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2026-05-22 - 01:06
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Thu May 21, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81960rcu_preempt31418-21ssh09:27:021
81790rcu_preempt0-21swapper/107:11:271
81740rcu_preempt25873-21sh10:15:080
81740rcu_preempt19-21ksoftirqd/110:22:251
81720rcu_preempt0-21swapper/009:17:180
81700rcu_preempt0-21swapper/012:15:000
81680rcu_preempt0-21swapper/010:44:420
81680rcu_preempt0-21swapper/010:04:350
81680rcu_preempt0-21swapper/009:54:370
81670rcu_preempt11491-21if_can111:47:110
81670rcu_preempt0-21swapper/110:19:511
81670rcu_preempt0-21swapper/109:39:291
81670rcu_preempt0-21swapper/108:17:161
81660rcu_preempt0-21swapper/111:50:421
81660rcu_preempt0-21swapper/111:46:211
81660rcu_preempt0-21swapper/107:33:441
81660rcu_preempt0-21swapper/010:19:000
81650rcu_preempt13656-21ssh10:52:060
81650rcu_preempt0-21swapper/110:04:021
81650rcu_preempt0-21swapper/011:22:480
81650rcu_preempt0-21swapper/009:40:150
81640rcu_preempt4916-21ssh11:35:001
81640rcu_preempt0-21swapper/111:24:231
81640rcu_preempt0-21swapper/009:22:150
81640rcu_preempt0-21swapper/007:25:240
81630rcu_preempt6950-21ssh10:39:091
81630rcu_preempt2398-21ssh12:29:291
81630rcu_preempt2348-21ssh11:30:201
81630rcu_preempt0-21swapper/109:22:241
81630rcu_preempt0-21swapper/008:35:560
81630rcu_preempt0-21swapper/007:12:150
81620rcu_preempt25693-21ssh10:14:301
81620rcu_preempt0-21swapper/109:42:051
81620rcu_preempt0-21swapper/012:11:030
81620rcu_preempt0-21swapper/009:02:030
89950610irq/17-ehci_hcd945-21usb-storage11:20:240
81610rcu_preempt7263-21ssh12:37:440
81610rcu_preempt2969-21ssh11:32:010
81610rcu_preempt29636-21ssh11:21:491
81610rcu_preempt21055-21ssh11:05:171
81610rcu_preempt1292-21ssh10:28:501
81610rcu_preempt11799-21if_can008:27:080
81610rcu_preempt0-21swapper/111:12:361
81610rcu_preempt0-21swapper/111:01:141
81610rcu_preempt0-21swapper/110:52:061
81610rcu_preempt0-21swapper/109:07:021
81610rcu_preempt0-21swapper/108:33:491
81610rcu_preempt0-21swapper/107:42:011
81610rcu_preempt0-21swapper/012:03:540
81610rcu_preempt0-21swapper/009:49:190
81610rcu_preempt0-21swapper/008:22:130
81600rcu_preempt29773-21ssh12:21:071
81600rcu_preempt26624-21ssh12:14:311
81600rcu_preempt23954-21ssh12:09:491
81600rcu_preempt22675-21ssh10:08:091
81600rcu_preempt17532-21ssh09:59:321
81600rcu_preempt16330-21ssh11:56:351
81600rcu_preempt12659-21ssh10:49:541
81600rcu_preempt0-21swapper/110:44:151
81600rcu_preempt0-21swapper/109:02:081
81600rcu_preempt0-21swapper/011:52:040
81600rcu_preempt0-21swapper/007:32:030
81590rcu_preempt21161-21ssh12:04:311
81590rcu_preempt16272-21ssh10:57:000
81590rcu_preempt0-21swapper/112:39:321
81590rcu_preempt0-21swapper/109:47:011
81590rcu_preempt0-21swapper/109:32:121
81590rcu_preempt0-21swapper/109:17:081
81590rcu_preempt0-21swapper/109:15:011
81590rcu_preempt0-21swapper/108:57:041
81590rcu_preempt0-21swapper/107:36:591
81590rcu_preempt0-21swapper/010:31:510
81590rcu_preempt0-21swapper/010:22:080
81590rcu_preempt0-21swapper/010:00:090
81590rcu_preempt0-21swapper/009:32:410
81590rcu_preempt0-21swapper/009:12:150
81590rcu_preempt0-21swapper/007:52:030
81580rcu_preempt9799-21ssh11:42:570
81580rcu_preempt5725-21ssh12:36:380
81580rcu_preempt3853-21ssh10:33:081
81580rcu_preempt31780-21ssh12:23:401
81580rcu_preempt23442-21kworker/0:007:07:100
81580rcu_preempt23374-21ssh11:08:480
81580rcu_preempt20207-21ssh11:02:370
81580rcu_preempt13000-21ssh10:50:540
81580rcu_preempt0-21swapper/111:56:511
81580rcu_preempt0-21swapper/111:37:421
81580rcu_preempt0-21swapper/111:08:231
81580rcu_preempt0-21swapper/108:47:161
81580rcu_preempt0-21swapper/108:42:101
81580rcu_preempt0-21swapper/108:30:531
81580rcu_preempt0-21swapper/011:58:300
81580rcu_preempt0-21swapper/011:41:270
81580rcu_preempt0-21swapper/011:13:450
81580rcu_preempt0-21swapper/008:57:150
81580rcu_preempt0-21swapper/008:07:190
81570rcu_preempt6667-21ssh10:38:100
81570rcu_preempt3571-21diskstats12:32:081
81570rcu_preempt32346-21munin-run07:41:510
81570rcu_preempt2615-21ssh12:30:140
81570rcu_preempt23216-21ssh10:09:590
81570rcu_preempt0-21swapper/109:51:531
81570rcu_preempt0-21swapper/108:23:351
81570rcu_preempt0-21swapper/108:15:591
81570rcu_preempt0-21swapper/009:41:590
81570rcu_preempt0-21swapper/009:31:070
81560rcu_preempt22770-21diskmemload12:22:060
81560rcu_preempt17992-21df08:52:051
81560rcu_preempt0-21swapper/107:18:311
81560rcu_preempt0-21swapper/010:33:000
81560rcu_preempt0-21swapper/009:07:140
81560rcu_preempt0-21swapper/007:18:560
24779995645cyclictest945-21usb-storage07:47:091
81550rcu_preempt4294-21cat07:57:090
81550rcu_preempt0-21swapper/108:03:271
81550rcu_preempt0-21swapper/107:58:031
81550rcu_preempt0-21swapper/107:31:461
81550rcu_preempt0-21swapper/107:13:431
81550rcu_preempt0-21swapper/008:48:570
81550rcu_preempt0-21swapper/008:44:590
81550rcu_preempt0-21swapper/008:03:580
81550rcu_preempt0-21swapper/007:44:590
81540rcu_preempt29154-21ssh12:19:010
81540rcu_preempt0-21swapper/008:38:230
81530rcu_preempt2697-21ssh11:31:360
81530rcu_preempt14271-21fw_conntrack08:37:071
81530rcu_preempt0-21swapper/007:48:530
146250530irq/28-eth0-rx-41ktimersoftd/008:12:210
81520rcu_preempt6432-21/usr/sbin/munin08:07:171
81520rcu_preempt0-21swapper/008:17:350
81510rcu_preempt3509-21mailstats07:52:151
24779994946cyclictest945-21usb-storage07:25:241
146650480irq/31-eth0-tx-29790-21users07:27:170
24778994542cyclictest945-21usb-storage08:55:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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