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2026-11-14 - 02:18
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Fri Nov 13, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81910rcu_preempt26796-21diskmemload12:19:491
81770rcu_preempt3-21ksoftirqd/012:19:380
81750rcu_preempt0-21swapper/107:04:371
81740rcu_preempt9887-21ssh10:39:360
81710rcu_preempt0-21swapper/112:29:411
81710rcu_preempt0-21swapper/010:31:270
81700rcu_preempt0-21swapper/011:12:060
81700rcu_preempt0-21swapper/010:16:100
81700rcu_preempt0-21swapper/009:34:380
81700rcu_preempt0-21swapper/009:15:310
81690rcu_preempt26796-21diskmemload11:39:480
81690rcu_preempt0-21swapper/009:29:040
81680rcu_preempt4757-21ssh11:30:400
81680rcu_preempt0-21swapper/112:03:291
81680rcu_preempt0-21swapper/111:55:341
81680rcu_preempt0-21swapper/108:29:371
81680rcu_preempt0-21swapper/011:16:290
81680rcu_preempt0-21swapper/010:28:210
89950670irq/17-ehci_hcd11631-1kworker/1:1H08:24:441
81670rcu_preempt2105-21munin-run12:29:221
81670rcu_preempt0-21swapper/112:09:491
81670rcu_preempt0-21swapper/111:43:131
81670rcu_preempt0-21swapper/111:34:371
81670rcu_preempt0-21swapper/012:32:340
89550660irq/17-ehci_hcd3-21ksoftirqd/009:58:320
81660rcu_preempt2805-21munin-run07:34:210
81660rcu_preempt13811-21apt-get11:49:341
81660rcu_preempt0-21swapper/109:21:451
81660rcu_preempt0-21swapper/009:33:200
81650rcu_preempt21883-21sed09:59:431
81650rcu_preempt0-21swapper/111:47:511
81640rcu_preempt1718-21sh12:28:010
81640rcu_preempt0-21swapper/107:44:361
81640rcu_preempt0-21swapper/107:29:221
81640rcu_preempt0-21swapper/012:04:460
81640rcu_preempt0-21swapper/010:00:030
81630rcu_preempt6731-21/usr/sbin/munin07:49:441
81630rcu_preempt14307-21ssh10:47:491
81630rcu_preempt0-21swapper/108:14:221
81630rcu_preempt0-21swapper/012:09:350
81630rcu_preempt0-21swapper/011:01:140
81630rcu_preempt0-21swapper/008:14:410
81620rcu_preempt16103-21ssh10:49:541
81620rcu_preempt0-21swapper/111:02:141
81620rcu_preempt0-21swapper/109:37:271
81620rcu_preempt0-21swapper/108:41:371
81620rcu_preempt0-21swapper/011:50:480
81620rcu_preempt0-21swapper/009:49:350
81620rcu_preempt0-21swapper/007:24:440
81610rcu_preempt31405-21latency_hist07:19:220
81610rcu_preempt27381-21ssh11:12:581
81610rcu_preempt25267-21mailstats08:59:450
81610rcu_preempt21979-21ssh12:04:401
81610rcu_preempt2169-21sendmail-mta07:04:420
81610rcu_preempt0-21swapper/109:49:351
81610rcu_preempt0-21swapper/109:33:011
81610rcu_preempt0-21swapper/109:24:401
81610rcu_preempt0-21swapper/108:34:411
81600rcu_preempt5598-21ssh11:33:371
81600rcu_preempt3585-21ssh10:26:311
81600rcu_preempt31956-21ssh11:20:401
81600rcu_preempt28430-21ssh09:10:411
81600rcu_preempt26796-21diskmemload09:45:030
81600rcu_preempt26108-21ssh10:08:440
81600rcu_preempt0-21swapper/111:24:401
81600rcu_preempt0-21swapper/110:22:271
81600rcu_preempt0-21swapper/109:54:451
81600rcu_preempt0-21swapper/107:34:451
81600rcu_preempt0-21swapper/107:19:401
81600rcu_preempt0-21swapper/011:04:430
81590rcu_preempt7453-21ssh11:35:560
81590rcu_preempt5852-21ssh12:34:471
81590rcu_preempt30427-21ssh10:15:431
81590rcu_preempt28106-21ssh12:15:300
81590rcu_preempt26796-21diskmemload12:36:060
81590rcu_preempt23710-21ssh11:04:451
81590rcu_preempt17463-21ssh10:54:281
81590rcu_preempt0-21swapper/110:35:541
81590rcu_preempt0-21swapper/110:04:501
81590rcu_preempt0-21swapper/109:47:381
81590rcu_preempt0-21swapper/107:29:271
81590rcu_preempt0-21swapper/107:11:151
81590rcu_preempt0-21swapper/011:58:480
81590rcu_preempt0-21swapper/008:34:360
28821995946cyclictest945-21usb-storage09:14:361
81580rcu_preempt6052-21ssh10:31:221
81580rcu_preempt2930-21ssh11:28:300
81580rcu_preempt28355-21ssh10:12:301
81580rcu_preempt24258-21munin-run08:59:220
81580rcu_preempt1264-21ssh10:22:480
81580rcu_preempt11677-21cut08:09:221
81580rcu_preempt11192-21if_can009:39:391
81580rcu_preempt0-21swapper/110:40:061
81580rcu_preempt0-21swapper/108:53:561
81580rcu_preempt0-21swapper/107:39:221
81580rcu_preempt0-21swapper/011:19:570
81580rcu_preempt0-21swapper/010:49:080
81580rcu_preempt0-21swapper/009:39:430
81570rcu_preempt15719-21ssh10:49:440
81570rcu_preempt0-21swapper/112:18:531
81570rcu_preempt0-21swapper/111:17:101
81570rcu_preempt0-21swapper/010:13:000
81560rcu_preempt5328-21sshd07:44:170
81560rcu_preempt3-21ksoftirqd/008:04:470
81560rcu_preempt28314-21ssh09:10:180
81560rcu_preempt15033-21ntpq08:19:430
81560rcu_preempt0-21swapper/108:14:441
81560rcu_preempt0-21swapper/107:57:441
81560rcu_preempt0-21swapper/107:16:131
81560rcu_preempt0-21swapper/012:01:210
81560rcu_preempt0-21swapper/011:49:040
81560rcu_preempt0-21swapper/008:04:010
81550rcu_preempt0-21swapper/108:58:151
81550rcu_preempt0-21swapper/108:46:441
81550rcu_preempt0-21swapper/010:34:540
81550rcu_preempt0-21swapper/009:19:500
81550rcu_preempt0-21swapper/009:04:520
81550rcu_preempt0-21swapper/008:46:430
81550rcu_preempt0-21swapper/007:49:440
81550rcu_preempt0-21swapper/007:09:380
81540rcu_preempt26778-21sshd09:09:181
81540rcu_preempt0-21swapper/010:55:050
81540rcu_preempt0-21swapper/007:44:370
81530rcu_preempt0-21swapper/109:01:071
81530rcu_preempt0-21swapper/008:26:460
81520rcu_preempt17097-21fw_forwarded_lo08:29:360
81520rcu_preempt0-21swapper/007:59:210
81500rcu_preempt20493-21pluginstate08:44:220
81470rcu_preempt9749-21irqstats07:59:411
28820994743cyclictest945-21usb-storage07:20:340
81460rcu_preempt3670-21ntp_states07:34:440
81460rcu_preempt12044-21fw_conntrack08:09:370
147850450irq/29-eth0-rx-21876-21/usr/sbin/munin08:49:430
28821994340cyclictest945-21usb-storage08:22:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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