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2026-06-20 - 13:35
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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 Sat Jun 20, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811060rcu_preempt3-21ksoftirqd/022:35:560
81880rcu_preempt0-21swapper/119:09:371
81760rcu_preempt0-21swapper/000:32:280
81730rcu_preempt7860-21df20:09:341
81730rcu_preempt16264-21cpuspeed_turbos22:59:341
81720rcu_preempt6954-21ssh23:42:150
81720rcu_preempt0-21swapper/022:04:210
81710rcu_preempt0-21swapper/123:38:211
81700rcu_preempt24040-21diskmemload22:02:161
81700rcu_preempt0-21swapper/100:24:391
81700rcu_preempt0-21swapper/021:47:320
81690rcu_preempt19-21ksoftirqd/121:22:291
81690rcu_preempt0-21swapper/023:55:400
81690rcu_preempt0-21swapper/023:49:310
81690rcu_preempt0-21swapper/021:28:460
81680rcu_preempt12516-21ssh21:50:481
81680rcu_preempt0-21swapper/100:34:061
81670rcu_preempt31572-21ssh23:27:541
81670rcu_preempt0-21swapper/123:44:461
81670rcu_preempt0-21swapper/122:10:071
81670rcu_preempt0-21swapper/121:24:381
81670rcu_preempt0-21swapper/023:07:440
81670rcu_preempt0-21swapper/000:43:300
81660rcu_preempt21073-21latency_hist00:09:211
81660rcu_preempt12191-21users21:49:470
81660rcu_preempt0-21swapper/122:34:341
81660rcu_preempt0-21swapper/022:19:310
81650rcu_preempt13089-21apt-get23:54:301
81650rcu_preempt11375-21tr20:24:201
81650rcu_preempt0-21swapper/122:19:181
81650rcu_preempt0-21swapper/121:57:351
81650rcu_preempt0-21swapper/100:39:231
89150640irq/17-ehci_hcd945-21usb-storage00:23:011
81640rcu_preempt24289-21munin-run22:14:210
81640rcu_preempt1533-21ssh23:31:551
81640rcu_preempt0-21swapper/123:07:511
81640rcu_preempt0-21swapper/120:29:051
81640rcu_preempt0-21swapper/119:24:371
81640rcu_preempt0-21swapper/022:56:150
81640rcu_preempt0-21swapper/021:54:390
81640rcu_preempt0-21swapper/021:35:050
81640rcu_preempt0-21swapper/019:14:140
81630rcu_preempt8762-21ssh22:44:390
81630rcu_preempt13856-21vmstat20:29:471
81630rcu_preempt0-21swapper/123:19:451
81630rcu_preempt0-21swapper/122:49:401
81630rcu_preempt0-21swapper/122:34:171
81630rcu_preempt0-21swapper/119:29:591
81630rcu_preempt0-21swapper/023:48:020
81630rcu_preempt0-21swapper/023:25:370
81620rcu_preempt29206-21ssh22:22:481
81620rcu_preempt2567-21ssh21:33:461
81620rcu_preempt24040-21diskmemload23:41:001
81620rcu_preempt20727-21ssh22:06:371
81620rcu_preempt11741-21ssh23:50:081
81620rcu_preempt0-21swapper/121:47:461
81610rcu_preempt4216-21ssh21:35:051
81610rcu_preempt32152-21ssh22:28:311
81610rcu_preempt3-21ksoftirqd/000:05:470
81610rcu_preempt0-21swapper/122:40:261
81610rcu_preempt0-21swapper/120:39:441
81610rcu_preempt0-21swapper/100:13:461
81610rcu_preempt0-21swapper/023:19:370
81610rcu_preempt0-21swapper/023:09:300
81610rcu_preempt0-21swapper/022:53:250
81610rcu_preempt0-21swapper/020:11:260
81610rcu_preempt0-21swapper/000:24:340
81610rcu_preempt0-21swapper/000:19:370
81610rcu_preempt0-21swapper/000:19:030
81600rcu_preempt3-21ksoftirqd/023:33:270
81600rcu_preempt24487-21idleruntime23:14:360
81600rcu_preempt24040-21diskmemload00:12:410
81600rcu_preempt1980-21switchtime00:34:460
81600rcu_preempt0-21swapper/122:54:451
81600rcu_preempt0-21swapper/100:17:061
81600rcu_preempt0-21swapper/020:54:290
81600rcu_preempt0-21swapper/020:27:550
81590rcu_preempt26105-21ssh23:17:271
81590rcu_preempt25753-21ssh21:15:501
81590rcu_preempt2373-21cat19:44:450
81590rcu_preempt23640-21ntp_states21:09:441
81590rcu_preempt17221-21ssh00:00:371
81590rcu_preempt10544-21ssh22:49:121
81590rcu_preempt0-21swapper/121:40:391
81590rcu_preempt0-21swapper/120:59:441
81590rcu_preempt0-21swapper/119:50:041
81590rcu_preempt0-21swapper/023:34:480
81590rcu_preempt0-21swapper/022:39:320
81590rcu_preempt0-21swapper/022:33:230
81590rcu_preempt0-21swapper/021:19:360
81590rcu_preempt0-21swapper/021:18:220
81580rcu_preempt7688-21ssh21:42:220
81580rcu_preempt22950-21cpu21:09:330
81580rcu_preempt22738-21users21:04:471
81580rcu_preempt0-21swapper/120:49:391
81580rcu_preempt0-21swapper/120:18:561
81580rcu_preempt0-21swapper/100:36:211
81580rcu_preempt0-21swapper/021:32:500
81570rcu_preempt19339-21fw_forwarded_lo20:54:351
81570rcu_preempt0-21swapper/123:13:261
81570rcu_preempt0-21swapper/119:56:421
81570rcu_preempt0-21swapper/119:34:391
81570rcu_preempt0-21swapper/020:23:560
81570rcu_preempt0-21swapper/020:14:390
81560rcu_preempt20668-21ssh22:06:270
81560rcu_preempt17081-21ssh00:00:070
81560rcu_preempt0-21swapper/120:44:451
81560rcu_preempt0-21swapper/120:35:491
81560rcu_preempt0-21swapper/020:34:200
81560rcu_preempt0-21swapper/019:49:380
81560rcu_preempt0-21swapper/019:25:030
81560rcu_preempt0-21swapper/019:21:380
146550560irq/30-eth0-tx-41ktimersoftd/022:18:510
81550rcu_preempt0-21swapper/119:18:031
81550rcu_preempt0-21swapper/022:26:370
81550rcu_preempt0-21swapper/021:05:120
81550rcu_preempt0-21swapper/020:04:410
81540rcu_preempt0-21swapper/020:52:140
81540rcu_preempt0-21swapper/020:29:440
81540rcu_preempt0-21swapper/019:55:110
81530rcu_preempt0-21swapper/120:08:271
81530rcu_preempt0-21swapper/119:43:331
81530rcu_preempt0-21swapper/022:59:380
81530rcu_preempt0-21swapper/020:59:310
81530rcu_preempt0-21swapper/020:44:330
81530rcu_preempt0-21swapper/019:59:470
81530rcu_preempt0-21swapper/019:34:470
81520rcu_preempt0-21swapper/020:39:560
81510rcu_preempt26851-21cut19:14:390
81500rcu_preempt945-21usb-storage19:44:371
81470rcu_preempt5456-21fw_conntrack19:59:361
81460rcu_preempt32654-21df19:39:320
26070994542cyclictest945-21usb-storage19:34:200
146550410irq/30-eth0-tx-27802-21/usr/sbin/munin19:19:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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