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2026-03-19 - 22:50
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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 rack5slot0.osadl.org (updated Thu Mar 19, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193721420,4sleep20-21swapper/209:19:542
1136521290,4sleep31800199cyclictest10:20:423
2099221230,2sleep31800199cyclictest10:44:383
349721150,2sleep12024-21nfsd11:44:031
17594210324,39sleep30-21swapper/307:08:143
82622950,3sleep041ktimersoftd/012:35:200
264032940,1sleep126399-21cp10:18:431
96742910,4sleep11799999cyclictest09:38:361
235972910,1sleep10-21swapper/111:31:251
220022900,4sleep10-21swapper/109:50:221
164412890,1sleep20-21swapper/208:15:192
311742860,3sleep20-21swapper/211:28:382
211922860,0sleep00-21swapper/011:34:440
4662840,2sleep1464-21bash12:13:201
193632840,1sleep30-21swapper/312:11:513
139682840,3sleep213958-21sshd12:14:502
1765628332,47sleep10-21swapper/107:09:001
84932810,3sleep20-21swapper/210:16:322
29622800,2sleep10-21swapper/110:02:121
270132800,2sleep12512-21runrttasks10:57:061
172172800,2sleep30-21swapper/312:00:413
53672790,4sleep20-21swapper/210:38:492
270142790,2sleep327010-21iostat12:30:143
75022780,3sleep21800099cyclictest10:27:142
204472770,2sleep10-21swapper/109:22:011
17202770,0sleep00-21swapper/011:01:180
213862750,3sleep236-21rcuop/209:32:442
1766727334,9sleep20-21swapper/207:09:092
24232710,2sleep30-21swapper/311:13:073
137052710,2sleep30-21swapper/311:53:183
110102680,2sleep111009-21bash11:06:081
32602660,1sleep20-21swapper/211:01:292
1772625633,11sleep00-21swapper/007:09:510
54052370,0sleep15406-21bash09:48:301
142922330,2sleep314291-21bash09:39:063
262552280,26sleep3144650irq/27-eth010:15:063
182942280,1sleep20-21swapper/207:10:132
168122280,2sleep10-21swapper/111:02:591
85282260,2sleep20-21swapper/210:31:112
1799999262,13cyclictest144650irq/27-eth011:28:461
1799999261,12cyclictest144650irq/27-eth009:41:521
1799999260,12cyclictest0-21swapper/112:17:111
1799999260,12cyclictest0-21swapper/109:11:341
275782250,2sleep00-21swapper/011:24:140
1799999250,3cyclictest0-21swapper/110:51:501
153762250,4sleep20-21swapper/211:30:292
35952240,3sleep30-21swapper/311:29:143
1799999242,8cyclictest144650irq/27-eth011:24:221
1799999241,12cyclictest10484-21latency_hist08:05:011
1799999240,3cyclictest0-21swapper/110:24:481
1799999240,2cyclictest0-21swapper/110:47:071
1799999240,14cyclictest2078-21nscd11:17:221
316562230,1sleep231659-21grep08:50:132
1799999233,10cyclictest144650irq/27-eth011:54:331
1799999232,9cyclictest144650irq/27-eth011:45:301
1799999232,7cyclictest144650irq/27-eth008:29:051
1799999232,19cyclictest9551-21id11:10:031
1799999231,10cyclictest10694-21nscd10:06:341
1799999230,4cyclictest0-21swapper/109:15:231
1799999230,3cyclictest0-21swapper/112:37:361
1799999230,3cyclictest0-21swapper/110:30:221
1799999230,3cyclictest0-21swapper/110:13:471
1799999230,3cyclictest0-21swapper/109:58:341
1799999230,21cyclictest0-21swapper/110:25:121
1799999230,15cyclictest0-21swapper/109:35:001
93752220,3sleep10-21swapper/110:35:141
1799999225,8cyclictest21211-21nscd10:40:021
1799999223,9cyclictest144650irq/27-eth012:32:141
1799999223,10cyclictest144650irq/27-eth012:26:131
1799999222,1cyclictest0-21swapper/111:55:211
1799999220,3cyclictest0-21swapper/111:35:171
1799999220,20cyclictest0-21swapper/112:00:571
1799999220,11cyclictest0-21swapper/107:40:101
1799999220,10cyclictest0-21swapper/109:25:121
1799999213,9cyclictest144650irq/27-eth012:05:211
1799999212,9cyclictest144650irq/27-eth012:22:541
1799999210,3cyclictest0-21swapper/107:55:121
1799999210,2cyclictest0-21swapper/108:40:141
1799999210,10cyclictest0-21swapper/108:48:501
1799999210,10cyclictest0-21swapper/107:15:231
1799999210,10cyclictest0-21swapper/107:10:131
146842210,19sleep3144650irq/27-eth012:28:593
307532200,18sleep2144650irq/27-eth010:49:552
1799999202,7cyclictest144650irq/27-eth007:29:591
1799999200,3cyclictest0-21swapper/109:07:481
1799999200,3cyclictest0-21swapper/107:50:111
1799999200,2cyclictest0-21swapper/109:00:141
1799999200,2cyclictest0-21swapper/108:37:391
1799999200,2cyclictest0-21swapper/108:21:171
1799999200,2cyclictest0-21swapper/108:13:271
1799999200,10cyclictest0-21swapper/107:23:491
106882200,2sleep310684-21sshd10:10:003
306262190,17sleep2144650irq/27-eth012:30:342
229752190,17sleep3144650irq/27-eth010:33:023
18000991915,3cyclictest7245-21sshd09:59:162
1799999190,2cyclictest0-21swapper/108:59:321
1799999190,2cyclictest0-21swapper/108:50:181
1799999190,2cyclictest0-21swapper/108:32:351
1799999190,2cyclictest0-21swapper/108:05:121
1799999190,2cyclictest0-21swapper/107:48:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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