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2026-05-20 - 07:57
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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 Wed May 20, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/100:21:481
81760rcu_preempt0-21swapper/123:50:301
81750rcu_preempt19-21ksoftirqd/122:21:321
81750rcu_preempt19-21ksoftirqd/100:15:061
81740rcu_preempt26804-21sed23:17:071
81730rcu_preempt7425-21sort22:42:011
81710rcu_preempt27796-1kworker/0:2H22:09:530
81710rcu_preempt19-21ksoftirqd/121:52:321
81710rcu_preempt0-21swapper/100:18:061
81710rcu_preempt0-21swapper/023:42:080
81710rcu_preempt0-21swapper/022:33:070
81710rcu_preempt0-21swapper/019:21:550
81700rcu_preempt8438-21sh21:44:210
81700rcu_preempt0-21swapper/021:48:400
81690rcu_preempt19-21ksoftirqd/122:06:181
81690rcu_preempt0-21swapper/021:35:340
81690rcu_preempt0-21swapper/021:02:070
81680rcu_preempt2192-21snmpd23:37:091
81670rcu_preempt1111-21missed_timers00:32:060
81670rcu_preempt0-21swapper/022:15:080
81660rcu_preempt28421-21munin-run22:21:430
81660rcu_preempt12183-21apt-get21:51:550
81660rcu_preempt0-21swapper/122:00:331
81660rcu_preempt0-21swapper/119:06:591
81660rcu_preempt0-21swapper/021:39:360
81650rcu_preempt25164-21apt19:16:430
81650rcu_preempt0-21swapper/022:25:140
89150640irq/17-ehci_hcd945-21usb-storage21:30:241
81640rcu_preempt19-21ksoftirqd/123:10:291
81640rcu_preempt19-21ksoftirqd/121:40:311
81640rcu_preempt1772-21/usr/sbin/munin23:31:440
89950630irq/17-ehci_hcd945-21usb-storage23:57:041
81630rcu_preempt28969-21munin-run19:31:420
81630rcu_preempt0-21swapper/000:21:120
89950620irq/17-ehci_hcd181ktimersoftd/123:15:221
89550620irq/17-ehci_hcd0-21swapper/000:06:440
81620rcu_preempt5375-21memory23:37:040
81620rcu_preempt0-21swapper/023:12:330
81620rcu_preempt0-21swapper/022:52:070
81620rcu_preempt0-21swapper/022:52:070
146250620irq/28-eth0-rx-1283-21jbd2/sda3-823:51:491
81610rcu_preempt0-21swapper/022:38:520
81610rcu_preempt0-21swapper/000:39:440
23917996149cyclictest945-21usb-storage23:46:211
81600rcu_preempt18264-21df_inode23:01:570
81600rcu_preempt17433-21munin-run22:01:440
81600rcu_preempt0-21swapper/023:57:010
146650600irq/31-eth0-tx-41ktimersoftd/022:03:320
81590rcu_preempt3267-21ssh22:33:421
81590rcu_preempt30101-21ssh21:25:340
81590rcu_preempt2339-21ssh21:32:361
81590rcu_preempt0-21swapper/120:17:051
81590rcu_preempt0-21swapper/120:06:571
81590rcu_preempt0-21swapper/023:52:190
89950580irq/17-ehci_hcd945-21usb-storage19:10:510
89550580irq/17-ehci_hcd30448-21ssh23:23:250
81580rcu_preempt30744-21ssh23:24:271
81580rcu_preempt22449-21ssh00:07:590
81580rcu_preempt0-21swapper/122:55:001
81580rcu_preempt0-21swapper/122:55:001
81580rcu_preempt0-21swapper/121:18:461
81580rcu_preempt0-21swapper/120:46:401
81580rcu_preempt0-21swapper/119:37:071
81580rcu_preempt0-21swapper/119:24:401
81580rcu_preempt0-21swapper/100:32:341
81580rcu_preempt0-21swapper/100:26:461
81580rcu_preempt0-21swapper/100:06:581
81580rcu_preempt0-21swapper/100:06:031
81580rcu_preempt0-21swapper/022:47:090
81580rcu_preempt0-21swapper/019:57:060
81580rcu_preempt0-21swapper/000:21:450
23917995849cyclictest945-21usb-storage20:24:041
23917995847cyclictest945-21usb-storage22:58:361
23917995847cyclictest945-21usb-storage22:29:151
81570rcu_preempt9365-21apt-get20:21:540
81570rcu_preempt8291-21ssh22:42:160
81570rcu_preempt7979-21ssh21:42:521
81570rcu_preempt32744-21ssh21:30:210
81570rcu_preempt0-21swapper/123:32:291
81570rcu_preempt0-21swapper/123:27:541
81570rcu_preempt0-21swapper/123:04:001
81570rcu_preempt0-21swapper/122:49:081
81570rcu_preempt0-21swapper/122:24:391
81570rcu_preempt0-21swapper/121:23:321
81570rcu_preempt0-21swapper/121:13:301
81570rcu_preempt0-21swapper/121:04:211
81570rcu_preempt0-21swapper/120:52:041
81570rcu_preempt0-21swapper/120:36:401
81570rcu_preempt0-21swapper/119:52:011
81570rcu_preempt0-21swapper/119:47:081
81570rcu_preempt0-21swapper/119:42:551
81570rcu_preempt0-21swapper/119:34:301
81570rcu_preempt0-21swapper/100:37:091
81570rcu_preempt0-21swapper/023:36:020
81570rcu_preempt0-21swapper/021:16:530
81570rcu_preempt0-21swapper/019:17:000
81560rcu_preempt6486-21ssh22:40:101
81560rcu_preempt22365-21ssh22:09:561
81560rcu_preempt21098-21if_can121:07:010
81560rcu_preempt21016-21diskstats23:06:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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