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2026-05-04 - 00:57
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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 Sun May 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81740rcu_preempt0-21swapper/110:42:411
81740rcu_preempt0-21swapper/110:07:251
81730rcu_preempt18809-21rm10:11:060
81730rcu_preempt0-21swapper/109:50:301
81730rcu_preempt0-21swapper/007:09:160
81720rcu_preempt30876-21sed08:05:331
81700rcu_preempt6111-21ssh11:42:150
81700rcu_preempt5849-21ssh12:38:440
81700rcu_preempt32072-21sh12:27:421
81700rcu_preempt14677-21diskmemload10:14:051
81700rcu_preempt12420-21ssh11:53:530
81690rcu_preempt9542-21ssh10:51:400
81690rcu_preempt29888-21if_eth008:00:370
81690rcu_preempt23730-21ssh12:13:270
81680rcu_preempt3231-21ssh11:37:210
81680rcu_preempt3231-21ssh11:37:210
81680rcu_preempt24983-21sh11:19:580
81680rcu_preempt24584-21ssh10:21:050
81680rcu_preempt2192-21snmpd08:54:250
81680rcu_preempt2192-21snmpd08:54:250
81680rcu_preempt2192-21snmpd07:29:060
81680rcu_preempt21429-21ssh11:12:510
81680rcu_preempt19265-21ssh11:10:000
81680rcu_preempt0-21swapper/010:46:320
81680rcu_preempt0-21swapper/010:36:030
81680rcu_preempt0-21swapper/009:54:170
81670rcu_preempt9819-21sh10:52:291
81670rcu_preempt3159-21ssh12:34:310
81670rcu_preempt28670-21ssh12:20:570
81670rcu_preempt26483-21ssh12:18:100
81670rcu_preempt20590-21ssh09:19:440
81670rcu_preempt1304-21ssh09:41:000
81670rcu_preempt10152-21ssh09:56:100
81670rcu_preempt0-21swapper/110:17:481
81670rcu_preempt0-21swapper/011:20:250
81660rcu_preempt4167-21ssh10:42:470
81660rcu_preempt3267-21ssh11:37:291
81660rcu_preempt3267-21ssh11:37:291
81660rcu_preempt29946-21ssh11:27:320
81660rcu_preempt25229-21ssh09:26:430
81660rcu_preempt23013-21ssh09:23:210
81660rcu_preempt17054-21ssh09:13:241
81660rcu_preempt14694-21ssh11:57:120
81660rcu_preempt12954-21ssh10:58:290
81660rcu_preempt0-21swapper/012:01:340
81660rcu_preempt0-21swapper/010:16:240
81650rcu_preempt9771-21ssh11:49:370
81650rcu_preempt30523-21ssh10:31:490
81650rcu_preempt28266-21ssh09:31:430
81650rcu_preempt16835-21ssh10:08:350
81650rcu_preempt14989-21ssh11:00:550
81650rcu_preempt13327-21ssh10:01:540
81650rcu_preempt0-21swapper/112:03:321
81650rcu_preempt0-21swapper/111:58:181
81650rcu_preempt0-21swapper/111:49:401
81650rcu_preempt0-21swapper/110:55:271
81650rcu_preempt0-21swapper/012:29:310
81650rcu_preempt0-21swapper/009:47:120
81640rcu_preempt32440-21ssh11:31:380
81640rcu_preempt19596-21ssh12:05:400
81640rcu_preempt15688-21df07:05:331
81640rcu_preempt0-21swapper/112:35:341
81640rcu_preempt0-21swapper/112:11:071
81640rcu_preempt0-21swapper/111:25:091
81640rcu_preempt0-21swapper/109:58:171
81640rcu_preempt0-21swapper/109:39:091
81640rcu_preempt0-21swapper/109:28:341
81640rcu_preempt0-21swapper/108:04:141
81640rcu_preempt0-21swapper/009:37:210
81640rcu_preempt0-21swapper/007:15:010
81630rcu_preempt0-21swapper/112:21:301
81630rcu_preempt0-21swapper/110:29:461
81630rcu_preempt0-21swapper/110:02:431
81630rcu_preempt0-21swapper/109:43:241
81630rcu_preempt0-21swapper/109:20:291
81630rcu_preempt0-21swapper/009:10:550
81630rcu_preempt0-21swapper/008:24:160
81630rcu_preempt0-21swapper/008:13:570
81630rcu_preempt0-21swapper/008:08:220
81630rcu_preempt0-21swapper/007:56:370
81630rcu_preempt0-21swapper/007:31:010
81630rcu_preempt0-21swapper/007:19:060
81620rcu_preempt8446-21latency_hist08:45:191
81620rcu_preempt25327-21ntp_states12:15:421
81620rcu_preempt0-21swapper/112:31:561
81620rcu_preempt0-21swapper/111:54:541
81620rcu_preempt0-21swapper/110:37:001
81620rcu_preempt0-21swapper/109:30:441
81620rcu_preempt0-21swapper/107:45:381
81620rcu_preempt0-21swapper/010:29:020
81620rcu_preempt0-21swapper/009:08:000
81620rcu_preempt0-21swapper/008:48:470
81620rcu_preempt0-21swapper/008:28:290
89950610irq/17-ehci_hcd945-21usb-storage07:20:121
81610rcu_preempt0-21swapper/108:25:341
81600rcu_preempt7976-21ntp_states08:40:420
81600rcu_preempt27075-21df07:50:320
81600rcu_preempt23321-21ssh10:20:311
81600rcu_preempt0-21swapper/109:05:371
81600rcu_preempt0-21swapper/108:10:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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