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2025-09-18 - 00:10
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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 Wed Sep 17, 2025 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43542940,1sleep24348-21sshd10:57:372
14122910,0sleep10-21swapper/111:07:451
191722570,0sleep10-21swapper/111:37:171
223592550,0sleep30-21swapper/312:25:253
19882550,1sleep21987-21grepconf.sh12:26:442
259302530,0sleep30-21swapper/311:24:173
27582510,0sleep20-21swapper/210:31:132
283532500,0sleep09-21ksoftirqd/009:37:480
280542500,1sleep228029-21sshd10:44:352
235532500,0sleep30-21swapper/310:23:003
228822500,0sleep30-21swapper/310:40:353
60962490,1sleep26092-21lspci11:32:252
140272490,0sleep214030-21id10:01:052
323212480,0sleep20-21swapper/210:48:302
234272470,2sleep32348499cyclictest10:47:273
80092450,2sleep02346999cyclictest12:07:080
264352450,0sleep10-21swapper/111:20:471
93832440,0sleep20-21swapper/209:13:432
17942430,2sleep22348199cyclictest09:56:122
2323224129,7sleep10-21swapper/107:08:231
2322123423,7sleep00-21swapper/007:08:140
2301123110,7sleep20-21swapper/207:05:352
164642230,1sleep016450-21sshd12:31:310
230122227,10sleep30-21swapper/307:05:363
23481992120,0cyclictest0-21swapper/210:28:272
207182190,0sleep00-21swapper/009:51:140
30832170,0sleep10-21swapper/111:04:281
278402170,0sleep00-21swapper/009:11:570
217522170,1sleep021707-21sshd11:10:000
177842160,1sleep30-21swapper/309:33:063
127312160,0sleep10-21swapper/111:57:351
23469991514,0cyclictest0-21swapper/011:04:120
2346999150,1cyclictest648-21systemd-logind10:12:120
148872150,0sleep00-21swapper/012:24:450
124672150,0sleep10-21swapper/109:57:231
110602150,0sleep30-21swapper/311:47:043
244922140,0sleep00-21swapper/012:15:330
23484991411,2cyclictest0-21swapper/309:20:223
203652140,0sleep10-21swapper/109:44:141
309202130,0sleep230904-21sshd12:16:152
2348199130,1cyclictest8354-21lspci12:37:272
2347599130,1cyclictest1094-21nfsd10:14:091
2347599130,12cyclictest0-21swapper/112:39:501
2347599130,12cyclictest0-21swapper/112:21:491
101202130,1sleep010096-21sshd10:46:010
2348499120,11cyclictest0-21swapper/311:29:313
2348499120,11cyclictest0-21swapper/310:05:223
2348499120,0cyclictest0-21swapper/312:20:423
2348199120,11cyclictest7628-21sshd11:50:172
2348199120,11cyclictest0-21swapper/210:36:462
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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