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2026-06-26 - 06:11
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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 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
396244125646,7sleep40-21swapper/419:08:424
396224325520,30sleep70-21swapper/719:05:577
396246025040,7sleep50-21swapper/519:08:595
396239524232,7sleep60-21swapper/619:08:046
3962787993936,2cyclictest251183-21kworker/u16:0+events_unbound00:14:274
3962794993836,2cyclictest43386-21kworker/u16:4+events_unbound21:43:566
3962787993734,2cyclictest251183-21kworker/u16:0+events_unbound00:25:434
396279799360,34cyclictest92294-21latency_hist21:44:267
3962794993634,2cyclictest4112451-21kworker/u16:2+events_unbound22:35:166
3962794993634,2cyclictest358450-21kworker/u16:2+events_unbound23:37:316
3962794993634,2cyclictest251183-21kworker/u16:0+events_unbound22:56:566
3962794993634,2cyclictest104882-21kworker/u16:3+flush-8:022:03:556
3962787993634,2cyclictest4142007-21kworker/u16:0+flush-8:021:27:044
3962787993634,2cyclictest4112451-21kworker/u16:2+events_unbound22:24:124
3962787993633,2cyclictest251183-21kworker/u16:0+flush-8:023:00:274
3962794993533,2cyclictest446554-21kworker/u16:2+events_unbound00:27:156
3962794993533,2cyclictest4142007-21kworker/u16:0+events_unbound21:49:116
3962787993533,2cyclictest4112451-21kworker/u16:2+events_unbound21:58:204
3962787993532,2cyclictest310752-21kworker/u16:2+events_unbound23:20:444
3962794993331,2cyclictest507411-21kworker/u16:1+events_unbound00:37:276
3962794993331,2cyclictest4112451-21kworker/u16:2+events_unbound21:37:166
3962794993331,2cyclictest310752-21kworker/u16:2+events_unbound23:12:166
3962787993331,2cyclictest4142007-21kworker/u16:0+events_unbound21:22:324
3962787993331,2cyclictest382415-21kworker/u16:3+events_unbound00:39:044
3962787993331,2cyclictest251183-21kworker/u16:0+events_unbound00:20:034
3962794993230,2cyclictest4142007-21kworker/u16:0+events_unbound21:15:526
3962794993230,2cyclictest397940-21kworker/u16:5+flush-8:000:09:586
3962794993230,2cyclictest251183-21kworker/u16:0+events_unbound23:28:086
3962794993230,2cyclictest177920-21kworker/u16:0+events_unbound22:34:126
3962787993230,2cyclictest4142007-21kworker/u16:0+events_unbound21:12:364
3962787993230,2cyclictest4142007-21kworker/u16:0+events_unbound21:12:364
3962787993230,2cyclictest4112451-21kworker/u16:2+flush-8:021:35:364
3962787993230,2cyclictest382415-21kworker/u16:3+events_unbound23:46:034
3962787993230,2cyclictest358450-21kworker/u16:2+flush-8:023:56:354
3962787993230,2cyclictest214418-21kworker/u16:4+flush-8:023:15:284
3962787993230,2cyclictest214418-21kworker/u16:4+flush-8:023:15:284
3962794993129,2cyclictest65473-21kworker/u16:1+events_unbound21:34:126
3962794993129,2cyclictest4142007-21kworker/u16:0+events_unbound21:56:236
3962794993129,2cyclictest4112451-21kworker/u16:2+events_unbound22:41:266
3962794993129,2cyclictest382415-21kworker/u16:3+events_unbound23:41:396
3962794993129,2cyclictest382415-21kworker/u16:3+events_unbound00:16:206
3962794993129,2cyclictest251183-21kworker/u16:0+events_unbound00:31:026
3962794993129,2cyclictest214418-21kworker/u16:4+events_unbound23:03:036
3962794993128,2cyclictest3933873-21kworker/u16:2+events_unbound19:39:276
3962787993129,2cyclictest251183-21kworker/u16:0+flush-8:000:30:194
3962787993129,2cyclictest251183-21kworker/u16:0+events_unbound23:06:404
3962787993129,2cyclictest251183-21kworker/u16:0+events_unbound22:52:464
3962787993129,2cyclictest152794-21kworker/u16:1+events_unbound22:46:194
3962787993129,2cyclictest104882-21kworker/u16:3+events_unbound22:34:234
3962787993128,2cyclictest4112451-21kworker/u16:2+events_unbound22:14:354
3962797993024,5cyclictest650-21systemd-journal23:19:257
3962797993024,5cyclictest650-21systemd-journal23:19:257
3962794993028,2cyclictest4142007-21kworker/u16:0+events_unbound22:06:446
3962794993028,2cyclictest152794-21kworker/u16:1+events_unbound23:46:446
3962794993028,2cyclictest152794-21kworker/u16:1+events_unbound23:08:046
3962794993028,2cyclictest104882-21kworker/u16:3+events_unbound22:25:516
3962794993028,2cyclictest104882-21kworker/u16:3+events_unbound22:14:046
3962794993027,2cyclictest4063847-21kworker/u16:1+events_unbound20:19:356
3962787993028,2cyclictest92512-21kworker/u16:1+events_unbound21:50:564
3962787993028,2cyclictest4112451-21kworker/u16:2+events_unbound22:01:164
3962787993028,2cyclictest358450-21kworker/u16:2+events_unbound23:41:234
3962787993028,2cyclictest3249620-21kworker/u16:3+events_unbound19:24:404
3962787993028,2cyclictest251183-21kworker/u16:0+events_unbound23:31:394
3962787993028,2cyclictest177920-21kworker/u16:0+events_unbound22:29:074
3962787993028,2cyclictest104882-21kworker/u16:3+events_unbound22:05:514
3962787993027,2cyclictest382415-21kworker/u16:3+events_unbound00:09:284
3962787993027,2cyclictest251183-21kworker/u16:0+events_unbound23:49:284
3962794992927,2cyclictest3933873-21kworker/u16:2+events_unbound19:36:356
3962794992927,2cyclictest358450-21kworker/u16:2+flush-8:023:58:286
3962794992927,2cyclictest214418-21kworker/u16:4+events_unbound22:51:186
3962794992927,2cyclictest152794-21kworker/u16:1+events_unbound23:15:556
3962794992927,2cyclictest152794-21kworker/u16:1+events_unbound23:15:556
3962794992926,2cyclictest3933873-21kworker/u16:2+events_unbound19:49:356
3962787992927,2cyclictest4142007-21kworker/u16:0+events_unbound21:39:444
3962787992927,2cyclictest4142007-21kworker/u16:0+events_unbound21:17:254
3962787992927,2cyclictest4112451-21kworker/u16:2+events_unbound22:36:564
3962787992927,2cyclictest214418-21kworker/u16:4+events_unbound23:13:234
3962787992926,2cyclictest358450-21kworker/u16:2+events_unbound23:59:284
3962794992826,2cyclictest4112451-21kworker/u16:2+events_unbound21:27:276
3962794992826,2cyclictest3923059-21kworker/u16:1+events_unbound19:15:366
3962794992826,2cyclictest251183-21kworker/u16:0+events_unbound23:50:236
3962794992825,2cyclictest3249620-21kworker/u16:3+events_unbound19:24:286
3962787992827,1cyclictest358450-21kworker/u16:2+events_unbound23:36:244
3962787992826,2cyclictest92512-21kworker/u16:1+flush-8:021:46:514
3962787992826,2cyclictest65473-21kworker/u16:1+events_unbound21:31:594
3962787992826,2cyclictest4112451-21kworker/u16:2+events_unbound22:13:274
3962794992725,2cyclictest3249620-21kworker/u16:3+events_unbound19:21:366
3962794992725,2cyclictest251183-21kworker/u16:0+events_unbound00:23:466
3962787992725,2cyclictest382415-21kworker/u16:3+events_unbound00:07:484
3962787992725,2cyclictest251183-21kworker/u16:0+events_unbound22:57:564
3962794992624,2cyclictest92512-21kworker/u16:1+events_unbound21:53:506
3962794992624,2cyclictest4112451-21kworker/u16:2+events_unbound20:42:406
3962794992624,2cyclictest4112451-21kworker/u16:2+events_unbound20:32:406
3962794992624,2cyclictest4112451-21kworker/u16:2+events_unbound20:32:406
3962794992624,2cyclictest397940-21kworker/u16:5+events_unbound00:04:046
3962794992624,2cyclictest3923059-21kworker/u16:1+events_unbound19:32:406
3962787992624,2cyclictest4015491-21kworker/u16:0+events_unbound20:19:234
3962787992624,2cyclictest152794-21kworker/u16:1+events_unbound23:27:024
3962797992519,5cyclictest4063814-21latency_hist19:59:267
3962794992523,2cyclictest4112451-21kworker/u16:2+events_unbound22:17:106
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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