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2026-07-07 - 18:55
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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 Thu May 28, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
223812800,1sleep396499cyclictest00:15:323
119552780,0sleep11-21systemd00:20:151
59632570,0sleep00-21swapper/021:24:140
283912560,2sleep396499cyclictest22:07:473
263262550,1sleep0101ktimersoftd/021:42:370
140702540,0sleep00-21swapper/000:25:590
43732530,0sleep30-21swapper/322:25:143
269232530,0sleep10-21swapper/122:21:351
295772520,1sleep0101ktimersoftd/023:20:220
117712520,0sleep211765-21lspci22:20:162
50822510,2sleep396499cyclictest23:18:213
272332510,0sleep10-21swapper/123:17:271
233802510,0sleep00-21swapper/023:08:440
117972500,0sleep011770-21lspci21:55:150
56542490,0sleep00-21swapper/023:32:200
231822490,0sleep10-21swapper/122:10:101
88152470,0sleep30-21swapper/322:20:053
171422470,0sleep30-21swapper/300:29:063
55682460,0sleep00-21swapper/021:12:090
181342460,0sleep20-21swapper/200:09:422
138932460,0sleep20-21swapper/222:48:242
315222440,0sleep30-21swapper/323:20:333
151392420,0sleep30-21swapper/323:27:343
51522380,0sleep20-21swapper/222:03:022
287622360,0sleep20-21swapper/222:35:382
42923210,7sleep30-21swapper/319:05:243
228082290,1sleep11073-21nfsd00:29:361
7752288,7sleep20-21swapper/219:09:072
67822722,3sleep00-21swapper/019:08:090
229332230,1sleep022927-21sshd22:21:140
51922110,7sleep10-21swapper/119:06:261
964991918,0cyclictest8289-21lspci21:28:303
60302180,1sleep26028-21lspci22:42:072
268842180,2sleep396499cyclictest21:42:403
155342170,0sleep10-21swapper/122:56:521
184312160,0sleep30-21swapper/300:34:503
128712160,0sleep20-21swapper/222:34:222
92872150,0sleep0111rcuc/020:45:180
249992150,1sleep324995-21lspci22:15:473
201262150,0sleep3663-21ModemManager23:50:173
113382150,0sleep10-21swapper/123:57:561
964991413,0cyclictest5555-21lspci22:33:433
964991413,0cyclictest19575-21lspci23:58:403
964991413,0cyclictest11153-21lspci21:16:503
85122140,0sleep00-21swapper/022:56:150
311752140,0sleep30-21swapper/323:34:353
286192140,0sleep00-21swapper/022:27:190
260632140,0sleep20-21swapper/223:14:352
213412140,1sleep20-21swapper/221:33:542
180162140,0sleep00-21swapper/019:50:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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