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2026-06-21 - 11:49
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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 Sun Jun 21, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
214599913913,125cyclictest4045-21sshd21:08:224
2148199720,71cyclictest30749-21kworker/7:421:08:217
21423997170,1cyclictest1843-21nfsd21:08:210
21475996946,0cyclictest0-21swapper/621:08:226
75942630,0sleep50-21swapper/521:41:445
97612570,1sleep4481ktimersoftd/421:26:384
21451995731,25cyclictest721-21dbus-daemon21:08:223
212582550,1sleep421236-21sshd22:28:374
133482550,0sleep20-21swapper/200:22:402
133482550,0sleep20-21swapper/200:22:402
257992520,0sleep10-21swapper/123:07:181
123712500,1sleep712352-21bash21:42:037
2143999490,49cyclictest30242-21kworker/2:421:08:222
314182480,1sleep531404-21sshd00:08:185
235852480,1sleep423586-21sshd00:07:524
2098324825,8sleep10-21swapper/119:03:421
91752470,0sleep20-21swapper/222:32:032
17882470,0sleep30-21swapper/321:22:283
130432460,0sleep6721-21dbus-daemon23:08:206
130432460,0sleep6721-21dbus-daemon23:08:206
10842460,0sleep70-21swapper/700:27:347
244782450,0sleep70-21swapper/722:57:397
239902450,0sleep20-21swapper/222:23:062
188582450,0sleep50-21swapper/522:07:395
295172440,0sleep60-21swapper/623:01:476
212052440,1sleep421208-21bash23:22:034
120922440,1sleep312096-21kworker/u16:321:23:003
95482430,0sleep20-21swapper/223:32:502
32392430,0sleep20-21swapper/223:05:592
25012430,0sleep0111rcuc/023:49:220
260502420,0sleep70-21swapper/700:15:407
260502420,0sleep70-21swapper/700:15:407
270952410,0sleep10-21swapper/123:09:111
270952410,0sleep10-21swapper/123:09:111
238692410,0sleep30-21swapper/323:24:023
218592410,0sleep50-21swapper/521:29:115
2126324128,9sleep40-21swapper/419:07:304
2096924129,9sleep50-21swapper/519:03:305
62542400,0sleep70-21swapper/722:48:587
5242400,0sleep50-21swapper/521:18:305
225872400,0sleep60-21swapper/621:48:266
2112224028,8sleep70-21swapper/719:05:327
147012400,0sleep60-21swapper/621:13:186
145312400,0sleep60-21swapper/623:52:096
62322390,0sleep10-21swapper/100:31:361
276282390,0sleep30-21swapper/323:09:133
276282390,0sleep30-21swapper/323:09:133
2107823927,8sleep30-21swapper/319:04:563
2097023927,8sleep60-21swapper/619:03:316
2096623928,8sleep20-21swapper/219:03:272
2096423927,8sleep00-21swapper/019:03:250
251732380,0sleep40-21swapper/422:17:324
242152380,0sleep70-21swapper/700:11:487
188292370,0sleep40-21swapper/421:44:164
130472370,0sleep70-21swapper/722:28:087
145662360,0sleep00-21swapper/021:38:110
21431993413,20cyclictest0-21swapper/121:08:221
21431992813,1cyclictest25-21ksoftirqd/100:07:221
2146799270,27cyclictest0-21swapper/521:08:225
152542240,1sleep015233-21bash21:19:210
2143199227,2cyclictest25-21ksoftirqd/123:53:491
2143199227,1cyclictest25-21ksoftirqd/123:16:311
2143199225,1cyclictest25-21ksoftirqd/100:26:501
21431992211,1cyclictest25-21ksoftirqd/100:34:261
2143199219,1cyclictest25-21ksoftirqd/100:14:241
2143199219,1cyclictest25-21ksoftirqd/100:14:241
2143199209,3cyclictest25-21ksoftirqd/123:30:551
2143199208,1cyclictest25-21ksoftirqd/121:44:051
2143199207,1cyclictest25-21ksoftirqd/123:20:101
2143199206,1cyclictest25-21ksoftirqd/122:49:091
21431992016,1cyclictest25-21ksoftirqd/122:16:361
21431992010,1cyclictest25-21ksoftirqd/123:49:001
2143199198,1cyclictest25-21ksoftirqd/122:30:331
2143199197,1cyclictest25-21ksoftirqd/121:28:561
2143199196,1cyclictest25-21ksoftirqd/122:42:041
2143199195,5cyclictest25-21ksoftirqd/122:58:521
21431991917,1cyclictest25-21ksoftirqd/121:54:061
21431991917,1cyclictest25-21ksoftirqd/100:11:181
21431991915,1cyclictest121rcu_preempt22:34:311
21431991914,4cyclictest25-21ksoftirqd/122:54:141
176192190,0sleep00-21swapper/019:57:450
158032190,1sleep315798-21sshd23:38:443
21467991817,1cyclictest57-21ksoftirqd/500:28:035
21467991812,3cyclictest57-21ksoftirqd/522:19:425
2143199189,2cyclictest25-21ksoftirqd/122:21:531
2143199188,1cyclictest25-21ksoftirqd/122:05:501
2143199187,1cyclictest25-21ksoftirqd/122:45:441
2143199186,3cyclictest25-21ksoftirqd/121:39:141
2143199186,3cyclictest25-21ksoftirqd/121:15:241
2143199186,3cyclictest25-21ksoftirqd/100:19:331
2143199186,3cyclictest25-21ksoftirqd/100:19:331
2143199186,1cyclictest25-21ksoftirqd/123:25:291
2143199186,1cyclictest25-21ksoftirqd/121:58:571
2143199185,1cyclictest25-21ksoftirqd/122:11:531
2143199182,3cyclictest25-21ksoftirqd/121:48:421
21431991816,1cyclictest25-21ksoftirqd/121:18:321
91252170,0sleep40-21swapper/423:45:584
2146799170,16cyclictest9559-21kworker/5:222:51:065
2145999170,1cyclictest0-21swapper/423:53:334
2143199172,2cyclictest25-21ksoftirqd/123:43:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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