
229682210,1sleep2699-21gdbus12:24:292
30111991918,0cyclictest27887-21lspci10:24:291
12622190,0sleep20-21swapper/212:36:302
266542180,1sleep01-21systemd11:59:000
123922180,0sleep00-21swapper/010:34:150
266512170,0sleep00-21swapper/010:27:070
72212160,0sleep20-21swapper/212:14:392
305902160,3sleep030585-21lspci10:35:440
30111991615,0cyclictest26466-21kworker/1:210:56:351
141002160,0sleep30-21swapper/310:23:183
30111991515,0cyclictest22398-21kworker/1:411:31:061
30111991515,0cyclictest1976-21kworker/1:211:23:591
30111991514,0cyclictest241ktimersoftd/112:17:541
30111991514,0cyclictest14329-21kworker/1:110:45:511
264062150,0sleep226407-21sshd10:49:282
252602150,1sleep025261-21grepconf.sh09:34:200
249942150,1sleep019852-1kworker/0:0H12:35:450
3011399142,11cyclictest699-21gdbus10:55:223
30111991414,0cyclictest527-40kipmi012:11:211
30111991414,0cyclictest22398-21kworker/1:411:40:061
30111991413,0cyclictest6626-21kworker/1:309:12:451
30111991413,0cyclictest25283-21kworker/1:009:26:271
30111991413,0cyclictest25283-21kworker/1:009:21:061
226392140,0sleep122641-21bash11:15:151
223552140,0sleep20-21swapper/209:53:242
216612140,0sleep30-21swapper/311:52:223
208992140,0sleep10-21swapper/109:39:291
48602130,0sleep34857-21lspci10:11:203
48602130,0sleep34857-21lspci10:11:193
30772130,0sleep20-21swapper/208:40:122
3011399130,12cyclictest2141-21id09:43:233
30112991311,1cyclictest0-21swapper/211:00:302
30111991313,0cyclictest21354-21kworker/1:011:26:031
30111991312,0cyclictest25707-21lspci10:27:021
30111991312,0cyclictest14812-21kworker/1:412:21:321
3011199131,1cyclictest25-21ksoftirqd/111:06:271
3010799134,8cyclictest16581-21munin-run07:55:000
279832130,0sleep10-21swapper/110:41:061
177462130,1sleep017748-21bash09:55:430
177022130,2sleep0642-21systemd-logind10:18:020
93622120,0sleep20-21swapper/212:31:382
30113991210,1cyclictest14562-21bash11:41:333
3011399120,11cyclictest0-21swapper/309:53:123
3011299126,2cyclictest674-21dbus-daemon10:59:592
30112991210,1cyclictest0-21swapper/209:11:192
3011299120,1cyclictest32043-21lspci09:43:102
3011299120,11cyclictest30274-21sshd11:59:202
3011199125,1cyclictest25-21ksoftirqd/110:32:181
30111991212,0cyclictest6626-21kworker/1:309:05:201
30111991211,1cyclictest14812-21kworker/1:412:31:361
30111991211,0cyclictest17395-21lspci10:01:151
30111991211,0cyclictest17391-21lspci09:58:311
30111991210,1cyclictest25-21ksoftirqd/112:27:081
3011199120,11cyclictest2224-21lspci09:48:571
3010799120,1cyclictest0-21swapper/009:18:460
246942120,0sleep11-21systemd10:18:391
3011399119,1cyclictest674-21dbus-daemon12:08:233
3011399110,10cyclictest0-21swapper/312:36:023
3011399110,10cyclictest0-21swapper/310:46:033
3011399110,10cyclictest0-21swapper/310:34:023
3011299119,1cyclictest19787-21bash10:04:192
3011299110,10cyclictest0-21swapper/211:26:302
3011299110,0cyclictest0-21swapper/210:17:392
3011199114,1cyclictest25-21ksoftirqd/110:50:401
3011199114,1cyclictest25-21ksoftirqd/110:35:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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