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2026-09-10 - 17:21
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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 Thu Sep 10, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285021820,5sleep12734999cyclictest11:00:451
1068911250,8ptp4l25023-21kworker/3:209:38:013
108532860,2sleep00-21swapper/012:02:310
306082670,1sleep20-21swapper/214:01:132
270312654,9sleep00-21swapper/009:37:490
147742630,2sleep10-21swapper/114:19:431
279872620,2sleep00-21swapper/015:05:510
279872620,2sleep00-21swapper/015:05:510
27349996154,3cyclictest25-21ksoftirqd/114:45:411
27349995750,4cyclictest25-21ksoftirqd/113:45:421
27349995649,3cyclictest25-21ksoftirqd/109:50:371
27349995649,3cyclictest25-21ksoftirqd/109:50:371
27349995649,3cyclictest25-21ksoftirqd/109:45:361
27349995649,3cyclictest25-21ksoftirqd/109:45:361
27349995346,4cyclictest25-21ksoftirqd/113:10:401
152422530,1sleep215244-21rm13:45:512
2736399528,12cyclictest31193-21awk10:50:543
27349994941,4cyclictest25-21ksoftirqd/111:20:401
27349994841,3cyclictest25-21ksoftirqd/110:25:371
2736399471,13cyclictest25268-21sed13:55:563
2736399462,14cyclictest17427-21diskstats13:15:433
2736399462,14cyclictest17427-21diskstats13:15:433
2736399456,6cyclictest278892sleep311:46:243
27349994537,4cyclictest25-21ksoftirqd/112:35:411
27349994437,3cyclictest25-21ksoftirqd/110:40:301
27349994422,8cyclictest25-21ksoftirqd/110:50:411
27349994422,4cyclictest25-21ksoftirqd/111:05:541
2736399421,12cyclictest20465-21diskmemload12:08:403
27349994235,3cyclictest25-21ksoftirqd/114:30:421
27349994217,4cyclictest25-21ksoftirqd/111:40:451
27349994212,7cyclictest25-21ksoftirqd/112:45:291
106891420,1ptp4l401ktimersoftd/314:23:033
2734999413,4cyclictest121rcu_preempt13:00:291
27349994130,5cyclictest25-21ksoftirqd/112:15:391
27349994117,4cyclictest25-21ksoftirqd/112:52:231
27349994117,4cyclictest25-21ksoftirqd/111:50:551
27349994115,4cyclictest25-21ksoftirqd/113:00:311
2734999409,8cyclictest25-21ksoftirqd/113:35:301
27349994033,3cyclictest25-21ksoftirqd/113:35:351
27349994029,3cyclictest25-21ksoftirqd/114:25:311
27349994025,3cyclictest25-21ksoftirqd/110:55:491
27349994015,4cyclictest25-21ksoftirqd/111:55:461
27349994012,5cyclictest25-21ksoftirqd/114:56:011
106891400,1ptp4l401ktimersoftd/313:10:023
106891400,1ptp4l401ktimersoftd/312:33:373
106891400,1ptp4l401ktimersoftd/311:44:353
308702390,2sleep10-21swapper/114:35:491
27349993916,4cyclictest25-21ksoftirqd/110:35:421
27349993915,4cyclictest25-21ksoftirqd/114:40:421
106891390,1ptp4l401ktimersoftd/312:55:413
106891390,1ptp4l401ktimersoftd/312:10:503
27349993829,3cyclictest25-21ksoftirqd/114:00:451
27349993827,3cyclictest25-21ksoftirqd/113:20:411
2734999382,3cyclictest121rcu_preempt15:05:321
27349993822,13cyclictest25-21ksoftirqd/114:10:301
27349993813,4cyclictest25-21ksoftirqd/112:20:401
27349993813,4cyclictest25-21ksoftirqd/111:45:431
106891380,1ptp4l401ktimersoftd/314:53:103
106891380,1ptp4l401ktimersoftd/314:41:443
106891380,1ptp4l401ktimersoftd/314:36:503
106891380,1ptp4l401ktimersoftd/313:53:323
106891380,1ptp4l401ktimersoftd/313:47:053
106891380,1ptp4l401ktimersoftd/313:33:303
106891380,1ptp4l401ktimersoftd/312:41:023
106891380,1ptp4l401ktimersoftd/312:40:013
106891380,0ptp4l401ktimersoftd/314:31:593
106891380,0ptp4l401ktimersoftd/313:12:493
2734999374,3cyclictest25-21ksoftirqd/114:10:511
27349993730,3cyclictest25-21ksoftirqd/113:50:411
27349993727,3cyclictest25-21ksoftirqd/114:25:581
27349993725,4cyclictest25-21ksoftirqd/115:05:361
27349993725,4cyclictest25-21ksoftirqd/115:05:361
27349993721,12cyclictest25-21ksoftirqd/114:55:311
27349993720,3cyclictest25-21ksoftirqd/110:45:381
106891370,1ptp4l401ktimersoftd/314:25:343
106891370,1ptp4l401ktimersoftd/314:19:203
106891370,1ptp4l401ktimersoftd/314:11:153
106891370,1ptp4l401ktimersoftd/314:06:303
106891370,1ptp4l401ktimersoftd/314:04:523
106891370,1ptp4l401ktimersoftd/313:44:033
106891370,1ptp4l401ktimersoftd/313:36:483
106891370,1ptp4l401ktimersoftd/313:28:003
106891370,1ptp4l401ktimersoftd/313:21:443
106891370,1ptp4l401ktimersoftd/312:47:283
106891370,1ptp4l401ktimersoftd/311:51:043
106891370,1ptp4l401ktimersoftd/310:30:413
106891370,1ptp4l401ktimersoftd/310:30:173
106891370,0ptp4l401ktimersoftd/311:56:003
27349993627,4cyclictest25-21ksoftirqd/110:30:391
27349993615,4cyclictest25-21ksoftirqd/111:10:441
2734999361,4cyclictest121rcu_preempt12:45:441
27349993611,4cyclictest25-21ksoftirqd/112:00:381
118832360,4sleep22735799cyclictest14:50:192
106891360,1ptp4l401ktimersoftd/315:09:533
106891360,1ptp4l401ktimersoftd/315:09:533
106891360,1ptp4l401ktimersoftd/315:01:183
106891360,1ptp4l401ktimersoftd/315:01:183
106891360,1ptp4l401ktimersoftd/312:51:213
106891360,1ptp4l401ktimersoftd/312:26:323
106891360,1ptp4l401ktimersoftd/312:16:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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