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2026-09-22 - 22:07
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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 Tue Sep 22, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
466421870,4sleep1898399cyclictest11:48:231
2404421550,4sleep1898399cyclictest14:21:561
1452821360,4sleep0897899cyclictest14:44:390
1068911150,8ptp4l7620-21kworker/3:109:42:393
45662730,2sleep20-21swapper/215:07:302
106891720,1ptp4l401ktimersoftd/312:59:403
898399700,3cyclictest31518-21ssh12:48:411
106891650,1ptp4l401ktimersoftd/313:47:583
898399649,22cyclictest26750-21sh12:43:551
106891640,1ptp4l401ktimersoftd/312:24:373
52682630,2sleep20-21swapper/211:49:242
85942624,10sleep10-21swapper/109:43:241
898399610,4cyclictest29726-21ssh12:14:161
175152600,2sleep10-21swapper/110:02:201
898399597,26cyclictest311412chrt10:32:031
89672590,2sleep30-21swapper/313:32:233
86552584,41sleep00-21swapper/009:44:120
29542580,2sleep2321ktimersoftd/212:52:312
106891580,1ptp4l401ktimersoftd/313:26:163
898399570,3cyclictest0-21swapper/111:35:001
106891550,1ptp4l401ktimersoftd/312:15:393
898399547,24cyclictest19285-21sendmail_mailqu11:12:271
86322544,37sleep20-21swapper/209:43:532
898399520,3cyclictest1940-21diskmemload14:16:191
298342520,1sleep30-21swapper/314:27:283
8983995010,28cyclictest1300-21seq12:17:401
898399498,25cyclictest91592chrt12:58:451
229122490,2sleep30-21swapper/312:40:443
898399488,26cyclictest32646-21/usr/sbin/munin13:57:371
898399480,2cyclictest103072chrt10:53:301
106891480,10ptp4l401ktimersoftd/315:15:573
106891480,10ptp4l401ktimersoftd/315:15:573
106891470,0ptp4l401ktimersoftd/309:54:083
898399467,24cyclictest25061-21/usr/sbin/munin11:27:281
8978994635,6cyclictest9-21ksoftirqd/011:27:290
250212460,2sleep10-21swapper/113:47:551
106891460,2ptp4l11387-21kworker/3:212:51:283
106891460,1ptp4l401ktimersoftd/313:57:343
106891460,1ptp4l401ktimersoftd/312:00:383
106891460,1ptp4l401ktimersoftd/311:55:113
106891450,8ptp4l401ktimersoftd/313:52:553
898399440,3cyclictest3376-21taskset12:52:381
898399433,31cyclictest21418-21apt-get13:12:181
898399433,31cyclictest16386-21apt-get14:47:231
898399420,4cyclictest24011-21ssh14:54:141
106891420,1ptp4l401ktimersoftd/312:42:443
8987994127,11cyclictest33-21ksoftirqd/212:07:272
106891410,1ptp4l401ktimersoftd/314:02:193
106891410,1ptp4l401ktimersoftd/312:11:143
106891410,0ptp4l401ktimersoftd/313:42:133
106891410,0ptp4l401ktimersoftd/313:42:133
898399393,29cyclictest1418-21apt-get10:37:171
898399393,29cyclictest13295-21apt-get11:02:161
898399392,29cyclictest22772-21apt-get11:22:171
106891390,1ptp4l401ktimersoftd/314:59:373
106891390,1ptp4l401ktimersoftd/314:41:503
106891390,1ptp4l401ktimersoftd/314:36:293
106891390,1ptp4l401ktimersoftd/313:07:473
106891390,1ptp4l401ktimersoftd/311:37:223
898399383,28cyclictest19394-21apt-get10:07:141
898399383,27cyclictest6159-21apt-get10:47:171
898399382,29cyclictest26113-21apt-get14:57:201
898399380,4cyclictest15308-21seq13:05:581
106891380,1ptp4l401ktimersoftd/315:03:593
106891380,1ptp4l401ktimersoftd/314:52:013
106891380,1ptp4l401ktimersoftd/314:24:203
106891380,1ptp4l401ktimersoftd/314:18:143
106891380,1ptp4l401ktimersoftd/312:17:373
106891380,1ptp4l401ktimersoftd/311:51:193
106891380,0ptp4l401ktimersoftd/313:29:123
898399373,26cyclictest9238-21apt-get09:47:151
898399373,26cyclictest24142-21apt-get10:17:131
898399370,4cyclictest9572-21ssh11:53:201
898399370,4cyclictest21259-21irqrtprio11:17:231
898399370,4cyclictest19967-21unixbench_singl13:42:391
898399370,4cyclictest19967-21unixbench_singl13:42:391
898399370,3cyclictest26400-21cut13:17:181
898399370,2cyclictest0-21swapper/113:32:261
106891370,1ptp4l401ktimersoftd/313:41:163
106891370,1ptp4l401ktimersoftd/313:41:163
106891370,1ptp4l401ktimersoftd/313:18:093
106891370,1ptp4l401ktimersoftd/312:53:293
106891370,1ptp4l401ktimersoftd/312:02:453
106891370,1ptp4l401ktimersoftd/312:02:453
106891370,0ptp4l401ktimersoftd/314:56:433
106891370,0ptp4l401ktimersoftd/312:28:143
106891370,0ptp4l401ktimersoftd/311:03:233
106891370,0ptp4l401ktimersoftd/310:33:473
898399363,27cyclictest22026-21apt-get12:07:211
8983993616,17cyclictest5428-21grep13:27:411
8983993615,18cyclictest5430-21sed12:22:291
898399360,9cyclictest0-21swapper/114:28:521
106891360,1ptp4l401ktimersoftd/315:10:053
106891360,1ptp4l401ktimersoftd/314:42:463
106891360,0ptp4l401ktimersoftd/311:25:373
106891360,0ptp4l401ktimersoftd/310:25:403
898399358,23cyclictest24562-21cat14:22:211
898399353,26cyclictest12280-21apt-get09:52:161
8983993515,17cyclictest17677-21sh13:42:001
8983993515,17cyclictest17677-21sh13:42:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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