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2026-03-20 - 00:30
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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 Thu Mar 19, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt3718-1kworker/1:0H12:34:311
81720rcu_preempt19-21ksoftirqd/110:02:241
81710rcu_preempt31319-21if_wlan009:59:370
81710rcu_preempt19418-21sshd07:54:400
81710rcu_preempt18620-21apt11:39:320
81710rcu_preempt0-21swapper/010:54:390
81700rcu_preempt27715-21diskmemload11:55:120
81700rcu_preempt0-21swapper/011:19:590
81700rcu_preempt0-21swapper/010:39:400
81700rcu_preempt0-21swapper/010:17:380
81700rcu_preempt0-21swapper/009:14:370
81690rcu_preempt0-21swapper/010:47:200
81690rcu_preempt0-21swapper/010:33:400
81690rcu_preempt0-21swapper/010:24:440
81680rcu_preempt0-21swapper/110:19:491
81680rcu_preempt0-21swapper/012:19:190
81680rcu_preempt0-21swapper/011:34:400
89850670irq/17-ehci_hcd945-21usb-storage09:55:440
81670rcu_preempt3672-21apt-get10:09:310
81670rcu_preempt0-21swapper/011:33:580
81660rcu_preempt26988-21grep08:24:391
81660rcu_preempt0-21swapper/012:08:260
81650rcu_preempt9799-21ssh11:21:301
81650rcu_preempt3-21ksoftirqd/011:06:310
81650rcu_preempt29635-21ssh11:59:410
81650rcu_preempt12506-21apt-get12:29:300
81650rcu_preempt0-21swapper/110:57:031
89850640irq/17-ehci_hcd945-21usb-storage07:43:301
81640rcu_preempt0-21swapper/109:42:591
81640rcu_preempt0-21swapper/107:10:251
81640rcu_preempt0-21swapper/007:09:300
81630rcu_preempt0-21swapper/112:08:181
81630rcu_preempt0-21swapper/110:29:411
81630rcu_preempt0-21swapper/009:50:030
81630rcu_preempt0-21swapper/009:25:120
81620rcu_preempt9501-21ssh10:19:400
81620rcu_preempt3982-21munin-run09:04:190
81620rcu_preempt3920-21ssh12:12:181
81620rcu_preempt29100-21df_abs08:34:330
81620rcu_preempt1668-21ssh11:05:451
81620rcu_preempt0-21swapper/112:19:441
81620rcu_preempt0-21swapper/110:34:351
81620rcu_preempt0-21swapper/008:54:410
81610rcu_preempt30394-21ssh10:59:371
81610rcu_preempt29583-21ssh09:55:471
81610rcu_preempt2505-21ssh10:06:001
81610rcu_preempt21292-21/usr/sbin/munin08:04:320
81610rcu_preempt17510-21ssh11:35:471
81610rcu_preempt0-21swapper/112:39:531
81610rcu_preempt0-21swapper/111:56:521
81610rcu_preempt0-21swapper/109:35:161
89850600irq/17-ehci_hcd945-21usb-storage09:40:530
81600rcu_preempt4304-21ssh11:10:511
81600rcu_preempt25096-21ssh11:49:491
81600rcu_preempt2138-21snmpd09:18:281
81600rcu_preempt14195-21ssh09:27:181
81600rcu_preempt14006-21ssh10:29:131
81600rcu_preempt11400-21ssh09:22:011
81600rcu_preempt0-21swapper/111:42:261
81600rcu_preempt0-21swapper/111:26:321
81600rcu_preempt0-21swapper/111:16:051
81600rcu_preempt0-21swapper/110:49:361
81600rcu_preempt0-21swapper/109:50:131
81600rcu_preempt0-21swapper/107:19:391
81600rcu_preempt0-21swapper/009:46:550
89850590irq/17-ehci_hcd945-21usb-storage08:23:361
81590rcu_preempt6641-21ssh12:17:461
81590rcu_preempt16772-21ssh09:32:190
81590rcu_preempt0-21swapper/112:32:141
81590rcu_preempt0-21swapper/112:29:141
81590rcu_preempt0-21swapper/110:44:211
81590rcu_preempt0-21swapper/108:59:431
81590rcu_preempt0-21swapper/108:43:171
81590rcu_preempt0-21swapper/108:29:361
81590rcu_preempt0-21swapper/108:09:351
81590rcu_preempt0-21swapper/107:50:511
81590rcu_preempt0-21swapper/012:37:350
81590rcu_preempt0-21swapper/009:36:150
81580rcu_preempt6299-21ssh10:14:211
81580rcu_preempt4452-21ntp_states10:09:421
81580rcu_preempt3449-21ssh11:09:390
81580rcu_preempt20929-21ssh10:41:091
81580rcu_preempt0-21swapper/111:44:391
81580rcu_preempt0-21swapper/109:09:451
81580rcu_preempt0-21swapper/011:45:310
81580rcu_preempt0-21swapper/010:34:500
81580rcu_preempt0-21swapper/009:19:330
89850570irq/17-ehci_hcd13582-21df11:29:341
81570rcu_preempt8612-21ssh12:20:190
81570rcu_preempt31206-21ssh10:59:540
81570rcu_preempt18953-21ssh12:39:450
81570rcu_preempt0-21swapper/109:47:141
81570rcu_preempt0-21swapper/107:19:061
81570rcu_preempt0-21swapper/012:12:350
81570rcu_preempt0-21swapper/011:25:130
81570rcu_preempt0-21swapper/008:31:360
81560rcu_preempt12074-21ssh12:28:240
81560rcu_preempt0-21swapper/112:00:461
81560rcu_preempt0-21swapper/108:48:171
81560rcu_preempt0-21swapper/107:54:331
81560rcu_preempt0-21swapper/011:49:530
81560rcu_preempt0-21swapper/011:14:430
81560rcu_preempt0-21swapper/008:49:440
81560rcu_preempt0-21swapper/007:34:410
81550rcu_preempt912-21ssh10:04:220
81550rcu_preempt5388-21apt-get09:09:310
81550rcu_preempt0-21swapper/009:07:050
81550rcu_preempt0-21swapper/008:39:500
81550rcu_preempt0-21swapper/008:25:280
81550rcu_preempt0-21swapper/008:15:440
81550rcu_preempt0-21swapper/007:51:240
81540rcu_preempt22588-21cpu08:09:320
81540rcu_preempt15600-21ntpdc09:29:411
81540rcu_preempt0-21swapper/108:34:371
81540rcu_preempt0-21swapper/107:45:111
81540rcu_preempt0-21swapper/107:26:051
81540rcu_preempt0-21swapper/010:52:310
81540rcu_preempt0-21swapper/008:48:020
81540rcu_preempt0-21swapper/007:24:200
81530rcu_preempt0-21swapper/108:14:341
81530rcu_preempt0-21swapper/108:08:491
81530rcu_preempt0-21swapper/007:44:380
8533995248cyclictest945-21usb-storage07:34:331
8533995248cyclictest19868-21kworker/1:108:02:161
81520rcu_preempt0-21swapper/007:59:440
8532995148cyclictest945-21usb-storage07:16:110
81510rcu_preempt13182-21ntp_states07:29:431
8533995046cyclictest945-21usb-storage08:55:411
81490rcu_preempt0-21swapper/008:24:060
81480rcu_preempt1008-21ntp_states08:49:421
147950440irq/31-eth0-tx-15215-21df_inode07:39:340
8533994138cyclictest945-21usb-storage09:06:141
89850380irq/17-ehci_hcd945-21usb-storage07:34:190
81350rcu_preempt3-21ksoftirqd/007:29:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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