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2026-03-22 - 18:32
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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 rackeslot8.osadl.org (updated Sun Mar 22, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2785370993632,1cyclictest0-21swapper/307:50:003
2785370993229,1cyclictest0-21swapper/309:10:003
27792872310,5sleep22779288-21cpuspeed_turbos07:05:122
2785370992623,1cyclictest0-21swapper/308:35:203
2785370992219,1cyclictest0-21swapper/310:30:013
32443982210,8sleep03246056-21grep12:25:180
278537099212,14cyclictest3079223-21taskset10:37:203
2785370992118,1cyclictest0-21swapper/309:20:003
2785370992118,1cyclictest0-21swapper/309:15:013
278537099211,15cyclictest3141109-21taskset11:17:303
278537099211,15cyclictest3025197-21taskset10:02:323
2785370992017,1cyclictest0-21swapper/309:35:153
2785370992017,1cyclictest0-21swapper/309:25:123
2785370991916,1cyclictest0-21swapper/310:21:043
278537099191,14cyclictest3235943-21taskset12:20:153
278537099191,14cyclictest3218358-21taskset12:07:333
278537099191,14cyclictest3202253-21taskset11:55:263
278537099191,14cyclictest2933736-21taskset09:00:233
278537099191,13cyclictest3180949-21chrt11:45:113
278537099191,13cyclictest3070387-21taskset10:30:223
129998190,5rtkit-daemon2863331-21ntpq08:05:230
2785370991816,1cyclictest0-21swapper/309:42:113
2785370991815,1cyclictest0-21swapper/312:15:243
2785370991815,1cyclictest0-21swapper/311:40:193
2785370991815,1cyclictest0-21swapper/311:40:003
2785370991815,1cyclictest0-21swapper/311:30:183
2785370991815,1cyclictest0-21swapper/309:55:143
2785370991815,1cyclictest0-21swapper/309:30:183
2785370991815,1cyclictest0-21swapper/308:20:113
278537099181,13cyclictest3193846-21taskset11:50:213
278537099181,13cyclictest3133029-21taskset11:11:243
278537099181,13cyclictest3032320-21taskset10:05:503
278537099181,13cyclictest3009653-21taskset09:52:103
278537099181,13cyclictest2963165-21taskset09:21:523
278537099181,13cyclictest2921528-21taskset08:52:013
278537099181,13cyclictest2911438-21taskset08:45:203
278537099181,13cyclictest2851720-21taskset08:00:093
278537099181,13cyclictest2844942-21taskset07:53:483
278537099181,13cyclictest2832156-21taskset07:43:463
278537099181,13cyclictest2802558-21taskset07:20:173
278537099181,13cyclictest2791557-21taskset07:14:043
278537099181,12cyclictest2870946-21chrt08:15:133
2785370991714,1cyclictest0-21swapper/312:30:153
2785370991714,1cyclictest0-21swapper/312:15:003
2785370991714,1cyclictest0-21swapper/311:30:013
2785370991714,1cyclictest0-21swapper/311:30:003
2785370991714,1cyclictest0-21swapper/308:26:133
278537099171,13cyclictest3265023-21taskset12:38:443
278537099171,13cyclictest3210905-21taskset12:03:073
278537099171,13cyclictest3119074-21taskset11:05:103
278537099171,13cyclictest3102135-21taskset10:51:243
278537099171,13cyclictest3046882-21taskset10:15:203
278537099171,13cyclictest3001492-21taskset09:45:493
278537099171,13cyclictest2870429-21taskset08:12:193
278537099171,12cyclictest3142669-21taskset11:20:143
278537099171,12cyclictest3087938-21sleep10:49:553
278537099171,12cyclictest2825106-21taskset07:35:233
278537099171,12cyclictest2806930-21chrt07:25:133
278537099171,12cyclictest2794234-21taskset07:15:153
32427162161,12sleep13242724-21find12:25:121
2785370991613,1cyclictest0-21swapper/312:25:193
2785370991613,1cyclictest0-21swapper/311:00:183
2785370991613,1cyclictest0-21swapper/310:10:173
278537099161,12cyclictest3109606-21chrt10:55:483
278537099161,12cyclictest3080455-21taskset10:40:053
278537099161,12cyclictest2927949-21taskset08:57:213
278537099161,12cyclictest2908725-21taskset08:41:103
278537099161,12cyclictest2895870-21taskset08:30:353
278537099161,12cyclictest2858111-21taskset08:05:073
278537099161,12cyclictest2851138-21taskset07:56:133
278537099161,11cyclictest2813274-21taskset07:30:033
27848722160,2sleep30-21swapper/307:06:023
31474852151,11sleep03147535-21ntpq11:20:200
30315892141,3sleep2222-21plymouthd10:05:222
29642082140,10sleep22964254-21awk09:25:002
29631072141,2sleep10-21swapper/109:21:431
32556462131,4sleep23255693-21ntpq12:30:212
129998130,9rtkit-daemon2946727-21kworker/u16:2+xprtiod09:16:521
129998130,5rtkit-daemon222-21plymouthd09:38:151
31870722121,8sleep23187078-21ssh11:46:272
31409072121,7sleep13140914-21sshd-session11:16:571
30246582124,6sleep23024663-21sshd-session10:00:562
28740732120,10sleep12870911-21/usr/sbin/munin08:15:201
27859232120,9sleep12786491-21cut07:10:181
129998120,8rtkit-daemon3226825-21ssh12:14:442
129998120,7rtkit-daemon3189624-21sed11:50:160
129998120,3rtkit-daemon2746376-21munin-node07:08:320
30727372110,8sleep03072889-21df10:35:130
30632762111,2sleep20-21swapper/210:25:532
30626872111,7sleep13062806-21python310:25:241
30399972110,1sleep20-21swapper/210:10:382
30028052110,4sleep1222-21plymouthd09:49:451
29877822112,6sleep22987819-21apt-get09:40:112
29103732110,2sleep2421rcuc/208:45:182
28706392110,8sleep22870685-21908:15:002
129998110,7rtkit-daemon3055995-21ssh10:22:232
129998110,7rtkit-daemon2815171-21cat07:30:160
32415512101,6sleep23241557-21ssh12:22:322
31716332100,6sleep13171637-21ssh11:36:161
31643552100,2sleep00-21swapper/011:32:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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