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2026-04-02 - 03:53
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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 Wed Apr 01, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
282890623290,1sleep02828904-21systemd-run11:40:010
275396921160,1sleep10-21swapper/110:50:181
2440134992421,1cyclictest0-21swapper/312:25:123
2440134992320,1cyclictest0-21swapper/308:25:013
2440134992320,1cyclictest0-21swapper/307:40:143
2440134992220,0cyclictest0-21swapper/310:45:243
2440134992119,1cyclictest0-21swapper/311:45:223
2440134992119,1cyclictest0-21swapper/310:55:013
2440134992119,1cyclictest0-21swapper/309:05:203
2440134992118,1cyclictest0-21swapper/311:30:003
2440134992118,1cyclictest0-21swapper/309:25:163
2440134992118,1cyclictest0-21swapper/309:20:003
2440134992118,1cyclictest0-21swapper/308:45:013
2440134992118,1cyclictest0-21swapper/307:25:203
244013499209,7cyclictest24806932sleep307:38:383
2440134992018,1cyclictest0-21swapper/312:25:013
2440134992018,1cyclictest0-21swapper/310:20:013
2440134992017,1cyclictest0-21swapper/311:55:013
2440134992017,1cyclictest0-21swapper/311:44:123
2440134992017,1cyclictest0-21swapper/311:05:253
2440134992017,1cyclictest0-21swapper/310:25:203
2440134992017,1cyclictest0-21swapper/310:00:183
2440134992017,1cyclictest0-21swapper/309:35:133
2440134992017,1cyclictest0-21swapper/309:35:133
2440134992017,1cyclictest0-21swapper/308:20:013
244013499201,15cyclictest2795805-21taskset11:15:213
244013499201,14cyclictest2577399-21sleep08:59:563
244013499198,7cyclictest25901982sleep309:03:573
244013499192,13cyclictest2508612-21taskset08:00:183
2440134991916,1cyclictest0-21swapper/312:10:123
2440134991916,1cyclictest0-21swapper/311:30:183
2440134991916,1cyclictest0-21swapper/311:10:183
2440134991916,1cyclictest0-21swapper/311:00:123
2440134991916,1cyclictest0-21swapper/310:35:013
2440134991916,1cyclictest0-21swapper/310:10:113
2440134991916,1cyclictest0-21swapper/307:50:153
244013499189,7cyclictest25063912sleep307:57:263
244013499189,7cyclictest25063912sleep307:57:253
244013499182,13cyclictest2921333-21taskset12:38:453
244013499182,13cyclictest2711300-21taskset10:20:463
2440134991816,1cyclictest0-21swapper/309:13:433
2440134991816,1cyclictest0-21swapper/308:35:183
2440134991816,1cyclictest0-21swapper/307:20:003
2440134991815,1cyclictest0-21swapper/312:04:463
2440134991815,1cyclictest0-21swapper/309:55:203
2440134991815,1cyclictest0-21swapper/309:30:133
2440134991815,1cyclictest0-21swapper/308:45:173
2440134991815,1cyclictest0-21swapper/308:30:273
2440134991814,1cyclictest0-21swapper/312:00:003
244013499181,13cyclictest2805572-21taskset11:24:563
244013499181,13cyclictest2805572-21taskset11:24:563
244013499181,13cyclictest2666234-21taskset09:54:563
244013499181,13cyclictest2515651-21taskset08:05:193
244013499181,13cyclictest2515651-21taskset08:05:183
244013499181,13cyclictest2487771-21taskset07:45:153
244013499178,6cyclictest2570984-21sleep08:54:563
2440134991715,1cyclictest0-21swapper/312:30:183
2440134991715,1cyclictest0-21swapper/312:10:003
2440134991715,1cyclictest0-21swapper/309:15:223
2440134991715,1cyclictest0-21swapper/307:10:193
2440134991714,1cyclictest0-21swapper/309:50:003
2440134991714,1cyclictest0-21swapper/309:40:203
2440134991714,1cyclictest0-21swapper/307:20:143
244013499171,13cyclictest2883818-21taskset12:15:163
244013499171,13cyclictest2759578-21taskset10:55:123
244013499171,13cyclictest2742651-21taskset10:41:543
244013499171,12cyclictest2733672-21taskset10:35:213
27279872162,11sleep2222-21plymouthd10:34:172
26661452161,5sleep12666151-21ssh09:54:381
2440134991614,1cyclictest0-21swapper/310:05:203
244013499161,12cyclictest2821348-21taskset11:35:063
244013499161,12cyclictest2539057-21taskset08:25:073
244013499161,12cyclictest2474307-21taskset07:34:323
244013499161,11cyclictest2519745-21chrt08:10:123
25956522151,10sleep22595745-21ntpq09:05:202
28756752142,8sleep02875672-21apt-get12:10:110
27035592130,3sleep2222-21plymouthd10:15:482
25316342131,9sleep02531804-21cat08:15:260
129998130,8rtkit-daemon2867637-21/usr/sbin/munin12:05:010
129998130,5rtkit-daemon171rcu_preempt10:20:011
129998130,2rtkit-daemon171rcu_preempt12:02:522
29203702120,1sleep00-21swapper/012:35:460
28841202120,9sleep02884944-21cut12:15:180
28830632121,4sleep12883069-21ssh12:14:591
27183682120,9sleep02718409-21ntpq10:25:240
26949162120,3sleep02695062-21ntpq10:10:210
26895222120,9sleep02689745-21grep10:10:010
24682072120,3sleep02468240-21apt-get07:30:120
2440134991210,1cyclictest0-21swapper/307:10:003
129998120,8rtkit-daemon2858658-21ssh11:56:301
129998120,7rtkit-daemon2681825-21systemd-run10:05:011
129998120,7rtkit-daemon2456553-21irqrtprio07:20:161
129998120,7rtkit-daemon2195379-21ntpd07:25:471
129998120,4rtkit-daemon703-21mta-sts-daemon07:52:501
129998120,4rtkit-daemon2612518-21ssh09:20:131
129998120,4rtkit-daemon222-21plymouthd10:44:300
29180862110,8sleep12914325-21/usr/sbin/munin12:35:191
27813792110,3sleep10-21swapper/111:06:471
27587252110,8sleep22758731-21ssh10:53:372
27202022110,4sleep2222-21plymouthd10:29:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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