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2026-04-23 - 17:53
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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 Apr 23, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
243852960,0sleep024361-21sshd11:10:470
6662890,2sleep21517799cyclictest09:33:252
124442880,0sleep0642-21systemd-logind10:14:040
211892800,0sleep30-21swapper/311:01:133
235812750,2sleep31518399cyclictest10:42:553
174332730,2sleep01516699cyclictest09:15:480
252322720,0sleep10-21swapper/110:55:221
289342560,0sleep20-21swapper/210:58:562
228562560,1sleep11-21systemd11:26:111
85852550,0sleep10-21swapper/110:50:421
24932550,0sleep10-21swapper/109:29:511
63492540,1sleep2674-21dbus-daemon12:14:062
323032540,0sleep30-21swapper/311:24:053
317192540,0sleep20-21swapper/210:37:302
317192540,0sleep20-21swapper/210:37:292
120702540,0sleep00-21swapper/011:43:440
16032530,0sleep00-21swapper/010:09:590
230492520,0sleep00-21swapper/010:18:080
239892510,0sleep20-21swapper/211:20:112
206942510,0sleep220695-21bash10:24:072
273912500,0sleep20-21swapper/209:13:102
203112500,0sleep020289-21sshd10:24:050
74592490,0sleep00-21swapper/011:52:340
253832490,0sleep20-21swapper/210:43:062
143862490,0sleep00-21swapper/010:57:300
297582480,0sleep029754-21lspci11:57:460
171412480,0sleep317124-21lspci11:10:113
68702470,0sleep06866-21sshd12:17:130
133812470,0sleep30-21swapper/312:35:053
150282460,0sleep00-21swapper/009:49:410
121672460,0sleep10-21swapper/111:19:011
160112450,0sleep20-21swapper/212:29:452
159442420,1sleep215943-21sshd11:47:102
217972400,0sleep20-21swapper/211:19:592
132842308,7sleep10-21swapper/107:05:101
149262287,7sleep00-21swapper/007:08:130
1474622210,7sleep30-21swapper/307:05:553
138642220,0sleep10-21swapper/111:12:581
143412218,7sleep20-21swapper/207:05:182
141462200,0sleep10-21swapper/109:55:391
9522190,0sleep20-21swapper/210:15:582
56122190,2sleep11517299cyclictest11:55:221
134302170,0sleep00-21swapper/011:09:510
92812160,0sleep00-21swapper/010:41:320
211662160,0sleep30-21swapper/309:35:103
159672160,0sleep30-21swapper/310:54:363
139692160,0sleep1231rcuc/110:14:141
115552160,0sleep10-21swapper/112:08:241
304462150,0sleep30-21swapper/312:33:453
180162150,0sleep10-21swapper/112:18:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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