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2025-11-30 - 02:52
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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 Sat Nov 29, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt0-21swapper/010:31:520
81770rcu_preempt10206-21memory10:40:091
81770rcu_preempt0-21swapper/010:41:360
81710rcu_preempt0-21swapper/107:06:051
81700rcu_preempt8409-21df_inode09:40:021
81700rcu_preempt0-21swapper/010:45:140
81700rcu_preempt0-21swapper/009:50:090
81690rcu_preempt381-21processes12:20:130
81690rcu_preempt31241-21ssh09:23:060
81690rcu_preempt0-21swapper/009:10:020
81690rcu_preempt0-21swapper/007:10:060
81680rcu_preempt0-21swapper/010:39:440
81680rcu_preempt0-21swapper/010:39:440
81670rcu_preempt7656-21awk11:34:470
81670rcu_preempt27672-21latency_hist10:14:480
81670rcu_preempt0-21swapper/011:48:050
90050660irq/17-ehci_hcd946-21usb-storage10:25:050
81660rcu_preempt30548-21/usr/sbin/munin10:19:480
81660rcu_preempt20442-21munin-run08:59:480
81660rcu_preempt0-21swapper/107:25:031
90050650irq/17-ehci_hcd946-21usb-storage12:12:381
81650rcu_preempt0-21swapper/112:00:111
81650rcu_preempt0-21swapper/011:08:380
81650rcu_preempt0-21swapper/009:31:180
81640rcu_preempt28259-21ssh11:12:370
81640rcu_preempt19649-21ssh10:00:030
81640rcu_preempt0-21swapper/109:18:281
81640rcu_preempt0-21swapper/108:48:141
81640rcu_preempt0-21swapper/009:18:470
81630rcu_preempt21730-21ssh11:00:131
81630rcu_preempt0-21swapper/110:54:321
81630rcu_preempt0-21swapper/110:19:321
81630rcu_preempt0-21swapper/012:10:040
81620rcu_preempt31294-21munin-run07:34:480
81620rcu_preempt0-21swapper/109:36:061
81610rcu_preempt9776-21ssh11:37:401
81610rcu_preempt6905-21ssh11:32:321
81610rcu_preempt19910-1kworker/1:1H07:17:311
81610rcu_preempt11539-21ps11:40:140
81610rcu_preempt0-21swapper/110:10:051
81610rcu_preempt0-21swapper/109:22:571
81610rcu_preempt0-21swapper/012:15:360
81610rcu_preempt0-21swapper/011:50:000
81610rcu_preempt0-21swapper/011:35:090
81610rcu_preempt0-21swapper/007:55:070
81600rcu_preempt4921-21ssh12:29:551
81600rcu_preempt32625-21ssh09:25:081
81600rcu_preempt27982-21ssh11:11:491
81600rcu_preempt24456-21ssh09:10:341
81600rcu_preempt21275-21grep11:59:470
81600rcu_preempt19228-21ssh09:59:421
81600rcu_preempt11954-21ssh11:40:361
81600rcu_preempt0-21swapper/111:57:311
81600rcu_preempt0-21swapper/110:56:501
81600rcu_preempt0-21swapper/110:06:191
81600rcu_preempt0-21swapper/109:50:051
81600rcu_preempt0-21swapper/109:31:521
81600rcu_preempt0-21swapper/109:00:121
81600rcu_preempt0-21swapper/010:56:160
81590rcu_preempt1959-21ssh12:24:301
81590rcu_preempt15511-21ssh11:48:111
81590rcu_preempt13402-21ssh09:49:171
81590rcu_preempt0-21swapper/111:28:401
81590rcu_preempt0-21swapper/108:05:131
81590rcu_preempt0-21swapper/009:56:580
81590rcu_preempt0-21swapper/009:35:040
81590rcu_preempt0-21swapper/007:50:070
81580rcu_preempt23234-21ssh12:02:410
81580rcu_preempt18351-21ssh11:53:421
81580rcu_preempt13830-21ssh10:46:261
81580rcu_preempt0-21swapper/112:39:401
81580rcu_preempt0-21swapper/111:24:411
81580rcu_preempt0-21swapper/110:38:531
81580rcu_preempt0-21swapper/110:38:531
81580rcu_preempt0-21swapper/110:31:531
81580rcu_preempt0-21swapper/110:26:471
81580rcu_preempt0-21swapper/107:20:031
81580rcu_preempt0-21swapper/011:04:250
81570rcu_preempt9722-21ssh09:41:270
81570rcu_preempt31074-21ssh12:17:051
81570rcu_preempt29098-21ssh11:14:490
81570rcu_preempt26144-21ssh12:08:271
81570rcu_preempt24353-21ssh10:08:300
81570rcu_preempt2235-21snmpd07:52:381
81570rcu_preempt13569-21memory08:30:071
81570rcu_preempt0-21swapper/112:26:181
81570rcu_preempt0-21swapper/111:15:141
81570rcu_preempt0-21swapper/111:05:051
81570rcu_preempt0-21swapper/110:23:451
81570rcu_preempt0-21swapper/110:00:411
81570rcu_preempt0-21swapper/108:20:011
81570rcu_preempt0-21swapper/107:42:161
81570rcu_preempt0-21swapper/011:26:560
81560rcu_preempt31851-21ssh11:19:520
81560rcu_preempt1748-21ssh09:28:470
81560rcu_preempt0-21swapper/108:51:021
81560rcu_preempt0-21swapper/107:38:041
81560rcu_preempt0-21swapper/010:52:510
81560rcu_preempt0-21swapper/007:40:150
81560rcu_preempt0-21swapper/007:09:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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