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2025-12-22 - 18:23
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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 22, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147850730irq/30-eth0-tx-41ktimersoftd/010:03:520
147850730irq/30-eth0-tx-41ktimersoftd/010:03:520
81710rcu_preempt0-21swapper/107:07:341
81700rcu_preempt5537-1kworker/0:2H10:43:470
81700rcu_preempt0-21swapper/009:15:430
81690rcu_preempt0-21swapper/111:05:471
81680rcu_preempt12702-21df11:20:360
81680rcu_preempt0-21swapper/007:10:470
81670rcu_preempt0-21swapper/112:22:081
81670rcu_preempt0-21swapper/110:59:301
81660rcu_preempt7090-21sh10:16:400
81660rcu_preempt31091-21diskmemload10:37:040
81660rcu_preempt0-21swapper/112:28:231
81660rcu_preempt0-21swapper/111:14:341
81660rcu_preempt0-21swapper/011:40:180
81650rcu_preempt0-21swapper/111:54:571
81650rcu_preempt0-21swapper/110:32:471
81640rcu_preempt3894-21ssh09:18:021
81640rcu_preempt32088-21ntp_states09:10:450
81640rcu_preempt31091-21diskmemload10:37:261
81640rcu_preempt25293-21k10sensors12:35:490
81640rcu_preempt0-21swapper/112:35:231
81640rcu_preempt0-21swapper/112:32:491
81640rcu_preempt0-21swapper/111:26:211
81640rcu_preempt0-21swapper/111:04:131
81640rcu_preempt0-21swapper/109:56:191
81640rcu_preempt0-21swapper/109:41:481
81640rcu_preempt0-21swapper/109:22:191
81640rcu_preempt0-21swapper/107:13:381
81630rcu_preempt27658-21ssh11:45:350
81630rcu_preempt0-21swapper/112:17:591
81630rcu_preempt0-21swapper/111:34:211
81630rcu_preempt0-21swapper/108:05:411
81630rcu_preempt0-21swapper/010:54:370
81630rcu_preempt0-21swapper/010:48:510
81630rcu_preempt0-21swapper/010:32:240
81620rcu_preempt30542-21rm10:01:521
81620rcu_preempt30542-21rm10:01:521
81620rcu_preempt26776-21ntp_states09:55:460
81620rcu_preempt19-21ksoftirqd/109:33:431
81620rcu_preempt10645-21sshd12:11:320
81620rcu_preempt0-21swapper/110:41:091
81620rcu_preempt0-21swapper/109:53:081
81620rcu_preempt0-21swapper/011:35:230
81620rcu_preempt0-21swapper/011:02:530
81620rcu_preempt0-21swapper/009:47:590
81610rcu_preempt7649-21ssh10:18:131
81610rcu_preempt6426-21kernelversion07:30:421
81610rcu_preempt15561-21apt-get11:25:340
81610rcu_preempt0-21swapper/112:03:191
81610rcu_preempt0-21swapper/110:48:521
81610rcu_preempt0-21swapper/110:10:441
81610rcu_preempt0-21swapper/107:50:431
81610rcu_preempt0-21swapper/007:25:460
81600rcu_preempt8842-21ssh09:25:471
81600rcu_preempt8279-21ssh12:08:151
81600rcu_preempt0-21swapper/111:56:351
81600rcu_preempt0-21swapper/109:35:471
81600rcu_preempt0-21swapper/107:35:441
81600rcu_preempt0-21swapper/011:57:450
81590rcu_preempt0-21swapper/111:20:461
81590rcu_preempt0-21swapper/109:15:211
81590rcu_preempt0-21swapper/108:30:401
81590rcu_preempt0-21swapper/107:55:391
81590rcu_preempt0-21swapper/107:40:461
81590rcu_preempt0-21swapper/009:32:360
81580rcu_preempt7988-21ssh12:07:250
81580rcu_preempt14636-21munin-run08:05:220
81580rcu_preempt0-21swapper/111:45:581
81580rcu_preempt0-21swapper/110:51:421
81580rcu_preempt0-21swapper/108:50:311
81580rcu_preempt0-21swapper/108:35:481
81580rcu_preempt0-21swapper/012:31:210
81580rcu_preempt0-21swapper/010:10:480
81580rcu_preempt0-21swapper/010:08:080
81570rcu_preempt8597-21ssh10:20:241
81570rcu_preempt24771-21sshd08:43:311
81570rcu_preempt2217-21ssh10:09:551
81570rcu_preempt11497-21diskmemload11:18:050
81570rcu_preempt11282-21ssh12:13:221
81570rcu_preempt0-21swapper/111:39:451
81570rcu_preempt0-21swapper/110:25:441
81570rcu_preempt0-21swapper/108:20:401
81570rcu_preempt0-21swapper/108:15:461
81570rcu_preempt0-21swapper/108:14:311
81570rcu_preempt0-21swapper/012:17:470
81570rcu_preempt0-21swapper/011:52:440
81570rcu_preempt0-21swapper/011:00:120
81570rcu_preempt0-21swapper/010:20:230
81560rcu_preempt15971-21ssh09:38:150
81560rcu_preempt0-21swapper/108:47:231
81560rcu_preempt0-21swapper/108:03:341
81560rcu_preempt0-21swapper/107:16:301
81560rcu_preempt0-21swapper/012:25:110
81560rcu_preempt0-21swapper/011:08:390
81560rcu_preempt0-21swapper/010:27:430
81560rcu_preempt0-21swapper/007:33:510
666995648cyclictest945-21usb-storage09:20:480
81550rcu_preempt21705-21ssh09:47:211
81550rcu_preempt21386-21diskstats08:30:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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