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2026-03-18 - 08:18
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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 Wed Mar 18, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt19-21ksoftirqd/121:19:191
81780rcu_preempt0-21swapper/119:13:521
147850740irq/30-eth0-tx-945-21usb-storage21:54:121
89850700irq/17-ehci_hcd29616-21diskmemload22:18:411
81700rcu_preempt0-21swapper/023:19:350
81700rcu_preempt0-21swapper/023:00:440
81700rcu_preempt0-21swapper/022:10:290
81690rcu_preempt0-21swapper/123:44:411
81690rcu_preempt0-21swapper/122:58:011
81680rcu_preempt0-21swapper/100:21:501
81680rcu_preempt0-21swapper/100:02:211
81680rcu_preempt0-21swapper/023:43:540
81680rcu_preempt0-21swapper/023:26:130
81680rcu_preempt0-21swapper/023:26:130
81670rcu_preempt25083-21sh23:06:271
81670rcu_preempt20709-21munin-run22:59:160
81670rcu_preempt0-21swapper/123:02:331
81670rcu_preempt0-21swapper/100:39:211
81660rcu_preempt8989-21ssh00:40:330
81660rcu_preempt2107-21latency_hist00:29:161
81660rcu_preempt18031-21/usr/sbin/munin22:54:160
81660rcu_preempt0-21swapper/021:41:310
81650rcu_preempt32249-21ssh22:19:260
81650rcu_preempt13282-21ssh22:44:310
81650rcu_preempt0-21swapper/100:11:481
81650rcu_preempt0-21swapper/021:34:380
81640rcu_preempt0-21swapper/123:53:461
81640rcu_preempt0-21swapper/123:40:281
81630rcu_preempt5673-21ssh21:29:250
81630rcu_preempt3-21ksoftirqd/023:54:230
81630rcu_preempt18833-21basename21:54:160
81630rcu_preempt0-21swapper/123:12:551
81630rcu_preempt0-21swapper/020:49:280
81630rcu_preempt0-21swapper/020:29:400
81630rcu_preempt0-21swapper/020:14:370
81630rcu_preempt0-21swapper/019:29:370
81620rcu_preempt5186-21ssh21:27:591
81620rcu_preempt28727-21ssh00:15:461
81620rcu_preempt0-21swapper/122:10:431
81620rcu_preempt0-21swapper/121:14:291
81620rcu_preempt0-21swapper/120:29:331
81610rcu_preempt24579-21munin-run20:54:161
81610rcu_preempt13435-21ssh21:44:101
81610rcu_preempt0-21swapper/123:34:511
81610rcu_preempt0-21swapper/123:14:351
81610rcu_preempt0-21swapper/122:44:341
81610rcu_preempt0-21swapper/121:55:111
81610rcu_preempt0-21swapper/100:37:231
81610rcu_preempt0-21swapper/023:36:010
81610rcu_preempt0-21swapper/021:09:290
81600rcu_preempt9854-21ssh21:35:501
81600rcu_preempt8999-21ssh22:35:061
81600rcu_preempt797-21ssh23:22:191
81600rcu_preempt25758-21ssh22:05:491
81600rcu_preempt2297-21ssh22:24:031
81600rcu_preempt22029-21cron20:44:161
81600rcu_preempt0-21swapper/119:54:311
81600rcu_preempt0-21swapper/119:34:361
81600rcu_preempt0-21swapper/021:25:480
81600rcu_preempt0-21swapper/000:10:450
81590rcu_preempt4790-21ssh22:28:271
81590rcu_preempt29912-21df_inode00:19:310
81590rcu_preempt29616-21diskmemload21:16:260
81590rcu_preempt25168-21ssh23:06:470
81590rcu_preempt1833-21munin-run19:24:161
81590rcu_preempt17589-21if_wlan020:24:341
81590rcu_preempt1267-21ssh00:26:041
81590rcu_preempt0-21swapper/123:30:531
81590rcu_preempt0-21swapper/123:25:241
81590rcu_preempt0-21swapper/123:25:241
81590rcu_preempt0-21swapper/122:43:391
81590rcu_preempt0-21swapper/121:59:391
81590rcu_preempt0-21swapper/121:44:301
81590rcu_preempt0-21swapper/121:32:311
81590rcu_preempt0-21swapper/120:45:001
81590rcu_preempt0-21swapper/120:34:341
81590rcu_preempt0-21swapper/119:46:491
81590rcu_preempt0-21swapper/023:09:430
81590rcu_preempt0-21swapper/019:24:390
81590rcu_preempt0-21swapper/000:35:240
81580rcu_preempt29616-21diskmemload22:40:080
81580rcu_preempt25612-21ssh22:05:220
81580rcu_preempt24265-21ssh00:06:221
81580rcu_preempt24086-21ssh00:05:430
81580rcu_preempt19074-21cpu21:54:290
81580rcu_preempt15348-21kworker/0:019:09:280
81580rcu_preempt13198-21sshd20:07:480
81580rcu_preempt0-21swapper/123:54:331
81580rcu_preempt0-21swapper/122:49:381
81580rcu_preempt0-21swapper/122:30:391
81580rcu_preempt0-21swapper/120:14:391
81580rcu_preempt0-21swapper/120:13:441
81580rcu_preempt0-21swapper/119:29:371
81580rcu_preempt0-21swapper/023:49:220
81580rcu_preempt0-21swapper/023:46:030
81580rcu_preempt0-21swapper/022:15:290
81580rcu_preempt0-21swapper/020:45:040
81580rcu_preempt0-21swapper/020:09:280
81580rcu_preempt0-21swapper/000:25:580
81580rcu_preempt0-21swapper/000:16:270
81570rcu_preempt6479-21ntpq19:39:371
81570rcu_preempt468-21sshd19:18:491
81570rcu_preempt1621-21ssh21:20:140
81570rcu_preempt0-21swapper/023:33:490
81570rcu_preempt0-21swapper/023:15:470
81570rcu_preempt0-21swapper/000:32:380
81570rcu_preempt0-21swapper/000:02:120
81560rcu_preempt7696-21ssh22:34:220
81560rcu_preempt4170-21ssh22:26:080
81560rcu_preempt3-21ksoftirqd/021:46:360
81560rcu_preempt0-21swapper/120:58:271
81560rcu_preempt0-21swapper/119:59:391
81560rcu_preempt0-21swapper/021:59:410
81560rcu_preempt0-21swapper/021:04:420
81560rcu_preempt0-21swapper/019:19:370
81550rcu_preempt28165-21python21:04:421
81550rcu_preempt0-21swapper/119:51:371
81550rcu_preempt0-21swapper/022:30:350
81550rcu_preempt0-21swapper/019:46:530
81550rcu_preempt0-21swapper/019:35:500
81540rcu_preempt21830-21sensors20:39:410
81540rcu_preempt0-21swapper/020:00:320
81520rcu_preempt0-21swapper/020:24:240
81520rcu_preempt0-21swapper/019:41:360
81520rcu_preempt0-21swapper/019:14:520
81510rcu_preempt9220-21python19:49:390
81510rcu_preempt0-21swapper/020:59:350
81510rcu_preempt0-21swapper/020:36:040
31696995147cyclictest945-21usb-storage21:09:351
31696995147cyclictest945-21usb-storage20:19:411
31696994743cyclictest945-21usb-storage19:24:291
81450rcu_preempt16112-21diskstats20:19:310
81440rcu_preempt10277-21ntp_states19:54:370
81430rcu_preempt25431-21ntp_states20:54:380
31696994138cyclictest945-21usb-storage20:04:281
147650390irq/28-eth0-rx-0-21swapper/120:59:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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