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2025-11-26 - 17:09
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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 Wed Nov 26, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt29820-21latency_hist09:49:501
81740rcu_preempt0-21swapper/107:08:341
81710rcu_preempt0-21swapper/107:10:141
81690rcu_preempt30443-21ntpq11:45:111
81690rcu_preempt24432-21apt-get12:35:010
81690rcu_preempt21233-21ssh12:28:291
81690rcu_preempt0-21swapper/109:29:141
81690rcu_preempt0-21swapper/012:30:040
81680rcu_preempt23448-21tr10:35:091
81680rcu_preempt0-21swapper/112:30:071
81680rcu_preempt0-21swapper/107:40:131
81680rcu_preempt0-21swapper/010:10:110
81670rcu_preempt13061-21ssh09:20:010
81670rcu_preempt0-21swapper/110:54:311
81660rcu_preempt18895-21ssh09:30:050
81660rcu_preempt0-21swapper/110:55:091
81650rcu_preempt27049-21df11:40:040
81650rcu_preempt18886-21if_wlan011:25:090
81650rcu_preempt0-21swapper/109:57:001
81640rcu_preempt0-21swapper/011:50:220
81640rcu_preempt0-21swapper/009:25:110
81640rcu_preempt0-21swapper/009:16:480
81630rcu_preempt21539-21munin-run07:59:500
81630rcu_preempt0-21swapper/009:58:100
81620rcu_preempt924-21ntp_kernel_err11:50:121
81620rcu_preempt0-21swapper/009:47:460
81610rcu_preempt6959-21munin-run11:04:490
81610rcu_preempt0-21swapper/012:29:450
81610rcu_preempt0-21swapper/011:10:550
81610rcu_preempt0-21swapper/010:34:490
81610rcu_preempt0-21swapper/009:52:410
81610rcu_preempt0-21swapper/007:35:030
81600rcu_preempt28807-21if_err_eth010:45:070
81600rcu_preempt0-21swapper/009:35:100
81590rcu_preempt0-21swapper/012:00:080
81590rcu_preempt0-21swapper/011:59:210
81590rcu_preempt0-21swapper/011:22:440
81590rcu_preempt0-21swapper/010:37:320
81590rcu_preempt0-21swapper/010:00:070
81580rcu_preempt13143-21ssh12:12:590
81580rcu_preempt0-21swapper/012:07:250
81580rcu_preempt0-21swapper/011:15:110
81580rcu_preempt0-21swapper/010:18:390
81580rcu_preempt0-21swapper/009:14:300
8865995753cyclictest946-21usb-storage09:40:011
8865995753cyclictest946-21usb-storage09:40:011
81570rcu_preempt8465-21ssh10:09:080
81570rcu_preempt0-21swapper/112:12:171
81570rcu_preempt0-21swapper/110:28:101
81570rcu_preempt0-21swapper/110:10:001
81570rcu_preempt0-21swapper/109:30:051
81570rcu_preempt0-21swapper/109:18:541
81570rcu_preempt0-21swapper/108:10:291
81570rcu_preempt0-21swapper/011:35:220
81570rcu_preempt0-21swapper/011:33:100
81570rcu_preempt0-21swapper/011:08:530
81570rcu_preempt0-21swapper/010:23:480
81560rcu_preempt4645-21ssh11:56:241
81560rcu_preempt0-21swapper/111:44:211
81560rcu_preempt0-21swapper/111:26:061
81560rcu_preempt0-21swapper/111:21:451
81560rcu_preempt0-21swapper/111:15:431
81560rcu_preempt0-21swapper/111:13:081
81560rcu_preempt0-21swapper/110:43:221
81560rcu_preempt0-21swapper/110:32:161
81560rcu_preempt0-21swapper/110:14:541
81560rcu_preempt0-21swapper/110:06:381
81560rcu_preempt0-21swapper/109:52:551
81560rcu_preempt0-21swapper/109:39:041
81560rcu_preempt0-21swapper/109:24:271
81560rcu_preempt0-21swapper/109:12:591
81560rcu_preempt0-21swapper/108:56:271
81560rcu_preempt0-21swapper/108:34:271
81560rcu_preempt0-21swapper/108:05:261
81560rcu_preempt0-21swapper/008:05:140
81560rcu_preempt0-21swapper/007:30:440
81550rcu_preempt3744-21rm10:58:110
81550rcu_preempt26360-21head08:15:140
81550rcu_preempt26219-21ssh11:38:171
81550rcu_preempt23502-21ssh11:33:351
81550rcu_preempt16437-21ssh12:20:000
81550rcu_preempt0-21swapper/112:37:251
81550rcu_preempt0-21swapper/112:15:531
81550rcu_preempt0-21swapper/110:00:121
81550rcu_preempt0-21swapper/107:59:041
81550rcu_preempt0-21swapper/107:37:271
81550rcu_preempt0-21swapper/107:30:371
81550rcu_preempt0-21swapper/107:19:441
81550rcu_preempt0-21swapper/010:43:250
81550rcu_preempt0-21swapper/010:25:120
81540rcu_preempt7056-21ssh12:00:421
81540rcu_preempt26580-21kworker/0:207:05:150
81540rcu_preempt18120-21ssh12:22:071
81540rcu_preempt15868-21ssh12:18:310
81540rcu_preempt0-21swapper/112:06:491
81540rcu_preempt0-21swapper/111:08:391
81540rcu_preempt0-21swapper/109:02:151
81540rcu_preempt0-21swapper/108:21:511
81540rcu_preempt0-21swapper/011:45:360
81540rcu_preempt0-21swapper/010:53:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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