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2025-11-23 - 23:45
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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 Nov 23, 2025 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293829199301,13cyclictest3177167-21turbostat10:05:003
2938291992623,1cyclictest0-21swapper/310:35:283
2938291992522,1cyclictest0-21swapper/309:25:243
2938291992521,1cyclictest0-21swapper/312:10:013
2938291992220,1cyclictest0-21swapper/310:15:003
2938291992118,1cyclictest0-21swapper/311:10:243
293829199198,7cyclictest30955032sleep309:11:033
2938291991916,1cyclictest0-21swapper/312:15:213
293829199191,14cyclictest3330378-21taskset11:40:143
293829199191,13cyclictest3353948-21taskset11:55:013
293829199191,13cyclictest3305898-21taskset11:25:113
293829199191,13cyclictest3052281-21taskset08:40:013
30650472180,1sleep20-21swapper/208:50:132
293829199182,12cyclictest3002577-21turbostat08:00:003
2938291991815,1cyclictest0-21swapper/309:55:003
293829199181,13cyclictest3137179-21turbostat09:40:013
293829199181,13cyclictest3028044-21taskset08:20:173
293829199176,7cyclictest29834392sleep307:40:273
293829199172,12cyclictest3265389-21turbostat11:00:003
2938291991715,1cyclictest0-21swapper/309:40:143
2938291991714,1cyclictest0-21swapper/311:25:013
2938291991714,1cyclictest0-21swapper/310:45:003
2938291991713,1cyclictest0-21swapper/311:10:003
2938291991713,1cyclictest0-21swapper/311:10:003
293829199171,13cyclictest3070678-21chrt08:54:033
293829199171,12cyclictest3400317-21taskset12:21:093
293829199171,12cyclictest3167326-21chrt09:55:313
293829199171,12cyclictest3111626-21taskset09:21:323
293829199171,12cyclictest3021161-21turbostat08:15:003
293829199171,12cyclictest3014934-21taskset08:09:553
293829199171,12cyclictest2944458-21turbostat07:15:013
293829199170,13cyclictest2977425-21chrt07:36:133
2938291991614,1cyclictest0-21swapper/310:15:183
2938291991613,1cyclictest0-21swapper/310:50:173
293829199161,12cyclictest3416349-21chrt12:31:403
293829199161,12cyclictest3384625-21chrt12:11:483
293829199161,12cyclictest3362399-21taskset12:00:023
293829199161,12cyclictest3327860-21taskset11:35:243
293829199161,12cyclictest3320171-21taskset11:31:493
293829199161,12cyclictest3296916-21chrt11:19:103
293829199161,12cyclictest3272326-21taskset11:02:313
293829199161,12cyclictest3249339-21taskset10:49:443
293829199161,12cyclictest3223486-21taskset10:30:293
293829199161,12cyclictest3208672-21chrt10:23:403
293829199161,12cyclictest3183616-21taskset10:06:013
293829199161,12cyclictest3127332-21taskset09:31:103
293829199161,12cyclictest3103346-21taskset09:15:433
293829199161,12cyclictest3077190-21chrt09:00:083
293829199161,12cyclictest3045918-21turbostat08:35:003
293829199161,12cyclictest3027271-21chrt08:18:533
293829199161,12cyclictest3008663-21taskset08:03:503
293829199161,12cyclictest2995925-21taskset07:50:233
293829199161,12cyclictest2989995-21taskset07:47:033
293829199161,12cyclictest2971450-21taskset07:34:073
293829199161,11cyclictest3083410-21taskset09:05:123
293829199161,11cyclictest2965042-21taskset07:29:563
293829199160,13cyclictest3407981-21chrt12:25:433
293829199160,13cyclictest3153008-21chrt09:49:173
293829199160,12cyclictest3058633-21taskset08:45:133
293829199160,12cyclictest2958507-21chrt07:20:303
33441652150,8sleep03344173-21ssh11:46:210
32336662151,4sleep03233701-21apt-get10:40:130
2938291991512,1cyclictest0-21swapper/310:25:543
2938291991512,1cyclictest0-21swapper/307:15:173
293829199151,11cyclictest3076584-21taskset08:55:433
293829199151,11cyclictest3076584-21taskset08:55:433
293829199151,11cyclictest3057495-21taskset08:40:213
293829199151,11cyclictest3033780-21taskset08:25:093
293829199150,12cyclictest3424487-21taskset12:37:093
293829199150,12cyclictest3360170-21chrt11:56:013
293829199150,12cyclictest3338064-21chrt11:45:033
147598150,4rtkit-daemon214-21plymouthd11:58:470
147598150,2rtkit-daemon0-21swapper/208:37:112
33884292141,10sleep03390399-21cut12:15:190
33784532140,11sleep13378550-21tr12:10:151
33376712140,7sleep13337679-21ssh11:44:461
293829199143,7cyclictest29381432sleep307:10:013
33248452130,10sleep03326890-21cut11:35:190
33138392131,9sleep03313846-21sh11:30:060
147598130,6rtkit-daemon1540-21sendmail-mta11:03:520
33138562122,7sleep23313889-21apt-get11:30:122
32812022121,9sleep23281210-21ssh11:09:522
32812022121,9sleep23281210-21ssh11:09:522
31442972120,9sleep13144304-21sh09:42:191
30338192121,8sleep23033971-21df_inode08:25:142
33989632111,7sleep03399247-21memory12:20:200
33613032110,4sleep1720-21snmpd11:58:411
33268912115,4sleep10-21swapper/111:35:201
32389092110,1sleep20-21swapper/210:40:232
31672752110,8sleep13167282-21sh09:55:261
31538462110,3sleep03153977-21hddtemp_smartct09:50:200
31142782110,8sleep03115135-21tr09:25:190
30103382111,7sleep13011928-21cut08:05:161
29469272111,7sleep02946961-21fschecks_count07:15:150
147598110,7rtkit-daemon3158314-21kthreadcore09:50:232
32581222100,6sleep23258718-21irqrtprio10:55:182
32310632100,7sleep03231187-21/usr/sbin/munin10:35:280
31761742100,8sleep13176180-21ssh10:02:391
147598100,7rtkit-daemon515-21gmain11:08:160
147598100,7rtkit-daemon515-21gmain11:08:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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