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2026-06-22 - 10:58
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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 highest latencies:
System rackcslot3.osadl.org (updated Mon Jun 22, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950830irq/17-ehci_hcd28939-21diskmemload23:41:241
81830rcu_preempt0-21swapper/119:09:491
81790rcu_preempt19-21ksoftirqd/100:18:271
81750rcu_preempt0-21swapper/022:41:460
81730rcu_preempt8047-21ssh23:34:540
81730rcu_preempt19-21ksoftirqd/123:28:071
81720rcu_preempt0-21swapper/023:00:400
81710rcu_preempt26835-21ssh00:09:570
81710rcu_preempt0-21swapper/000:25:140
81710rcu_preempt0-21swapper/000:04:540
81700rcu_preempt0-21swapper/021:57:430
81700rcu_preempt0-21swapper/021:04:520
81690rcu_preempt2310-21wc19:24:560
81680rcu_preempt4443-21ntp_states00:29:550
81680rcu_preempt11530-21munin-run00:44:310
81680rcu_preempt0-21swapper/000:20:400
81670rcu_preempt18789-21munin-run20:34:300
81670rcu_preempt16902-21kernelversion20:24:490
81670rcu_preempt0-21swapper/122:10:041
81670rcu_preempt0-21swapper/022:51:420
81670rcu_preempt0-21swapper/019:13:220
81660rcu_preempt20181-21apt-get20:39:390
81660rcu_preempt0-21swapper/021:19:410
81640rcu_preempt0-21swapper/022:47:210
81630rcu_preempt0-21swapper/121:54:561
81630rcu_preempt0-21swapper/120:29:171
81630rcu_preempt0-21swapper/021:42:380
81620rcu_preempt4174-21ssh21:26:460
81620rcu_preempt25402-21ssh23:07:031
81620rcu_preempt14735-21ssh22:47:011
81620rcu_preempt0-21swapper/100:34:511
81620rcu_preempt0-21swapper/023:17:260
81620rcu_preempt0-21swapper/022:12:060
89950610irq/17-ehci_hcd945-21usb-storage00:24:551
81610rcu_preempt9725-21ssh21:37:431
81610rcu_preempt6639-21ssh23:32:511
81610rcu_preempt6582-21sshd21:31:191
81610rcu_preempt355-21ssh00:23:251
81610rcu_preempt20451-21ssh22:58:281
81610rcu_preempt20398-21ssh23:59:231
81610rcu_preempt14649-21ssh21:46:141
81610rcu_preempt14521-21ssh23:47:301
81610rcu_preempt0-21swapper/123:52:031
81610rcu_preempt0-21swapper/100:01:131
81610rcu_preempt0-21swapper/100:01:131
81610rcu_preempt0-21swapper/023:50:510
89950600irq/17-ehci_hcd945-21usb-storage19:32:131
81600rcu_preempt6963-21ssh22:33:021
81600rcu_preempt3798-21ssh22:26:011
81600rcu_preempt17215-21ssh21:50:421
81600rcu_preempt11451-21ssh22:40:011
81600rcu_preempt0-21swapper/123:37:561
81600rcu_preempt0-21swapper/123:20:321
81600rcu_preempt0-21swapper/122:49:461
81600rcu_preempt0-21swapper/122:38:361
81600rcu_preempt0-21swapper/120:54:451
81600rcu_preempt0-21swapper/023:13:410
81600rcu_preempt0-21swapper/021:32:070
81600rcu_preempt0-21swapper/021:09:420
81600rcu_preempt0-21swapper/020:04:400
81590rcu_preempt30347-21ssh23:15:311
81590rcu_preempt2976-21if_wlan019:29:480
81590rcu_preempt1434-21ssh22:22:321
81590rcu_preempt12866-21ssh21:44:191
81590rcu_preempt0-21swapper/122:07:351
81590rcu_preempt0-21swapper/121:20:471
81590rcu_preempt0-21swapper/121:13:501
81590rcu_preempt0-21swapper/121:04:561
81590rcu_preempt0-21swapper/100:44:121
81590rcu_preempt0-21swapper/100:31:431
81590rcu_preempt0-21swapper/022:54:570
81590rcu_preempt0-21swapper/022:17:540
81590rcu_preempt0-21swapper/021:34:470
81590rcu_preempt0-21swapper/020:14:430
81580rcu_preempt8521-21mailstats22:34:560
81580rcu_preempt3338-21ssh23:25:540
81580rcu_preempt27714-21ssh00:11:561
81580rcu_preempt23850-21apt-get22:04:440
81580rcu_preempt0-21swapper/123:09:571
81580rcu_preempt0-21swapper/122:59:361
81580rcu_preempt0-21swapper/121:27:071
81580rcu_preempt0-21swapper/121:15:421
81580rcu_preempt0-21swapper/121:01:111
81580rcu_preempt0-21swapper/120:39:521
81580rcu_preempt0-21swapper/120:34:511
81580rcu_preempt0-21swapper/120:14:441
81580rcu_preempt0-21swapper/119:43:151
81580rcu_preempt0-21swapper/119:27:541
81580rcu_preempt0-21swapper/100:06:051
81580rcu_preempt0-21swapper/023:20:400
81580rcu_preempt0-21swapper/023:07:430
81580rcu_preempt0-21swapper/022:29:360
81580rcu_preempt0-21swapper/021:47:330
81580rcu_preempt0-21swapper/021:15:230
81570rcu_preempt4520-21ssh22:28:260
81570rcu_preempt22940-21ssh22:02:061
81570rcu_preempt20053-21munin-run20:39:290
81570rcu_preempt0-21swapper/122:14:381
81570rcu_preempt0-21swapper/119:48:391
81570rcu_preempt0-21swapper/119:22:251
81570rcu_preempt0-21swapper/119:18:471
81570rcu_preempt0-21swapper/023:59:140
81570rcu_preempt0-21swapper/022:03:510
81570rcu_preempt0-21swapper/021:49:490
81570rcu_preempt0-21swapper/019:39:460
81570rcu_preempt0-21swapper/000:02:380
81570rcu_preempt0-21swapper/000:02:380
146650570irq/31-eth0-tx-41ktimersoftd/000:36:020
81560rcu_preempt4103-21if_can119:34:460
81560rcu_preempt14054-21ssh23:45:510
81560rcu_preempt0-21swapper/119:49:521
81560rcu_preempt0-21swapper/119:37:161
81560rcu_preempt0-21swapper/023:32:290
81550rcu_preempt29746-21ssh00:16:070
81550rcu_preempt11114-21ssh23:40:170
81550rcu_preempt0-21swapper/120:50:541
81550rcu_preempt0-21swapper/119:54:551
81550rcu_preempt0-21swapper/119:54:551
81550rcu_preempt0-21swapper/022:23:340
81550rcu_preempt0-21swapper/019:44:470
81550rcu_preempt0-21swapper/019:24:240
81550rcu_preempt0-21swapper/019:14:520
81540rcu_preempt18376-21ntpq20:29:541
81540rcu_preempt15857-21ntp_states20:19:521
81540rcu_preempt10808-21ntp_states19:59:531
81540rcu_preempt0-21swapper/120:12:291
81540rcu_preempt0-21swapper/120:07:541
81530rcu_preempt0-21swapper/020:02:240
81510rcu_preempt25530-21diskstats20:59:450
81510rcu_preempt0-21swapper/020:46:040
81510rcu_preempt0-21swapper/020:19:500
81510rcu_preempt0-21swapper/019:51:400
81500rcu_preempt12865-21diskstats20:09:450
81490rcu_preempt24746-21ntp_states20:54:520
30961994842cyclictest945-21usb-storage20:46:111
146650460irq/31-eth0-tx-9271-21/usr/sbin/munin19:54:490
146650460irq/31-eth0-tx-9271-21/usr/sbin/munin19:54:490
3096099356cyclictest16238-21kworker/0:120:50:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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