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2026-09-17 - 12:07
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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 all highest latencies:
System rackcslot3.osadl.org (updated Thu Sep 17, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81690rcu_preempt502-21memory21:35:200
81690rcu_preempt31315-21diskmemload22:35:010
81680rcu_preempt18616-21ntp_states21:05:240
81680rcu_preempt10310-21apt-get20:35:110
81680rcu_preempt0-21swapper/022:55:350
81680rcu_preempt0-21swapper/000:20:200
81670rcu_preempt2985-1kworker/0:2H21:29:370
81670rcu_preempt2019-21sh21:38:321
81670rcu_preempt0-21swapper/122:57:091
81660rcu_preempt13570-21ntp_states20:45:230
81660rcu_preempt0-21swapper/122:46:171
81660rcu_preempt0-21swapper/122:08:581
81660rcu_preempt0-21swapper/121:41:501
81660rcu_preempt0-21swapper/023:00:280
81650rcu_preempt8158-21munin-run23:55:000
81650rcu_preempt29330-21uname22:30:191
81650rcu_preempt0-21swapper/122:53:551
81650rcu_preempt0-21swapper/021:21:210
81640rcu_preempt19395-21df_abs21:10:150
81640rcu_preempt0-21swapper/121:50:211
81630rcu_preempt20462-21ssh21:10:441
81630rcu_preempt19854-21apt-get23:15:141
81630rcu_preempt14607-21munin-run23:05:011
81630rcu_preempt0-21swapper/120:00:181
81630rcu_preempt0-21swapper/120:00:181
81620rcu_preempt0-21swapper/123:25:141
81620rcu_preempt0-21swapper/121:30:451
81620rcu_preempt0-21swapper/100:30:101
81620rcu_preempt0-21swapper/023:21:050
81620rcu_preempt0-21swapper/020:13:420
81620rcu_preempt0-21swapper/000:19:120
81610rcu_preempt9289-21ssh23:55:241
81610rcu_preempt0-21swapper/122:44:061
81610rcu_preempt0-21swapper/121:21:121
81610rcu_preempt0-21swapper/119:20:221
89950600irq/17-ehci_hcd945-21usb-storage21:30:430
81600rcu_preempt4473-21ssh23:46:141
81600rcu_preempt31926-21ssh23:37:211
81600rcu_preempt2088-21ssh23:42:031
81600rcu_preempt13061-21ssh00:04:221
81600rcu_preempt0-21swapper/100:10:241
81590rcu_preempt30620-21idleruntime-cro00:40:011
81590rcu_preempt20685-21ssh22:14:351
81590rcu_preempt16165-21ssh23:06:171
81590rcu_preempt0-21swapper/123:24:521
81590rcu_preempt0-21swapper/122:35:441
81590rcu_preempt0-21swapper/122:15:311
81590rcu_preempt0-21swapper/119:42:431
81590rcu_preempt0-21swapper/119:17:291
81590rcu_preempt0-21swapper/023:15:220
81590rcu_preempt0-21swapper/019:45:150
81590rcu_preempt0-21swapper/019:34:550
81590rcu_preempt0-21swapper/019:16:210
81590rcu_preempt0-21swapper/000:39:060
81590rcu_preempt0-21swapper/000:14:360
147750590irq/28-eth0-rx-0-21swapper/119:09:541
81580rcu_preempt18483-21kworker/0:019:05:250
81580rcu_preempt0-21swapper/123:30:171
81580rcu_preempt0-21swapper/123:11:021
81580rcu_preempt0-21swapper/121:56:231
81580rcu_preempt0-21swapper/120:30:221
81580rcu_preempt0-21swapper/120:15:211
81580rcu_preempt0-21swapper/100:29:071
81580rcu_preempt0-21swapper/100:24:351
81580rcu_preempt0-21swapper/100:17:071
81580rcu_preempt0-21swapper/100:09:241
81580rcu_preempt0-21swapper/023:56:410
81580rcu_preempt0-21swapper/022:42:040
81580rcu_preempt0-21swapper/021:56:330
81580rcu_preempt0-21swapper/021:50:370
81580rcu_preempt0-21swapper/000:32:540
81570rcu_preempt6804-21ssh21:47:011
81570rcu_preempt5936-21df_inode23:50:151
81570rcu_preempt5168-21ssh21:45:020
81570rcu_preempt32715-21munin-run23:40:010
81570rcu_preempt27356-21ssh22:25:351
81570rcu_preempt27170-21ssh23:29:100
81570rcu_preempt14559-21ssh22:01:341
81570rcu_preempt12715-21ssh00:03:000
81570rcu_preempt0-21swapper/122:22:061
81570rcu_preempt0-21swapper/121:00:251
81570rcu_preempt0-21swapper/120:25:201
81570rcu_preempt0-21swapper/120:14:031
81570rcu_preempt0-21swapper/119:29:571
81570rcu_preempt0-21swapper/023:31:510
81570rcu_preempt0-21swapper/022:06:520
81570rcu_preempt0-21swapper/021:16:410
81570rcu_preempt0-21swapper/000:29:230
81560rcu_preempt0-21swapper/121:28:371
81560rcu_preempt0-21swapper/120:57:091
81560rcu_preempt0-21swapper/119:46:011
81560rcu_preempt0-21swapper/022:46:360
81560rcu_preempt0-21swapper/019:25:090
81550rcu_preempt8156-21ssh22:50:530
81550rcu_preempt30169-21ssh22:31:110
81550rcu_preempt22798-21ssh22:17:580
81550rcu_preempt0-21swapper/120:22:141
81550rcu_preempt0-21swapper/023:45:200
81550rcu_preempt0-21swapper/023:11:280
81550rcu_preempt0-21swapper/022:10:150
81550rcu_preempt0-21swapper/022:04:130
81550rcu_preempt0-21swapper/020:27:430
81540rcu_preempt2270-21ssh23:42:430
81540rcu_preempt0-21swapper/121:17:311
81540rcu_preempt0-21swapper/120:51:321
81540rcu_preempt0-21swapper/119:56:251
81540rcu_preempt0-21swapper/119:54:141
81540rcu_preempt0-21swapper/020:15:010
81540rcu_preempt0-21swapper/019:50:470
81540rcu_preempt0-21swapper/019:35:200
81540rcu_preempt0-21swapper/019:10:560
81540rcu_preempt0-21swapper/000:05:460
81530rcu_preempt6679-21grep20:20:140
81530rcu_preempt0-21swapper/023:06:290
81530rcu_preempt0-21swapper/022:20:320
81530rcu_preempt0-21swapper/021:44:090
81530rcu_preempt0-21swapper/019:44:040
81520rcu_preempt28294-21ssh22:28:550
81520rcu_preempt26501-21fw_forwarded_lo19:30:171
81520rcu_preempt0-21swapper/119:35:011
81520rcu_preempt0-21swapper/019:24:360
81510rcu_preempt0-21swapper/121:05:301
81500rcu_preempt3324-21memory20:05:190
81500rcu_preempt0-21swapper/119:13:561
81500rcu_preempt0-21swapper/020:58:330
81490rcu_preempt938-21rt-features19:55:230
81490rcu_preempt0-21swapper/020:31:180
81490rcu_preempt0-21swapper/020:05:000
81490rcu_preempt0-21swapper/020:05:000
21053994947cyclictest945-21usb-storage20:35:321
81480rcu_preempt13566-21ntp_states20:45:231
81480rcu_preempt12313-21ntp_states20:40:221
21052994846cyclictest2096-21snmpd20:50:020
81440rcu_preempt12468-21tr20:40:230
21053994037cyclictest945-21usb-storage20:09:251
81330rcu_preempt3-21ksoftirqd/021:00:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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