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2026-06-26 - 16:49
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot2.osadl.org (updated Fri Jun 26, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2556961995958,1cyclictest3126420-21kworker/u16:0+flush-8:012:04:566
255661125519,31sleep70-21swapper/707:08:387
255656024938,8sleep40-21swapper/407:07:554
30632982460,0sleep73063297-21ssh10:56:277
255643024030,7sleep50-21swapper/507:06:045
2556961993937,2cyclictest2978975-21kworker/u16:2+events_unbound11:40:056
2556961993937,2cyclictest2978975-21kworker/u16:2+events_unbound11:40:056
2556961993735,2cyclictest2881020-21kworker/u16:4+events_unbound09:58:126
255641323727,7sleep60-21swapper/607:05:496
2556961993634,2cyclictest3198988-21kworker/u16:5+events_unbound12:02:176
2556961993634,2cyclictest3053010-21kworker/u16:4+events_unbound11:47:266
2556961993634,2cyclictest2881020-21kworker/u16:4+events_unbound09:53:056
2556957993632,3cyclictest2978975-21kworker/u16:2+events_unbound10:39:375
2556961993533,2cyclictest3248406-21kworker/u16:1+events_unbound12:22:586
2556961993533,2cyclictest3248406-21kworker/u16:1+events_unbound12:22:586
2556961993533,2cyclictest3126420-21kworker/u16:0+events_unbound12:31:426
2556961993533,2cyclictest3053010-21kworker/u16:4+events_unbound11:12:416
2556961993533,2cyclictest2951879-21kworker/u16:0+events_unbound10:52:456
2556961993533,2cyclictest2881020-21kworker/u16:4+flush-8:010:06:216
2556961993533,2cyclictest2803695-21kworker/u16:5+events_unbound09:21:256
2556961993533,2cyclictest2706994-21kworker/u16:1+events_unbound08:24:546
2556961993533,2cyclictest2579962-21kworker/u16:2+events_unbound09:13:056
2556961993432,2cyclictest3126420-21kworker/u16:0+events_unbound11:37:016
2556961993432,2cyclictest3052659-21kworker/u16:3+events_unbound11:17:426
2556961993432,2cyclictest3052659-21kworker/u16:3+events_unbound11:07:506
2556961993432,2cyclictest2951879-21kworker/u16:0+events_unbound10:21:586
2556961993432,2cyclictest2951879-21kworker/u16:0+events_unbound10:21:586
2556961993432,2cyclictest2866458-21kworker/u16:2+events_unbound09:47:056
2556961993331,2cyclictest3198988-21kworker/u16:5+events_unbound12:11:056
2556961993331,2cyclictest2991211-21kworker/u16:5+events_unbound10:45:256
2556961993331,2cyclictest2978975-21kworker/u16:2+events_unbound11:29:066
2556961993331,2cyclictest2840558-21kworker/u16:3+events_unbound09:30:306
2556961993331,2cyclictest2667107-21kworker/u16:0+events_unbound09:38:576
2556957993332,1cyclictest3126420-21kworker/u16:0+flush-8:012:29:225
2556961993230,2cyclictest3126420-21kworker/u16:0+events_unbound12:16:166
2556961993230,2cyclictest3053010-21kworker/u16:4+flush-8:011:30:176
2556961993230,2cyclictest3052659-21kworker/u16:3+events_unbound10:59:026
2556961993230,2cyclictest2951879-21kworker/u16:0+events_unbound10:44:216
2556961993230,2cyclictest2840558-21kworker/u16:3+events_unbound10:32:146
2556961993230,2cyclictest2667107-21kworker/u16:0+events_unbound09:28:576
2556961993129,2cyclictest3248406-21kworker/u16:1+events_unbound12:25:096
2556961993129,2cyclictest3186853-21kworker/u16:1+events_unbound11:53:496
2556961993129,2cyclictest3126420-21kworker/u16:0+events_unbound11:57:446
2556961993129,2cyclictest2951879-21kworker/u16:0+events_unbound10:35:256
2556961993128,2cyclictest2667107-21kworker/u16:0+events_unbound08:04:336
2556966993028,1cyclictest2959400-21ssh10:14:427
2556961993028,2cyclictest2840558-21kworker/u16:3+events_unbound10:17:096
2556961993028,2cyclictest2579963-21kworker/u16:5+events_unbound07:30:466
2556961993028,2cyclictest2579962-21kworker/u16:2+events_unbound08:53:216
2556961992927,2cyclictest2881020-21kworker/u16:4+events_unbound10:02:376
2556961992927,2cyclictest2579963-21kworker/u16:5+events_unbound08:21:456
2556966992827,0cyclictest0-21swapper/712:14:487
2556961992826,2cyclictest3248406-21kworker/u16:1+events_unbound12:35:586
2556961992826,2cyclictest2856416-21kworker/u16:1+events_unbound09:40:266
2556961992826,2cyclictest2579963-21kworker/u16:5+events_unbound07:37:336
2556966992726,0cyclictest0-21swapper/710:07:217
2556961992725,2cyclictest2667107-21kworker/u16:0+events_unbound09:16:406
2556961992725,2cyclictest2667107-21kworker/u16:0+events_unbound09:01:256
2556961992725,2cyclictest2667107-21kworker/u16:0+events_unbound09:01:256
2556961992624,2cyclictest3052659-21kworker/u16:3+events_unbound11:20:596
2556961992624,2cyclictest3052658-21kworker/u16:1+flush-8:011:02:396
2556961992624,2cyclictest3052658-21kworker/u16:1+flush-8:011:02:396
2556961992624,2cyclictest2951879-21kworker/u16:0+events_unbound10:27:076
2556961992624,2cyclictest2881020-21kworker/u16:4+events_unbound10:10:566
2556961992624,2cyclictest2756782-21kworker/u16:1+events_unbound08:56:466
2556961992523,2cyclictest2647414-21kworker/u16:3+events_unbound07:52:466
2556961992523,2cyclictest2627986-21kworker/u16:0+events_unbound07:45:146
2556957992522,2cyclictest3053010-21kworker/u16:4+flush-8:011:29:415
30291922240,1chrt0-21swapper/410:44:384
2556966992422,1cyclictest3282367-21ssh12:24:527
255696699240,22cyclictest3052617-21latency_hist10:54:237
2556961992422,2cyclictest2579963-21kworker/u16:5+events_unbound07:42:466
2556961992422,2cyclictest2540322-21kworker/u16:0+events_unbound07:11:476
2556966992322,0cyclictest0-21swapper/709:34:457
2556966992320,2cyclictest3233257-21dnf12:04:567
2556961992321,2cyclictest2726365-21kworker/u16:3+events_unbound08:35:306
2556961992321,2cyclictest2579962-21kworker/u16:2+events_unbound08:32:476
2556961992321,2cyclictest2579962-21kworker/u16:2+events_unbound07:55:476
2556957992319,3cyclictest3052659-21kworker/u16:3+events_unbound11:19:375
2556966992118,2cyclictest3199323-21ssh11:54:267
2556957992119,2cyclictest3053010-21kworker/u16:4+flush-8:012:05:515
2556966992018,1cyclictest2794467-21diskmemload11:11:337
2556966992018,1cyclictest0-21swapper/709:19:427
255696699200,19cyclictest2915225-21ssh09:55:337
255696699200,18cyclictest3039901-21sh10:48:337
2556961992019,1cyclictest2667107-21kworker/u16:0+events_unbound08:04:236
2556966991918,0cyclictest0-21swapper/711:14:397
2556966991917,1cyclictest3016308-21ssh10:39:347
2556966991917,1cyclictest2794467-21diskmemload11:19:547
2556966991917,1cyclictest2784891-21cat09:04:237
2556966991917,1cyclictest2784891-21cat09:04:237
2556961991917,2cyclictest2667107-21kworker/u16:0+events_unbound08:48:376
2556961991917,2cyclictest2579962-21kworker/u16:2+flush-8:007:16:546
2556966991817,0cyclictest0-21swapper/711:29:337
2556966991817,0cyclictest0-21swapper/708:14:517
2556966991815,1cyclictest2794467-21diskmemload10:01:307
255696699180,16cyclictest2902036-21ssh09:49:487
255696699180,16cyclictest0-21swapper/707:16:467
2556961991816,2cyclictest2579963-21kworker/u16:5+events_unbound08:18:226
2556961991816,2cyclictest2579962-21kworker/u16:2+events_unbound07:28:226
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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