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2025-12-30 - 17:54
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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 Tue Dec 30, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38285592390,2sleep1321rcuc/107:30:201
3796301992926,1cyclictest0-21swapper/307:40:153
3796301992319,1cyclictest0-21swapper/312:10:013
3796301992217,2cyclictest0-21swapper/307:31:303
3796301992110,7cyclictest4055433-21turbostat10:30:003
3796301992016,1cyclictest0-21swapper/308:10:003
379630199201,14cyclictest4023383-21sleep10:05:003
379630199193,12cyclictest4178225-21turbostat12:05:003
3796301991916,1cyclictest0-21swapper/308:25:003
379630199191,13cyclictest4146200-21turbostat11:39:593
379630199191,13cyclictest4010309-21taskset09:55:003
379630199191,13cyclictest3811215-21taskset07:19:563
379630199182,12cyclictest4068262-21turbostat10:40:013
3796301991815,1cyclictest0-21swapper/312:25:243
3796301991815,1cyclictest0-21swapper/311:25:023
3796301991815,1cyclictest0-21swapper/311:00:163
3796301991814,1cyclictest0-21swapper/311:35:013
379630199181,13cyclictest4152629-21turbostat11:45:003
379630199181,13cyclictest4074140-21chrt10:40:243
379630199181,12cyclictest4184657-21sleep12:14:553
379630199181,12cyclictest3997494-21turbostat09:45:003
379630199181,12cyclictest3952650-21sleep09:10:003
379630199181,12cyclictest3908032-21taskset08:35:023
3796301991715,1cyclictest0-21swapper/311:15:013
379630199171,13cyclictest3868427-21taskset08:00:233
379630199171,12cyclictest4100630-21taskset11:05:133
379630199171,12cyclictest3901422-21taskset08:30:013
379630199171,12cyclictest3837103-21taskset07:39:553
379630199170,12cyclictest3933639-21taskset08:55:013
379630199170,12cyclictest16622-21chrt12:30:013
39013842161,8sleep23901409-21/usr/sbin/munin08:30:012
3796301991613,1cyclictest0-21swapper/311:50:003
3796301991613,1cyclictest0-21swapper/310:15:163
3796301991613,1cyclictest0-21swapper/310:15:163
3796301991613,1cyclictest0-21swapper/309:10:233
3796301991612,1cyclictest0-21swapper/310:55:173
379630199161,12cyclictest9244-21taskset12:20:233
379630199161,12cyclictest4171800-21taskset11:59:553
379630199161,12cyclictest4132780-21taskset11:26:013
379630199161,12cyclictest4081493-21taskset10:50:143
379630199161,12cyclictest3978078-21taskset09:27:433
379630199161,12cyclictest3888149-21chrt08:18:063
379630199161,12cyclictest3849635-21taskset07:45:523
379630199161,11cyclictest4035852-21taskset10:10:473
379630199161,11cyclictest4010517-21taskset09:55:093
379630199160,8cyclictest4061833-21taskset10:34:553
379630199160,13cyclictest3920589-21chrt08:44:593
379630199156,6cyclictest39592572sleep309:15:103
379630199156,6cyclictest21302sleep312:15:193
3796301991513,1cyclictest0-21swapper/307:50:183
379630199151,11cyclictest4165224-21chrt11:52:423
379630199151,11cyclictest4113611-21taskset11:15:073
379630199151,11cyclictest4048681-21chrt10:21:053
379630199151,11cyclictest4003668-21taskset09:47:113
379630199151,11cyclictest3990215-21taskset09:35:203
379630199151,11cyclictest3970973-21chrt09:20:233
379630199151,11cyclictest3940299-21taskset09:00:143
379630199151,11cyclictest3933096-21taskset08:51:123
379630199151,11cyclictest3925087-21taskset08:45:193
379630199151,11cyclictest3907481-21taskset08:31:043
379630199151,11cyclictest3817499-21chrt07:22:123
379630199151,10cyclictest3818012-21chrt07:25:123
379630199150,12cyclictest4075101-21taskset10:45:143
379630199150,12cyclictest3978510-21chrt09:30:073
379630199150,12cyclictest3862435-21chrt07:55:503
379630199150,12cyclictest3802306-21chrt07:10:413
91602145,6sleep29243-21/usr/sbin/munin12:20:232
379630199141,10cyclictest23033-21taskset12:35:063
379630199140,11cyclictest4023611-21taskset10:05:113
379630199140,11cyclictest3875762-21taskset08:10:043
307598140,9rtkit-daemon10449-21diskstats12:25:132
39230772131,2sleep20-21swapper/208:45:192
41798772120,9sleep10-21swapper/112:05:191
39077872124,6sleep13907793-21cron08:35:001
244722120,8sleep126288-21grep12:35:171
41045932110,1sleep0221rcuc/011:05:180
39917582111,7sleep13992007-21sed09:40:161
39810292110,8sleep23983074-21grep09:30:192
39462162110,8sleep03946311-21grep09:05:010
39077802110,8sleep03907781-21turbostat.cron08:34:550
307598110,7rtkit-daemon714-21snmpd07:57:382
307598110,4rtkit-daemon714-21snmpd10:56:522
307598110,4rtkit-daemon475-21wpa_supplicant08:58:511
307598110,3rtkit-daemon3802899-21munin-node10:12:171
121822111,7sleep014165-21kthreadcore12:25:180
41848882102,4sleep24184921-21apt-get12:10:132
40635142100,7sleep04065280-21grep10:35:170
39602132100,7sleep23961140-21grep09:15:172
38821532100,3sleep23882186-21apt-get08:15:132
38619132100,7sleep13856617-21/usr/sbin/munin07:55:211
38506252100,7sleep13851336-21irqrtprio07:50:161
38118922100,7sleep13812277-21irqcore07:20:141
307598100,6rtkit-daemon493-21gmain11:47:572
307598100,6rtkit-daemon3256-21sendmail-mta11:23:462
307598100,5rtkit-daemon4146480-21apt-get11:40:122
307598100,5rtkit-daemon4119099-21python311:15:252
307598100,5rtkit-daemon217-21plymouthd10:31:521
307598100,2rtkit-daemon217-21plymouthd10:52:202
307598100,2rtkit-daemon217-21plymouthd09:30:381
4087680291,4sleep04087713-21apt-get10:55:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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