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2026-06-16 - 09:51
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Tue Jun 16, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/119:11:531
81750rcu_preempt0-21swapper/022:15:420
89150730irq/17-ehci_hcd4410-21ssh23:31:330
81730rcu_preempt3047-21ssh23:29:201
81720rcu_preempt0-21swapper/123:54:331
81710rcu_preempt28319-21latency_hist19:14:000
81710rcu_preempt0-21swapper/022:24:270
81710rcu_preempt0-21swapper/022:09:160
81700rcu_preempt15599-21diskmemload23:53:200
81690rcu_preempt15475-21uname20:29:190
81690rcu_preempt0-21swapper/000:28:260
81660rcu_preempt22036-21ntpq20:54:200
81660rcu_preempt0-21swapper/122:19:501
81660rcu_preempt0-21swapper/023:39:340
81650rcu_preempt0-21swapper/100:30:161
81650rcu_preempt0-21swapper/000:00:400
81640rcu_preempt5986-21ssh00:35:051
81640rcu_preempt28885-21latency_hist00:19:010
81640rcu_preempt2634-21df_abs21:29:140
81640rcu_preempt0-21swapper/122:57:541
81640rcu_preempt0-21swapper/022:44:240
81630rcu_preempt23549-21ssh00:07:471
81630rcu_preempt2192-21snmpd00:31:450
81630rcu_preempt0-21swapper/119:45:191
81630rcu_preempt0-21swapper/021:20:280
81630rcu_preempt0-21swapper/000:09:180
81620rcu_preempt4105-21ssh21:31:031
81620rcu_preempt0-21swapper/123:37:571
81620rcu_preempt0-21swapper/123:00:311
81620rcu_preempt0-21swapper/121:04:171
81620rcu_preempt0-21swapper/120:33:141
81620rcu_preempt0-21swapper/023:58:420
81620rcu_preempt0-21swapper/022:21:560
81620rcu_preempt0-21swapper/022:01:170
81620rcu_preempt0-21swapper/000:38:170
81620rcu_preempt0-21swapper/000:14:010
89950610irq/17-ehci_hcd0-21swapper/121:58:341
89950610irq/17-ehci_hcd0-21swapper/100:11:111
81610rcu_preempt27796-21ssh21:14:581
81610rcu_preempt25819-21ssh23:11:021
81610rcu_preempt23048-21ssh22:05:171
81610rcu_preempt20954-21ssh00:03:011
81610rcu_preempt19902-21munin-run20:49:000
81610rcu_preempt15599-21ssh21:52:271
81610rcu_preempt14658-21ssh22:49:401
81610rcu_preempt11526-21ssh21:44:230
81610rcu_preempt10570-21ssh23:44:061
81610rcu_preempt0-21swapper/122:44:161
81610rcu_preempt0-21swapper/122:24:201
81610rcu_preempt0-21swapper/023:34:270
81610rcu_preempt0-21swapper/021:34:190
81600rcu_preempt8692-21ssh00:40:031
81600rcu_preempt6688-21ssh22:35:001
81600rcu_preempt26453-21ssh22:12:271
81600rcu_preempt20548-21ssh22:01:151
81600rcu_preempt10520-21ssh21:43:551
81600rcu_preempt0-21swapper/123:49:341
81600rcu_preempt0-21swapper/123:41:281
81600rcu_preempt0-21swapper/123:18:381
81600rcu_preempt0-21swapper/121:44:181
81600rcu_preempt0-21swapper/121:19:171
81600rcu_preempt0-21swapper/120:59:001
81600rcu_preempt0-21swapper/100:19:151
81600rcu_preempt0-21swapper/023:06:120
81600rcu_preempt0-21swapper/019:24:250
81590rcu_preempt9537-21ssh22:40:211
81590rcu_preempt12007-21ssh23:45:180
81590rcu_preempt0-21swapper/123:19:471
81590rcu_preempt0-21swapper/122:15:271
81590rcu_preempt0-21swapper/121:35:211
81590rcu_preempt0-21swapper/121:09:181
81590rcu_preempt0-21swapper/119:57:211
81590rcu_preempt0-21swapper/119:19:191
81590rcu_preempt0-21swapper/100:18:331
81590rcu_preempt0-21swapper/023:12:040
81590rcu_preempt0-21swapper/022:38:520
81580rcu_preempt8404-21ssh22:39:170
81580rcu_preempt27994-21ssh21:15:350
81580rcu_preempt23967-21ssh23:08:591
81580rcu_preempt16782-21ssh21:54:190
81580rcu_preempt0-21swapper/123:24:241
81580rcu_preempt0-21swapper/121:27:541
81580rcu_preempt0-21swapper/120:16:211
81580rcu_preempt0-21swapper/119:53:521
81580rcu_preempt0-21swapper/119:38:551
81580rcu_preempt0-21swapper/119:29:201
81570rcu_preempt8440-21/usr/sbin/munin21:39:180
81570rcu_preempt4002-21ssh22:29:440
81570rcu_preempt18230-21ssh22:57:320
81570rcu_preempt1692-21ssh23:26:520
81570rcu_preempt1090-21ssh00:26:501
81570rcu_preempt0-21swapper/120:49:291
81570rcu_preempt0-21swapper/022:49:140
81570rcu_preempt0-21swapper/021:49:220
81570rcu_preempt0-21swapper/019:29:130
81570rcu_preempt0-21swapper/000:40:030
89550560irq/17-ehci_hcd20925-21ssh23:02:220
81560rcu_preempt4235-21ssh22:30:321
81560rcu_preempt22948-21ssh22:04:580
81560rcu_preempt0-21swapper/120:10:561
81560rcu_preempt0-21swapper/120:00:161
81560rcu_preempt0-21swapper/119:17:351
81560rcu_preempt0-21swapper/023:20:160
81560rcu_preempt0-21swapper/020:09:190
81560rcu_preempt0-21swapper/019:55:210
81560rcu_preempt0-21swapper/000:08:000
81550rcu_preempt29435-21ssh23:18:570
81550rcu_preempt0-21swapper/120:04:321
81550rcu_preempt0-21swapper/119:43:581
81550rcu_preempt0-21swapper/119:27:131
81550rcu_preempt0-21swapper/021:24:230
81540rcu_preempt2192-21snmpd20:25:531
81540rcu_preempt2192-21snmpd20:20:521
81540rcu_preempt0-21swapper/120:42:561
81530rcu_preempt0-21swapper/019:59:240
81530rcu_preempt0-21swapper/019:39:170
81530rcu_preempt0-21swapper/019:37:110
81520rcu_preempt24977-21sshd21:05:200
81520rcu_preempt0-21swapper/020:25:280
81520rcu_preempt0-21swapper/019:19:150
81520rcu_preempt0-21swapper/019:17:280
28288995148cyclictest945-21usb-storage20:57:071
28288995148cyclictest945-21usb-storage20:44:291
81500rcu_preempt0-21swapper/020:34:220
81500rcu_preempt0-21swapper/020:14:220
28288994946cyclictest945-21usb-storage20:39:001
81480rcu_preempt0-21swapper/020:19:150
81460rcu_preempt5617-21ntp_states19:49:210
81460rcu_preempt21174-21users20:49:250
81450rcu_preempt26037-21mailstats21:09:240
81450rcu_preempt0-21swapper/020:07:010
89950370irq/17-ehci_hcd0-21swapper/021:00:300
146550370irq/30-eth0-tx-3-21ksoftirqd/020:39:150
89950360irq/17-ehci_hcd0-21swapper/019:45:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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