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2025-11-10 - 08:44
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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 50 highest latencies:
System rack2slot0.osadl.org (updated Mon Nov 10, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131012830,0sleep013102-21sshd00:28:280
240642720,0sleep00-21swapper/021:59:330
160392620,1sleep20-21swapper/221:45:092
217332600,0sleep00-21swapper/021:19:000
235332570,0sleep30-21swapper/321:19:123
322352540,0sleep30-21swapper/321:53:393
128112540,0sleep30-21swapper/300:12:133
129702530,1sleep125-21ksoftirqd/119:10:001
89202520,0sleep20-21swapper/200:28:022
28372520,0sleep1231rcuc/100:30:331
243022520,2sleep11301899cyclictest21:25:501
309102510,0sleep00-21swapper/022:53:160
256222510,0sleep20-21swapper/223:02:232
21832510,1sleep22181-21lspci22:53:382
238362490,0sleep3391rcuc/323:34:243
146982490,1sleep114700-21bash21:41:361
33262480,2sleep01301599cyclictest00:20:550
18322480,0sleep10-21swapper/122:14:081
146632470,0sleep00-21swapper/023:14:140
247912460,0sleep10-21swapper/122:06:191
175512450,0sleep10-21swapper/100:09:221
99452420,1sleep19936-21sshd23:26:331
69482420,2sleep11301899cyclictest22:47:401
105462390,0sleep30-21swapper/323:52:143
159962380,0sleep20-21swapper/222:42:082
26392360,1sleep32638-21bash22:31:093
246932350,2sleep11301899cyclictest22:59:051
284962340,0sleep10-21swapper/100:03:461
1262022716,7sleep00-21swapper/019:06:270
1258822715,7sleep30-21swapper/319:06:023
1274122110,7sleep20-21swapper/219:07:492
138742200,1sleep213871-21sshd23:23:462
262392180,0sleep30-21swapper/321:00:123
213432170,0sleep10-21swapper/123:50:081
91672160,2sleep21301999cyclictest00:24:532
317052160,1sleep131693-21sshd23:09:311
233952160,1sleep233-21ksoftirqd/221:12:172
13015991614,1cyclictest27853-21lspci22:03:160
115262160,0sleep20-21swapper/221:21:102
94222150,0sleep00-21swapper/000:08:290
89412150,0sleep00-21swapper/021:47:470
303552150,0sleep30-21swapper/321:23:113
296672150,0sleep129663-21bash23:18:561
291162150,1sleep229118-21bash23:50:492
278812150,0sleep30-21swapper/321:46:183
217682150,0sleep00-21swapper/022:19:390
110802150,0sleep00-21swapper/023:00:530
10202150,0sleep2321ktimersoftd/223:16:012
30202140,0sleep00-21swapper/022:14:150
266902140,0sleep00-21swapper/023:44:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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