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2026-04-13 - 17:01
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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 Mon Apr 13, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147650840irq/28-eth0-rx-19-21ksoftirqd/107:10:471
81760rcu_preempt9212-21munin-run09:25:271
81760rcu_preempt18699-21df_abs08:05:411
81750rcu_preempt7724-21sh10:24:071
81730rcu_preempt8932-21sh11:28:301
81730rcu_preempt32361-21sh10:09:120
81730rcu_preempt15351-21diskmemload09:35:510
81720rcu_preempt0-21swapper/007:11:590
81710rcu_preempt9935-21irqstats09:25:480
81710rcu_preempt27667-21ssh10:00:330
81710rcu_preempt27231-21ssh09:59:260
81700rcu_preempt5188-21ssh12:23:150
81700rcu_preempt2138-21snmpd11:05:381
81700rcu_preempt13285-21sh10:35:011
81700rcu_preempt0-21swapper/012:07:280
81700rcu_preempt0-21swapper/011:29:060
81700rcu_preempt0-21swapper/009:45:350
81700rcu_preempt0-21swapper/008:40:440
81700rcu_preempt0-21swapper/008:30:400
81690rcu_preempt2067-21diskmemload12:16:240
81690rcu_preempt13597-21munin-run12:40:270
81690rcu_preempt0-21swapper/112:30:241
81690rcu_preempt0-21swapper/111:46:591
81690rcu_preempt0-21swapper/111:42:041
81690rcu_preempt0-21swapper/107:20:481
81680rcu_preempt30827-21df12:10:400
81680rcu_preempt18826-21ssh11:46:530
81680rcu_preempt13441-21timerwakeupswit11:35:541
81680rcu_preempt0-21swapper/112:05:051
81680rcu_preempt0-21swapper/110:57:411
81680rcu_preempt0-21swapper/109:55:581
81670rcu_preempt6913-21sh11:25:270
81670rcu_preempt603-21needreboot09:00:491
81670rcu_preempt31197-21sh12:10:451
81670rcu_preempt0-21swapper/110:28:471
81670rcu_preempt0-21swapper/108:40:451
81660rcu_preempt27992-21ssh10:00:441
81660rcu_preempt0-21swapper/111:52:151
81660rcu_preempt0-21swapper/109:50:301
81660rcu_preempt0-21swapper/012:41:440
81650rcu_preempt9654-21apt-get07:30:380
81650rcu_preempt26125-21sh10:59:290
81650rcu_preempt21943-21switchtime08:15:521
81650rcu_preempt0-21swapper/011:55:430
81640rcu_preempt0-21swapper/111:32:381
81640rcu_preempt0-21swapper/111:20:381
81640rcu_preempt0-21swapper/109:40:351
81630rcu_preempt23738-21df_abs08:25:411
81630rcu_preempt0-21swapper/112:20:471
81630rcu_preempt0-21swapper/112:19:561
81630rcu_preempt0-21swapper/110:05:371
81620rcu_preempt18040-21ps08:00:510
81620rcu_preempt0-21swapper/110:49:361
81620rcu_preempt0-21swapper/110:41:011
81620rcu_preempt0-21swapper/109:25:411
81620rcu_preempt0-21swapper/107:55:501
81620rcu_preempt0-21swapper/107:15:461
81620rcu_preempt0-21swapper/007:50:450
81610rcu_preempt21807-21ssh09:49:011
81610rcu_preempt20812-21ntp_states11:50:500
81610rcu_preempt16351-21ssh09:38:001
81610rcu_preempt0-21swapper/112:08:391
81610rcu_preempt0-21swapper/110:12:031
81610rcu_preempt0-21swapper/109:10:531
81610rcu_preempt0-21swapper/009:20:520
81610rcu_preempt0-21swapper/007:45:500
81600rcu_preempt5982-21rm12:25:290
81600rcu_preempt5727-21cyclictest09:40:400
81600rcu_preempt4099-21ssh11:19:371
81600rcu_preempt15802-21ssh10:39:410
81600rcu_preempt13983-21awk10:35:471
81600rcu_preempt0-21swapper/111:56:371
81600rcu_preempt0-21swapper/111:05:231
81600rcu_preempt0-21swapper/109:32:571
81600rcu_preempt0-21swapper/107:40:501
81600rcu_preempt0-21swapper/011:37:450
81590rcu_preempt6376-21ssh10:20:500
81590rcu_preempt26601-21/usr/sbin/munin11:00:530
81590rcu_preempt20185-21ssh10:46:320
81590rcu_preempt10593-21ssh12:34:131
81590rcu_preempt0-21swapper/108:55:411
81590rcu_preempt0-21swapper/108:22:241
81590rcu_preempt0-21swapper/107:25:461
81590rcu_preempt0-21swapper/010:15:550
81590rcu_preempt0-21swapper/009:35:050
81580rcu_preempt4593-21ssh09:15:480
81580rcu_preempt3707-21diskmemload10:42:120
81580rcu_preempt30990-21ssh11:08:210
81580rcu_preempt23390-21munin-run08:25:260
81580rcu_preempt0-21swapper/112:37:061
81580rcu_preempt0-21swapper/111:12:041
81580rcu_preempt0-21swapper/110:50:341
81580rcu_preempt0-21swapper/110:17:591
81580rcu_preempt0-21swapper/109:16:161
81580rcu_preempt0-21swapper/108:53:261
81580rcu_preempt0-21swapper/108:37:191
81580rcu_preempt0-21swapper/108:31:301
81580rcu_preempt0-21swapper/108:02:591
81580rcu_preempt0-21swapper/010:33:480
81570rcu_preempt16418-21ssh11:42:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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