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2026-06-28 - 13:16
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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 all highest latencies:
System rackcslot3.osadl.org (updated Sun Jun 28, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt3-21ksoftirqd/019:10:250
81770rcu_preempt0-21swapper/119:13:231
81740rcu_preempt0-21swapper/021:00:170
81710rcu_preempt0-21swapper/022:43:150
81710rcu_preempt0-21swapper/022:04:060
81700rcu_preempt6761-21diskmemload22:57:070
81700rcu_preempt0-21swapper/023:12:080
81700rcu_preempt0-21swapper/023:07:050
81700rcu_preempt0-21swapper/022:36:230
81690rcu_preempt25604-1kworker/0:2H23:00:340
81690rcu_preempt0-21swapper/000:05:190
81680rcu_preempt19-21ksoftirqd/122:32:181
81680rcu_preempt0-21swapper/100:08:051
81680rcu_preempt0-21swapper/023:45:580
81670rcu_preempt0-21swapper/023:56:120
81670rcu_preempt0-21swapper/023:56:120
81660rcu_preempt31007-21ssh00:00:230
81660rcu_preempt22854-21/usr/sbin/munin20:10:130
81660rcu_preempt0-21swapper/123:04:371
81660rcu_preempt0-21swapper/023:30:250
89550650irq/17-ehci_hcd16473-21rm22:31:370
81650rcu_preempt10374-21ssh00:25:260
81650rcu_preempt0-21swapper/121:29:421
81650rcu_preempt0-21swapper/119:25:161
81650rcu_preempt0-21swapper/021:32:120
81640rcu_preempt22960-21strings23:45:211
81640rcu_preempt15567-21ssh21:30:201
81640rcu_preempt0-21swapper/121:35:451
81640rcu_preempt0-21swapper/119:52:451
81630rcu_preempt6721-21ssh00:17:500
81630rcu_preempt0-21swapper/123:53:351
81630rcu_preempt0-21swapper/122:35:231
81630rcu_preempt0-21swapper/022:20:130
81630rcu_preempt0-21swapper/021:20:000
89950620irq/17-ehci_hcd29164-21/usr/sbin/munin20:35:191
81620rcu_preempt7643-21ssh23:15:361
81620rcu_preempt13681-21munin-run00:35:010
81620rcu_preempt11248-21ssh22:21:571
81620rcu_preempt10982-21ssh23:23:301
81620rcu_preempt0-21swapper/121:21:011
81620rcu_preempt0-21swapper/100:27:171
81620rcu_preempt0-21swapper/100:19:151
81620rcu_preempt0-21swapper/023:20:130
81620rcu_preempt0-21swapper/022:50:250
81620rcu_preempt0-21swapper/019:25:130
81610rcu_preempt5434-21ssh23:12:131
81610rcu_preempt24561-21rm22:47:060
81610rcu_preempt22850-21ssh21:43:541
81610rcu_preempt0-21swapper/122:56:171
81610rcu_preempt0-21swapper/122:15:131
81610rcu_preempt0-21swapper/121:59:111
81610rcu_preempt0-21swapper/121:53:341
81610rcu_preempt0-21swapper/121:05:221
81610rcu_preempt0-21swapper/120:55:141
81610rcu_preempt0-21swapper/100:43:051
81610rcu_preempt0-21swapper/100:01:031
81610rcu_preempt0-21swapper/022:11:060
81600rcu_preempt9192-21ssh00:24:191
81600rcu_preempt3813-21ssh22:08:531
81600rcu_preempt0-21swapper/123:38:041
81600rcu_preempt0-21swapper/122:50:101
81600rcu_preempt0-21swapper/120:50:211
81600rcu_preempt0-21swapper/119:55:251
81600rcu_preempt0-21swapper/119:15:181
81600rcu_preempt0-21swapper/021:10:120
81600rcu_preempt0-21swapper/000:43:200
81600rcu_preempt0-21swapper/000:35:200
89950590irq/17-ehci_hcd945-21usb-storage21:43:170
81590rcu_preempt25351-21ssh21:48:300
81590rcu_preempt2360-21ssh23:05:441
81590rcu_preempt16176-21ssh23:32:521
81590rcu_preempt15327-21ssh00:36:251
81590rcu_preempt13699-21ssh22:25:560
81590rcu_preempt13317-21ssh23:27:171
81590rcu_preempt0-21swapper/122:13:511
81590rcu_preempt0-21swapper/121:17:231
81590rcu_preempt0-21swapper/121:14:271
81590rcu_preempt0-21swapper/120:30:201
81590rcu_preempt0-21swapper/120:20:131
81590rcu_preempt0-21swapper/020:25:110
81580rcu_preempt4521-21ssh00:12:101
81580rcu_preempt22211-21ssh22:42:551
81580rcu_preempt21288-21ssh23:42:171
81580rcu_preempt13714-21ssh23:28:380
81580rcu_preempt0-21swapper/123:56:461
81580rcu_preempt0-21swapper/123:56:461
81580rcu_preempt0-21swapper/122:45:171
81580rcu_preempt0-21swapper/122:00:171
81580rcu_preempt0-21swapper/120:40:171
81580rcu_preempt0-21swapper/119:40:111
81580rcu_preempt0-21swapper/100:30:181
81580rcu_preempt0-21swapper/023:43:470
81580rcu_preempt0-21swapper/023:36:240
81580rcu_preempt0-21swapper/022:16:200
81580rcu_preempt0-21swapper/022:07:330
81580rcu_preempt0-21swapper/021:27:070
81570rcu_preempt8786-21ssh21:17:310
81570rcu_preempt19266-21ssh21:35:480
81570rcu_preempt14634-21ssh22:29:181
81570rcu_preempt0-21swapper/121:45:391
81570rcu_preempt0-21swapper/120:45:171
81570rcu_preempt0-21swapper/120:10:221
81570rcu_preempt0-21swapper/119:35:231
81570rcu_preempt0-21swapper/119:21:431
81570rcu_preempt0-21swapper/021:57:120
81570rcu_preempt0-21swapper/020:55:110
81560rcu_preempt8278-21ssh23:17:590
81560rcu_preempt7312-21ssh00:20:110
81560rcu_preempt27906-21/usr/sbin/munin20:30:180
81560rcu_preempt0-21swapper/120:26:131
81560rcu_preempt0-21swapper/120:17:551
81560rcu_preempt0-21swapper/000:11:200
8781995540cyclictest181ktimersoftd/120:05:261
81550rcu_preempt20593-21fw_forwarded_lo20:00:171
81550rcu_preempt0-21swapper/121:00:471
81550rcu_preempt0-21swapper/021:51:560
81550rcu_preempt0-21swapper/019:49:350
81550rcu_preempt0-21swapper/019:42:230
81550rcu_preempt0-21swapper/019:35:290
81550rcu_preempt0-21swapper/019:33:110
81540rcu_preempt19636-21memory19:55:190
81540rcu_preempt17069-21memory19:45:211
81540rcu_preempt0-21swapper/020:35:260
81540rcu_preempt0-21swapper/020:05:190
81530rcu_preempt0-21swapper/023:51:030
81530rcu_preempt0-21swapper/020:20:340
81530rcu_preempt0-21swapper/020:17:540
81530rcu_preempt0-21swapper/020:01:200
81530rcu_preempt0-21swapper/019:20:030
81530rcu_preempt0-21swapper/019:16:070
81520rcu_preempt0-21swapper/020:54:150
81520rcu_preempt0-21swapper/020:45:430
81520rcu_preempt0-21swapper/019:54:310
8780995047cyclictest945-21usb-storage20:40:160
81490rcu_preempt13788-21users19:30:271
81490rcu_preempt0-21swapper/021:07:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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