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2026-04-07 - 18:36
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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 Tue Apr 07, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2262021270,2sleep33014199cyclictest12:19:413
2498221030,0sleep024983-21bash11:32:360
2741121020,2sleep03012199cyclictest12:22:500
15882970,0sleep11589-21sshd09:51:191
303292580,0sleep20-21swapper/210:46:032
12582570,0sleep00-21swapper/010:18:490
318632560,0sleep10-21swapper/109:31:281
107262560,0sleep10-21swapper/109:38:261
263872550,0sleep00-21swapper/012:06:000
8342540,0sleep20-21swapper/209:37:342
41782530,0sleep30-21swapper/311:36:193
287912530,0sleep20-21swapper/212:28:342
185432530,1sleep0674-21dbus-daemon12:27:400
147612530,0sleep00-21swapper/009:49:470
158322520,0sleep10-21swapper/111:34:371
93762510,0sleep20-21swapper/211:25:422
263942510,1sleep326395-21bash09:19:083
199942510,0sleep20-21swapper/209:58:252
190442510,0sleep00-21swapper/009:22:070
261732500,0sleep20-21swapper/210:07:102
215892500,0sleep30-21swapper/311:01:593
267262490,0sleep10-21swapper/109:59:001
260652490,0sleep326068-21bash10:59:383
232922490,1sleep1241ktimersoftd/111:29:451
200452490,1sleep1241ktimersoftd/112:22:111
184642490,0sleep00-21swapper/011:23:460
36212480,0sleep20-21swapper/210:54:572
307982470,0sleep30-21swapper/311:58:073
88212460,0sleep00-21swapper/012:12:530
25382460,0sleep30-21swapper/310:05:113
218042460,0sleep00-21swapper/009:30:150
283872430,2sleep33014199cyclictest11:46:453
28902350,0sleep10-21swapper/112:26:171
299382277,6sleep00-21swapper/007:09:130
2979022716,7sleep10-21swapper/107:07:261
2975222614,7sleep30-21swapper/307:06:563
297022268,6sleep20-21swapper/207:06:192
272372220,1sleep2674-21dbus-daemon09:34:222
54802200,0sleep10-21swapper/111:00:331
30121991918,0cyclictest527-40kipmi010:06:350
30121991716,0cyclictest6785-21lspci10:00:040
166892170,0sleep30-21swapper/309:52:373
112672170,0sleep00-21swapper/012:35:200
42842160,0sleep20-21swapper/212:18:042
30135991616,0cyclictest321ktimersoftd/210:21:092
62132150,0sleep30-21swapper/311:06:113
30135991515,0cyclictest321ktimersoftd/211:58:102
3012699150,10cyclictest1026-21sshd11:08:481
30121991514,0cyclictest24431-21lspci09:53:180
18522150,0sleep10-21swapper/109:45:511
110812150,0sleep30-21swapper/312:29:503
70672140,0sleep2321ktimersoftd/210:41:192
309352140,0sleep20-21swapper/210:29:382
30135991414,0cyclictest321ktimersoftd/207:14:472
30121991413,0cyclictest101ktimersoftd/009:19:400
30121991412,1cyclictest608-21lspci10:57:240
30121991412,1cyclictest18116-21lspci12:02:340
30121991412,1cyclictest16024-21kworker/0:111:42:110
30121991412,1cyclictest16024-21kworker/0:111:42:100
210322140,0sleep10-21swapper/111:23:591
186772140,0sleep00-21swapper/011:26:310
154742140,0sleep3391rcuc/311:34:353
8582130,0sleep00-21swapper/010:13:170
77992130,0sleep37802-21bash11:17:203
39882130,0sleep10-21swapper/111:11:301
3013599132,1cyclictest33-21ksoftirqd/212:14:232
3013599131,1cyclictest121rcu_preempt11:01:402
3013599130,1cyclictest12193-21rm09:52:142
3012699130,12cyclictest22691-21grep10:37:091
30121991312,0cyclictest607-21lspci11:11:130
30121991312,0cyclictest31740-21lspci10:51:450
30121991312,0cyclictest12752-21kworker/0:109:11:330
178252130,0sleep3391rcuc/309:21:583
3014199128,3cyclictest660-21avahi-daemon12:14:443
30141991210,1cyclictest0-21swapper/309:45:163
3014199120,11cyclictest31771-21lspci12:03:453
3013599124,1cyclictest33-21ksoftirqd/210:11:172
3013599122,1cyclictest33-21ksoftirqd/210:04:092
30135991211,0cyclictest33-21ksoftirqd/212:36:182
30135991211,0cyclictest22082-21lspci12:02:552
30135991210,1cyclictest33-21ksoftirqd/211:35:152
30135991210,1cyclictest13422-21sshd11:45:252
3013599120,11cyclictest29357-21lspci11:52:242
3013599120,11cyclictest0-21swapper/211:11:242
3013599120,11cyclictest0-21swapper/211:07:542
3012699120,11cyclictest7261-21sshd11:53:181
30121991212,0cyclictest101ktimersoftd/009:38:000
30121991211,0cyclictest7884-21kworker/0:212:34:100
30121991211,0cyclictest26788-21kworker/0:211:00:540
30121991210,1cyclictest5578-21kworker/0:011:52:350
30121991210,1cyclictest11691-21kworker/0:311:58:160
3012199120,4cyclictest23889-21kworker/0:412:17:270
227062120,0sleep00-21swapper/010:20:340
3014199119,1cyclictest1997-21lspci12:20:363
30141991110,0cyclictest0-21swapper/310:50:153
3014199110,10cyclictest0-21swapper/310:39:163
3013599119,1cyclictest16418-21sshd12:33:042
3013599119,1cyclictest0-21swapper/212:05:242
3013599112,1cyclictest33-21ksoftirqd/209:40:082
3013599111,1cyclictest33-21ksoftirqd/211:33:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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