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2026-08-15 - 00:28
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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 Fri Aug 14, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81970rcu_preempt19-21ksoftirqd/111:03:211
81750rcu_preempt0-21swapper/109:33:001
81720rcu_preempt0-21swapper/112:15:561
81720rcu_preempt0-21swapper/111:19:191
81710rcu_preempt0-21swapper/011:09:220
81710rcu_preempt0-21swapper/007:43:580
81700rcu_preempt27607-21sh09:50:480
81700rcu_preempt0-21swapper/012:09:020
81700rcu_preempt0-21swapper/011:46:460
81700rcu_preempt0-21swapper/010:59:480
81700rcu_preempt0-21swapper/010:17:430
81700rcu_preempt0-21swapper/009:42:410
81700rcu_preempt0-21swapper/009:35:280
81690rcu_preempt0-21swapper/107:14:251
81680rcu_preempt0-21swapper/012:24:360
81680rcu_preempt0-21swapper/010:39:350
81670rcu_preempt0-21swapper/010:10:310
89950660irq/17-ehci_hcd945-21usb-storage08:13:271
81660rcu_preempt17204-21df_inode12:39:130
81660rcu_preempt1599migration/010:55:490
81650rcu_preempt26199-21ssh10:49:511
81650rcu_preempt14584-21cat10:29:130
81650rcu_preempt10049-21ssh09:19:100
81650rcu_preempt0-21swapper/111:09:221
81650rcu_preempt0-21swapper/110:22:091
81640rcu_preempt0-21swapper/112:01:021
81640rcu_preempt0-21swapper/108:14:131
81640rcu_preempt0-21swapper/010:46:450
81640rcu_preempt0-21swapper/010:00:320
81640rcu_preempt0-21swapper/009:44:200
81630rcu_preempt22172-21ssh11:45:021
81630rcu_preempt1245-21/usr/sbin/munin12:08:590
81630rcu_preempt12025-21ssh09:21:581
81630rcu_preempt0-21swapper/110:55:051
81630rcu_preempt0-21swapper/107:33:431
81630rcu_preempt0-21swapper/012:29:190
81630rcu_preempt0-21swapper/008:14:110
81630rcu_preempt0-21swapper/007:37:050
81620rcu_preempt12802-21ssh11:28:301
81620rcu_preempt0-21swapper/109:24:271
81620rcu_preempt0-21swapper/012:35:100
81620rcu_preempt0-21swapper/011:14:230
81620rcu_preempt0-21swapper/009:25:290
81620rcu_preempt0-21swapper/008:39:180
81620rcu_preempt0-21swapper/008:19:250
81620rcu_preempt0-21swapper/008:09:230
81610rcu_preempt7734-21ssh12:19:311
81610rcu_preempt3550-21ssh12:12:321
81610rcu_preempt28477-21ssh09:53:551
81610rcu_preempt24108-21needreboot11:49:200
81610rcu_preempt1501-21apache210:34:160
81610rcu_preempt0-21swapper/112:40:341
81610rcu_preempt0-21swapper/112:30:171
81610rcu_preempt0-21swapper/111:54:381
81610rcu_preempt0-21swapper/111:42:391
81610rcu_preempt0-21swapper/111:42:391
81610rcu_preempt0-21swapper/110:27:221
81610rcu_preempt0-21swapper/110:04:171
81610rcu_preempt0-21swapper/109:59:511
81610rcu_preempt0-21swapper/109:54:501
81610rcu_preempt0-21swapper/109:09:141
81610rcu_preempt0-21swapper/107:59:141
81610rcu_preempt0-21swapper/011:37:240
81600rcu_preempt7822-21smartctl10:14:241
81600rcu_preempt5865-21ssh10:11:191
81600rcu_preempt5645-21kworker/0:107:14:220
81600rcu_preempt0-21swapper/112:46:161
81600rcu_preempt0-21swapper/112:24:141
81600rcu_preempt0-21swapper/111:50:071
81600rcu_preempt0-21swapper/111:37:271
81600rcu_preempt0-21swapper/110:43:281
81600rcu_preempt0-21swapper/108:49:211
81600rcu_preempt0-21swapper/107:49:121
81600rcu_preempt0-21swapper/011:55:480
81600rcu_preempt0-21swapper/011:43:040
81600rcu_preempt0-21swapper/011:43:040
81590rcu_preempt19006-21ssh10:37:061
81590rcu_preempt15879-21ssh10:30:091
81590rcu_preempt15713-21ssh12:35:091
81590rcu_preempt14840-21ssh11:31:260
81590rcu_preempt13982-21ssh10:27:570
81590rcu_preempt0-21swapper/112:08:071
81590rcu_preempt0-21swapper/111:06:091
81590rcu_preempt0-21swapper/110:46:251
81590rcu_preempt0-21swapper/108:44:261
81590rcu_preempt0-21swapper/107:19:111
11876995945cyclictest945-21usb-storage09:47:191
81580rcu_preempt6382-21munin-run12:18:590
81580rcu_preempt14569-21ssh11:30:271
81580rcu_preempt11575-21ssh10:23:350
81580rcu_preempt0-21swapper/109:39:461
81580rcu_preempt0-21swapper/108:38:391
81580rcu_preempt0-21swapper/107:25:431
81580rcu_preempt0-21swapper/012:21:230
81580rcu_preempt0-21swapper/012:00:180
81580rcu_preempt0-21swapper/011:27:310
81580rcu_preempt0-21swapper/011:23:000
81580rcu_preempt0-21swapper/009:56:450
81580rcu_preempt0-21swapper/008:54:160
81570rcu_preempt20154-21ssh09:37:331
81570rcu_preempt0-21swapper/108:33:311
81570rcu_preempt0-21swapper/108:24:041
81570rcu_preempt0-21swapper/107:45:301
81570rcu_preempt0-21swapper/107:40:311
81570rcu_preempt0-21swapper/107:36:521
81570rcu_preempt0-21swapper/009:32:420
81570rcu_preempt0-21swapper/008:33:310
81560rcu_preempt0-21swapper/111:18:341
81560rcu_preempt0-21swapper/109:14:161
81560rcu_preempt0-21swapper/109:02:301
81560rcu_preempt0-21swapper/108:39:131
81560rcu_preempt0-21swapper/108:06:511
81560rcu_preempt0-21swapper/008:34:150
81550rcu_preempt0-21swapper/109:05:331
81550rcu_preempt0-21swapper/107:55:341
81550rcu_preempt0-21swapper/012:46:170
81550rcu_preempt0-21swapper/010:52:190
81550rcu_preempt0-21swapper/010:04:250
81550rcu_preempt0-21swapper/008:44:210
81550rcu_preempt0-21swapper/008:24:260
146250550irq/28-eth0-rx-0-21swapper/008:05:570
81540rcu_preempt0-21swapper/009:17:300
81540rcu_preempt0-21swapper/009:12:300
81540rcu_preempt0-21swapper/007:44:080
146250540irq/28-eth0-rx-41ktimersoftd/011:07:150
81530rcu_preempt0-21swapper/008:00:310
81530rcu_preempt0-21swapper/007:31:290
81520rcu_preempt19863-21fw_forwarded_lo07:49:130
81520rcu_preempt0-21swapper/007:54:500
81510rcu_preempt0-21swapper/009:06:560
81490rcu_preempt0-21swapper/009:03:470
81490rcu_preempt0-21swapper/007:24:500
11876994945cyclictest945-21usb-storage08:57:431
81480rcu_preempt27726-21memory08:19:191
81470rcu_preempt0-21swapper/008:50:510
11875993910cyclictest5645-21kworker/0:107:20:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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