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2026-07-09 - 11:28
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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 Thu Jul 09, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254739912238,61cyclictest1-21systemd22:26:190
138992950,2sleep32548399cyclictest23:15:473
2548899810,80cyclictest1304-21sshd22:26:194
25506997922,37cyclictest721-21dbus-daemon22:26:206
312352540,1sleep731234-21sshd23:22:077
101762540,0sleep40-21swapper/422:53:454
17492520,1sleep3401ktimersoftd/300:16:343
272062510,1sleep773-21ksoftirqd/700:10:457
2529525126,9sleep70-21swapper/719:06:307
229572510,0sleep20-21swapper/223:23:232
321952490,0sleep60-21swapper/622:35:136
2501124926,8sleep10-21swapper/119:02:391
2500124925,8sleep00-21swapper/019:02:300
286612480,2sleep32548399cyclictest23:03:533
266262480,0sleep20-21swapper/221:37:342
266262480,0sleep20-21swapper/221:37:342
2507824825,8sleep20-21swapper/219:03:282
232322480,0sleep023224-21sshd23:18:000
17272480,0sleep50-21swapper/500:05:385
84302470,0sleep40-21swapper/421:11:494
25514994741,2cyclictest1291-21cp22:26:197
192232470,1sleep119222-21sshd22:11:051
220442460,1sleep522003-21sshd00:21:165
141132460,0sleep30-21swapper/322:07:153
96522450,0sleep20-21swapper/223:06:332
88812450,0sleep60-21swapper/600:33:116
88812450,0sleep60-21swapper/600:33:116
317252450,2sleep62550699cyclictest23:00:286
229712450,0sleep50-21swapper/500:15:565
217282450,0sleep40-21swapper/423:52:164
32352440,0sleep5758-21runrttasks22:20:545
270382440,0sleep50-21swapper/522:15:025
221632440,0sleep4481ktimersoftd/400:10:264
118792440,0sleep00-21swapper/000:37:050
118792440,0sleep00-21swapper/000:37:050
200312430,2sleep62550699cyclictest23:59:236
81232420,0sleep10-21swapper/122:24:511
157352420,0sleep30-21swapper/321:44:083
90102410,0sleep60-21swapper/623:19:026
307412410,0sleep50-21swapper/521:32:255
279612410,0sleep60-21swapper/622:00:536
2501524027,9sleep30-21swapper/319:02:413
2482624022,4sleep50-21swapper/519:02:275
74202390,0sleep50-21swapper/523:15:255
2502423927,8sleep60-21swapper/619:02:446
187692390,0sleep2311rcuc/222:03:532
115522390,0sleep70-21swapper/723:33:377
2500523826,9sleep40-21swapper/419:02:344
212572360,2sleep22548299cyclictest23:01:442
25482993434,0cyclictest13550irq/24-ahci[00022:26:192
308052240,0sleep30-21swapper/322:33:183
25506992411,1cyclictest65-21ksoftirqd/600:12:046
111232230,1sleep5721-21dbus-daemon23:29:585
111232230,1sleep5721-21dbus-daemon23:29:585
2550699226,1cyclictest65-21ksoftirqd/623:05:566
25506992211,1cyclictest65-21ksoftirqd/621:22:156
25506992210,3cyclictest65-21ksoftirqd/600:28:096
2550699217,2cyclictest65-21ksoftirqd/623:43:346
25506992111,1cyclictest65-21ksoftirqd/623:26:516
2547399217,8cyclictest0-21swapper/019:49:470
2550699209,3cyclictest65-21ksoftirqd/622:54:316
2550699209,1cyclictest65-21ksoftirqd/622:41:106
2550699208,1cyclictest65-21ksoftirqd/622:18:406
2550699206,1cyclictest65-21ksoftirqd/600:21:346
2550699200,1cyclictest131rcu_sched00:12:146
2547399208,12cyclictest0-21swapper/023:02:570
25506991914,3cyclictest65-21ksoftirqd/623:31:546
25506991914,3cyclictest65-21ksoftirqd/623:31:546
2547399195,11cyclictest0-21swapper/020:17:430
246872190,0sleep30-21swapper/323:50:393
120452190,0sleep3391rcuc/300:20:423
2550699187,3cyclictest65-21ksoftirqd/623:56:256
2550699187,3cyclictest65-21ksoftirqd/622:02:156
2550699186,1cyclictest65-21ksoftirqd/621:16:356
2550699185,2cyclictest65-21ksoftirqd/621:37:156
2550699185,2cyclictest65-21ksoftirqd/621:37:156
2550699184,1cyclictest65-21ksoftirqd/621:42:066
25506991814,3cyclictest65-21ksoftirqd/623:14:366
25506991814,3cyclictest464-21systemd-journal22:42:176
25506991813,4cyclictest65-21ksoftirqd/621:56:436
25506991812,5cyclictest65-21ksoftirqd/622:50:506
25495991811,0cyclictest0-21swapper/520:34:215
2547399188,9cyclictest0-21swapper/019:53:110
2547399188,5cyclictest0-21swapper/021:44:230
2547399188,5cyclictest0-21swapper/019:45:530
2547399188,10cyclictest0-21swapper/020:58:410
2547399188,10cyclictest0-21swapper/020:48:350
2547399188,10cyclictest0-21swapper/020:13:270
2547399188,10cyclictest0-21swapper/019:34:510
2547399188,0cyclictest0-21swapper/000:30:590
2547399187,5cyclictest0-21swapper/022:33:590
2547399181,6cyclictest0-21swapper/023:26:210
2550699174,1cyclictest65-21ksoftirqd/600:26:576
2550699174,1cyclictest65-21ksoftirqd/600:26:576
25506991715,1cyclictest65-21ksoftirqd/622:27:296
25506991714,3cyclictest65-21ksoftirqd/621:50:366
25506991714,1cyclictest65-21ksoftirqd/623:41:376
25506991713,1cyclictest65-21ksoftirqd/623:47:376
25506991713,1cyclictest65-21ksoftirqd/622:13:316
2550699170,1cyclictest131rcu_sched21:27:256
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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