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2025-12-03 - 19:22
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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 50 highest latencies:
System rack0slot2.osadl.org (updated Wed Dec 03, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
756347995349,3cyclictest1297922-21fwupd17:29:137
75590525340,10sleep40-21swapper/415:21:154
756339995148,2cyclictest961034-21kworker/u16:4+flush-8:017:22:475
756347995044,5cyclictest589235-21systemd-journal20:07:467
756347994944,4cyclictest951863-21latency_hist16:57:487
756347994744,2cyclictest982293-21cat17:12:477
756335994745,2cyclictest840706-21kworker/u16:2+events_unbound16:11:584
74719124712,30sleep70-21swapper/715:18:057
756347994640,5cyclictest1053104-21latency_hist17:47:477
756339994644,2cyclictest911666-21kworker/u16:3+flush-8:016:38:145
756335994542,2cyclictest1120108-21kworker/u16:0+events_unbound18:19:194
756339994341,2cyclictest1264638-21kworker/u16:3+flush-8:020:28:155
756335994239,2cyclictest1120108-21kworker/u16:0+flush-8:018:38:134
756335994139,2cyclictest1124892-21kworker/u16:2+events_unbound18:37:144
756347994035,4cyclictest851008-21latency_hist16:07:487
756335994038,2cyclictest1406305-21kworker/u16:4+events_unbound20:52:224
756345993937,2cyclictest1264638-21kworker/u16:3+flush-8:020:28:116
756345993836,2cyclictest1012188-21kworker/u16:3+events_unbound17:46:136
756339993836,2cyclictest811089-21kworker/u16:1+events_unbound16:01:585
75592523828,7sleep60-21swapper/615:21:336
756347993735,1cyclictest1325405-21latency_hist20:02:467
756345993735,2cyclictest799675-21kworker/u16:4+events_unbound15:44:096
756345993735,2cyclictest799675-21kworker/u16:4+events_unbound15:44:096
756335993735,2cyclictest961034-21kworker/u16:4+events_unbound17:09:154
756335993735,2cyclictest891138-21kworker/u16:1+events_unbound16:45:114
75593323727,7sleep50-21swapper/515:21:405
756347993635,0cyclictest0-21swapper/718:43:077
756347993632,3cyclictest4184977-17auditd17:57:067
756345993634,2cyclictest953043-21kworker/u16:0+events_unbound16:59:506
756345993634,2cyclictest911666-21kworker/u16:3+events_unbound16:40:126
756339993634,2cyclictest1345777-21kworker/u16:0+events_unbound20:20:215
756339993634,2cyclictest1022411-21kworker/u16:6+events_unbound17:53:585
756335993634,2cyclictest1022411-21kworker/u16:6+events_unbound17:45:114
756339993533,2cyclictest1143667-21kworker/u16:3+events_unbound18:30:125
756335993533,2cyclictest941813-21kworker/u16:5+events_unbound17:19:154
756335993533,2cyclictest1345777-21kworker/u16:0+flush-8:020:41:574
756335993533,2cyclictest1012188-21kworker/u16:3+events_unbound17:57:494
756345993432,2cyclictest860169-21kworker/u16:0+events_unbound16:15:586
756339993432,2cyclictest1355865-21kworker/u16:1+flush-8:020:38:165
756335993432,2cyclictest1002773-21kworker/u16:0+events_unbound17:29:424
756345993331,2cyclictest1244455-21kworker/u16:1+events_unbound19:20:586
756345993331,2cyclictest1164161-21kworker/u16:2+events_unbound19:14:276
756345993331,2cyclictest1083798-21kworker/u16:0+flush-8:018:04:146
756339993331,2cyclictest840706-21kworker/u16:2+events_unbound17:29:295
756339993331,2cyclictest790405-21kworker/u16:3+events_unbound16:06:475
756339993331,2cyclictest1244455-21kworker/u16:1+events_unbound19:34:145
756339993331,2cyclictest1164161-21kworker/u16:2+events_unbound18:59:135
756335993330,2cyclictest953043-21kworker/u16:0+events_unbound17:12:504
756347993230,1cyclictest0-21swapper/715:27:497
756345993230,2cyclictest961034-21kworker/u16:4+flush-8:017:12:036
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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