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2026-07-10 - 13:54
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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 Fri Jul 10, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28761991475,83cyclictest21933-21systemd09:30:024
287619914536,83cyclictest11758-21sshd12:08:284
262692990,10sleep30-21swapper/307:02:133
121502970,0sleep10-21swapper/111:57:471
28753998785,2cyclictest1844-21nfsd09:30:013
169972850,2sleep52876899cyclictest10:00:095
28774997919,23cyclictest21931-21sshd09:30:026
194682750,0sleep50-21swapper/512:21:295
28774997134,0cyclictest0-21swapper/612:08:286
187802700,2sleep02872699cyclictest12:30:210
6752550,0sleep10-21swapper/110:45:461
2875399550,55cyclictest2964-21kworker/3:312:08:283
164382550,0sleep233-21ksoftirqd/209:54:452
162342550,0sleep30-21swapper/311:49:083
28782995149,1cyclictest1-21systemd12:08:287
219262510,1sleep121918-21bash11:26:071
314422500,0sleep60-21swapper/610:43:516
30052500,0sleep40-21swapper/409:09:144
225812500,0sleep622530-21sshd10:16:366
202472500,2sleep02872699cyclictest10:43:130
135232500,0sleep70-21swapper/710:26:547
135232500,0sleep70-21swapper/710:26:547
106362500,0sleep00-21swapper/011:48:490
319572490,0sleep531951-21sshd09:11:075
2850424925,9sleep00-21swapper/007:05:560
105732480,0sleep70-21swapper/712:20:597
323972470,1sleep432368-21systemd10:11:454
28743994747,0cyclictest13550irq/24-ahci[00012:08:282
163242470,1sleep41-21systemd09:58:164
15682470,0sleep60-21swapper/611:23:086
68402460,1sleep56834-21sshd11:25:155
50242460,0sleep50-21swapper/509:16:445
24662460,0sleep50-21swapper/511:16:105
235452460,0sleep30-21swapper/310:43:243
19942460,1sleep01959-21sshd12:15:080
292052450,0sleep20-21swapper/209:39:152
71822440,0sleep20-21swapper/209:22:092
71822440,0sleep20-21swapper/209:22:092
2831724431,9sleep40-21swapper/407:03:274
249792440,0sleep20-21swapper/209:21:212
208562440,0sleep60-21swapper/611:10:026
314292430,0sleep70-21swapper/710:42:087
242742430,0sleep30-21swapper/310:52:213
127312430,0sleep212714-21sshd10:33:542
285592420,0sleep60-21swapper/609:12:366
124042420,0sleep30-21swapper/312:22:483
86862410,0sleep10-21swapper/112:13:411
295822410,0sleep20-21swapper/210:13:192
257192410,0sleep40-21swapper/410:47:094
181512410,0sleep70-21swapper/711:38:227
130382410,0sleep00-21swapper/009:22:230
130382410,0sleep00-21swapper/009:22:230
103862410,0sleep30-21swapper/311:14:483
90622400,0sleep30-21swapper/310:24:503
90622400,0sleep30-21swapper/310:24:503
2846024028,8sleep50-21swapper/507:05:215
2833224028,8sleep60-21swapper/607:03:376
217882400,1sleep621786-21grep10:36:146
193252400,0sleep50-21swapper/509:31:425
127982400,0sleep70-21swapper/712:13:557
2832723928,8sleep10-21swapper/107:03:321
2829323927,8sleep70-21swapper/707:03:067
266882390,0sleep10-21swapper/111:46:091
233082390,0sleep50-21swapper/511:45:575
224322390,0sleep40-21swapper/410:20:104
13512390,0sleep00-21swapper/009:36:010
102202390,0sleep50-21swapper/512:06:405
327562380,0sleep20-21swapper/212:29:192
28743993837,0cyclictest13550irq/24-ahci[00009:30:012
2846623825,9sleep20-21swapper/207:05:262
28726993636,0cyclictest16661-21kworker/0:009:30:010
163892360,2sleep12873499cyclictest09:33:141
28726993535,0cyclictest4027-21kworker/0:312:08:280
2878299320,32cyclictest0-21swapper/709:30:017
261912310,0sleep50-21swapper/509:44:315
28734992825,1cyclictest25-21ksoftirqd/109:30:021
2873499250,24cyclictest11541-21grepconf.sh12:08:271
2873499234,1cyclictest25-21ksoftirqd/111:29:311
28768992119,1cyclictest85250irq/26-em1-tx-012:08:275
28768992118,3cyclictest57-21ksoftirqd/510:54:095
2873499212,4cyclictest25-21ksoftirqd/110:39:551
138792210,0sleep4663-21in:imjournal11:43:324
2876899205,2cyclictest57-21ksoftirqd/510:29:015
2876899204,1cyclictest57-21ksoftirqd/509:23:405
2876899204,1cyclictest57-21ksoftirqd/509:23:405
2874399209,1cyclictest1843-21nfsd11:50:532
2874399208,3cyclictest33-21ksoftirqd/210:43:212
9292190,0sleep7927-21sshd11:05:227
28768991917,1cyclictest57-21ksoftirqd/511:48:145
28768991914,2cyclictest57-21ksoftirqd/512:35:035
28768991914,2cyclictest57-21ksoftirqd/512:15:225
2874399195,1cyclictest33-21ksoftirqd/210:24:012
2874399195,1cyclictest33-21ksoftirqd/210:24:012
2874399190,5cyclictest0-21swapper/210:03:432
2873499197,1cyclictest25-21ksoftirqd/109:46:151
2873499196,1cyclictest25-21ksoftirqd/111:19:431
2873499193,1cyclictest25-21ksoftirqd/110:13:131
28734991915,1cyclictest25-21ksoftirqd/110:32:271
28734991914,2cyclictest25-21ksoftirqd/112:32:071
28734991913,3cyclictest25-21ksoftirqd/111:11:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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