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2026-03-23 - 08:31
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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 rack3slot0.osadl.org (updated Mon Mar 23, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10825991145,36cyclictest11511-21systemd-cgroups21:44:063
15812760,0sleep40-21swapper/421:21:144
10847997341,21cyclictest11474-21sshd21:44:066
235162580,0sleep40-21swapper/421:15:064
11452570,0sleep20-21swapper/223:12:532
303212540,0sleep20-21swapper/223:21:582
37052530,0sleep70-21swapper/723:09:227
299502520,1sleep529947-21sshd21:48:555
250272520,0sleep60-21swapper/623:27:236
225762520,0sleep40-21swapper/422:27:304
81802510,2sleep01079899cyclictest21:16:060
68472510,0sleep66839-21sshd00:16:576
321912500,0sleep332170-21sshd00:16:383
121872500,0sleep20-21swapper/222:10:142
249942480,0sleep21-21systemd00:21:492
249942480,0sleep21-21systemd00:21:492
10798994815,0cyclictest0-21swapper/021:44:050
1040924824,8sleep30-21swapper/319:03:093
818524724,8sleep20-21swapper/219:01:402
312482470,1sleep131236-21bash00:16:361
250172470,0sleep00-21swapper/022:23:580
198622470,1sleep119866-21cpuspeed_turbos19:21:481
171142470,0sleep00-21swapper/023:11:550
287862460,0sleep0797-21sshd21:26:310
276302460,0sleep3401ktimersoftd/323:38:493
51582450,0sleep45155-21sshd22:24:424
16972450,1sleep51696-21sshd22:09:375
156932450,0sleep115696-21bash21:53:391
68302440,0sleep26829-21systemd-cgroups21:41:552
271282440,0sleep20-21swapper/222:38:572
238102440,0sleep4471rcuc/422:51:494
207192440,0sleep50-21swapper/522:34:525
45372430,2sleep41083399cyclictest22:50:454
204722430,1sleep720468-21sshd22:16:207
128652430,0sleep50-21swapper/522:28:515
196902420,1sleep019686-21grepconf.sh23:23:160
218902410,0sleep50-21swapper/522:42:215
148452410,0sleep70-21swapper/723:17:237
148092410,0sleep70-21swapper/700:21:147
116282410,0sleep70-21swapper/723:36:057
109802410,0sleep60-21swapper/600:04:076
325112400,0sleep20-21swapper/223:09:092
260242400,0sleep40-21swapper/400:25:364
260242400,0sleep40-21swapper/400:25:364
246152400,1sleep424616-21grepconf.sh22:46:204
1058624028,8sleep60-21swapper/619:05:376
1047724029,8sleep40-21swapper/419:04:064
1041524027,9sleep00-21swapper/019:03:140
1032924027,9sleep70-21swapper/719:02:097
266822390,0sleep10-21swapper/123:23:411
250872390,0sleep3391rcuc/323:23:353
1038423927,9sleep50-21swapper/519:02:475
299682380,1sleep41-21systemd21:26:354
818423725,8sleep10-21swapper/119:01:391
171382370,1sleep557-21ksoftirqd/521:23:565
10855993636,0cyclictest22680-21kworker/7:321:44:067
185722330,0sleep60-21swapper/622:27:166
1080699300,29cyclictest22815-21kworker/u16:021:44:051
10833992710,0cyclictest0-21swapper/421:44:054
10847992218,1cyclictest65-21ksoftirqd/622:19:146
10825992216,4cyclictest41-21ksoftirqd/322:57:063
10825992118,3cyclictest41-21ksoftirqd/321:25:143
10825992114,4cyclictest41-21ksoftirqd/300:30:423
10825992018,1cyclictest41-21ksoftirqd/321:06:553
10825992018,1cyclictest41-21ksoftirqd/321:06:553
10825992016,3cyclictest41-21ksoftirqd/322:22:053
1085599192,4cyclictest0-21swapper/723:15:397
1082599193,2cyclictest41-21ksoftirqd/323:35:293
10825991917,1cyclictest41-21ksoftirqd/322:26:453
10825991917,1cyclictest41-21ksoftirqd/321:57:013
10825991915,3cyclictest41-21ksoftirqd/323:26:503
10825991914,3cyclictest41-21ksoftirqd/300:00:063
10825991913,4cyclictest41-21ksoftirqd/323:11:593
1082599190,18cyclictest2819-21kworker/3:123:41:543
299942180,0sleep20-21swapper/223:50:172
10825991817,1cyclictest41-21ksoftirqd/321:14:213
10825991816,1cyclictest41-21ksoftirqd/321:16:493
10825991816,1cyclictest41-21ksoftirqd/300:10:033
10825991815,1cyclictest41-21ksoftirqd/300:23:583
10825991815,1cyclictest41-21ksoftirqd/300:23:583
10825991814,4cyclictest41-21ksoftirqd/300:32:193
10825991814,1cyclictest41-21ksoftirqd/322:43:173
1082599181,1cyclictest41-21ksoftirqd/323:08:093
10841991716,1cyclictest0-21swapper/521:44:065
10825991716,1cyclictest41-21ksoftirqd/322:41:103
10825991715,1cyclictest41-21ksoftirqd/322:53:023
10825991715,1cyclictest41-21ksoftirqd/322:19:173
10825991715,1cyclictest41-21ksoftirqd/321:48:573
10825991715,1cyclictest41-21ksoftirqd/321:36:543
10825991715,1cyclictest41-21ksoftirqd/321:34:073
10825991715,1cyclictest41-21ksoftirqd/321:29:423
10825991715,1cyclictest41-21ksoftirqd/300:15:553
10825991715,1cyclictest41-21ksoftirqd/300:04:273
10825991714,1cyclictest41-21ksoftirqd/322:11:423
10825991714,1cyclictest1-21systemd22:46:403
10825991713,3cyclictest41-21ksoftirqd/323:05:143
1082599171,3cyclictest41-21ksoftirqd/323:54:183
1082599170,16cyclictest32274-21kworker/3:622:07:343
10798991715,1cyclictest1548-21kworker/u16:223:47:470
10798991714,2cyclictest2530-21kworker/u16:122:40:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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