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2025-12-29 - 23:54
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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 rackcslot3.osadl.org (updated Mon Dec 29, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/111:06:041
81740rcu_preempt0-21swapper/110:54:501
81730rcu_preempt0-21swapper/110:37:521
81720rcu_preempt4580-21sendmail_mailst12:36:070
81720rcu_preempt25585-21ssh10:25:561
81710rcu_preempt2569-21sshd12:33:131
81710rcu_preempt0-21swapper/111:16:001
81700rcu_preempt19-21ksoftirqd/112:01:521
81690rcu_preempt19-21ksoftirqd/112:14:431
81680rcu_preempt32558-21sh12:29:460
81680rcu_preempt2663-21sh11:36:510
81680rcu_preempt19-21ksoftirqd/111:37:081
81680rcu_preempt0-21swapper/112:36:091
81680rcu_preempt0-21swapper/009:41:580
81680rcu_preempt0-21swapper/009:31:220
81680rcu_preempt0-21swapper/009:20:550
81680rcu_preempt0-21swapper/008:50:550
81670rcu_preempt15548-21cpufreq07:10:421
81670rcu_preempt0-21swapper/010:45:460
81660rcu_preempt15122-21ntp_states07:06:040
81660rcu_preempt13522-21diskmemload11:48:140
81660rcu_preempt0-21swapper/010:41:290
81660rcu_preempt0-21swapper/010:12:590
81650rcu_preempt0-21swapper/010:00:450
81640rcu_preempt19494-21ssh12:06:050
81640rcu_preempt0-21swapper/108:46:061
81640rcu_preempt0-21swapper/010:40:130
81640rcu_preempt0-21swapper/009:45:460
81640rcu_preempt0-21swapper/007:26:590
81630rcu_preempt25707-21munin-run07:50:410
81630rcu_preempt0-21swapper/011:58:320
81630rcu_preempt0-21swapper/011:33:190
81630rcu_preempt0-21swapper/011:06:560
81610rcu_preempt8062-21ntp_kernel_pll_08:46:020
81610rcu_preempt0-21swapper/008:26:050
81600rcu_preempt6503-21if_err_wlan008:41:020
81600rcu_preempt5537-21ssh09:50:580
81600rcu_preempt0-21swapper/007:51:060
81590rcu_preempt645-21ssh09:41:591
81590rcu_preempt19154-21smartctl07:21:071
81590rcu_preempt14500-21needreboot10:06:020
81590rcu_preempt0-21swapper/110:40:491
81580rcu_preempt8367-21ssh11:46:281
81580rcu_preempt6872-21ssh11:45:411
81580rcu_preempt32763-21ssh11:33:361
81580rcu_preempt29455-21ssh11:27:400
81580rcu_preempt28802-21ssh12:21:511
81580rcu_preempt26294-21ssh11:22:080
81580rcu_preempt15397-21ssh12:00:191
81580rcu_preempt14371-21grep11:01:100
81580rcu_preempt12386-21ssh10:02:091
81580rcu_preempt0-21swapper/110:31:021
81580rcu_preempt0-21swapper/109:50:131
81580rcu_preempt0-21swapper/109:33:381
81580rcu_preempt0-21swapper/109:01:031
81580rcu_preempt0-21swapper/108:51:051
81580rcu_preempt0-21swapper/108:01:061
81580rcu_preempt0-21swapper/107:45:581
81580rcu_preempt0-21swapper/107:35:581
81580rcu_preempt0-21swapper/012:11:180
81580rcu_preempt0-21swapper/010:22:360
81580rcu_preempt0-21swapper/008:11:000
81570rcu_preempt8050-21ssh09:55:511
81570rcu_preempt5213-21ssh09:50:491
81570rcu_preempt30555-21ssh09:37:491
81570rcu_preempt24993-21ssh10:24:381
81570rcu_preempt23429-21sed09:26:010
81570rcu_preempt22751-21ssh09:25:491
81570rcu_preempt21327-21ssh09:21:441
81570rcu_preempt16749-21ssh10:10:481
81570rcu_preempt15069-21ssh09:11:341
81570rcu_preempt14734-21ssh11:01:491
81570rcu_preempt0-21swapper/112:27:121
81570rcu_preempt0-21swapper/112:15:531
81570rcu_preempt0-21swapper/111:30:161
81570rcu_preempt0-21swapper/111:11:491
81570rcu_preempt0-21swapper/110:47:451
81570rcu_preempt0-21swapper/110:08:151
81570rcu_preempt0-21swapper/109:19:321
81570rcu_preempt0-21swapper/107:55:571
81570rcu_preempt0-21swapper/011:44:450
81570rcu_preempt0-21swapper/011:15:120
81560rcu_preempt30430-21ssh10:33:580
81560rcu_preempt11797-21ssh11:53:101
81560rcu_preempt0-21swapper/112:05:571
81560rcu_preempt0-21swapper/110:57:151
81560rcu_preempt0-21swapper/110:16:201
81560rcu_preempt0-21swapper/109:05:581
81560rcu_preempt0-21swapper/108:58:581
81560rcu_preempt0-21swapper/107:51:041
81560rcu_preempt0-21swapper/107:10:591
81560rcu_preempt0-21swapper/012:20:560
81560rcu_preempt0-21swapper/011:18:190
81560rcu_preempt0-21swapper/009:35:450
81560rcu_preempt0-21swapper/009:11:130
81560rcu_preempt0-21swapper/007:25:140
81560rcu_preempt0-21swapper/007:13:230
81550rcu_preempt8812-21ssh10:51:340
81550rcu_preempt26356-21ssh11:22:191
81550rcu_preempt0-21swapper/108:30:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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