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2026-08-11 - 19:12
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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 Tue Aug 11, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31782852970,1sleep73178283-21ssh12:03:067
251267026436,7sleep40-21swapper/407:04:134
251287426220,36sleep70-21swapper/707:07:057
251325699510,49cyclictest2565493-21latency_hist07:33:107
2513245994744,2cyclictest3167820-21kworker/u16:4+events_unbound12:13:114
2513256994341,1cyclictest2750156-21diskmemload10:28:447
2513245994240,2cyclictest2799013-21kworker/u16:2+flush-8:010:18:094
2513245994037,2cyclictest2642959-21kworker/u16:1+events_unbound08:18:114
2513256993937,1cyclictest2750156-21diskmemload11:32:367
2513254993836,2cyclictest2730537-21kworker/u16:0+events_unbound09:48:036
2513254993832,6cyclictest2907254-21kworker/u16:3+flush-8:010:51:286
2513245993835,2cyclictest2730537-21kworker/u16:0+events_unbound09:48:114
2513256993732,4cyclictest3166074-21latency_hist11:58:087
2513254993735,2cyclictest3153947-21kworker/u16:2+events_unbound12:10:026
2513254993735,2cyclictest2995318-21kworker/u16:2+events_unbound11:04:356
2513254993735,2cyclictest2919603-21kworker/u16:0+events_unbound10:54:516
2513254993735,2cyclictest2919603-21kworker/u16:0+events_unbound10:26:156
2513245993735,2cyclictest3102002-21kworker/u16:0+events_unbound11:30:474
2513245993735,2cyclictest3029396-21kworker/u16:1+flush-8:012:33:114
2513245993735,2cyclictest2995318-21kworker/u16:2+events_unbound11:27:274
2513245993735,2cyclictest2835080-21kworker/u16:1+events_unbound09:56:434
2513245993735,2cyclictest2691543-21kworker/u16:5+flush-8:009:08:524
2513256993634,1cyclictest2750156-21diskmemload11:15:507
2513254993634,2cyclictest2907254-21kworker/u16:3+events_unbound11:32:076
2513245993634,2cyclictest3102002-21kworker/u16:0+events_unbound11:37:274
2513245993634,2cyclictest3029396-21kworker/u16:1+events_unbound12:18:594
2513256993533,1cyclictest3213812-21ssh12:15:597
2513256993533,1cyclictest2750156-21diskmemload10:50:197
2513254993533,2cyclictest3140079-21kworker/u16:0+events_unbound11:46:586
2513254993533,2cyclictest2995318-21kworker/u16:2+events_unbound11:17:476
2513254993533,2cyclictest2730537-21kworker/u16:0+flush-8:009:26:396
2513254993533,2cyclictest2730537-21kworker/u16:0+events_unbound09:59:236
2513245993533,2cyclictest2995318-21kworker/u16:2+flush-8:011:10:554
2513245993533,2cyclictest2995318-21kworker/u16:2+events_unbound11:00:554
2513245993533,2cyclictest2907254-21kworker/u16:3+flush-8:011:54:474
2513245993533,2cyclictest2799013-21kworker/u16:2+events_unbound09:37:164
2513245993533,2cyclictest2749825-21kworker/u16:1+events_unbound09:24:594
2513245993533,2cyclictest2730537-21kworker/u16:0+events_unbound09:29:484
2513256993432,1cyclictest2750156-21diskmemload10:12:367
2513254993432,2cyclictest3029396-21kworker/u16:1+events_unbound12:06:076
2513254993432,2cyclictest3029396-21kworker/u16:1+events_unbound12:06:076
2513254993432,2cyclictest3029396-21kworker/u16:1+events_unbound11:02:506
2513254993432,2cyclictest2919603-21kworker/u16:0+events_unbound10:40:146
2513245993432,2cyclictest3029396-21kworker/u16:1+events_unbound11:52:284
2513245993432,2cyclictest2995318-21kworker/u16:2+events_unbound11:07:354
2513245993432,2cyclictest2958344-21kworker/u16:4+events_unbound10:38:424
2513245993432,2cyclictest2730537-21kworker/u16:0+flush-8:009:58:434
2513245993432,2cyclictest2522820-21kworker/u16:4+events_unbound07:58:094
251269023424,7sleep60-21swapper/607:04:316
2513256993327,4cyclictest2786752-21latency_hist09:23:097
2513254993331,2cyclictest2907254-21kworker/u16:3+events_unbound10:32:406
2513254993331,2cyclictest2822762-21kworker/u16:3+events_unbound09:40:436
2513254993331,2cyclictest2730537-21kworker/u16:0+events_unbound09:31:036
2513245993331,2cyclictest3153947-21kworker/u16:2+events_unbound12:05:344
2513245993331,2cyclictest3153947-21kworker/u16:2+events_unbound12:05:344
2513245993331,2cyclictest3140079-21kworker/u16:0+events_unbound11:45:124
2513245993331,2cyclictest2995318-21kworker/u16:2+events_unbound11:19:364
251289923323,7sleep50-21swapper/507:07:275
2513256993230,1cyclictest2750156-21diskmemload09:58:097
2513256993225,5cyclictest648-21systemd-journal11:48:097
2513254993230,2cyclictest3140079-21kworker/u16:0+events_unbound11:53:036
2513254993230,2cyclictest3029396-21kworker/u16:1+events_unbound12:14:276
2513254993230,2cyclictest2958344-21kworker/u16:4+events_unbound10:45:246
2513254993230,2cyclictest2907254-21kworker/u16:3+events_unbound11:35:426
2513254993230,2cyclictest2907254-21kworker/u16:3+events_unbound11:25:556
2513254993230,2cyclictest2835080-21kworker/u16:1+events_unbound09:56:236
2513254993230,2cyclictest2799013-21kworker/u16:2+events_unbound09:51:166
2513254993230,2cyclictest2691543-21kworker/u16:5+events_unbound09:14:246
2513254993230,2cyclictest2691543-21kworker/u16:5+events_unbound09:09:076
2513245993230,2cyclictest3167820-21kworker/u16:4+events_unbound12:12:204
2513245993230,2cyclictest2995318-21kworker/u16:2+events_unbound10:50:104
2513245993230,2cyclictest2919603-21kworker/u16:0+flush-8:011:16:234
2513245993230,2cyclictest2919603-21kworker/u16:0+events_unbound10:57:594
2513245993230,2cyclictest2919603-21kworker/u16:0+events_unbound10:47:514
2513245993230,2cyclictest2894549-21kworker/u16:1+events_unbound10:37:474
2513245993230,2cyclictest2894549-21kworker/u16:1+events_unbound10:03:434
2513245993230,2cyclictest2822762-21kworker/u16:3+events_unbound09:42:234
2513245993230,2cyclictest2799013-21kworker/u16:2+flush-8:010:27:554
2513245993230,2cyclictest2749825-21kworker/u16:1+flush-8:009:20:514
2513245993230,2cyclictest2730537-21kworker/u16:0+events_unbound09:46:114
2513245993230,2cyclictest2691543-21kworker/u16:5+flush-8:009:17:364
2513256993130,0cyclictest0-21swapper/711:05:507
2513254993129,2cyclictest3167820-21kworker/u16:4+events_unbound12:27:276
2513254993129,2cyclictest3153947-21kworker/u16:2+flush-8:011:59:236
2513254993129,2cyclictest3029396-21kworker/u16:1+events_unbound11:39:486
2513254993129,2cyclictest2995318-21kworker/u16:2+events_unbound11:11:556
2513254993129,2cyclictest2749825-21kworker/u16:1+events_unbound09:21:446
2513245993129,2cyclictest3029396-21kworker/u16:1+flush-8:011:42:404
2513245993129,2cyclictest3029396-21kworker/u16:1+events_unbound12:24:144
2513245993129,2cyclictest3029396-21kworker/u16:1+events_unbound12:01:104
2513245993129,2cyclictest2919603-21kworker/u16:0+events_unbound10:31:084
2513245993129,2cyclictest2907254-21kworker/u16:3+flush-8:010:11:064
2513245993129,2cyclictest2799013-21kworker/u16:2+events_unbound10:20:594
2513245993129,2cyclictest2691543-21kworker/u16:5+flush-8:009:03:364
2513256993029,0cyclictest0-21swapper/712:28:187
2513254993028,2cyclictest2799013-21kworker/u16:2+events_unbound10:05:286
2513254993028,2cyclictest2720750-21kworker/u16:1+flush-8:008:55:356
2513256992928,0cyclictest0-21swapper/709:43:127
2513256992926,2cyclictest2981764-21ssh10:41:287
2513256992924,4cyclictest3080561-21latency_hist11:23:087
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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