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2026-04-14 - 16:48
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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
Characteristics of the 100 highest latencies:
System rack2slot0.osadl.org (updated Tue Apr 14, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16772970,1sleep11676-21grepconf.sh10:26:381
137992740,0sleep20-21swapper/209:37:582
140142620,0sleep10-21swapper/109:49:011
197292600,0sleep30-21swapper/309:49:323
61742560,0sleep20-21swapper/209:42:492
94432550,1sleep19444-21bash09:12:011
269822550,0sleep10-21swapper/109:25:541
257902550,1sleep2321ktimersoftd/210:01:012
157742550,0sleep10-21swapper/112:16:131
72342530,2sleep0677599cyclictest09:31:220
19762530,0sleep00-21swapper/012:34:540
146622530,0sleep10-21swapper/111:37:001
60752520,0sleep10-21swapper/111:16:491
228482520,1sleep233-21ksoftirqd/211:04:282
179932520,0sleep00-21swapper/010:16:570
186812510,0sleep20-21swapper/212:36:182
181172510,1sleep03165-21kworker/0:411:15:080
174512510,0sleep30-21swapper/312:24:563
267302500,0sleep30-21swapper/312:00:183
26562500,2sleep2677899cyclictest10:37:492
119952500,1sleep111987-21lspci12:27:151
288682490,0sleep10-21swapper/110:59:271
245102490,0sleep124513-21sshd11:07:211
233712490,0sleep30-21swapper/312:36:433
134952490,1sleep3391rcuc/311:00:493
240152480,0sleep30-21swapper/312:08:303
172532480,1sleep317249-21bash09:40:583
158462480,0sleep10-21swapper/110:50:011
130272480,0sleep30-21swapper/310:30:213
182842470,0sleep20-21swapper/209:32:442
111452470,0sleep2311rcuc/211:31:092
60362460,0sleep30-21swapper/311:19:403
23172450,0sleep00-21swapper/009:15:080
161242450,0sleep00-21swapper/012:36:030
262032440,0sleep20-21swapper/210:56:232
135112420,2sleep2677899cyclictest09:46:102
662223921,6sleep20-21swapper/207:09:262
631423019,7sleep10-21swapper/107:05:361
659422716,7sleep30-21swapper/307:09:073
101962240,1sleep010195-21sshd10:21:490
74662230,0sleep10-21swapper/109:15:371
647622211,7sleep00-21swapper/007:07:400
116552200,0sleep00-21swapper/010:13:400
53032180,1sleep05300-21sshd11:50:080
54342170,0sleep1231rcuc/111:44:371
282032170,0sleep20-21swapper/210:06:452
6777991615,0cyclictest241ktimersoftd/108:25:161
6777991614,1cyclictest9356-21kworker/1:409:50:171
6777991614,1cyclictest0-21swapper/111:20:391
189332160,0sleep10-21swapper/110:17:011
677999150,1cyclictest0-21swapper/310:38:223
6777991514,0cyclictest26267-21lspci11:32:281
56252150,1sleep3391rcuc/309:15:233
34572150,1sleep03453-21lspci09:42:350
275402150,0sleep30-21swapper/310:26:053
157192150,0sleep215393-21sshd12:05:002
6777991414,0cyclictest4914-21kworker/1:109:55:391
6777991413,0cyclictest18794-21kworker/1:011:27:211
260042140,0sleep10-21swapper/111:13:001
86372130,0sleep20-21swapper/209:27:402
677999131,1cyclictest11972-21id09:24:133
677999130,12cyclictest24190-21bash10:00:533
6777991313,0cyclictest27113-21kworker/1:411:04:391
6777991313,0cyclictest241ktimersoftd/109:31:211
6777991313,0cyclictest12358-21kworker/1:112:33:031
6777991312,1cyclictest8985-21kworker/1:210:34:531
6777991312,1cyclictest25580-21kworker/1:107:56:131
6777991312,0cyclictest7748-21kworker/1:310:40:241
677599130,12cyclictest0-21swapper/011:31:530
54222130,0sleep00-21swapper/010:07:350
324822130,0sleep032485-21id12:14:560
324822130,0sleep032485-21id12:14:560
312942130,0sleep231292-21lspci12:00:402
226532130,0sleep00-21swapper/009:25:220
12642130,0sleep30-21swapper/311:52:323
6779991210,1cyclictest8096-21sshd11:33:423
677999120,1cyclictest26066-21grep11:26:523
677999120,1cyclictest13828-21sshd10:11:033
677999120,11cyclictest0-21swapper/310:58:323
6778991210,1cyclictest6400-21sshd12:12:382
6778991210,1cyclictest6400-21sshd12:12:372
677899120,1cyclictest13760-21bash11:25:462
677899120,1cyclictest0-21swapper/212:26:272
677799124,1cyclictest25-21ksoftirqd/111:51:171
6777991212,0cyclictest527-40kipmi008:50:221
6777991212,0cyclictest241ktimersoftd/110:22:531
6777991212,0cyclictest10519-21kworker/1:212:02:011
677799121,1cyclictest131rcu_sched12:37:381
6777991211,0cyclictest8799-21kworker/1:207:19:301
677799120,1cyclictest0-21swapper/112:20:591
677799120,11cyclictest7702-21sshd10:13:191
6775991211,0cyclictest0-21swapper/009:48:530
677599120,1cyclictest0-21swapper/012:02:230
677599120,11cyclictest15783-21lspci12:16:130
294402120,0sleep30-21swapper/312:28:493
677999119,1cyclictest0-21swapper/311:20:023
677999119,1cyclictest0-21swapper/309:50:123
6779991110,0cyclictest0-21swapper/310:17:323
677899119,1cyclictest23112-21sshd11:51:372
677899118,2cyclictest649-21polkitd09:54:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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