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2026-09-05 - 19:10
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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 Sat Sep 05, 2026 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2179599121119,1cyclictest1844-21nfsd12:22:404
217729911954,25cyclictest9-21ksoftirqd/012:22:410
32032950,2sleep62180499cyclictest09:15:496
61092790,2sleep12177599cyclictest12:33:511
61092790,2sleep12177599cyclictest12:33:511
2180299740,71cyclictest8987-21kworker/5:212:22:415
21804997129,0cyclictest0-21swapper/612:22:416
133162540,0sleep10-21swapper/111:56:581
257312520,0sleep10-21swapper/109:32:501
18932510,0sleep10-21swapper/111:03:241
144772510,1sleep773-21ksoftirqd/712:06:507
260382500,1sleep125-21ksoftirqd/111:28:231
121152500,0sleep20-21swapper/209:06:082
49022490,0sleep4481ktimersoftd/409:15:554
304442490,0sleep30-21swapper/309:40:533
242372490,0sleep224212-21sshd10:21:372
166602490,0sleep60-21swapper/610:54:326
2133124724,8sleep30-21swapper/307:00:543
78552460,0sleep50-21swapper/510:16:435
293972460,0sleep00-21swapper/011:10:520
293972460,0sleep00-21swapper/011:10:520
19892460,0sleep70-21swapper/711:26:537
34332450,1sleep33427-21sshd12:17:593
291582450,2sleep52180299cyclictest10:27:485
291582450,2sleep52180299cyclictest10:27:485
315122440,0sleep60-21swapper/610:57:216
29792440,0sleep4481ktimersoftd/410:02:404
276982430,1sleep427697-21sshd10:39:334
2143424330,9sleep70-21swapper/707:02:197
211202430,0sleep00-21swapper/011:02:350
195672430,0sleep40-21swapper/411:33:554
106812430,0sleep00-21swapper/010:20:460
54872420,1sleep75486-21bash09:35:287
54872420,1sleep75486-21bash09:35:287
2158924230,9sleep10-21swapper/107:04:291
2136524230,8sleep60-21swapper/607:01:216
169622420,0sleep10-21swapper/109:42:031
164572420,0sleep70-21swapper/710:29:027
164572420,0sleep70-21swapper/710:29:027
277852410,0sleep70-21swapper/712:27:167
2147624029,8sleep40-21swapper/407:02:564
2144124029,8sleep50-21swapper/507:02:255
2142024028,8sleep20-21swapper/207:02:052
1915924028,8sleep00-21swapper/007:00:030
21777993838,0cyclictest13550irq/24-ahci[00012:22:412
39592370,0sleep20-21swapper/209:53:012
2177599379,27cyclictest0-21swapper/112:22:411
203712370,1sleep420364-21bash10:21:234
138432360,0sleep40-21swapper/410:26:514
138432360,0sleep40-21swapper/410:26:514
126292360,3sleep7721ktimersoftd/710:09:167
2181199300,30cyclictest0-21swapper/712:22:417
2178999240,23cyclictest14455-21kworker/3:612:22:413
2180499227,1cyclictest65-21ksoftirqd/611:35:396
320782200,0sleep70-21swapper/710:22:067
2180499207,1cyclictest65-21ksoftirqd/609:20:116
2180499205,2cyclictest65-21ksoftirqd/610:23:406
2180499205,1cyclictest65-21ksoftirqd/611:13:596
2180499205,1cyclictest65-21ksoftirqd/611:13:596
2180499203,3cyclictest65-21ksoftirqd/609:33:236
21804992012,5cyclictest65-21ksoftirqd/612:32:256
21804992012,5cyclictest65-21ksoftirqd/612:32:256
2180299209,0cyclictest11190-21sshd11:29:295
310402190,0sleep20-21swapper/211:56:032
21804991918,1cyclictest65-21ksoftirqd/611:07:366
21804991912,4cyclictest65-21ksoftirqd/612:25:326
246232180,0sleep00-21swapper/009:15:110
21804991815,2cyclictest65-21ksoftirqd/609:36:436
21804991815,2cyclictest65-21ksoftirqd/609:36:436
21804991815,1cyclictest65-21ksoftirqd/609:28:546
21804991814,1cyclictest65-21ksoftirqd/611:24:276
21804991813,1cyclictest65-21ksoftirqd/611:50:286
21804991812,3cyclictest65-21ksoftirqd/609:48:076
2180499181,1cyclictest121rcu_preempt11:04:256
2180499180,1cyclictest131rcu_sched10:00:256
21802991813,4cyclictest28624-21sshd10:37:355
21802991813,1cyclictest25141-21grep11:04:515
65742170,0sleep1709-21systemd-logind10:26:241
65742170,0sleep1709-21systemd-logind10:26:241
246132170,0sleep30-21swapper/312:27:043
2180499177,1cyclictest65-21ksoftirqd/610:15:146
2180499176,1cyclictest65-21ksoftirqd/610:35:416
2180499175,1cyclictest65-21ksoftirqd/610:45:156
2180499174,3cyclictest65-21ksoftirqd/612:00:176
2180499174,1cyclictest65-21ksoftirqd/609:54:066
21804991715,1cyclictest65-21ksoftirqd/609:09:496
21804991713,3cyclictest65-21ksoftirqd/611:16:036
21804991713,3cyclictest65-21ksoftirqd/610:31:396
21804991713,1cyclictest65-21ksoftirqd/612:10:166
21804991713,1cyclictest65-21ksoftirqd/611:33:226
2180299173,0cyclictest0-21swapper/508:03:395
21772991715,1cyclictest9-21ksoftirqd/009:38:430
21772991715,1cyclictest9-21ksoftirqd/009:38:430
2180499169,4cyclictest65-21ksoftirqd/611:40:306
2180499165,1cyclictest65-21ksoftirqd/612:09:316
21804991615,1cyclictest65-21ksoftirqd/609:40:156
21804991614,1cyclictest703-21nscd10:05:266
21804991614,1cyclictest65-21ksoftirqd/611:47:266
21804991614,1cyclictest65-21ksoftirqd/611:47:266
21804991614,1cyclictest65-21ksoftirqd/611:29:336
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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