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2026-05-25 - 19:31
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Mon May 25, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
847821830,5sleep0491399cyclictest10:51:050
1068911790,4ptp4l401ktimersoftd/308:39:133
343421730,5sleep1491799cyclictest09:41:121
800921510,2sleep10-21swapper/114:08:071
412821490,3sleep20-21swapper/208:36:152
130921450,2sleep0491399cyclictest13:28:350
106891680,1ptp4l401ktimersoftd/312:43:543
106891680,1ptp4l401ktimersoftd/311:01:353
258912630,3sleep225893-21cpuspeed_turbos13:21:062
18362630,3sleep0111rcuc/010:43:540
86122620,4sleep125-21ksoftirqd/111:56:101
106891620,1ptp4l401ktimersoftd/311:31:183
4913996156,3cyclictest3384-1kworker/u9:212:31:040
106891580,1ptp4l401ktimersoftd/311:48:503
240622550,3sleep324060-21ssh11:06:093
270092540,3sleep125-21ksoftirqd/112:15:571
106891530,1ptp4l401ktimersoftd/314:02:383
4923995240,7cyclictest33-21ksoftirqd/209:16:002
4923995240,7cyclictest33-21ksoftirqd/209:16:002
13272510,2sleep20-21swapper/213:28:372
106891500,1ptp4l401ktimersoftd/311:58:153
4923994936,8cyclictest33-21ksoftirqd/212:31:042
106891490,1ptp4l401ktimersoftd/312:58:533
106891470,1ptp4l401ktimersoftd/311:39:273
274102460,1sleep00-21swapper/010:31:170
106891450,1ptp4l401ktimersoftd/313:08:343
106891440,0ptp4l401ktimersoftd/313:18:553
4923994322,12cyclictest47150irq/102-ens3-Tx11:16:042
106891430,0ptp4l401ktimersoftd/310:55:573
106891430,0ptp4l401ktimersoftd/310:55:573
4923994227,7cyclictest33-21ksoftirqd/210:06:012
4913994233,4cyclictest9-21ksoftirqd/012:16:040
106891420,1ptp4l401ktimersoftd/312:05:433
106891420,1ptp4l401ktimersoftd/311:41:033
106891420,1ptp4l401ktimersoftd/309:28:293
106891410,1ptp4l401ktimersoftd/312:26:003
474724020,9sleep10-21swapper/108:39:581
106891400,0ptp4l401ktimersoftd/310:52:353
4913993832,3cyclictest9-21ksoftirqd/008:40:470
106891380,1ptp4l401ktimersoftd/313:50:133
106891380,1ptp4l401ktimersoftd/313:28:483
106891380,1ptp4l401ktimersoftd/313:21:463
106891380,1ptp4l401ktimersoftd/313:13:473
106891380,1ptp4l401ktimersoftd/312:54:433
106891380,1ptp4l401ktimersoftd/312:32:573
106891380,1ptp4l401ktimersoftd/312:09:043
106891380,1ptp4l401ktimersoftd/311:27:243
106891380,0ptp4l401ktimersoftd/313:35:093
106891380,0ptp4l401ktimersoftd/311:17:053
4913993729,3cyclictest9-21ksoftirqd/011:21:040
4913993728,4cyclictest9-21ksoftirqd/012:56:050
491399371,4cyclictest121rcu_preempt11:12:120
106891370,1ptp4l401ktimersoftd/314:06:053
106891370,1ptp4l401ktimersoftd/312:40:233
106891370,1ptp4l401ktimersoftd/312:23:243
106891370,1ptp4l401ktimersoftd/312:17:163
106891370,1ptp4l401ktimersoftd/311:11:473
106891370,1ptp4l401ktimersoftd/310:46:533
106891370,1ptp4l401ktimersoftd/310:42:473
106891370,1ptp4l401ktimersoftd/308:41:153
106891370,0ptp4l401ktimersoftd/313:05:333
106891370,0ptp4l401ktimersoftd/311:22:363
4913993628,3cyclictest9-21ksoftirqd/012:06:030
106891360,1ptp4l401ktimersoftd/313:56:303
106891360,1ptp4l401ktimersoftd/312:46:253
4923993522,5cyclictest33-21ksoftirqd/211:36:042
4923993521,6cyclictest33-21ksoftirqd/209:46:012
491399356,7cyclictest121rcu_preempt13:22:180
4913993526,4cyclictest9-21ksoftirqd/011:56:030
1353623528,3sleep233-21ksoftirqd/210:56:062
1353623528,3sleep233-21ksoftirqd/210:56:062
106891350,2ptp4l30031-21kworker/3:109:31:043
4913993428,3cyclictest9-21ksoftirqd/014:05:540
4913993428,3cyclictest9-21ksoftirqd/011:55:520
4913993426,3cyclictest9-21ksoftirqd/010:26:010
106891340,1ptp4l401ktimersoftd/313:36:473
106891340,1ptp4l401ktimersoftd/311:55:443
492399334,10cyclictest33-21ksoftirqd/213:56:182
4917993327,3cyclictest25-21ksoftirqd/108:50:471
4913993320,10cyclictest9-21ksoftirqd/008:51:000
106891330,1ptp4l401ktimersoftd/312:13:223
106891330,1ptp4l401ktimersoftd/309:50:573
106891330,0ptp4l401ktimersoftd/313:41:543
492399326,3cyclictest121rcu_preempt13:11:212
4923993227,3cyclictest33-21ksoftirqd/212:36:072
4923993226,3cyclictest33-21ksoftirqd/214:10:542
4923993220,6cyclictest33-21ksoftirqd/212:51:052
4917993227,3cyclictest25-21ksoftirqd/111:00:501
4917993227,3cyclictest25-21ksoftirqd/111:00:501
4917993226,3cyclictest25-21ksoftirqd/113:30:541
4913993226,4cyclictest3384-1kworker/u9:212:26:250
4913993226,3cyclictest9-21ksoftirqd/013:15:540
4913993224,4cyclictest9-21ksoftirqd/012:36:050
4913993219,10cyclictest11774-21/usr/sbin/munin11:26:170
106891320,1ptp4l401ktimersoftd/309:14:223
106891320,1ptp4l30031-21kworker/3:110:33:473
94602310,2sleep20-21swapper/213:04:002
4923993125,3cyclictest33-21ksoftirqd/212:01:032
4923993125,3cyclictest33-21ksoftirqd/211:25:512
4923993125,3cyclictest33-21ksoftirqd/209:00:472
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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