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2026-05-23 - 16:50
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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 50 highest latencies:
System rack2slot0.osadl.org (updated Sat May 23, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
752121260,0sleep20-21swapper/211:14:312
1516121060,0sleep315160-21sshd10:16:523
32332810,0sleep30-21swapper/309:48:203
67262750,1sleep06725-21grepconf.sh12:09:570
124412670,2sleep20-21swapper/210:36:022
257212640,0sleep20-21swapper/212:14:192
408325947,7sleep30-21swapper/307:05:313
92412580,1sleep175850irq/25-eno1-tx-10:10:491
32052570,0sleep30-21swapper/311:27:583
242252560,1sleep224209-21bash10:53:442
256802530,0sleep30-21swapper/312:22:373
222112530,0sleep20-21swapper/210:14:472
295532520,0sleep30-21swapper/311:44:083
51152510,0sleep10-21swapper/111:58:401
4772510,0sleep1231rcuc/112:31:331
263902510,0sleep3401ktimersoftd/310:45:323
154902510,0sleep20-21swapper/211:04:062
85452500,0sleep30-21swapper/309:59:503
65292500,2sleep1455899cyclictest10:30:041
295632500,0sleep00-21swapper/011:27:270
250682500,0sleep00-21swapper/010:12:120
247592500,0sleep2311rcuc/211:43:432
109582500,0sleep10-21swapper/110:58:081
101932500,1sleep0101ktimersoftd/011:45:130
194512490,0sleep20-21swapper/210:03:292
22662480,0sleep00-21swapper/009:34:310
143062480,0sleep014305-21bash11:31:400
143062480,0sleep014305-21bash11:31:400
135902480,0sleep20-21swapper/212:29:572
111852480,0sleep20-21swapper/209:51:442
88852470,0sleep10-21swapper/110:38:331
168772470,0sleep00-21swapper/007:35:340
135602360,0sleep113561-21grep12:24:241
409523328,3sleep00-21swapper/007:05:400
43502286,7sleep20-21swapper/207:08:552
44202256,6sleep10-21swapper/107:09:461
67962230,0sleep00-21swapper/010:49:290
4563992120,0cyclictest321ktimersoftd/209:34:192
4558991817,0cyclictest30923-21lspci11:44:161
4558991817,0cyclictest16085-21lspci12:13:291
274342180,0sleep10-21swapper/111:32:491
274342180,0sleep10-21swapper/111:32:491
145012180,0sleep314503-21sshd12:38:243
6062170,1sleep0604-21sshd09:53:380
4558991714,2cyclictest12022-21lspci10:05:321
455299170,12cyclictest20053-21sshd12:27:420
141392170,0sleep30-21swapper/311:03:593
4563991615,0cyclictest17404-21lspci11:51:222
455899166,1cyclictest25-21ksoftirqd/109:34:531
4558991614,1cyclictest29052-21kworker/1:110:52:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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