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2026-03-30 - 05:53
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Mon Mar 30, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/119:11:201
81730rcu_preempt16780-21sh21:18:380
81720rcu_preempt17689-21ssh22:20:380
89850710irq/17-ehci_hcd19542-21ssh00:30:131
81710rcu_preempt0-21swapper/020:00:120
81710rcu_preempt0-21swapper/019:20:020
81710rcu_preempt0-21swapper/019:14:480
81700rcu_preempt12301-21ssh23:14:350
81690rcu_preempt22669-21sh21:30:050
81680rcu_preempt24538-21sh23:36:520
81680rcu_preempt0-21swapper/122:30:071
81680rcu_preempt0-21swapper/023:41:170
81680rcu_preempt0-21swapper/023:01:540
81680rcu_preempt0-21swapper/021:40:160
81660rcu_preempt5690-21ssh21:59:190
81660rcu_preempt0-21swapper/122:28:371
81660rcu_preempt0-21swapper/020:49:590
81650rcu_preempt860-21/usr/sbin/munin23:55:010
89450640irq/17-ehci_hcd10147-1kworker/0:1H22:07:420
81640rcu_preempt32318-21ssh23:51:591
81640rcu_preempt0-21swapper/119:16:141
81640rcu_preempt0-21swapper/100:14:421
81630rcu_preempt5294-21ssh21:57:471
81630rcu_preempt0-21swapper/123:32:441
81630rcu_preempt0-21swapper/123:05:111
81630rcu_preempt0-21swapper/123:05:111
81630rcu_preempt0-21swapper/122:13:341
81630rcu_preempt0-21swapper/023:25:000
81630rcu_preempt0-21swapper/022:25:100
81630rcu_preempt0-21swapper/000:05:140
81620rcu_preempt7760-21ssh00:06:561
81620rcu_preempt19924-21turbostat.cron21:24:480
81620rcu_preempt14905-21ssh23:19:231
81620rcu_preempt0-21swapper/123:35:131
81620rcu_preempt0-21swapper/122:57:551
81620rcu_preempt0-21swapper/122:02:571
81620rcu_preempt0-21swapper/121:45:021
81620rcu_preempt0-21swapper/121:41:221
81620rcu_preempt0-21swapper/119:30:111
81620rcu_preempt0-21swapper/023:15:030
81620rcu_preempt0-21swapper/022:57:070
81620rcu_preempt0-21swapper/020:15:130
81620rcu_preempt0-21swapper/019:40:110
81610rcu_preempt5821-21munin-run00:04:480
81610rcu_preempt26138-1kworker/0:1H22:38:580
81610rcu_preempt25974-21ssh00:44:251
81610rcu_preempt22860-21ssh00:37:421
81610rcu_preempt16918-21ssh23:22:121
81610rcu_preempt16680-21ssh21:18:181
81610rcu_preempt15514-21ssh22:16:541
81610rcu_preempt0-21swapper/123:40:111
81610rcu_preempt0-21swapper/123:10:261
81610rcu_preempt0-21swapper/121:50:121
81610rcu_preempt0-21swapper/121:25:121
81610rcu_preempt0-21swapper/120:40:091
81610rcu_preempt0-21swapper/120:35:101
81610rcu_preempt0-21swapper/100:26:321
81610rcu_preempt0-21swapper/100:20:021
81610rcu_preempt0-21swapper/100:20:021
81600rcu_preempt28537-21strings20:00:071
81600rcu_preempt28344-21ssh22:41:291
81600rcu_preempt2820-21ssh23:58:071
81600rcu_preempt11022-21ssh22:09:361
81600rcu_preempt0-21swapper/123:00:061
81600rcu_preempt0-21swapper/122:19:491
81600rcu_preempt0-21swapper/100:17:561
81600rcu_preempt0-21swapper/000:15:120
81590rcu_preempt31516-21sshd20:11:040
81590rcu_preempt26920-21ssh21:36:521
81590rcu_preempt22645-21ssh00:36:530
81590rcu_preempt20125-21ssh21:24:590
81590rcu_preempt19181-21sshd21:22:251
81590rcu_preempt0-21swapper/122:52:031
81590rcu_preempt0-21swapper/122:45:081
81590rcu_preempt0-21swapper/122:39:231
81590rcu_preempt0-21swapper/119:49:581
81590rcu_preempt0-21swapper/100:00:061
81590rcu_preempt0-21swapper/023:05:040
81590rcu_preempt0-21swapper/023:05:040
81590rcu_preempt0-21swapper/019:45:130
81580rcu_preempt30909-21ssh22:46:180
81580rcu_preempt28975-21ssh22:43:470
81580rcu_preempt24890-21ssh21:34:101
81580rcu_preempt19785-21ntpq19:25:091
81580rcu_preempt14364-21diskmemload22:53:350
81580rcu_preempt0-21swapper/123:26:431
81580rcu_preempt0-21swapper/120:56:061
81580rcu_preempt0-21swapper/120:25:131
81580rcu_preempt0-21swapper/119:55:411
81580rcu_preempt0-21swapper/119:19:551
81580rcu_preempt0-21swapper/022:00:020
81580rcu_preempt0-21swapper/021:50:490
81580rcu_preempt0-21swapper/019:25:080
81570rcu_preempt0-21swapper/120:15:151
81570rcu_preempt0-21swapper/119:35:111
81570rcu_preempt0-21swapper/022:31:090
81570rcu_preempt0-21swapper/021:46:460
81570rcu_preempt0-21swapper/021:35:080
81570rcu_preempt0-21swapper/000:42:260
81570rcu_preempt0-21swapper/000:31:090
81570rcu_preempt0-21swapper/000:12:300
81560rcu_preempt6892-21apt-esm-hook20:45:001
81560rcu_preempt30452-21ssh23:49:440
81560rcu_preempt29887-21ntp_states20:05:111
81560rcu_preempt24100-21cat19:44:481
81560rcu_preempt20837-21ssh23:30:070
81560rcu_preempt12760-21sshd22:11:250
81560rcu_preempt0-21swapper/123:46:461
81560rcu_preempt0-21swapper/120:21:291
81560rcu_preempt0-21swapper/023:50:300
81560rcu_preempt0-21swapper/020:55:040
81560rcu_preempt0-21swapper/020:33:570
81560rcu_preempt0-21swapper/020:27:370
81560rcu_preempt0-21swapper/019:15:160
81560rcu_preempt0-21swapper/000:21:290
81560rcu_preempt0-21swapper/000:21:290
81550rcu_preempt0-21swapper/121:06:151
81550rcu_preempt0-21swapper/119:40:131
81550rcu_preempt0-21swapper/020:38:250
81550rcu_preempt0-21swapper/020:21:460
81550rcu_preempt0-21swapper/000:25:020
81540rcu_preempt25375-21apt-esm-hook19:50:010
81540rcu_preempt16180-21sh22:19:350
81540rcu_preempt0-21swapper/121:10:081
81540rcu_preempt0-21swapper/021:01:330
81540rcu_preempt0-21swapper/020:06:290
16398995450cyclictest945-21usb-storage20:30:131
81530rcu_preempt0-21swapper/120:50:141
81530rcu_preempt0-21swapper/019:36:280
81530rcu_preempt0-21swapper/019:34:280
81520rcu_preempt0-21swapper/023:21:140
81520rcu_preempt0-21swapper/021:11:570
81520rcu_preempt0-21swapper/020:42:120
81500rcu_preempt12238-21diskstats21:05:050
81490rcu_preempt0-21swapper/121:01:591
81490rcu_preempt0-21swapper/019:55:070
16398994743cyclictest945-21usb-storage20:10:071
81410rcu_preempt0-21swapper/020:45:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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