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2026-03-12 - 04:22
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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 Thu Mar 12, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
894501070irq/17-ehci_hcd29218-21diskstats19:09:140
811060rcu_preempt19-21ksoftirqd/100:29:161
81800rcu_preempt23670-21ps22:04:241
81780rcu_preempt0-21swapper/119:24:141
81770rcu_preempt5041-21sh23:32:531
81770rcu_preempt4461-21/usr/sbin/munin22:29:251
81760rcu_preempt15751-21/usr/sbin/munin23:54:001
81750rcu_preempt32558-21latency_hist23:24:001
81750rcu_preempt0-21swapper/123:38:251
81750rcu_preempt0-21swapper/000:03:470
81730rcu_preempt7576-21ntp_states21:34:231
81730rcu_preempt26913-21ssh22:10:021
81730rcu_preempt0-21swapper/123:55:401
81730rcu_preempt0-21swapper/000:29:000
81720rcu_preempt0-21swapper/119:14:221
81710rcu_preempt32543-21ssh22:21:460
81710rcu_preempt0-21swapper/122:49:141
81710rcu_preempt0-21swapper/022:50:150
81700rcu_preempt3586-21ssh22:29:050
81700rcu_preempt0-21swapper/022:10:150
81700rcu_preempt0-21swapper/019:44:230
81670rcu_preempt3013-21ssh00:32:210
81670rcu_preempt28085-21diskmemload22:28:490
81660rcu_preempt0-21swapper/023:54:040
89450650irq/17-ehci_hcd8770-21rm21:37:000
81650rcu_preempt30262-21sshd23:19:170
81650rcu_preempt29541-21memory19:09:181
81650rcu_preempt19-21ksoftirqd/122:37:161
81650rcu_preempt13011-21apt-get20:14:120
81650rcu_preempt0-21swapper/022:14:100
89450640irq/17-ehci_hcd8673-21missed_timers23:39:200
81640rcu_preempt15149-21ssh21:49:150
147950640irq/31-eth0-tx-181ktimersoftd/123:15:471
81630rcu_preempt23878-21proc_pri20:54:220
81630rcu_preempt0-21swapper/000:39:170
81620rcu_preempt9174-21grep19:59:000
81620rcu_preempt3160-21ssh21:26:000
81620rcu_preempt0-21swapper/019:39:080
81610rcu_preempt19-21ksoftirqd/122:59:121
81610rcu_preempt12899-21latency_hist20:13:590
81610rcu_preempt0-21swapper/021:32:120
81610rcu_preempt0-21swapper/000:14:150
89850600irq/17-ehci_hcd342-21sed23:24:130
81600rcu_preempt0-21swapper/023:34:500
81600rcu_preempt0-21swapper/022:59:020
81600rcu_preempt0-21swapper/021:59:260
81600rcu_preempt0-21swapper/021:54:090
81590rcu_preempt5970-21ssh00:38:160
81590rcu_preempt14566-21ssh21:48:360
81590rcu_preempt0-21swapper/020:29:200
81580rcu_preempt4972-21ssh23:32:380
81580rcu_preempt29781-21munin-run23:18:590
81580rcu_preempt22502-21ssh00:04:280
81580rcu_preempt0-21swapper/023:11:190
81580rcu_preempt0-21swapper/022:07:560
81570rcu_preempt29894-21ssh00:21:540
81570rcu_preempt20292-21switchtime20:39:240
81570rcu_preempt0-21swapper/023:51:160
81570rcu_preempt0-21swapper/023:08:410
81570rcu_preempt0-21swapper/022:44:170
81570rcu_preempt0-21swapper/021:04:110
89450560irq/17-ehci_hcd0-21swapper/121:39:251
81560rcu_preempt7423-21ntpq19:49:220
81560rcu_preempt607-21ssh21:22:010
81560rcu_preempt19-21ksoftirqd/123:09:171
81560rcu_preempt0-21swapper/022:56:290
81560rcu_preempt0-21swapper/022:40:110
81560rcu_preempt0-21swapper/020:44:110
81560rcu_preempt0-21swapper/019:24:140
89850550irq/17-ehci_hcd945-21usb-storage22:47:271
89850550irq/17-ehci_hcd945-21usb-storage21:09:211
81550rcu_preempt29815-21ssh21:15:370
81550rcu_preempt19-21ksoftirqd/100:01:081
81550rcu_preempt0-21swapper/023:45:070
81550rcu_preempt0-21swapper/023:45:070
81550rcu_preempt0-21swapper/022:37:280
81550rcu_preempt0-21swapper/019:34:170
81550rcu_preempt0-21swapper/019:29:210
81550rcu_preempt0-21swapper/019:16:400
81540rcu_preempt19-21ksoftirqd/122:18:221
81540rcu_preempt0-21swapper/120:57:271
81540rcu_preempt0-21swapper/119:59:031
81540rcu_preempt0-21swapper/119:58:541
81540rcu_preempt0-21swapper/021:39:360
81540rcu_preempt0-21swapper/020:06:170
81540rcu_preempt0-21swapper/000:09:570
89850530irq/17-ehci_hcd945-21usb-storage21:19:251
89850530irq/17-ehci_hcd945-21usb-storage00:05:131
89850530irq/17-ehci_hcd0-21swapper/122:42:141
81530rcu_preempt27732-21ps21:09:240
81530rcu_preempt19-21ksoftirqd/123:04:201
81530rcu_preempt19-21ksoftirqd/122:24:001
81530rcu_preempt16675-21munin-run20:28:590
81530rcu_preempt0-21swapper/020:59:210
81530rcu_preempt0-21swapper/020:38:170
30100995349cyclictest29511-21kworker/1:022:19:321
30100995348cyclictest21699-21kworker/1:220:49:561
81520rcu_preempt0-21swapper/120:14:551
81520rcu_preempt0-21swapper/019:58:500
81510rcu_preempt19-21ksoftirqd/123:19:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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