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2026-08-18 - 05:50
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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 rack3slot0.osadl.org (updated Tue Aug 18, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82262890,1sleep2721-21dbus-daemon00:11:592
183152560,1sleep557-21ksoftirqd/522:23:015
183152560,1sleep557-21ksoftirqd/522:23:015
207602530,0sleep60-21swapper/600:25:326
183952530,3sleep4464-21systemd-journal23:56:074
50492520,0sleep60-21swapper/600:02:426
50492520,0sleep60-21swapper/600:02:426
43712520,0sleep60-21swapper/621:20:396
2940624926,8sleep60-21swapper/619:00:436
2940624926,8sleep60-21swapper/619:00:436
3181724825,8sleep00-21swapper/019:04:450
3181724825,8sleep00-21swapper/019:04:450
323132470,0sleep1231rcuc/122:30:581
3166124725,8sleep50-21swapper/519:02:345
3166124725,8sleep50-21swapper/519:02:345
108832460,0sleep70-21swapper/722:31:367
309732450,0sleep30-21swapper/323:05:443
174942440,1sleep117475-21bash23:14:071
132042440,1sleep413200-21systemd00:28:434
56172430,1sleep05612-21sshd00:02:440
56172430,1sleep05612-21sshd00:02:440
38932430,0sleep40-21swapper/400:22:424
128402430,0sleep0100-21kswapd023:15:420
96002420,0sleep10-21swapper/123:39:141
3181524229,9sleep70-21swapper/719:04:447
3181524229,9sleep70-21swapper/719:04:447
3163924230,9sleep30-21swapper/319:02:163
3163924230,9sleep30-21swapper/319:02:163
314882420,0sleep60-21swapper/622:14:456
305652420,0sleep00-21swapper/000:27:510
233672420,1sleep53205399cyclictest23:12:355
60202410,0sleep50-21swapper/522:16:535
60202410,0sleep50-21swapper/522:16:535
38692410,0sleep0111rcuc/023:05:570
322662410,0sleep00-21swapper/000:35:200
30772410,0sleep20-21swapper/223:36:592
229582410,0sleep40-21swapper/421:27:024
213502410,0sleep40-21swapper/423:10:424
202742410,0sleep50-21swapper/500:29:085
142822410,1sleep114283-21grepconf.sh21:39:161
89872400,0sleep28985-21systemd-cgroups21:17:152
31822400,0sleep50-21swapper/521:35:045
3172724028,9sleep40-21swapper/419:03:294
3172724028,9sleep40-21swapper/419:03:294
297002400,0sleep40-21swapper/421:45:364
292242400,0sleep30-21swapper/322:20:033
292242400,0sleep30-21swapper/322:20:033
247922400,0sleep60-21swapper/622:58:026
227742400,0sleep50-21swapper/521:43:215
70122390,0sleep60-21swapper/621:51:316
60272390,0sleep00-21swapper/022:07:500
3168423927,8sleep10-21swapper/119:02:541
3168423927,8sleep10-21swapper/119:02:541
227522390,0sleep70-21swapper/700:34:477
152612390,0sleep70-21swapper/723:15:497
54762380,0sleep40-21swapper/422:13:154
3158323827,8sleep20-21swapper/219:01:352
3158323827,8sleep20-21swapper/219:01:352
32053992816,2cyclictest57-21ksoftirqd/522:45:405
32053992814,2cyclictest57-21ksoftirqd/500:08:115
32053992813,2cyclictest57-21ksoftirqd/521:29:105
3205399276,2cyclictest57-21ksoftirqd/500:03:015
3205399276,2cyclictest57-21ksoftirqd/500:03:015
32053992716,2cyclictest57-21ksoftirqd/500:33:395
32053992714,4cyclictest57-21ksoftirqd/523:32:215
249602270,21sleep213550irq/24-ahci[00022:07:042
3205399269,2cyclictest57-21ksoftirqd/521:54:045
32053992611,1cyclictest57-21ksoftirqd/523:55:495
3202099269,1cyclictest25-21ksoftirqd/122:45:541
32053992515,2cyclictest57-21ksoftirqd/521:13:215
32053992513,3cyclictest57-21ksoftirqd/523:07:425
32053992513,3cyclictest57-21ksoftirqd/500:25:195
32053992512,3cyclictest57-21ksoftirqd/522:41:305
3205399245,3cyclictest57-21ksoftirqd/523:52:535
32053992413,3cyclictest57-21ksoftirqd/522:28:145
32053992412,3cyclictest57-21ksoftirqd/522:30:545
32053992411,3cyclictest57-21ksoftirqd/521:22:495
3202099247,3cyclictest25-21ksoftirqd/123:08:291
3205399237,2cyclictest57-21ksoftirqd/521:49:035
3205399236,3cyclictest57-21ksoftirqd/523:19:455
3205399236,2cyclictest57-21ksoftirqd/523:37:475
3205399236,2cyclictest57-21ksoftirqd/521:17:185
32053992311,3cyclictest57-21ksoftirqd/522:04:415
32053992311,2cyclictest57-21ksoftirqd/523:24:515
32053992311,1cyclictest57-21ksoftirqd/521:09:065
3202099239,3cyclictest25-21ksoftirqd/123:41:521
3205399229,2cyclictest57-21ksoftirqd/522:05:475
3205399227,3cyclictest57-21ksoftirqd/522:57:145
3205399227,3cyclictest57-21ksoftirqd/522:50:515
3205399226,3cyclictest57-21ksoftirqd/500:11:165
3205399225,3cyclictest57-21ksoftirqd/521:39:255
32053992213,2cyclictest57-21ksoftirqd/500:16:085
32053992212,3cyclictest57-21ksoftirqd/523:29:255
32053992211,2cyclictest57-21ksoftirqd/522:36:085
32053992210,1cyclictest57-21ksoftirqd/523:45:385
32034992218,1cyclictest41-21ksoftirqd/321:38:203
3202099229,3cyclictest25-21ksoftirqd/122:10:491
32020992213,5cyclictest25-21ksoftirqd/121:05:381
3202099220,3cyclictest25-21ksoftirqd/100:24:221
3205399219,3cyclictest57-21ksoftirqd/521:58:555
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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