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2026-06-18 - 15:39
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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 highest latencies:
System rackcslot3.osadl.org (updated Thu Jun 18, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81970rcu_preempt0-21swapper/109:41:071
81800rcu_preempt8232-21sh11:29:051
81780rcu_preempt0-21swapper/111:04:331
81770rcu_preempt10540-21if_eth107:44:311
81740rcu_preempt5401-21ssh12:24:240
81740rcu_preempt0-21swapper/111:32:481
81740rcu_preempt0-21swapper/111:11:531
81710rcu_preempt20208-21ssh10:49:360
81710rcu_preempt0-21swapper/107:12:001
81700rcu_preempt4945-21sh09:20:380
81700rcu_preempt0-21swapper/012:41:020
81700rcu_preempt0-21swapper/011:54:240
81700rcu_preempt0-21swapper/011:54:240
81700rcu_preempt0-21swapper/011:04:130
81700rcu_preempt0-21swapper/009:49:340
81690rcu_preempt0-21swapper/111:23:011
81690rcu_preempt0-21swapper/011:43:090
89550680irq/17-ehci_hcd0-21swapper/011:37:050
81680rcu_preempt11154-21cpuspeed_turbos11:34:271
81670rcu_preempt0-21swapper/010:14:340
81670rcu_preempt0-21swapper/008:54:070
81650rcu_preempt32723-21diskmemload10:38:520
81650rcu_preempt10183-21sh11:31:440
81650rcu_preempt0-21swapper/010:09:020
146650650irq/31-eth0-tx-41ktimersoftd/010:00:560
81640rcu_preempt0-21swapper/010:55:210
81640rcu_preempt0-21swapper/010:39:300
81630rcu_preempt546-21ssh12:14:340
81630rcu_preempt27639-1kworker/0:1H11:29:120
81630rcu_preempt0-21swapper/010:22:220
81630rcu_preempt0-21swapper/007:39:260
81620rcu_preempt17806-21df_abs08:14:260
81620rcu_preempt0-21swapper/012:29:410
81620rcu_preempt0-21swapper/011:06:400
146550620irq/30-eth0-tx-0-21swapper/011:53:300
89950610irq/17-ehci_hcd7331-21ssh10:24:430
81610rcu_preempt3-21ksoftirqd/007:10:500
81610rcu_preempt0-21swapper/011:44:360
81610rcu_preempt0-21swapper/009:46:320
81610rcu_preempt0-21swapper/009:15:170
81610rcu_preempt0-21swapper/007:14:230
81600rcu_preempt32679-21munin-run11:14:130
81600rcu_preempt0-21swapper/011:18:010
2375996048cyclictest945-21usb-storage12:29:151
81590rcu_preempt9320-21ssh10:29:320
81590rcu_preempt5956-21k10sensors07:24:360
81590rcu_preempt0-21swapper/009:42:090
81590rcu_preempt0-21swapper/007:59:280
81580rcu_preempt8499-21ssh09:28:300
81580rcu_preempt4428-21ssh11:20:260
81580rcu_preempt15592-21ssh11:42:131
81580rcu_preempt0-21swapper/110:38:301
81580rcu_preempt0-21swapper/110:14:181
81580rcu_preempt0-21swapper/010:09:330
89950570irq/17-ehci_hcd945-21usb-storage07:29:281
89950570irq/17-ehci_hcd0-21swapper/009:57:450
81570rcu_preempt5746-21ssh09:23:091
81570rcu_preempt25992-21ssh12:00:540
81570rcu_preempt23765-21sshd09:55:181
81570rcu_preempt21232-21ssh09:50:511
81570rcu_preempt18251-21ssh10:45:351
81570rcu_preempt18251-21ssh10:45:351
81570rcu_preempt1436-21ssh12:15:231
81570rcu_preempt12017-21ssh12:35:061
81570rcu_preempt0-21swapper/111:55:361
81570rcu_preempt0-21swapper/111:55:361
81570rcu_preempt0-21swapper/111:52:141
81570rcu_preempt0-21swapper/110:59:581
81570rcu_preempt0-21swapper/110:24:071
81570rcu_preempt0-21swapper/110:05:291
81570rcu_preempt0-21swapper/109:35:241
81570rcu_preempt0-21swapper/109:14:161
81570rcu_preempt0-21swapper/012:36:560
81570rcu_preempt0-21swapper/009:37:230
81570rcu_preempt0-21swapper/009:31:520
81570rcu_preempt0-21swapper/008:09:360
2375995748cyclictest945-21usb-storage11:47:281
2375995747cyclictest945-21usb-storage12:22:111
81560rcu_preempt30991-21ssh12:09:551
81560rcu_preempt29471-21ssh12:08:541
81560rcu_preempt11266-21ssh09:33:531
81560rcu_preempt0-21swapper/112:41:551
81560rcu_preempt0-21swapper/110:49:561
81560rcu_preempt0-21swapper/110:44:101
81560rcu_preempt0-21swapper/110:32:491
81560rcu_preempt0-21swapper/109:59:171
81560rcu_preempt0-21swapper/109:25:061
81560rcu_preempt0-21swapper/108:59:471
81560rcu_preempt0-21swapper/108:59:061
81560rcu_preempt0-21swapper/108:32:361
81560rcu_preempt0-21swapper/108:25:281
81560rcu_preempt0-21swapper/108:22:141
81560rcu_preempt0-21swapper/107:54:341
81560rcu_preempt0-21swapper/012:19:560
81560rcu_preempt0-21swapper/010:45:430
81560rcu_preempt0-21swapper/010:45:430
81560rcu_preempt0-21swapper/008:39:360
81560rcu_preempt0-21swapper/007:34:260
2375995646cyclictest945-21usb-storage12:02:211
81550rcu_preempt0-21swapper/111:14:351
81550rcu_preempt0-21swapper/110:12:581
81550rcu_preempt0-21swapper/108:46:441
81550rcu_preempt0-21swapper/108:41:581
81550rcu_preempt0-21swapper/108:06:081
81550rcu_preempt0-21swapper/107:36:321
81550rcu_preempt0-21swapper/107:29:011
81550rcu_preempt0-21swapper/012:11:100
81550rcu_preempt0-21swapper/012:04:380
81550rcu_preempt0-21swapper/009:10:130
81550rcu_preempt0-21swapper/007:29:270
81540rcu_preempt6778-21ssh12:25:331
81540rcu_preempt23883-21munin-run08:39:120
81540rcu_preempt0-21swapper/109:10:241
81540rcu_preempt0-21swapper/108:38:451
81540rcu_preempt0-21swapper/108:01:441
81540rcu_preempt0-21swapper/008:54:370
81530rcu_preempt23348-21ssh10:54:511
81530rcu_preempt0-21swapper/008:25:410
146550530irq/30-eth0-tx-41ktimersoftd/007:52:080
81520rcu_preempt0-21swapper/009:07:280
81520rcu_preempt0-21swapper/008:29:170
81520rcu_preempt0-21swapper/007:56:010
81520rcu_preempt0-21swapper/007:48:450
2375995249cyclictest945-21usb-storage08:13:351
2375995249cyclictest945-21usb-storage07:19:261
2375995248cyclictest945-21usb-storage10:25:411
2375995248cyclictest945-21usb-storage09:44:411
2375995248cyclictest945-21usb-storage07:15:181
89950510irq/17-ehci_hcd945-21usb-storage07:49:351
2375995148cyclictest945-21usb-storage09:04:181
2375995148cyclictest945-21usb-storage08:49:351
2375995148cyclictest945-21usb-storage07:44:011
2375995047cyclictest945-21usb-storage08:18:231
81490rcu_preempt0-21swapper/009:00:140
81490rcu_preempt0-21swapper/007:19:370
81480rcu_preempt19184-21fw_conntrack08:19:280
237499419cyclictest26395-21kworker/0:108:48:070
237499397cyclictest29683-21kworker/0:008:04:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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