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2026-03-17 - 22:28
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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 Tue Mar 17, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/107:11:371
147950760irq/31-eth0-tx-41ktimersoftd/010:04:540
81720rcu_preempt20601-21sh11:40:020
81710rcu_preempt23819-21sh11:46:470
81710rcu_preempt19727-21ssh11:39:321
81710rcu_preempt0-21swapper/011:14:150
147950710irq/31-eth0-tx-181ktimersoftd/112:21:201
89050700irq/17-ehci_hcd945-21usb-storage09:05:340
81700rcu_preempt7282-21diskmemload11:08:230
81690rcu_preempt6442-1kworker/0:2H10:30:300
81690rcu_preempt0-21swapper/111:37:561
81690rcu_preempt0-21swapper/009:47:030
89850680irq/17-ehci_hcd945-21usb-storage07:13:160
81680rcu_preempt8181-21df_abs12:19:280
81680rcu_preempt0-21swapper/112:34:351
81680rcu_preempt0-21swapper/112:27:471
81680rcu_preempt0-21swapper/110:01:171
81680rcu_preempt0-21swapper/109:51:121
81680rcu_preempt0-21swapper/109:41:421
81680rcu_preempt0-21swapper/108:14:411
81680rcu_preempt0-21swapper/107:43:191
81680rcu_preempt0-21swapper/009:41:420
81680rcu_preempt0-21swapper/009:15:210
81670rcu_preempt702-21ssh11:03:591
81670rcu_preempt14892-1kworker/1:2H09:33:431
81670rcu_preempt0-21swapper/111:28:121
81660rcu_preempt31941-21sh12:02:440
81660rcu_preempt31941-21sh12:02:440
81660rcu_preempt0-21swapper/012:07:080
81660rcu_preempt0-21swapper/009:55:550
81650rcu_preempt19097-21gzip07:49:381
81650rcu_preempt12775-21processes07:24:380
81650rcu_preempt0-21swapper/112:16:291
81650rcu_preempt0-21swapper/107:59:391
81650rcu_preempt0-21swapper/009:31:170
81640rcu_preempt28798-21if_eth108:29:351
81630rcu_preempt2766-21ssh11:06:481
81630rcu_preempt13108-21ssh12:29:211
81630rcu_preempt0-21swapper/010:44:250
81630rcu_preempt0-21swapper/010:25:040
81620rcu_preempt8764-21ssh09:15:041
81620rcu_preempt748-21memory12:04:351
81620rcu_preempt24438-21ssh11:48:581
81620rcu_preempt21810-21ssh10:40:451
81620rcu_preempt21810-21ssh10:40:451
81620rcu_preempt11389-21rm10:21:100
81620rcu_preempt0-21swapper/111:53:531
81620rcu_preempt0-21swapper/110:58:521
81620rcu_preempt0-21swapper/110:30:071
89850610irq/17-ehci_hcd2815-21cpu12:09:291
81610rcu_preempt2223-21munin-run08:54:140
81610rcu_preempt21937-21ssh10:41:090
81610rcu_preempt21937-21ssh10:41:090
81610rcu_preempt0-21swapper/112:04:061
81610rcu_preempt0-21swapper/112:04:061
81610rcu_preempt0-21swapper/111:11:451
81610rcu_preempt0-21swapper/110:48:111
81610rcu_preempt0-21swapper/110:34:381
81610rcu_preempt0-21swapper/110:17:231
81610rcu_preempt0-21swapper/109:37:471
81610rcu_preempt0-21swapper/010:59:290
81610rcu_preempt0-21swapper/009:38:330
81600rcu_preempt9975-21df_abs10:19:291
81600rcu_preempt19733-21df_abs07:54:271
81600rcu_preempt12494-21ssh09:22:461
81600rcu_preempt11840-21sendmail-msp07:24:140
81600rcu_preempt0-21swapper/107:24:271
81600rcu_preempt0-21swapper/010:36:320
81590rcu_preempt25566-21/usr/sbin/munin10:49:321
81590rcu_preempt0-21swapper/112:42:251
81590rcu_preempt0-21swapper/111:57:231
81590rcu_preempt0-21swapper/111:33:141
81590rcu_preempt0-21swapper/110:28:541
81590rcu_preempt0-21swapper/110:11:581
81590rcu_preempt0-21swapper/110:05:591
81590rcu_preempt0-21swapper/109:56:101
81590rcu_preempt0-21swapper/109:44:351
81590rcu_preempt0-21swapper/109:24:431
81590rcu_preempt0-21swapper/109:10:391
81590rcu_preempt0-21swapper/107:29:331
81590rcu_preempt0-21swapper/007:49:390
81580rcu_preempt7891-21ssh11:16:111
81580rcu_preempt7672-21ssh12:18:440
81580rcu_preempt7282-21diskmemload09:23:090
81580rcu_preempt15509-21ssh11:30:140
81580rcu_preempt0-21swapper/108:39:341
81580rcu_preempt0-21swapper/107:44:401
81580rcu_preempt0-21swapper/012:40:150
81580rcu_preempt0-21swapper/012:09:440
81580rcu_preempt0-21swapper/010:03:160
81570rcu_preempt9065-21ssh10:17:190
81570rcu_preempt5280-21ssh11:11:140
81570rcu_preempt25355-21ps08:14:390
81570rcu_preempt0-21swapper/111:19:421
81570rcu_preempt0-21swapper/108:59:501
81570rcu_preempt0-21swapper/108:04:171
81570rcu_preempt0-21swapper/012:35:470
81570rcu_preempt0-21swapper/011:56:010
81570rcu_preempt0-21swapper/011:52:590
81570rcu_preempt0-21swapper/011:28:050
81570rcu_preempt0-21swapper/009:51:160
81570rcu_preempt0-21swapper/008:19:310
81560rcu_preempt4573-21ssh10:09:240
81560rcu_preempt0-21swapper/012:24:360
81560rcu_preempt0-21swapper/010:58:470
81550rcu_preempt32513-21if_can008:44:321
81550rcu_preempt25637-21ssh10:49:270
81550rcu_preempt18714-21ssh11:37:280
81550rcu_preempt0-21swapper/108:54:231
81550rcu_preempt0-21swapper/108:13:091
81550rcu_preempt0-21swapper/107:38:441
81550rcu_preempt0-21swapper/107:22:311
81550rcu_preempt0-21swapper/107:15:251
81550rcu_preempt0-21swapper/012:29:330
81550rcu_preempt0-21swapper/008:39:390
81550rcu_preempt0-21swapper/007:59:400
9298995449cyclictest945-21usb-storage09:04:391
9297995449cyclictest945-21usb-storage07:29:410
81540rcu_preempt0-21swapper/108:19:571
81540rcu_preempt0-21swapper/009:26:530
81540rcu_preempt0-21swapper/008:34:280
81540rcu_preempt0-21swapper/007:39:310
9297995349cyclictest945-21usb-storage08:24:380
9297995348cyclictest945-21usb-storage08:09:310
81530rcu_preempt10315-21ssh11:20:440
81530rcu_preempt0-21swapper/108:53:311
81530rcu_preempt0-21swapper/008:29:560
9297995248cyclictest945-21usb-storage07:16:060
81520rcu_preempt27382-21fw_forwarded_lo08:24:291
81520rcu_preempt0-21swapper/108:36:311
81520rcu_preempt0-21swapper/009:01:030
81520rcu_preempt0-21swapper/008:08:130
81510rcu_preempt15202-21ntp_states07:34:380
81500rcu_preempt0-21swapper/007:54:350
81490rcu_preempt0-21swapper/009:10:350
81480rcu_preempt0-21swapper/008:54:410
81410rcu_preempt0-21swapper/008:44:250
81370rcu_preempt17127-21expr07:44:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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