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2026-04-27 - 23:43
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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 Mon Apr 27, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt19-21ksoftirqd/111:08:031
81710rcu_preempt0-21swapper/012:16:300
81710rcu_preempt0-21swapper/009:36:170
81710rcu_preempt0-21swapper/008:06:050
81700rcu_preempt18656-21diskmemload11:09:020
81700rcu_preempt0-21swapper/008:56:210
81700rcu_preempt0-21swapper/007:56:180
81700rcu_preempt0-21swapper/007:12:450
81690rcu_preempt7826-21sh12:44:280
81690rcu_preempt6220-21ssh09:50:110
81690rcu_preempt26446-21sh12:19:491
81690rcu_preempt26076-21sh10:24:461
81690rcu_preempt21865-21sh09:21:080
81690rcu_preempt20650-21sh10:15:240
81690rcu_preempt14182-21sh10:03:160
81690rcu_preempt0-21swapper/109:52:351
81690rcu_preempt0-21swapper/109:01:321
81690rcu_preempt0-21swapper/108:01:231
81690rcu_preempt0-21swapper/012:27:240
81690rcu_preempt0-21swapper/010:42:540
81680rcu_preempt31964-21diskmemload10:35:290
81680rcu_preempt14181-21ssh11:01:180
81680rcu_preempt0-21swapper/110:56:151
81680rcu_preempt0-21swapper/109:34:381
81680rcu_preempt0-21swapper/107:11:101
81680rcu_preempt0-21swapper/011:38:330
81680rcu_preempt0-21swapper/011:38:330
81680rcu_preempt0-21swapper/010:29:100
81680rcu_preempt0-21swapper/009:55:130
81670rcu_preempt0-21swapper/111:48:551
81670rcu_preempt0-21swapper/011:16:140
81670rcu_preempt0-21swapper/009:34:540
81660rcu_preempt0-21swapper/111:39:051
81660rcu_preempt0-21swapper/111:39:051
81660rcu_preempt0-21swapper/110:20:301
81660rcu_preempt0-21swapper/110:05:031
81660rcu_preempt0-21swapper/109:27:451
81660rcu_preempt0-21swapper/012:36:120
81650rcu_preempt0-21swapper/112:01:301
81650rcu_preempt0-21swapper/111:14:081
81640rcu_preempt26987-21munin-run07:41:041
81640rcu_preempt23572-21rm12:14:321
81640rcu_preempt0-21swapper/011:41:320
81640rcu_preempt0-21swapper/007:21:240
81640rcu_preempt0-21swapper/007:21:240
81630rcu_preempt6960-21ssh10:46:471
81630rcu_preempt6360-21ssh09:50:361
81630rcu_preempt1546-21ssh10:37:451
81630rcu_preempt0-21swapper/109:23:551
81630rcu_preempt0-21swapper/107:31:391
81630rcu_preempt0-21swapper/011:11:280
81630rcu_preempt0-21swapper/008:42:170
81630rcu_preempt0-21swapper/008:21:230
81620rcu_preempt29323-21diskmemload12:25:081
81620rcu_preempt17708-21ssh10:09:521
81620rcu_preempt0-21swapper/111:42:211
81620rcu_preempt0-21swapper/111:36:051
81620rcu_preempt0-21swapper/110:53:181
81620rcu_preempt0-21swapper/110:12:511
81620rcu_preempt0-21swapper/010:49:540
81620rcu_preempt0-21swapper/009:26:260
81620rcu_preempt0-21swapper/008:51:160
81620rcu_preempt0-21swapper/008:46:270
81610rcu_preempt3477-21ssh09:45:371
81610rcu_preempt3-21ksoftirqd/010:08:100
81610rcu_preempt28989-21ssh10:30:011
81610rcu_preempt19-21ksoftirqd/112:31:151
81610rcu_preempt14868-21ssh11:01:271
81610rcu_preempt0-21swapper/111:28:471
81610rcu_preempt0-21swapper/110:45:421
81610rcu_preempt0-21swapper/109:59:341
81610rcu_preempt0-21swapper/009:01:290
81600rcu_preempt31222-21ssh10:33:171
81600rcu_preempt10284-21ssh11:51:201
81600rcu_preempt10176-21if_eth009:56:230
81600rcu_preempt0-21swapper/112:41:381
81600rcu_preempt0-21swapper/112:38:511
81600rcu_preempt0-21swapper/111:57:001
81600rcu_preempt0-21swapper/107:56:181
81600rcu_preempt0-21swapper/107:51:161
81600rcu_preempt0-21swapper/012:21:300
81600rcu_preempt0-21swapper/012:13:200
81600rcu_preempt0-21swapper/012:08:370
81600rcu_preempt0-21swapper/009:17:210
81590rcu_preempt31962-21ssh09:37:151
81590rcu_preempt31481-21ssh12:28:061
81590rcu_preempt25588-21ssh10:23:190
81590rcu_preempt24270-21ssh11:18:001
81590rcu_preempt15024-21ssh11:59:350
81590rcu_preempt0-21swapper/109:16:081
81590rcu_preempt0-21swapper/108:36:091
81590rcu_preempt0-21swapper/107:46:291
81590rcu_preempt0-21swapper/010:36:190
81590rcu_preempt0-21swapper/009:11:300
81590rcu_preempt0-21swapper/007:20:040
81580rcu_preempt776-21ssh12:31:230
81580rcu_preempt11786-21sh11:53:260
81580rcu_preempt10115-21ssh10:52:570
81580rcu_preempt0-21swapper/109:06:141
81580rcu_preempt0-21swapper/109:00:281
81580rcu_preempt0-21swapper/108:11:311
81580rcu_preempt0-21swapper/010:18:460
81580rcu_preempt0-21swapper/008:11:520
81570rcu_preempt9206-21ssh11:49:000
81570rcu_preempt26851-21rm11:22:190
81570rcu_preempt25426-21apt-get11:21:161
81570rcu_preempt13179-21ssh10:58:310
81570rcu_preempt0-21swapper/112:08:081
81570rcu_preempt0-21swapper/108:21:251
81570rcu_preempt0-21swapper/108:07:291
81560rcu_preempt7707-21if_can108:31:231
81560rcu_preempt28046-21python07:41:291
81560rcu_preempt0-21swapper/108:41:471
81560rcu_preempt0-21swapper/108:17:231
81560rcu_preempt0-21swapper/012:01:510
81560rcu_preempt0-21swapper/011:26:220
81560rcu_preempt0-21swapper/008:07:470
81560rcu_preempt0-21swapper/007:55:300
81560rcu_preempt0-21swapper/007:31:200
81560rcu_preempt0-21swapper/007:26:230
81560rcu_preempt0-21swapper/007:26:230
81550rcu_preempt0-21swapper/107:30:111
81550rcu_preempt0-21swapper/107:30:111
81550rcu_preempt0-21swapper/011:34:470
81550rcu_preempt0-21swapper/009:41:430
81550rcu_preempt0-21swapper/008:36:250
89850540irq/17-ehci_hcd945-21usb-storage07:21:211
89850540irq/17-ehci_hcd945-21usb-storage07:21:211
81540rcu_preempt0-21swapper/108:53:311
81540rcu_preempt0-21swapper/107:19:531
81540rcu_preempt0-21swapper/008:26:240
81530rcu_preempt0-21swapper/108:49:241
81530rcu_preempt0-21swapper/008:31:260
81530rcu_preempt0-21swapper/007:36:290
81520rcu_preempt0-21swapper/007:48:160
81510rcu_preempt0-21swapper/108:28:321
81510rcu_preempt0-21swapper/009:06:050
20687995047cyclictest945-21usb-storage09:11:221
81490rcu_preempt27392-21fw_forwarded_lo07:41:210
89450360irq/17-ehci_hcd3588-21latency_hist08:16:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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