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2026-04-23 - 01:56
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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 Wed Apr 22, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1937221820,4sleep22574099cyclictest11:27:532
1068911160,8ptp4l31843-21kworker/3:108:20:563
149852830,5sleep12573199cyclictest12:28:071
192302740,5sleep119232-21irqrtprio09:12:511
25748997156,7cyclictest41-21ksoftirqd/313:02:493
25748996954,6cyclictest41-21ksoftirqd/310:37:463
25748996855,6cyclictest41-21ksoftirqd/309:52:453
25748996752,7cyclictest41-21ksoftirqd/313:17:493
25748996653,6cyclictest41-21ksoftirqd/310:32:453
25748996652,6cyclictest41-21ksoftirqd/309:57:453
292632640,2sleep10-21swapper/111:05:001
25748996449,6cyclictest41-21ksoftirqd/313:47:483
13472640,2sleep10-21swapper/113:19:581
25748996149,6cyclictest41-21ksoftirqd/310:02:453
312812570,1sleep30-21swapper/312:45:313
106891570,1ptp4l401ktimersoftd/311:55:553
106891570,1ptp4l401ktimersoftd/310:29:443
2573199568,7cyclictest7950-21sed12:22:371
2573199567,17cyclictest21759-21rm12:36:011
7112550,2sleep0708-21ssh12:47:490
106891550,1ptp4l401ktimersoftd/310:12:493
106891550,1ptp4l401ktimersoftd/310:12:493
94092540,3sleep02572499cyclictest10:44:430
25731995412,7cyclictest25-21ksoftirqd/111:42:571
105352540,2sleep00-21swapper/011:52:240
52462530,3sleep125715-21cyclictest09:52:491
25748995325,3cyclictest41-21ksoftirqd/312:32:563
2573199537,8cyclictest26959-21ps13:13:001
2573199537,8cyclictest22643-21/usr/sbin/munin13:08:081
2573199527,8cyclictest26741-21sed12:07:551
2573199516,8cyclictest3462-21unixbench_singl10:38:041
2573199516,7cyclictest21325-21acpi10:57:441
25748995038,5cyclictest41-21ksoftirqd/308:27:423
2573199507,7cyclictest32406-21irqrtprio08:32:511
2573199507,7cyclictest32406-21irqrtprio08:32:511
2573199506,8cyclictest9382-21sed08:52:491
2573199506,8cyclictest9232-21grep11:17:501
2573199506,8cyclictest23996-21sed12:37:551
2573199506,7cyclictest21000-21expr12:02:491
2573199505,8cyclictest2668-21cut09:47:461
2573199500,12cyclictest17950-21apt-config09:12:331
2573199500,12cyclictest13341-21cstates13:32:511
25724995041,4cyclictest9-21ksoftirqd/011:17:460
25748994935,6cyclictest41-21ksoftirqd/308:52:423
2573199497,8cyclictest19322-21awk11:27:531
2573199497,7cyclictest30062-21irqrtprio10:32:521
2573199496,8cyclictest23474-21gltestperf13:42:541
2573199496,8cyclictest23474-21gltestperf13:42:541
2573199493,9cyclictest15646-21latency_hist09:07:331
25748994839,4cyclictest41-21ksoftirqd/312:47:423
2573199487,7cyclictest6997-21grep12:52:581
2572499482,7cyclictest25715-21cyclictest08:22:310
2573199478,7cyclictest18069-21rm11:58:291
2573199478,7cyclictest18069-21rm11:58:291
2573199476,7cyclictest7448-21expr09:57:461
2573199475,8cyclictest4259-21fschecks_time08:42:471
2573199475,8cyclictest29461-21expr08:27:441
2573199473,7cyclictest29788-21awk12:43:071
25724994736,6cyclictest9-21ksoftirqd/008:57:440
25724994714,4cyclictest9-21ksoftirqd/013:27:550
106891470,1ptp4l401ktimersoftd/311:52:023
25748994619,5cyclictest41-21ksoftirqd/311:07:593
2573199463,7cyclictest16778-21irqrtprio13:02:561
25724994637,5cyclictest9-21ksoftirqd/013:32:490
25724994636,5cyclictest9-21ksoftirqd/013:07:510
25748994523,6cyclictest41-21ksoftirqd/310:57:483
25748994518,4cyclictest41-21ksoftirqd/313:32:533
2573199456,8cyclictest12088-21latency11:52:561
2573199455,7cyclictest29358-21timerandwakeup09:33:011
25731994515,9cyclictest25-21ksoftirqd/111:13:161
25724994518,4cyclictest9-21ksoftirqd/012:57:540
19712450,2sleep00-21swapper/011:10:210
2574899442,8cyclictest41-21ksoftirqd/311:12:513
25748994421,4cyclictest41-21ksoftirqd/313:29:003
2573199444,7cyclictest14588-21cstates10:12:471
2573199444,7cyclictest14588-21cstates10:12:471
2573199444,7cyclictest12232-21cstates10:07:481
25748994321,3cyclictest41-21ksoftirqd/313:12:583
2573199438,6cyclictest25-21ksoftirqd/110:02:541
2573199431,7cyclictest0-21swapper/110:23:021
25724994337,3cyclictest9-21ksoftirqd/011:42:400
2574899425,3cyclictest121rcu_preempt11:17:533
25748994221,3cyclictest41-21ksoftirqd/312:38:063
25748994210,4cyclictest41-21ksoftirqd/308:43:003
2574899414,7cyclictest41-21ksoftirqd/312:28:043
2574899414,3cyclictest121rcu_preempt13:42:383
25748994119,7cyclictest41-21ksoftirqd/311:27:353
25748994117,4cyclictest41-21ksoftirqd/312:22:523
2573199416,5cyclictest25-21ksoftirqd/112:23:051
2573199415,8cyclictest13178-21timerwakeupswit10:48:031
2573199414,6cyclictest25-21ksoftirqd/113:27:531
2573199414,5cyclictest25-21ksoftirqd/109:42:331
2573199411,6cyclictest0-21swapper/110:30:351
25724994126,4cyclictest9-21ksoftirqd/009:47:510
25724994121,5cyclictest9-21ksoftirqd/012:23:040
25724994119,10cyclictest9-21ksoftirqd/012:38:050
2574899404,3cyclictest121rcu_preempt13:00:393
25748994031,5cyclictest41-21ksoftirqd/309:32:453
25748994026,6cyclictest41-21ksoftirqd/313:45:343
25748994026,6cyclictest41-21ksoftirqd/313:45:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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