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2025-12-28 - 04:10
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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 Sun Dec 28, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt7569-21ssh22:29:260
81760rcu_preempt26735-21if_err_eth019:05:580
81740rcu_preempt0-21swapper/122:31:471
81720rcu_preempt3727-21ssh22:21:250
81690rcu_preempt0-21swapper/019:35:530
81680rcu_preempt28816-21ssh21:15:500
81680rcu_preempt13004-21sh22:38:220
81680rcu_preempt0-21swapper/022:50:590
81680rcu_preempt0-21swapper/022:03:330
81670rcu_preempt25496-21diskmemload00:13:530
81670rcu_preempt0-21swapper/022:13:330
81660rcu_preempt439-21timerandwakeup22:16:030
81660rcu_preempt17369-21sort22:45:560
81660rcu_preempt0-21swapper/121:47:481
81650rcu_preempt0-21swapper/100:10:031
81640rcu_preempt0-21swapper/123:35:561
81640rcu_preempt0-21swapper/123:10:561
81640rcu_preempt0-21swapper/122:23:191
81640rcu_preempt0-21swapper/100:12:481
81640rcu_preempt0-21swapper/021:48:260
81640rcu_preempt0-21swapper/020:10:500
81640rcu_preempt0-21swapper/000:33:380
89850630irq/17-ehci_hcd29842-21ssh23:06:510
81630rcu_preempt0-21swapper/121:29:511
81630rcu_preempt0-21swapper/121:12:131
81630rcu_preempt0-21swapper/019:41:030
81620rcu_preempt0-21swapper/122:43:041
89450610irq/17-ehci_hcd0-21swapper/100:22:441
81610rcu_preempt4368-21ssh00:15:471
81610rcu_preempt29684-21ssh21:16:011
81610rcu_preempt12456-21rm23:32:531
81610rcu_preempt0-21swapper/122:13:161
81610rcu_preempt0-21swapper/120:59:051
81610rcu_preempt0-21swapper/021:39:370
81610rcu_preempt0-21swapper/020:50:530
81610rcu_preempt0-21swapper/019:21:000
81600rcu_preempt25651-21ssh22:05:091
81600rcu_preempt21037-21ssh23:47:271
81600rcu_preempt18220-21ssh22:47:011
81600rcu_preempt15604-21ssh00:35:291
81600rcu_preempt12858-21ssh22:37:551
81600rcu_preempt0-21swapper/121:51:171
81600rcu_preempt0-21swapper/100:00:471
81600rcu_preempt0-21swapper/023:48:400
81600rcu_preempt0-21swapper/023:29:410
81600rcu_preempt0-21swapper/020:22:370
81590rcu_preempt25520-21ssh23:00:451
81590rcu_preempt24820-21ssh22:59:041
81590rcu_preempt11545-21ssh00:26:491
81590rcu_preempt0-21swapper/123:26:011
81590rcu_preempt0-21swapper/123:17:271
81590rcu_preempt0-21swapper/122:09:051
81590rcu_preempt0-21swapper/122:00:251
81590rcu_preempt0-21swapper/119:08:211
81590rcu_preempt0-21swapper/000:08:420
89850580irq/17-ehci_hcd17459-21ssh00:37:291
81580rcu_preempt9016-21ssh00:23:050
81580rcu_preempt21348-21ssh22:52:271
81580rcu_preempt0-21swapper/122:27:301
81580rcu_preempt0-21swapper/121:20:581
81580rcu_preempt0-21swapper/120:31:021
81580rcu_preempt0-21swapper/120:25:571
81580rcu_preempt0-21swapper/022:06:420
81580rcu_preempt0-21swapper/021:13:500
81580rcu_preempt0-21swapper/020:46:020
81580rcu_preempt0-21swapper/020:38:060
81570rcu_preempt29822-21ssh23:06:471
81570rcu_preempt28042-21ssh23:05:110
81570rcu_preempt27372-21ssh23:58:501
81570rcu_preempt24697-21ssh23:54:351
81570rcu_preempt15175-21ssh23:37:230
81570rcu_preempt0-21swapper/122:16:051
81570rcu_preempt0-21swapper/121:35:501
81570rcu_preempt0-21swapper/121:32:381
81570rcu_preempt0-21swapper/121:05:571
81570rcu_preempt0-21swapper/120:50:531
81570rcu_preempt0-21swapper/120:46:191
81570rcu_preempt0-21swapper/120:35:571
81570rcu_preempt0-21swapper/120:11:001
81570rcu_preempt0-21swapper/119:35:461
81570rcu_preempt0-21swapper/119:35:321
81570rcu_preempt0-21swapper/119:25:591
81570rcu_preempt0-21swapper/023:55:560
81570rcu_preempt0-21swapper/023:24:180
81570rcu_preempt0-21swapper/022:58:230
81560rcu_preempt5003-21df_inode23:20:521
81560rcu_preempt3946-21ssh21:27:260
81560rcu_preempt32281-21ssh23:11:000
81560rcu_preempt30767-21ssh00:05:220
81560rcu_preempt13600-21needreboot20:20:591
81560rcu_preempt0-21swapper/121:40:561
81560rcu_preempt0-21swapper/120:04:361
81560rcu_preempt0-21swapper/022:32:370
81560rcu_preempt0-21swapper/021:54:120
81560rcu_preempt0-21swapper/020:05:560
81560rcu_preempt0-21swapper/000:28:080
81550rcu_preempt22940-21sshd20:59:060
81550rcu_preempt17891-21ssh00:38:500
81550rcu_preempt13201-21ssh23:35:070
81550rcu_preempt0-21swapper/119:52:561
81550rcu_preempt0-21swapper/119:14:061
81550rcu_preempt0-21swapper/021:44:400
81550rcu_preempt0-21swapper/019:53:030
81550rcu_preempt0-21swapper/000:15:450
81540rcu_preempt7741-21ssh21:34:310
81540rcu_preempt741-21ssh21:21:330
81540rcu_preempt21999-21ssh21:58:160
81540rcu_preempt18197-21ssh23:42:341
81540rcu_preempt0-21swapper/121:01:591
81540rcu_preempt0-21swapper/120:16:571
81540rcu_preempt0-21swapper/119:46:301
81540rcu_preempt0-21swapper/023:51:470
81540rcu_preempt0-21swapper/021:05:170
81540rcu_preempt0-21swapper/019:55:560
81530rcu_preempt15156-21ssh22:41:140
81530rcu_preempt0-21swapper/119:17:321
81530rcu_preempt0-21swapper/023:41:260
81530rcu_preempt0-21swapper/020:44:140
81520rcu_preempt9414-21diskstats20:05:561
81520rcu_preempt30761-21memory19:20:581
81520rcu_preempt18742-21ntp_states20:41:001
81520rcu_preempt0-21swapper/023:17:360
81520rcu_preempt0-21swapper/020:25:380
81520rcu_preempt0-21swapper/019:25:540
81510rcu_preempt0-21swapper/020:19:110
81510rcu_preempt0-21swapper/020:01:030
81510rcu_preempt0-21swapper/019:33:430
81510rcu_preempt0-21swapper/019:11:060
81500rcu_preempt0-21swapper/020:32:030
81490rcu_preempt4389-21fw_forwarded_lo19:45:560
81480rcu_preempt0-21swapper/021:08:260
81440rcu_preempt29114-21df_abs19:15:530
81400rcu_preempt3809-21/usr/sbin/munin19:41:031
27521993836cyclictest945-21usb-storage19:55:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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