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2026-01-10 - 17:47
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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 Sat Jan 10, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81970rcu_preempt7925-21ssh12:33:130
81720rcu_preempt0-21swapper/008:06:300
81710rcu_preempt25032-21sh10:07:410
81710rcu_preempt24686-21munin-run12:06:150
81710rcu_preempt17911-21apt-get09:56:260
81710rcu_preempt0-21swapper/011:51:400
81700rcu_preempt0-21swapper/010:36:420
81690rcu_preempt12169-21apt-get08:21:250
81690rcu_preempt0-21swapper/009:48:420
81680rcu_preempt0-21swapper/107:46:301
81670rcu_preempt24937-21apt-get09:11:271
81670rcu_preempt0-21swapper/112:04:471
81670rcu_preempt0-21swapper/011:19:190
81670rcu_preempt0-21swapper/010:47:000
81660rcu_preempt24749-21diskmemload09:44:000
81660rcu_preempt15163-21sh10:49:071
81660rcu_preempt11627-21munin-run12:41:151
81660rcu_preempt0-21swapper/111:21:351
81660rcu_preempt0-21swapper/009:22:320
81660rcu_preempt0-21swapper/007:20:320
81650rcu_preempt31024-21ssh10:19:080
81650rcu_preempt21607-21ssh10:01:411
81650rcu_preempt0-21swapper/012:40:330
81650rcu_preempt0-21swapper/011:34:480
81650rcu_preempt0-21swapper/010:59:160
81650rcu_preempt0-21swapper/010:59:160
81650rcu_preempt0-21swapper/010:28:110
81640rcu_preempt0-21swapper/108:46:321
81640rcu_preempt0-21swapper/009:01:330
81640rcu_preempt0-21swapper/008:41:370
81640rcu_preempt0-21swapper/007:07:540
81630rcu_preempt5737-21ssh12:30:110
81630rcu_preempt0-21swapper/107:06:291
81630rcu_preempt0-21swapper/010:21:370
81630rcu_preempt0-21swapper/007:46:160
81620rcu_preempt8834-21interrupts11:36:330
81620rcu_preempt26586-21ssh10:11:301
81620rcu_preempt0-21swapper/110:26:301
81620rcu_preempt0-21swapper/109:48:231
81620rcu_preempt0-21swapper/109:16:551
81620rcu_preempt0-21swapper/108:36:301
81620rcu_preempt0-21swapper/011:49:040
81620rcu_preempt0-21swapper/008:51:240
81620rcu_preempt0-21swapper/007:40:590
81610rcu_preempt8169-21ssh09:36:460
81610rcu_preempt26631-21ssh10:11:320
81610rcu_preempt22948-21ssh10:04:470
81610rcu_preempt0-21swapper/111:28:581
89850600irq/17-ehci_hcd0-21swapper/111:06:021
81600rcu_preempt6368-21ssh10:32:220
81600rcu_preempt3819-21ssh09:31:081
81600rcu_preempt31499-21ssh10:20:451
81600rcu_preempt29433-21ssh09:17:480
81600rcu_preempt28909-21ssh11:14:050
81600rcu_preempt26780-21ssh09:13:380
81600rcu_preempt1433-21strings12:21:350
81600rcu_preempt0-21swapper/112:13:581
81600rcu_preempt0-21swapper/111:59:591
81600rcu_preempt0-21swapper/109:31:331
89850590irq/17-ehci_hcd945-21usb-storage07:19:391
89850590irq/17-ehci_hcd0-21swapper/108:15:481
81590rcu_preempt26697-21ssh11:10:540
81590rcu_preempt12626-21ssh10:45:010
81590rcu_preempt1207-21ssh10:23:561
81590rcu_preempt11628-21ssh09:44:171
81590rcu_preempt0-21swapper/112:29:371
81590rcu_preempt0-21swapper/111:51:381
81590rcu_preempt0-21swapper/111:13:591
81590rcu_preempt0-21swapper/110:31:421
81590rcu_preempt0-21swapper/011:21:540
81590rcu_preempt0-21swapper/008:14:270
81590rcu_preempt0-21swapper/007:42:280
81580rcu_preempt31660-21ssh12:17:210
81580rcu_preempt12786-21ssh11:43:281
81580rcu_preempt0-21swapper/111:46:341
81580rcu_preempt0-21swapper/111:40:011
81580rcu_preempt0-21swapper/111:16:371
81580rcu_preempt0-21swapper/110:45:331
81580rcu_preempt0-21swapper/109:06:041
81580rcu_preempt0-21swapper/108:06:241
81580rcu_preempt0-21swapper/107:36:331
81580rcu_preempt0-21swapper/012:15:140
81580rcu_preempt0-21swapper/011:57:490
81580rcu_preempt0-21swapper/011:01:400
81580rcu_preempt0-21swapper/009:34:260
147850580irq/30-eth0-tx-945-21usb-storage09:26:360
81570rcu_preempt674-21ssh09:25:431
81570rcu_preempt27069-21ssh12:10:121
81570rcu_preempt26916-1kworker/1:2H09:51:381
81570rcu_preempt26896-21ssh12:09:360
81570rcu_preempt17464-21ssh10:52:520
81570rcu_preempt12674-21ssh11:43:060
81570rcu_preempt0-21swapper/112:21:101
81570rcu_preempt0-21swapper/110:51:321
81570rcu_preempt0-21swapper/110:08:111
81570rcu_preempt0-21swapper/109:39:131
81570rcu_preempt0-21swapper/108:56:311
81570rcu_preempt0-21swapper/108:00:061
81570rcu_preempt0-21swapper/008:58:280
81560rcu_preempt5285-21ntp_states07:51:360
81560rcu_preempt31176-21memory07:26:340
81560rcu_preempt24672-21modprobe11:06:321
81560rcu_preempt0-21swapper/111:00:101
81560rcu_preempt0-21swapper/111:00:101
81560rcu_preempt0-21swapper/108:51:341
81560rcu_preempt0-21swapper/107:42:461
81560rcu_preempt0-21swapper/107:31:241
81560rcu_preempt0-21swapper/009:51:370
81560rcu_preempt0-21swapper/008:36:290
81560rcu_preempt0-21swapper/008:00:050
81560rcu_preempt0-21swapper/007:31:440
81550rcu_preempt9672-21ssh10:39:371
81550rcu_preempt5631-21ssh11:31:231
81550rcu_preempt2535-21ssh12:23:411
81550rcu_preempt20179-21ssh10:00:021
81550rcu_preempt0-21swapper/112:35:551
81550rcu_preempt0-21swapper/108:36:021
81550rcu_preempt0-21swapper/108:16:281
81550rcu_preempt0-21swapper/011:30:250
81540rcu_preempt0-21swapper/108:26:371
81540rcu_preempt0-21swapper/008:48:210
81540rcu_preempt0-21swapper/008:04:210
26670995338cyclictest945-21usb-storage07:27:411
81520rcu_preempt29614-21fw_forwarded_lo07:21:311
81520rcu_preempt27039-21df_inode07:11:291
81520rcu_preempt0-21swapper/108:22:391
81520rcu_preempt0-21swapper/107:53:571
81520rcu_preempt0-21swapper/009:08:280
81510rcu_preempt7245-21df08:01:291
81510rcu_preempt11025-21df08:16:270
81510rcu_preempt0-21swapper/109:06:151
81510rcu_preempt0-21swapper/007:25:420
81500rcu_preempt0-21swapper/007:16:010
26666995047cyclictest945-21usb-storage08:26:320
81480rcu_preempt0-21swapper/108:42:391
81470rcu_preempt15781-21users08:31:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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