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2026-03-27 - 11:55
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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 Fri Mar 27, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt27660-21ssh22:49:171
89850750irq/17-ehci_hcd19-21ksoftirqd/123:36:041
81740rcu_preempt16987-21ssh00:35:051
81740rcu_preempt15803-21ntpq22:25:051
81710rcu_preempt22167-21ssh21:24:051
81710rcu_preempt19304-21if_can119:14:571
81710rcu_preempt0-21swapper/120:54:531
89850700irq/17-ehci_hcd5740-21/usr/sbin/munin00:10:061
81700rcu_preempt2394-1kworker/1:1H22:31:091
81700rcu_preempt13140-21sh00:28:190
81700rcu_preempt0-21swapper/120:04:571
81700rcu_preempt0-21swapper/022:11:070
81700rcu_preempt0-21swapper/019:20:100
81690rcu_preempt2884-21sh23:03:180
89850680irq/17-ehci_hcd171rcuc/123:24:401
81680rcu_preempt25037-21apt-get21:29:511
81680rcu_preempt0-21swapper/123:29:541
81680rcu_preempt0-21swapper/123:09:431
81680rcu_preempt0-21swapper/021:23:530
81670rcu_preempt25586-21if_can019:39:581
81670rcu_preempt24400-21sh22:41:441
81670rcu_preempt15533-21sh23:27:160
81670rcu_preempt0-21swapper/123:40:051
81670rcu_preempt0-21swapper/123:17:181
81670rcu_preempt0-21swapper/123:00:191
81670rcu_preempt0-21swapper/121:48:401
81670rcu_preempt0-21swapper/121:15:251
81670rcu_preempt0-21swapper/100:44:261
81670rcu_preempt0-21swapper/022:45:020
81660rcu_preempt9253-21munin-run20:44:401
81660rcu_preempt6562-21kworker/0:123:36:060
81660rcu_preempt30013-21switchtime19:55:050
81660rcu_preempt26045-21switchtime21:30:050
81660rcu_preempt14923-21interrupts21:04:591
81660rcu_preempt0-21swapper/122:39:331
81660rcu_preempt0-21swapper/121:29:211
81660rcu_preempt0-21swapper/121:00:061
81660rcu_preempt0-21swapper/100:14:561
81660rcu_preempt0-21swapper/022:16:280
81660rcu_preempt0-21swapper/021:17:010
81650rcu_preempt3097-21latency_hist21:49:401
81650rcu_preempt24028-21apt-get19:34:521
81650rcu_preempt13275-21munin-run22:19:401
81650rcu_preempt0-21swapper/120:35:071
81650rcu_preempt0-21swapper/120:35:071
81650rcu_preempt0-21swapper/119:11:161
81650rcu_preempt0-21swapper/100:31:141
81640rcu_preempt12673-21rm00:25:521
81640rcu_preempt0-21swapper/122:55:431
81640rcu_preempt0-21swapper/122:08:451
81640rcu_preempt0-21swapper/121:56:361
81640rcu_preempt0-21swapper/120:09:571
81640rcu_preempt0-21swapper/120:00:051
81640rcu_preempt0-21swapper/020:19:070
81630rcu_preempt3829-21ssh00:06:481
81630rcu_preempt24922-21ssh23:45:020
81630rcu_preempt0-21swapper/123:51:181
81630rcu_preempt0-21swapper/119:24:571
81630rcu_preempt0-21swapper/023:54:590
81630rcu_preempt0-21swapper/023:40:020
81630rcu_preempt0-21swapper/022:35:200
81630rcu_preempt0-21swapper/021:46:580
81630rcu_preempt0-21swapper/021:39:510
81620rcu_preempt30217-21munin-run21:39:400
81620rcu_preempt17720-21ssh22:29:530
81620rcu_preempt16828-21diskmemload23:27:311
81620rcu_preempt13837-21ssh22:21:091
81620rcu_preempt0-21swapper/122:50:321
81620rcu_preempt0-21swapper/121:35:051
81620rcu_preempt0-21swapper/022:08:390
81620rcu_preempt0-21swapper/020:09:570
81610rcu_preempt5578-21ssh23:08:581
81610rcu_preempt23099-21kworker/1:123:45:011
81610rcu_preempt16828-21diskmemload23:55:341
81610rcu_preempt10813-21ssh22:10:551
81610rcu_preempt0-21swapper/023:12:540
81610rcu_preempt0-21swapper/020:25:050
81610rcu_preempt0-21swapper/000:36:180
81600rcu_preempt31973-21cpu23:59:560
81600rcu_preempt19599-21ssh00:40:030
81600rcu_preempt11142-21irqstats20:50:001
81600rcu_preempt0-21swapper/121:43:441
81600rcu_preempt0-21swapper/120:25:041
81600rcu_preempt0-21swapper/119:44:581
81600rcu_preempt0-21swapper/100:00:431
81600rcu_preempt0-21swapper/023:07:270
1599600migration/018138-21/usr/sbin/munin19:09:590
81590rcu_preempt23011-21if_eth121:24:590
81590rcu_preempt10454-21ssh00:20:171
81590rcu_preempt0-21swapper/122:01:271
81590rcu_preempt0-21swapper/023:30:010
81590rcu_preempt0-21swapper/022:39:570
81590rcu_preempt0-21swapper/021:05:010
81590rcu_preempt0-21swapper/020:00:020
81590rcu_preempt0-21swapper/019:39:580
81590rcu_preempt0-21swapper/000:05:300
81580rcu_preempt12720-21ssh23:21:010
81580rcu_preempt0-21swapper/119:20:031
81580rcu_preempt0-21swapper/000:20:040
81570rcu_preempt4771-21ssh21:54:510
81570rcu_preempt0-21swapper/120:30:021
81570rcu_preempt0-21swapper/120:14:591
81570rcu_preempt0-21swapper/022:25:060
81570rcu_preempt0-21swapper/021:00:160
81570rcu_preempt0-21swapper/020:49:590
81560rcu_preempt28604-21ssh23:52:110
81560rcu_preempt15533-21ssh00:32:470
81560rcu_preempt0-21swapper/120:47:071
81560rcu_preempt0-21swapper/119:30:471
81560rcu_preempt0-21swapper/022:50:050
81560rcu_preempt0-21swapper/022:20:130
81560rcu_preempt0-21swapper/021:50:220
81560rcu_preempt0-21swapper/020:39:590
81560rcu_preempt0-21swapper/019:52:300
81560rcu_preempt0-21swapper/019:14:560
81550rcu_preempt7079-21ssh22:02:580
81550rcu_preempt0-21swapper/020:31:460
81540rcu_preempt0-21swapper/023:17:460
81540rcu_preempt0-21swapper/019:44:580
81540rcu_preempt0-21swapper/000:14:010
147650540irq/28-eth0-rx-41ktimersoftd/020:19:550
81530rcu_preempt27965-21df19:49:531
81530rcu_preempt0-21swapper/020:57:550
81520rcu_preempt2138-21snmpd19:56:391
81520rcu_preempt0-21swapper/019:29:550
81520rcu_preempt0-21swapper/019:27:510
81510rcu_preempt31894-21ssh22:55:570
81500rcu_preempt0-21swapper/000:15:040
81490rcu_preempt0-21swapper/121:09:581
81490rcu_preempt0-21swapper/021:10:010
81490rcu_preempt0-21swapper/020:36:150
81490rcu_preempt0-21swapper/020:36:150
147850460irq/30-eth0-tx-32266-21strings20:05:000
81400rcu_preempt3592-21memory20:20:021
147850370irq/30-eth0-tx-24025-21/usr/sbin/munin19:34:580
147850350irq/30-eth0-tx-0-21swapper/020:45:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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