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2026-08-18 - 03:49
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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 Tue Aug 18, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81890rcu_preempt30796-21ssh23:08:550
81750rcu_preempt9090-21strings19:19:371
81750rcu_preempt32503-21kernelversion00:14:391
81750rcu_preempt1452-21ssh23:14:311
81750rcu_preempt0-21swapper/100:29:351
81740rcu_preempt8362-21ssh23:27:510
81740rcu_preempt24577-21ssh23:59:311
81740rcu_preempt16889-21munin-run21:39:160
81730rcu_preempt0-21swapper/019:34:360
81710rcu_preempt9407-21ssh00:34:590
81710rcu_preempt0-21swapper/123:54:341
81710rcu_preempt0-21swapper/123:49:111
81710rcu_preempt0-21swapper/023:29:360
81710rcu_preempt0-21swapper/022:29:430
81700rcu_preempt14615-21munin-run19:44:151
81700rcu_preempt0-21swapper/119:14:361
81700rcu_preempt0-21swapper/022:24:450
81690rcu_preempt6293-21diskmemload21:46:200
81690rcu_preempt4252-21if_wlan023:19:370
81690rcu_preempt30652-21sh23:08:271
81690rcu_preempt0-21swapper/123:29:411
81690rcu_preempt0-21swapper/100:45:491
81680rcu_preempt19-21ksoftirqd/122:49:331
81680rcu_preempt0-21swapper/120:39:311
81670rcu_preempt9432-21df21:24:311
81670rcu_preempt5233-21munin-run22:19:161
81670rcu_preempt4940-21kworker/0:219:14:450
81670rcu_preempt0-21swapper/121:30:591
81670rcu_preempt0-21swapper/100:35:251
81670rcu_preempt0-21swapper/021:24:100
81660rcu_preempt9901-21sshd19:24:291
81660rcu_preempt6293-21diskmemload23:16:530
81660rcu_preempt10517-21ssh21:25:000
81660rcu_preempt10510-21/usr/sbin/munin00:39:321
81660rcu_preempt0-21swapper/123:28:381
81660rcu_preempt0-21swapper/123:03:131
81660rcu_preempt0-21swapper/122:21:421
81660rcu_preempt0-21swapper/121:45:591
146650660irq/31-eth0-tx-3-21ksoftirqd/023:36:340
81650rcu_preempt27929-21if_err_eth121:59:330
81650rcu_preempt13144-21sh22:34:301
81650rcu_preempt0-21swapper/123:52:251
81640rcu_preempt3-21ksoftirqd/022:47:260
81640rcu_preempt0-21swapper/022:59:410
81640rcu_preempt0-21swapper/022:14:100
81640rcu_preempt0-21swapper/021:29:280
81630rcu_preempt4024-21expr21:09:321
81630rcu_preempt0-21swapper/123:34:421
81630rcu_preempt0-21swapper/122:24:341
81630rcu_preempt0-21swapper/121:20:521
81630rcu_preempt0-21swapper/022:54:430
81630rcu_preempt0-21swapper/019:44:400
81630rcu_preempt0-21swapper/000:07:210
81620rcu_preempt25607-21ntpq20:24:391
81620rcu_preempt25417-21ssh22:58:151
81620rcu_preempt19554-21munin-run21:44:160
81620rcu_preempt0-21swapper/122:29:351
81620rcu_preempt0-21swapper/119:59:391
81620rcu_preempt0-21swapper/100:14:021
81620rcu_preempt0-21swapper/023:54:400
81610rcu_preempt3-21ksoftirqd/022:43:520
81610rcu_preempt17356-21ssh21:39:321
81610rcu_preempt16573-21rt-features22:39:421
81610rcu_preempt15783-21timerwakeupswit19:44:411
81610rcu_preempt0-21swapper/019:24:390
146650610irq/31-eth0-tx-0-21swapper/023:43:140
81600rcu_preempt889-21ssh00:15:380
81600rcu_preempt31560-21if_eth023:09:360
81600rcu_preempt28421-21ssh00:06:311
81600rcu_preempt20415-21ssh22:48:421
81600rcu_preempt15768-21ssh21:34:561
81600rcu_preempt10510-21/usr/sbin/munin00:39:410
81600rcu_preempt0-21swapper/123:39:321
81600rcu_preempt0-21swapper/122:04:471
81600rcu_preempt0-21swapper/121:18:551
81600rcu_preempt0-21swapper/120:54:301
81600rcu_preempt0-21swapper/119:29:291
81600rcu_preempt0-21swapper/020:54:360
81590rcu_preempt6293-21diskmemload23:46:170
81590rcu_preempt6293-21diskmemload00:48:550
81590rcu_preempt3992-21sed23:19:321
81590rcu_preempt20861-21ssh22:49:310
81590rcu_preempt0-21swapper/122:13:051
81590rcu_preempt0-21swapper/121:04:401
81590rcu_preempt0-21swapper/120:38:191
81590rcu_preempt0-21swapper/119:49:371
81590rcu_preempt0-21swapper/119:36:561
81590rcu_preempt0-21swapper/100:19:341
81590rcu_preempt0-21swapper/022:06:160
81590rcu_preempt0-21swapper/019:59:280
81580rcu_preempt6891-21sh22:20:490
81580rcu_preempt374-21ssh23:12:041
81580rcu_preempt25701-21ssh21:54:400
81580rcu_preempt22192-21munin-run20:14:160
81580rcu_preempt18385-21sshd19:55:301
81580rcu_preempt0-21swapper/121:51:191
81580rcu_preempt0-21swapper/120:44:371
81580rcu_preempt0-21swapper/120:29:381
81580rcu_preempt0-21swapper/100:26:581
81580rcu_preempt0-21swapper/023:49:410
81580rcu_preempt0-21swapper/021:51:410
81580rcu_preempt0-21swapper/020:39:350
81570rcu_preempt28776-21ssh22:00:021
81570rcu_preempt2874-21df_abs21:04:320
81570rcu_preempt0-21swapper/121:54:391
81570rcu_preempt0-21swapper/022:34:340
81560rcu_preempt30961-21ssh00:11:200
81560rcu_preempt25695-21ssh00:00:240
81560rcu_preempt0-21swapper/120:19:321
81560rcu_preempt0-21swapper/120:09:311
81560rcu_preempt0-21swapper/000:33:370
81550rcu_preempt0-21swapper/120:50:051
81550rcu_preempt0-21swapper/022:17:350
81550rcu_preempt0-21swapper/020:14:410
81540rcu_preempt5358-21ssh00:26:300
81540rcu_preempt3594-21ssh00:23:020
81540rcu_preempt24423-21ps20:19:410
81540rcu_preempt0-21swapper/020:45:430
81530rcu_preempt5421-21diskstats21:14:320
81530rcu_preempt17538-21diskstats19:54:300
81530rcu_preempt0-21swapper/020:29:150
81530rcu_preempt0-21swapper/019:50:040
81520rcu_preempt0-21swapper/021:00:540
81510rcu_preempt0-21swapper/020:52:080
8313995047cyclictest945-21usb-storage20:30:050
81490rcu_preempt9162-21ntp_states19:19:390
81480rcu_preempt4640-21ntp_states21:09:410
8314994743cyclictest945-21usb-storage20:59:381
81470rcu_preempt11126-21df19:29:290
81440rcu_preempt27930-21irqstats20:34:370
146550440irq/30-eth0-tx-0-21swapper/019:39:290
81420rcu_preempt0-21swapper/020:06:130
8314994138cyclictest945-21usb-storage20:15:321
89950370irq/17-ehci_hcd0-21swapper/120:04:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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