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2025-11-14 - 23:25
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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 100 highest latencies:
System rackcslot3.osadl.org (updated Fri Nov 14, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt29559-21/usr/sbin/munin07:05:201
81740rcu_preempt0-21swapper/007:05:210
81730rcu_preempt330-1kworker/1:1H09:43:021
81710rcu_preempt10498-1kworker/0:0H09:11:020
81700rcu_preempt28207-21df_abs10:05:101
81700rcu_preempt10498-1kworker/0:0H10:30:410
81700rcu_preempt0-21swapper/109:05:111
81690rcu_preempt0-21swapper/112:00:131
81690rcu_preempt0-21swapper/012:30:200
81670rcu_preempt22073-21if_err_can110:50:171
81670rcu_preempt0-21swapper/109:51:571
81660rcu_preempt9493-21ssh09:32:170
81660rcu_preempt6296-21munin-run11:19:581
81660rcu_preempt5695-21ps09:25:221
81660rcu_preempt3861-21df11:15:110
81660rcu_preempt27998-21diskmemload09:46:350
81660rcu_preempt27998-21diskmemload09:33:001
81660rcu_preempt23160-21sh11:48:251
81660rcu_preempt1679-21sh09:19:481
81660rcu_preempt0-21swapper/112:08:011
81660rcu_preempt0-21swapper/109:36:471
81660rcu_preempt0-21swapper/107:50:101
81650rcu_preempt5678-21fw_conntrack07:40:130
81650rcu_preempt4897-21ssh12:12:570
81650rcu_preempt0-21swapper/112:22:521
81650rcu_preempt0-21swapper/112:22:521
81650rcu_preempt0-21swapper/112:15:151
81650rcu_preempt0-21swapper/112:15:151
81650rcu_preempt0-21swapper/111:57:451
81650rcu_preempt0-21swapper/110:49:411
81650rcu_preempt0-21swapper/110:49:411
81650rcu_preempt0-21swapper/110:39:561
81650rcu_preempt0-21swapper/110:33:161
81650rcu_preempt0-21swapper/011:56:530
81650rcu_preempt0-21swapper/011:01:250
81650rcu_preempt0-21swapper/010:02:560
81640rcu_preempt31013-21ssh11:05:190
81640rcu_preempt22337-21latency08:45:171
81640rcu_preempt18524-21ssh12:36:501
81640rcu_preempt0-21swapper/111:29:161
81640rcu_preempt0-21swapper/110:19:021
81640rcu_preempt0-21swapper/010:47:350
81640rcu_preempt0-21swapper/010:47:350
81640rcu_preempt0-21swapper/009:57:200
81630rcu_preempt0-21swapper/111:30:361
81630rcu_preempt0-21swapper/010:38:260
81620rcu_preempt30719-21ssh12:00:400
81620rcu_preempt26424-21munin-run11:54:570
81620rcu_preempt23121-21ssh11:48:160
81620rcu_preempt21490-21switchtime08:40:241
81620rcu_preempt0-21swapper/111:41:121
81620rcu_preempt0-21swapper/111:20:051
81620rcu_preempt0-21swapper/008:40:180
81610rcu_preempt25431-21kworker/1:210:29:141
81610rcu_preempt25321-21sort10:00:121
81610rcu_preempt18595-21load08:30:171
81610rcu_preempt0-21swapper/109:14:301
81610rcu_preempt0-21swapper/107:40:101
81610rcu_preempt0-21swapper/011:26:490
81610rcu_preempt0-21swapper/010:51:560
81610rcu_preempt0-21swapper/010:16:370
81610rcu_preempt0-21swapper/010:12:370
81610rcu_preempt0-21swapper/009:50:150
81610rcu_preempt0-21swapper/009:27:070
81600rcu_preempt30009-21cyclictest11:10:560
81600rcu_preempt0-21swapper/111:35:241
81600rcu_preempt0-21swapper/108:50:451
81590rcu_preempt7100-21munin-run10:24:580
81590rcu_preempt5348-21sort07:39:581
81590rcu_preempt17905-21ssh10:43:061
81590rcu_preempt10390-21ssh12:22:200
81590rcu_preempt10390-21ssh12:22:200
81590rcu_preempt0-21swapper/112:30:231
81590rcu_preempt0-21swapper/012:19:220
81590rcu_preempt0-21swapper/012:19:220
81590rcu_preempt0-21swapper/011:29:570
81590rcu_preempt0-21swapper/010:41:160
81580rcu_preempt7832-21latency_hist07:49:581
81580rcu_preempt6500-21ssh10:23:091
81580rcu_preempt4649-21ssh12:12:081
81580rcu_preempt30165-21ssh10:08:110
81580rcu_preempt27998-21diskmemload11:23:470
81580rcu_preempt0-21swapper/112:29:091
81580rcu_preempt0-21swapper/111:14:201
81580rcu_preempt0-21swapper/111:00:201
81580rcu_preempt0-21swapper/110:14:191
81580rcu_preempt0-21swapper/109:56:011
81580rcu_preempt0-21swapper/108:35:221
81580rcu_preempt0-21swapper/108:05:221
81580rcu_preempt0-21swapper/009:42:020
81570rcu_preempt9130-21ssh10:27:200
81570rcu_preempt3743-21ssh09:22:050
81570rcu_preempt24201-21munin-run08:54:580
81570rcu_preempt18501-21ssh09:48:121
81570rcu_preempt0-21swapper/111:51:521
81570rcu_preempt0-21swapper/109:24:401
81570rcu_preempt0-21swapper/011:41:070
81560rcu_preempt1043-21ntpq07:20:211
81560rcu_preempt0-21swapper/111:07:391
81560rcu_preempt0-21swapper/108:55:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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