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2026-06-10 - 23:26
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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 Jun 10, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt22610-1kworker/1:2H12:23:481
81750rcu_preempt19-21ksoftirqd/109:45:241
146650750irq/31-eth0-tx-181ktimersoftd/110:48:261
81740rcu_preempt24055-21ntp_states11:13:540
81720rcu_preempt23238-21head09:13:520
146650720irq/31-eth0-tx-0-21swapper/112:33:271
146650720irq/31-eth0-tx-0-21swapper/112:33:271
81710rcu_preempt0-21swapper/008:53:320
81710rcu_preempt0-21swapper/008:28:570
81700rcu_preempt0-21swapper/007:38:570
81690rcu_preempt3035-21ssh11:35:050
81690rcu_preempt0-21swapper/107:08:451
81690rcu_preempt0-21swapper/012:21:010
81680rcu_preempt16373-21ssh10:59:250
81680rcu_preempt0-21swapper/012:38:200
81680rcu_preempt0-21swapper/009:49:150
81680rcu_preempt0-21swapper/009:35:280
81670rcu_preempt7769-21ntp_states10:43:550
81670rcu_preempt0-21swapper/112:18:401
81670rcu_preempt0-21swapper/010:35:060
81660rcu_preempt22543-21ssh11:11:341
81660rcu_preempt21470-21sed09:08:451
81660rcu_preempt0-21swapper/111:40:061
81660rcu_preempt0-21swapper/012:41:200
81660rcu_preempt0-21swapper/009:27:230
81650rcu_preempt0-21swapper/110:00:391
89550640irq/17-ehci_hcd18517-21/usr/sbin/munin08:53:560
81640rcu_preempt0-21swapper/112:35:201
81640rcu_preempt0-21swapper/112:18:191
146550640irq/30-eth0-tx-0-21swapper/009:28:330
81630rcu_preempt7557-21http_loadtime08:13:480
81630rcu_preempt12293-21munin-run11:53:320
81630rcu_preempt0-21swapper/011:11:530
89950620irq/17-ehci_hcd945-21usb-storage10:10:541
81620rcu_preempt2872-21ssh09:34:441
81620rcu_preempt24763-21ssh10:15:141
81620rcu_preempt23594-21fw_forwarded_lo12:13:490
81620rcu_preempt21907-21ssh12:09:371
81620rcu_preempt20056-21sh10:07:320
81620rcu_preempt14038-21ssh09:55:291
81620rcu_preempt10736-21python11:48:581
81620rcu_preempt0-21swapper/110:58:421
81620rcu_preempt0-21swapper/108:23:451
81620rcu_preempt0-21swapper/107:23:021
81620rcu_preempt0-21swapper/010:53:450
81610rcu_preempt6663-21ssh10:43:081
81610rcu_preempt29144-21if_eth010:23:500
81610rcu_preempt21962-21kworker/0:007:08:520
81610rcu_preempt19511-21ssh10:05:431
81610rcu_preempt13263-21ntp_states11:53:550
81610rcu_preempt0-21swapper/111:54:071
81610rcu_preempt0-21swapper/111:33:521
81610rcu_preempt0-21swapper/110:51:141
81610rcu_preempt0-21swapper/011:59:340
81610rcu_preempt0-21swapper/011:46:560
81610rcu_preempt0-21swapper/009:42:590
89950600irq/17-ehci_hcd19396-21ssh12:05:181
81600rcu_preempt27713-21ssh09:22:140
81600rcu_preempt19870-21ssh11:06:521
81600rcu_preempt1621-21ssh10:33:451
81600rcu_preempt0-21swapper/112:00:331
81600rcu_preempt0-21swapper/110:26:021
81600rcu_preempt0-21swapper/109:26:441
81600rcu_preempt0-21swapper/109:16:521
81600rcu_preempt0-21swapper/012:28:390
81600rcu_preempt0-21swapper/012:28:390
81600rcu_preempt0-21swapper/009:54:550
81590rcu_preempt9346-21ssh11:47:521
81590rcu_preempt30681-21munin-run07:38:320
81590rcu_preempt27229-21ssh10:19:311
81590rcu_preempt26673-21ssh09:19:071
81590rcu_preempt24555-21ssh11:14:211
81590rcu_preempt19227-21ssh11:04:480
81590rcu_preempt1265-21ssh10:33:091
81590rcu_preempt0-21swapper/111:31:451
81590rcu_preempt0-21swapper/109:48:581
81590rcu_preempt0-21swapper/109:39:511
81590rcu_preempt0-21swapper/108:51:481
81590rcu_preempt0-21swapper/107:38:491
81590rcu_preempt0-21swapper/012:03:510
81590rcu_preempt0-21swapper/011:40:360
81590rcu_preempt0-21swapper/008:18:570
81580rcu_preempt32488-21ssh10:29:030
81580rcu_preempt30516-21ssh11:26:231
81580rcu_preempt25917-21df_abs07:18:440
81580rcu_preempt25892-21ssh11:18:401
81580rcu_preempt0-21swapper/109:29:091
81580rcu_preempt0-21swapper/108:42:061
81580rcu_preempt0-21swapper/108:28:441
81580rcu_preempt0-21swapper/107:55:381
81580rcu_preempt0-21swapper/107:13:471
81580rcu_preempt0-21swapper/008:58:560
81570rcu_preempt30021-21modprobe07:33:501
81570rcu_preempt0-21swapper/112:43:201
81570rcu_preempt0-21swapper/110:56:361
81570rcu_preempt0-21swapper/108:35:061
81570rcu_preempt0-21swapper/108:04:521
81570rcu_preempt0-21swapper/107:29:311
81570rcu_preempt0-21swapper/107:24:551
81570rcu_preempt0-21swapper/011:28:420
81570rcu_preempt0-21swapper/010:08:570
81570rcu_preempt0-21swapper/009:59:010
81570rcu_preempt0-21swapper/008:34:010
81570rcu_preempt0-21swapper/008:10:050
81560rcu_preempt8111-21ssh09:44:190
81560rcu_preempt22359-21diskmemload12:27:200
81560rcu_preempt20526-21ssh12:08:360
81560rcu_preempt10599-21ps08:23:550
81560rcu_preempt0-21swapper/007:53:550
81550rcu_preempt0-21swapper/108:14:581
81550rcu_preempt0-21swapper/107:45:401
81550rcu_preempt0-21swapper/009:13:040
81550rcu_preempt0-21swapper/008:38:540
81550rcu_preempt0-21swapper/007:43:490
81550rcu_preempt0-21swapper/007:32:470
81540rcu_preempt6795-21awk10:43:320
81540rcu_preempt29882-21ssh11:24:210
81540rcu_preempt24183-21tail10:13:550
81540rcu_preempt0-21swapper/109:04:111
81540rcu_preempt0-21swapper/108:47:321
81540rcu_preempt0-21swapper/108:09:341
81540rcu_preempt0-21swapper/107:58:491
81540rcu_preempt0-21swapper/010:49:050
81540rcu_preempt0-21swapper/010:19:210
81530rcu_preempt27669-21ssh11:21:020
81530rcu_preempt0-21swapper/007:24:060
89950520irq/17-ehci_hcd945-21usb-storage08:59:261
81520rcu_preempt2087-21munin-run07:53:310
81520rcu_preempt0-21swapper/009:06:570
81520rcu_preempt0-21swapper/008:05:050
24374995249cyclictest945-21usb-storage08:21:061
81510rcu_preempt0-21swapper/007:13:550
24374994845cyclictest945-21usb-storage07:51:071
81470rcu_preempt17526-21df08:53:441
24373994440cyclictest945-21usb-storage08:43:410
146650340irq/31-eth0-tx-0-21swapper/007:58:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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