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2026-05-22 - 06:14
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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 highest latencies:
System rackcslot3.osadl.org (updated Fri May 22, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt29039-21ssh23:02:570
81780rcu_preempt0-21swapper/121:18:531
146550760irq/30-eth0-tx-3-21ksoftirqd/019:07:240
81750rcu_preempt0-21swapper/123:22:261
81740rcu_preempt31147-21ssh00:07:140
81740rcu_preempt18611-21ssh21:46:220
81720rcu_preempt19-21ksoftirqd/123:19:411
81720rcu_preempt0-21swapper/022:27:080
81710rcu_preempt0-21swapper/021:49:000
81710rcu_preempt0-21swapper/021:17:150
81700rcu_preempt15465-21ssh21:39:560
81690rcu_preempt18806-21sh23:43:580
81690rcu_preempt14843-21/usr/sbin/munin23:37:140
81680rcu_preempt404-21irqstats19:07:191
81680rcu_preempt0-21swapper/023:23:080
89950670irq/17-ehci_hcd7851-21apt-get21:27:051
89550670irq/17-ehci_hcd0-21swapper/023:34:510
81670rcu_preempt9849-21sh00:27:510
81670rcu_preempt3-21ksoftirqd/000:23:340
81670rcu_preempt0-21swapper/122:55:331
81660rcu_preempt0-21swapper/123:55:481
81660rcu_preempt0-21swapper/123:16:291
81660rcu_preempt0-21swapper/122:49:191
81660rcu_preempt0-21swapper/120:48:371
81650rcu_preempt668-21idleruntime22:12:110
81650rcu_preempt24806-21/usr/sbin/munin22:56:540
81650rcu_preempt0-21swapper/023:56:220
81650rcu_preempt0-21swapper/023:49:210
81650rcu_preempt0-21swapper/021:35:240
81640rcu_preempt16401-21latency_hist20:11:540
81640rcu_preempt0-21swapper/022:02:170
81630rcu_preempt4632-21ssh22:18:290
81630rcu_preempt4632-21ssh22:18:290
81630rcu_preempt0-21swapper/100:12:131
81630rcu_preempt0-21swapper/022:57:150
81630rcu_preempt0-21swapper/000:37:140
81630rcu_preempt0-21swapper/000:02:220
81620rcu_preempt7284-21ssh22:22:581
81620rcu_preempt6586-21ssh21:23:001
81620rcu_preempt26208-21ssh22:57:331
81620rcu_preempt10121-21ssh23:27:321
81620rcu_preempt0-21swapper/122:44:301
81620rcu_preempt0-21swapper/122:36:081
81620rcu_preempt0-21swapper/122:16:581
81620rcu_preempt0-21swapper/122:16:581
81620rcu_preempt0-21swapper/100:03:431
81620rcu_preempt0-21swapper/022:24:230
81620rcu_preempt0-21swapper/019:22:260
89950610irq/17-ehci_hcd945-21usb-storage19:13:411
81610rcu_preempt9947-21ssh00:28:091
81610rcu_preempt0-21swapper/123:07:541
81610rcu_preempt0-21swapper/121:52:251
81610rcu_preempt0-21swapper/121:47:121
81610rcu_preempt0-21swapper/121:45:461
81610rcu_preempt0-21swapper/120:39:201
81610rcu_preempt0-21swapper/023:11:260
81610rcu_preempt0-21swapper/021:12:120
81600rcu_preempt5251-21ssh00:20:341
81600rcu_preempt27512-21ssh00:00:591
81600rcu_preempt21204-21ssh23:48:091
81600rcu_preempt19338-21ssh23:45:461
81600rcu_preempt16265-21ssh00:41:201
81600rcu_preempt15296-21ssh21:39:201
81600rcu_preempt0-21swapper/122:41:111
81600rcu_preempt0-21swapper/121:57:001
81600rcu_preempt0-21swapper/120:07:131
81600rcu_preempt0-21swapper/100:25:111
81600rcu_preempt0-21swapper/022:39:400
81600rcu_preempt0-21swapper/021:54:010
81600rcu_preempt0-21swapper/000:34:050
81590rcu_preempt5015-21ssh00:19:480
81590rcu_preempt1591-21ssh21:15:341
81590rcu_preempt15636-21ssh23:38:101
81590rcu_preempt13801-21ssh23:36:071
81590rcu_preempt0-21swapper/122:10:081
81590rcu_preempt0-21swapper/122:02:551
81590rcu_preempt0-21swapper/023:17:200
81590rcu_preempt0-21swapper/020:37:090
81580rcu_preempt613-21df_inode22:12:091
81580rcu_preempt32001-21ssh00:07:571
81580rcu_preempt31522-21/usr/sbin/munin21:11:540
81580rcu_preempt31328-21ssh22:07:390
81580rcu_preempt27427-21ssh00:00:410
81580rcu_preempt2219-21ssh00:14:280
81580rcu_preempt0-21swapper/121:35:201
81580rcu_preempt0-21swapper/120:55:471
81580rcu_preempt0-21swapper/100:32:171
81580rcu_preempt0-21swapper/022:51:110
81580rcu_preempt0-21swapper/021:23:130
81580rcu_preempt0-21swapper/020:17:090
81580rcu_preempt0-21swapper/019:52:130
81570rcu_preempt29449-21ssh23:04:221
81570rcu_preempt29389-21diskstats21:02:091
81570rcu_preempt10863-21ssh22:31:141
81570rcu_preempt0-21swapper/120:42:281
81570rcu_preempt0-21swapper/119:46:211
81570rcu_preempt0-21swapper/021:30:470
81560rcu_preempt8523-21tail19:37:170
81560rcu_preempt19731-21awk20:22:131
81560rcu_preempt11110-21ssh23:30:540
81560rcu_preempt0-21swapper/119:49:001
81560rcu_preempt0-21swapper/119:27:181
81560rcu_preempt0-21swapper/022:32:500
81560rcu_preempt0-21swapper/021:02:190
81560rcu_preempt0-21swapper/020:47:070
81560rcu_preempt0-21swapper/019:46:180
81560rcu_preempt0-21swapper/019:12:130
81550rcu_preempt0-21swapper/120:28:001
81550rcu_preempt0-21swapper/019:32:040
81550rcu_preempt0-21swapper/019:27:090
81540rcu_preempt4089-21diskstats19:22:221
81540rcu_preempt22657-21sshd20:34:070
81540rcu_preempt18367-21ssh22:43:500
81540rcu_preempt0-21swapper/120:17:311
81540rcu_preempt0-21swapper/119:53:401
81540rcu_preempt0-21swapper/119:39:141
81540rcu_preempt0-21swapper/021:00:020
81540rcu_preempt0-21swapper/019:57:110
81530rcu_preempt691-21ssh23:11:590
81530rcu_preempt3664-21sshd19:19:020
81530rcu_preempt17591-21users20:12:181
81530rcu_preempt14716-21ps20:02:160
81530rcu_preempt0-21swapper/021:59:310
81530rcu_preempt0-21swapper/020:56:420
81510rcu_preempt24333-21df_inode20:42:070
81510rcu_preempt19-21ksoftirqd/120:32:131
81510rcu_preempt14663-21ntp_states20:02:141
81510rcu_preempt0-21swapper/020:24:320
81510rcu_preempt0-21swapper/020:13:070
81510rcu_preempt0-21swapper/019:48:220
1121995148cyclictest945-21usb-storage19:35:321
1121995148cyclictest945-21usb-storage19:20:221
1121995047cyclictest945-21usb-storage21:08:041
1121994946cyclictest945-21usb-storage20:00:251
81460rcu_preempt21016-21grep20:27:150
1121994643cyclictest945-21usb-storage20:57:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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