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2025-12-07 - 00:52
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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 rack0slot4.osadl.org (updated Sat Dec 06, 2025 00:46:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20589942372365,5sleep40-21swapper/419:08:0810
20589702367320,15sleep150-21swapper/1519:07:477
20588262360315,14sleep110-21swapper/1119:05:513
20585692359350,6sleep70-21swapper/719:05:3113
20589022356312,13sleep100-21swapper/1019:06:552
20587862356313,35sleep80-21swapper/819:05:3114
20589772354311,14sleep50-21swapper/519:07:5311
20590712352312,14sleep30-21swapper/319:09:129
20591302345303,15sleep00-21swapper/019:09:570
20588582342319,15sleep90-21swapper/919:06:2015
20588462342319,15sleep140-21swapper/1419:06:096
20590032341319,15sleep130-21swapper/1319:08:175
20589962341318,15sleep60-21swapper/619:08:1012
20588002340318,15sleep120-21swapper/1219:05:354
20591312339317,14sleep10-21swapper/119:09:581
20555642337314,15sleep20-21swapper/219:05:108
20595059910197,3cyclictest0-21swapper/000:10:170
2059552999897,1cyclictest0-21swapper/1423:55:196
2059552999897,1cyclictest0-21swapper/1423:55:196
2059530999594,1cyclictest2195886-21nodev-device-ev21:45:1713
2059510999493,1cyclictest2131522-21nodev-device-ev20:30:201
2059540999291,1cyclictest2152904-21nodev-device-ev20:55:182
2059535999190,1cyclictest0-21swapper/920:20:1815
2059505999190,1cyclictest0-21swapper/023:10:170
2059522997978,1cyclictest2294216-21nodev-device-ev23:40:1711
2059532997776,1cyclictest2101592-21nodev-device-ev19:55:1614
2059525997069,1cyclictest2307025-21nodev-device-ev23:55:1912
2059525997069,1cyclictest2307025-21nodev-device-ev23:55:1912
2059552996966,3cyclictest2213005-21nodev-device-ev22:05:196
2059545996866,1cyclictest0-21swapper/1219:50:184
2059512996766,1cyclictest0-21swapper/220:55:198
2059522996665,1cyclictest2315602-21nodev-device-ev00:05:1811
2059522994948,1cyclictest2272837-21nodev-device-ev23:15:1811
2059520994947,1cyclictest2118713-21nodev-device-ev20:15:1810
2059555994746,1cyclictest0-21swapper/1521:10:177
2059530994642,0cyclictest0-21swapper/700:38:1613
205954299426,25cyclictest0-21swapper/1119:30:113
2059540994241,1cyclictest2251458-21nodev-device-ev22:50:182
2059530994238,4cyclictest0-21swapper/721:25:0313
205953099420,38cyclictest0-21swapper/723:15:2013
2059530994140,1cyclictest2165743-21nodev-device-ev21:10:1713
2059530994137,4cyclictest0-21swapper/723:09:2813
2059530994137,0cyclictest0-21swapper/723:42:3213
2059530994136,5cyclictest2218710-21kworker/7:2+events_freezable_power_22:54:5613
2059532994039,1cyclictest2319873-21nodev-device-ev00:10:1814
2059530994036,4cyclictest0-21swapper/719:35:4413
2059530994036,4cyclictest0-21swapper/719:14:0813
2059530994036,0cyclictest0-21swapper/719:40:4813
2059530994036,0cyclictest0-21swapper/700:32:2413
2059530994013,23cyclictest2065435-21kworker/u32:4+events_unbound20:08:4013
205953099400,36cyclictest0-21swapper/700:03:2113
2059530993939,0cyclictest0-21swapper/720:45:1713
2059530993939,0cyclictest0-21swapper/720:45:1713
205953099390,35cyclictest0-21swapper/723:58:5013
205953099390,35cyclictest0-21swapper/723:58:4913
205953099390,35cyclictest0-21swapper/720:58:4113
205953099390,35cyclictest0-21swapper/720:44:4813
205953099390,35cyclictest0-21swapper/720:27:5213
2059525993937,2cyclictest0-21swapper/622:05:1912
2059555993837,1cyclictest2248433-21kworker/15:2+events00:35:067
2059555993837,1cyclictest2128692-21kworker/15:0+events22:46:027
2059555993837,1cyclictest2128692-21kworker/15:0+events20:49:597
2059555993837,1cyclictest2128692-21kworker/15:0+events20:49:597
2059545993837,1cyclictest2311317-21nodev-device-ev00:00:204
2059530993835,3cyclictest0-21swapper/722:17:1113
2059530993834,4cyclictest0-21swapper/723:04:3213
2059530993834,0cyclictest0-21swapper/721:35:2713
2059530993830,4cyclictest0-21swapper/700:28:4813
205953099380,34cyclictest0-21swapper/721:59:3513
205953099380,34cyclictest0-21swapper/721:01:2713
205953099380,34cyclictest0-21swapper/720:52:0913
205953099380,34cyclictest0-21swapper/720:52:0913
205953099380,34cyclictest0-21swapper/719:31:5213
205953099380,34cyclictest0-21swapper/719:25:2213
2059555993736,1cyclictest2248433-21kworker/15:2+events23:53:597
2059555993736,1cyclictest2248433-21kworker/15:2+events23:53:597
2059555993736,1cyclictest2248433-21kworker/15:2+events23:47:117
2059555993736,1cyclictest2248433-21kworker/15:2+events23:40:097
2059555993736,1cyclictest2248433-21kworker/15:2+events23:34:337
2059555993736,1cyclictest2248433-21kworker/15:2+events23:26:007
2059555993736,1cyclictest2248433-21kworker/15:2+events23:14:327
2059555993736,1cyclictest2248433-21kworker/15:2+events23:07:137
2059555993736,1cyclictest2248433-21kworker/15:2+events22:58:397
2059555993736,1cyclictest2248433-21kworker/15:2+events00:31:197
2059555993736,1cyclictest2248433-21kworker/15:2+events00:27:197
2059555993736,1cyclictest2248433-21kworker/15:2+events00:21:357
2059555993736,1cyclictest2248433-21kworker/15:2+events00:10:577
2059555993736,1cyclictest2248433-21kworker/15:2+events00:09:197
2059555993736,1cyclictest2128692-21kworker/15:0+events22:42:427
2059555993736,1cyclictest2128692-21kworker/15:0+events22:36:567
2059555993736,1cyclictest2128692-21kworker/15:0+events22:31:197
2059555993736,1cyclictest2128692-21kworker/15:0+events22:26:567
2059555993736,1cyclictest2128692-21kworker/15:0+events22:17:057
2059555993736,1cyclictest2128692-21kworker/15:0+events22:10:477
2059555993736,1cyclictest2128692-21kworker/15:0+events22:05:127
2059555993736,1cyclictest2128692-21kworker/15:0+events21:50:417
2059555993736,1cyclictest2128692-21kworker/15:0+events21:45:437
2059555993736,1cyclictest2128692-21kworker/15:0+events21:32:237
2059555993736,1cyclictest2128692-21kworker/15:0+events21:23:537
2059555993736,1cyclictest2128692-21kworker/15:0+events21:15:297
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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