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2025-11-13 - 06:52
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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 Wed Nov 12, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/110:23:591
81700rcu_preempt0-21swapper/012:20:160
81700rcu_preempt0-21swapper/007:25:240
81690rcu_preempt16017-21sh11:27:100
81680rcu_preempt6061-21wc07:05:250
81680rcu_preempt5009-21ssh11:06:560
81680rcu_preempt0-21swapper/012:37:560
81680rcu_preempt0-21swapper/009:30:180
81670rcu_preempt6828-21sh10:10:470
81670rcu_preempt0-21swapper/009:27:430
81670rcu_preempt0-21swapper/009:24:020
81650rcu_preempt19-21ksoftirqd/110:53:541
81650rcu_preempt0-21swapper/107:05:151
81650rcu_preempt0-21swapper/012:15:190
81650rcu_preempt0-21swapper/009:15:470
81640rcu_preempt0-21swapper/011:56:170
81630rcu_preempt0-21swapper/112:28:161
81630rcu_preempt0-21swapper/110:34:251
81630rcu_preempt0-21swapper/109:44:291
81630rcu_preempt0-21swapper/012:05:180
81630rcu_preempt0-21swapper/010:02:340
81620rcu_preempt6535-21ssh09:13:231
81620rcu_preempt29474-21ssh11:50:581
81620rcu_preempt2751-21ssh12:01:371
81620rcu_preempt18188-21ssh09:34:451
81620rcu_preempt0-21swapper/109:58:111
81620rcu_preempt0-21swapper/107:38:421
81620rcu_preempt0-21swapper/007:40:180
81610rcu_preempt0-21swapper/110:57:551
81610rcu_preempt0-21swapper/109:52:321
81610rcu_preempt0-21swapper/107:15:161
81610rcu_preempt0-21swapper/107:14:171
81610rcu_preempt0-21swapper/010:08:470
81600rcu_preempt21481-21ssh11:37:241
81600rcu_preempt19269-21ssh11:34:001
81600rcu_preempt17940-21ssh12:30:140
81600rcu_preempt13687-21ssh10:25:081
81600rcu_preempt0-21swapper/112:30:231
81600rcu_preempt0-21swapper/111:10:121
81600rcu_preempt0-21swapper/109:20:251
81600rcu_preempt0-21swapper/011:42:460
81600rcu_preempt0-21swapper/007:35:200
90050590irq/17-ehci_hcd19437-21ssh10:35:130
81590rcu_preempt6825-21ssh10:10:461
81590rcu_preempt6353-21ssh12:09:121
81590rcu_preempt4779-21ssh10:08:111
81590rcu_preempt24053-21cpuspeed09:45:110
81590rcu_preempt21171-21ssh10:38:091
81590rcu_preempt15639-21ssh11:25:541
81590rcu_preempt14724-21ssh09:27:481
81590rcu_preempt1259-21ssh10:00:571
81590rcu_preempt1188-21ssh11:00:201
81590rcu_preempt0-21swapper/112:15:151
81590rcu_preempt0-21swapper/112:13:541
81590rcu_preempt0-21swapper/111:05:361
81590rcu_preempt0-21swapper/110:45:081
81590rcu_preempt0-21swapper/109:39:031
81590rcu_preempt0-21swapper/109:05:131
81580rcu_preempt20434-21ssh12:35:011
81580rcu_preempt0-21swapper/112:20:191
81580rcu_preempt0-21swapper/111:58:031
81580rcu_preempt0-21swapper/111:45:231
81580rcu_preempt0-21swapper/111:42:481
81580rcu_preempt0-21swapper/111:20:151
81580rcu_preempt0-21swapper/111:16:111
81580rcu_preempt0-21swapper/110:41:141
81580rcu_preempt0-21swapper/109:15:451
81580rcu_preempt0-21swapper/108:45:141
81580rcu_preempt0-21swapper/011:45:190
81580rcu_preempt0-21swapper/011:23:090
81580rcu_preempt0-21swapper/009:59:520
81570rcu_preempt9624-21ssh10:15:531
81570rcu_preempt27047-21ssh10:49:190
81570rcu_preempt18802-21ssh10:34:080
81570rcu_preempt12683-21ssh10:22:130
81570rcu_preempt0-21swapper/109:47:471
81570rcu_preempt0-21swapper/108:10:291
81570rcu_preempt0-21swapper/107:33:171
81570rcu_preempt0-21swapper/012:10:300
81570rcu_preempt0-21swapper/011:53:080
81570rcu_preempt0-21swapper/010:59:100
81570rcu_preempt0-21swapper/010:43:210
81570rcu_preempt0-21swapper/008:30:160
81560rcu_preempt7688-21cut07:15:140
81560rcu_preempt1741-21ssh11:00:370
81560rcu_preempt0-21swapper/108:33:111
81560rcu_preempt0-21swapper/108:20:191
81560rcu_preempt0-21swapper/108:05:191
81560rcu_preempt0-21swapper/107:48:481
81560rcu_preempt0-21swapper/107:21:531
81560rcu_preempt0-21swapper/011:34:030
81560rcu_preempt0-21swapper/011:10:220
81560rcu_preempt0-21swapper/009:51:160
81560rcu_preempt0-21swapper/009:42:290
81560rcu_preempt0-21swapper/008:47:040
81560rcu_preempt0-21swapper/007:34:060
81550rcu_preempt9964-21ssh10:16:590
81550rcu_preempt5052-21needreboot09:10:210
81550rcu_preempt0-21swapper/011:17:360
81550rcu_preempt0-21swapper/008:35:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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