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2026-04-24 - 16:37
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Fri Apr 24, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81850rcu_preempt31259-21df_abs08:06:101
81760rcu_preempt19-21ksoftirqd/112:24:361
81750rcu_preempt0-21swapper/111:14:301
81750rcu_preempt0-21swapper/110:11:101
81740rcu_preempt19-21ksoftirqd/111:09:251
81710rcu_preempt0-21swapper/011:48:430
81710rcu_preempt0-21swapper/010:01:050
81710rcu_preempt0-21swapper/007:51:140
81700rcu_preempt0-21swapper/012:29:450
81700rcu_preempt0-21swapper/011:56:360
81700rcu_preempt0-21swapper/010:15:330
81690rcu_preempt22267-21sh12:17:070
81690rcu_preempt0-21swapper/010:06:210
81680rcu_preempt10908-21diskmemload11:00:120
81680rcu_preempt0-21swapper/107:11:121
81680rcu_preempt0-21swapper/010:52:160
81670rcu_preempt0-21swapper/011:23:450
81660rcu_preempt6094-21munin-run08:35:560
81660rcu_preempt18473-21ssh11:12:220
81650rcu_preempt0-21swapper/010:27:060
81640rcu_preempt4246-21ssh09:51:070
81640rcu_preempt19459-21ssh09:21:070
81640rcu_preempt0-21swapper/011:05:380
81630rcu_preempt18641-21if_can010:16:130
81630rcu_preempt0-21swapper/011:16:080
81630rcu_preempt0-21swapper/009:10:010
81630rcu_preempt0-21swapper/008:56:050
81620rcu_preempt9039-21ssh09:58:531
81620rcu_preempt21852-21ssh11:19:371
81620rcu_preempt0-21swapper/111:54:131
81620rcu_preempt0-21swapper/011:51:330
81620rcu_preempt0-21swapper/011:06:070
81620rcu_preempt0-21swapper/009:34:580
81620rcu_preempt0-21swapper/009:25:570
81610rcu_preempt21169-21ssh10:21:070
81610rcu_preempt0-21swapper/012:36:220
81610rcu_preempt0-21swapper/012:06:160
81600rcu_preempt6399-21ssh09:54:201
81600rcu_preempt32288-21ssh09:41:480
81600rcu_preempt3169-21ssh09:48:251
81600rcu_preempt29806-21ssh09:38:060
81600rcu_preempt25407-21ssh11:26:080
81600rcu_preempt23649-21ssh11:21:271
81600rcu_preempt22509-21kworker/0:207:11:190
81600rcu_preempt21826-21ssh09:24:511
81600rcu_preempt0-21swapper/110:55:091
81600rcu_preempt0-21swapper/110:06:161
81600rcu_preempt0-21swapper/110:05:491
81600rcu_preempt0-21swapper/109:34:141
81600rcu_preempt0-21swapper/108:16:221
81600rcu_preempt0-21swapper/107:41:201
81600rcu_preempt0-21swapper/107:31:141
81600rcu_preempt0-21swapper/010:41:240
81600rcu_preempt0-21swapper/007:46:080
81590rcu_preempt30946-21ssh11:35:581
81590rcu_preempt29317-21ssh09:36:411
81590rcu_preempt29109-21ssh10:35:191
81590rcu_preempt27140-21ssh11:28:061
81590rcu_preempt23157-21ssh10:23:581
81590rcu_preempt1963-21ssh10:43:521
81590rcu_preempt19516-21cron07:20:560
81590rcu_preempt19510-21sshd07:20:221
81590rcu_preempt14089-21ssh12:02:301
81590rcu_preempt11346-21ssh11:57:531
81590rcu_preempt0-21swapper/112:41:311
81590rcu_preempt0-21swapper/112:35:171
81590rcu_preempt0-21swapper/112:26:231
81590rcu_preempt0-21swapper/112:16:131
81590rcu_preempt0-21swapper/112:13:011
81590rcu_preempt0-21swapper/110:46:221
81590rcu_preempt0-21swapper/109:26:151
81590rcu_preempt0-21swapper/108:51:201
81590rcu_preempt0-21swapper/107:47:561
81580rcu_preempt29413-21ssh11:31:241
81580rcu_preempt26173-21ssh10:29:291
81580rcu_preempt2088-21ssh12:40:341
81580rcu_preempt19705-21ssh12:12:520
81580rcu_preempt16780-21ssh12:07:191
81580rcu_preempt0-21swapper/111:03:241
81580rcu_preempt0-21swapper/110:37:321
81580rcu_preempt0-21swapper/109:17:241
81580rcu_preempt0-21swapper/109:11:151
81580rcu_preempt0-21swapper/109:09:481
81580rcu_preempt0-21swapper/012:02:110
81580rcu_preempt0-21swapper/010:37:060
81580rcu_preempt0-21swapper/010:32:050
81580rcu_preempt0-21swapper/009:59:290
81580rcu_preempt0-21swapper/008:16:180
89850570irq/17-ehci_hcd945-21usb-storage11:35:440
81570rcu_preempt19820-21ssh10:17:371
81570rcu_preempt17991-21ssh09:17:230
81570rcu_preempt0-21swapper/111:49:511
81570rcu_preempt0-21swapper/111:00:131
81570rcu_preempt0-21swapper/108:03:161
81570rcu_preempt0-21swapper/107:56:121
81570rcu_preempt0-21swapper/012:44:320
81570rcu_preempt0-21swapper/012:21:170
81570rcu_preempt0-21swapper/009:46:440
81570rcu_preempt0-21swapper/008:46:120
81570rcu_preempt0-21swapper/008:21:290
81570rcu_preempt0-21swapper/008:11:530
81570rcu_preempt0-21swapper/007:34:140
81570rcu_preempt0-21swapper/007:26:210
81560rcu_preempt0-21swapper/109:45:161
81560rcu_preempt0-21swapper/108:31:191
81560rcu_preempt0-21swapper/108:23:291
81560rcu_preempt0-21swapper/107:51:231
81560rcu_preempt0-21swapper/012:33:040
81560rcu_preempt0-21swapper/010:50:470
81560rcu_preempt0-21swapper/009:13:050
81560rcu_preempt0-21swapper/008:44:230
81560rcu_preempt0-21swapper/007:41:200
81550rcu_preempt3218-21ssh11:43:180
81550rcu_preempt3218-21ssh11:43:180
81550rcu_preempt23711-21entropy07:36:111
81550rcu_preempt0-21swapper/111:42:521
81550rcu_preempt0-21swapper/111:42:521
81550rcu_preempt0-21swapper/109:04:211
81550rcu_preempt0-21swapper/108:50:191
81550rcu_preempt0-21swapper/108:11:541
81550rcu_preempt0-21swapper/008:53:340
81540rcu_preempt32495-21ssh11:37:330
81540rcu_preempt22026-21users07:26:231
81540rcu_preempt2138-21snmpd07:25:290
81540rcu_preempt0-21swapper/108:38:341
81530rcu_preempt0-21swapper/008:36:140
147650530irq/28-eth0-rx-0-21swapper/108:41:071
81520rcu_preempt0-21swapper/108:26:131
81520rcu_preempt0-21swapper/008:06:450
18277995248cyclictest945-21usb-storage08:56:161
81510rcu_preempt0-21swapper/009:03:450
81510rcu_preempt0-21swapper/008:00:570
81510rcu_preempt0-21swapper/007:58:000
81490rcu_preempt0-21swapper/107:24:221
81490rcu_preempt0-21swapper/008:26:330
81420rcu_preempt23706-21diskstats07:36:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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