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2026-03-18 - 15:12
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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 100 highest latencies:
System rackcslot3.osadl.org (updated Wed Mar 18, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81740rcu_preempt30128-21ntp_states07:09:381
81730rcu_preempt0-21swapper/009:22:580
81710rcu_preempt4860-21df_inode07:39:300
81710rcu_preempt25120-21sh12:10:370
81710rcu_preempt0-21swapper/011:49:320
81710rcu_preempt0-21swapper/011:04:370
81710rcu_preempt0-21swapper/010:29:380
81710rcu_preempt0-21swapper/009:48:450
81700rcu_preempt27801-21irqstats11:14:370
81700rcu_preempt0-21swapper/012:05:320
81690rcu_preempt0-21swapper/010:09:520
81680rcu_preempt0-21swapper/110:59:421
81680rcu_preempt0-21swapper/008:19:350
81670rcu_preempt27094-21munin-run11:14:170
81670rcu_preempt0-21swapper/110:29:401
81660rcu_preempt9642-21open_files10:39:400
81660rcu_preempt0-21swapper/111:27:541
81660rcu_preempt0-21swapper/110:08:131
81660rcu_preempt0-21swapper/010:35:510
89850650irq/17-ehci_hcd4594-21df_abs12:34:321
81650rcu_preempt0-21swapper/112:41:531
81650rcu_preempt0-21swapper/109:28:181
81650rcu_preempt0-21swapper/011:59:160
81650rcu_preempt0-21swapper/011:44:350
81650rcu_preempt0-21swapper/010:48:030
81640rcu_preempt31791-21ssh11:22:181
81640rcu_preempt0-21swapper/110:50:441
81640rcu_preempt0-21swapper/110:47:501
81640rcu_preempt0-21swapper/110:25:211
81640rcu_preempt0-21swapper/109:44:131
81630rcu_preempt31560-21ssh11:21:310
81630rcu_preempt30626-21ssh09:17:041
81630rcu_preempt28691-21ssh12:19:101
81630rcu_preempt25310-21/usr/sbin/munin08:59:370
81630rcu_preempt14418-21ssh09:47:351
81630rcu_preempt0-21swapper/012:24:180
81620rcu_preempt9622-21ssh11:41:541
81620rcu_preempt3428-21ssh12:31:451
81620rcu_preempt19826-21ssh12:00:501
81620rcu_preempt12326-21ssh11:46:541
81620rcu_preempt0-21swapper/112:09:381
81620rcu_preempt0-21swapper/108:59:341
81620rcu_preempt0-21swapper/107:39:041
81620rcu_preempt0-21swapper/009:53:580
81620rcu_preempt0-21swapper/008:49:440
81620rcu_preempt0-21swapper/007:09:420
81610rcu_preempt27728-21ssh10:13:021
81610rcu_preempt26329-21ssh11:11:391
81610rcu_preempt0-21swapper/110:18:181
81610rcu_preempt0-21swapper/109:59:351
81610rcu_preempt0-21swapper/008:04:300
81610rcu_preempt0-21swapper/007:29:280
30548996145cyclictest945-21usb-storage10:36:091
81600rcu_preempt4392-21ssh11:31:221
81600rcu_preempt2583-21munin-run11:29:170
81600rcu_preempt21160-21egrep12:04:311
81600rcu_preempt0-21swapper/110:55:581
81600rcu_preempt0-21swapper/110:43:331
81600rcu_preempt0-21swapper/109:54:371
81600rcu_preempt0-21swapper/109:35:431
81600rcu_preempt0-21swapper/108:34:291
81600rcu_preempt0-21swapper/107:19:421
81600rcu_preempt0-21swapper/012:15:500
81600rcu_preempt0-21swapper/008:54:370
81600rcu_preempt0-21swapper/007:59:300
81600rcu_preempt0-21swapper/007:14:320
147950600irq/31-eth0-tx-41ktimersoftd/010:14:370
81590rcu_preempt7747-21munin-run11:39:170
81590rcu_preempt405-21ssh09:20:131
81590rcu_preempt28627-21ssh11:15:221
81590rcu_preempt0-21swapper/111:49:471
81590rcu_preempt0-21swapper/110:19:431
81590rcu_preempt0-21swapper/109:09:331
81590rcu_preempt0-21swapper/107:39:171
81590rcu_preempt0-21swapper/010:04:330
81590rcu_preempt0-21swapper/009:17:140
81590rcu_preempt0-21swapper/008:44:390
81590rcu_preempt0-21swapper/007:49:300
81580rcu_preempt7420-21ssh11:38:061
81580rcu_preempt4111-21ssh11:30:220
81580rcu_preempt3167-21sshd10:27:500
81580rcu_preempt31208-21ssh12:23:301
81580rcu_preempt23867-21ssh11:07:181
81580rcu_preempt17326-21awk08:29:301
81580rcu_preempt16361-21ssh09:50:061
81580rcu_preempt0-21swapper/112:27:341
81580rcu_preempt0-21swapper/111:55:541
81580rcu_preempt0-21swapper/109:29:301
81580rcu_preempt0-21swapper/011:39:340
81580rcu_preempt0-21swapper/010:22:200
81580rcu_preempt0-21swapper/010:00:490
81580rcu_preempt0-21swapper/009:42:170
81580rcu_preempt0-21swapper/009:25:450
81580rcu_preempt0-21swapper/008:14:390
81570rcu_preempt6700-21ssh12:38:510
81570rcu_preempt0-21swapper/108:19:401
81570rcu_preempt0-21swapper/107:56:181
81570rcu_preempt0-21swapper/012:02:230
81570rcu_preempt0-21swapper/010:54:530
81570rcu_preempt0-21swapper/009:39:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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