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2025-11-29 - 02:01
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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 28, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt5310-21/usr/sbin/munin07:05:100
151850790irq/30-eth0-tx-4781-21kworker/1:007:05:081
81760rcu_preempt21722-21ssh09:39:350
81740rcu_preempt2928-1kworker/1:0H07:43:501
81730rcu_preempt17919-1kworker/1:0H10:39:251
81710rcu_preempt26823-21apt-get11:45:031
81710rcu_preempt0-21swapper/111:15:101
81700rcu_preempt0-21swapper/011:10:040
81700rcu_preempt0-21swapper/009:30:130
81700rcu_preempt0-21swapper/007:45:130
81690rcu_preempt0-21swapper/110:50:091
81690rcu_preempt0-21swapper/008:05:130
81680rcu_preempt4427-21diskmemload09:50:580
81680rcu_preempt0-21swapper/112:13:141
81680rcu_preempt0-21swapper/010:27:420
81680rcu_preempt0-21swapper/010:20:000
81670rcu_preempt6287-21sh11:06:511
81670rcu_preempt4427-21diskmemload10:38:000
81670rcu_preempt0-21swapper/112:21:451
81660rcu_preempt7679-21ssh10:10:421
81660rcu_preempt0-21swapper/111:38:541
81660rcu_preempt0-21swapper/111:22:511
81660rcu_preempt0-21swapper/109:34:121
81660rcu_preempt0-21swapper/108:10:021
81660rcu_preempt0-21swapper/108:08:551
81650rcu_preempt0-21swapper/111:33:431
81650rcu_preempt0-21swapper/011:49:320
81650rcu_preempt0-21swapper/010:47:250
81640rcu_preempt31045-21ssh11:51:070
81640rcu_preempt17379-21head07:50:101
81640rcu_preempt15374-21ssh09:27:521
81630rcu_preempt1935-21/usr/sbin/munin11:00:050
81630rcu_preempt0-21swapper/109:56:461
81620rcu_preempt6827-21ssh12:06:031
81620rcu_preempt23871-21ssh12:37:411
81620rcu_preempt21343-21ssh11:35:010
81620rcu_preempt21144-21munin-run11:34:480
81620rcu_preempt0-21swapper/111:01:061
81620rcu_preempt0-21swapper/109:14:431
81620rcu_preempt0-21swapper/011:05:170
81610rcu_preempt19067-21ssh12:29:381
81610rcu_preempt0-21swapper/111:11:581
81610rcu_preempt0-21swapper/110:27:191
81610rcu_preempt0-21swapper/109:37:481
81610rcu_preempt0-21swapper/109:15:071
81610rcu_preempt0-21swapper/010:51:530
81610rcu_preempt0-21swapper/010:10:020
81610rcu_preempt0-21swapper/008:10:130
81600rcu_preempt4136-21memory10:05:091
81600rcu_preempt19346-21apt-get12:30:041
81600rcu_preempt1501-21proc_pri08:55:111
81600rcu_preempt0-21swapper/110:44:111
81600rcu_preempt0-21swapper/108:39:491
81600rcu_preempt0-21swapper/009:55:030
81600rcu_preempt0-21swapper/009:22:330
81590rcu_preempt27955-21munin-run08:34:480
81590rcu_preempt13305-21ssh10:20:511
81590rcu_preempt1282-21ssh10:58:291
81590rcu_preempt0-21swapper/112:17:551
81590rcu_preempt0-21swapper/111:57:411
81590rcu_preempt0-21swapper/111:50:461
81590rcu_preempt0-21swapper/109:40:551
81590rcu_preempt0-21swapper/109:05:151
81590rcu_preempt0-21swapper/109:00:131
81590rcu_preempt0-21swapper/012:25:110
81590rcu_preempt0-21swapper/012:21:270
81590rcu_preempt0-21swapper/009:25:110
89650580irq/17-ehci_hcd0-21swapper/009:10:240
81580rcu_preempt2166-21ssh10:00:521
81580rcu_preempt11967-21ssh09:20:461
81580rcu_preempt0-21swapper/111:40:031
81580rcu_preempt0-21swapper/110:45:121
81580rcu_preempt0-21swapper/109:52:361
81580rcu_preempt0-21swapper/109:45:121
81580rcu_preempt0-21swapper/108:20:061
81580rcu_preempt0-21swapper/107:35:031
81580rcu_preempt0-21swapper/009:45:030
81580rcu_preempt0-21swapper/008:40:110
81570rcu_preempt8292-21if_wlan007:15:061
81570rcu_preempt31104-21irqstats08:45:071
81570rcu_preempt19148-21ssh10:31:470
81570rcu_preempt0-21swapper/110:33:481
81570rcu_preempt0-21swapper/110:18:181
81570rcu_preempt0-21swapper/108:34:221
81570rcu_preempt0-21swapper/107:49:261
81570rcu_preempt0-21swapper/012:06:420
81570rcu_preempt0-21swapper/010:15:500
81570rcu_preempt0-21swapper/009:43:470
81570rcu_preempt0-21swapper/009:15:110
81560rcu_preempt26675-21sshd08:27:260
81560rcu_preempt23764-21ntpq08:15:101
81560rcu_preempt23256-21ssh12:35:250
81560rcu_preempt2292-21ssh10:01:160
81560rcu_preempt17604-21ssh11:27:421
81560rcu_preempt17094-21ssh11:26:020
81560rcu_preempt10549-21ssh12:13:470
81560rcu_preempt0-21swapper/112:00:281
81560rcu_preempt0-21swapper/107:59:531
81560rcu_preempt0-21swapper/107:56:151
81560rcu_preempt0-21swapper/107:29:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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