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2025-12-30 - 22:13
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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 Dec 30, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030rcu_preempt19-21ksoftirqd/111:51:551
81780rcu_preempt25483-21sh10:08:101
81770rcu_preempt7377-21ssh10:32:421
81740rcu_preempt0-21swapper/109:37:371
81720rcu_preempt904-21ssh09:26:111
81720rcu_preempt23295-21diskmemload11:36:041
81720rcu_preempt0-21swapper/110:37:391
81720rcu_preempt0-21swapper/107:41:011
81710rcu_preempt12253-21df_abs08:25:581
81710rcu_preempt0-21swapper/112:13:241
81700rcu_preempt0-21swapper/010:26:110
81690rcu_preempt0-21swapper/111:14:011
81690rcu_preempt0-21swapper/010:11:000
81690rcu_preempt0-21swapper/007:16:040
81680rcu_preempt29463-21df_abs07:25:581
81680rcu_preempt19662-21sh09:58:480
81680rcu_preempt19-21ksoftirqd/110:13:381
81680rcu_preempt0-21swapper/111:27:151
81680rcu_preempt0-21swapper/110:57:441
81680rcu_preempt0-21swapper/107:35:581
81680rcu_preempt0-21swapper/011:44:250
81670rcu_preempt0-21swapper/109:57:301
81670rcu_preempt0-21swapper/011:01:280
81670rcu_preempt0-21swapper/009:32:520
147850670irq/30-eth0-tx-14320-21awk10:45:451
81660rcu_preempt0-21swapper/111:23:451
81660rcu_preempt0-21swapper/010:16:140
81650rcu_preempt9753-21fw_forwarded_lo08:16:020
81650rcu_preempt31090-21latency_hist12:10:451
81650rcu_preempt23677-21python11:56:090
81640rcu_preempt0-21swapper/011:47:240
81640rcu_preempt0-21swapper/011:47:240
81630rcu_preempt0-21swapper/010:09:190
81620rcu_preempt5567-21apt08:00:440
147650620irq/28-eth0-rx-0-21swapper/107:09:361
147650620irq/28-eth0-rx-0-21swapper/107:09:361
81610rcu_preempt0-21swapper/012:36:050
81610rcu_preempt0-21swapper/012:02:380
81610rcu_preempt0-21swapper/011:54:230
81610rcu_preempt0-21swapper/011:29:400
81610rcu_preempt0-21swapper/009:37:470
81600rcu_preempt8035-21if_eth012:26:030
89850590irq/17-ehci_hcd945-21usb-storage12:17:181
81590rcu_preempt10152-21ssh09:41:300
81590rcu_preempt0-21swapper/010:33:250
81590rcu_preempt0-21swapper/010:04:450
81590rcu_preempt0-21swapper/007:36:010
81580rcu_preempt2694-21diskstats11:21:000
81580rcu_preempt0-21swapper/012:18:170
81580rcu_preempt0-21swapper/008:01:080
81580rcu_preempt0-21swapper/007:46:110
81570rcu_preempt8560-21ssh11:31:010
81570rcu_preempt20273-21ssh10:55:520
81570rcu_preempt0-21swapper/012:06:300
81570rcu_preempt0-21swapper/010:38:570
81570rcu_preempt0-21swapper/009:48:200
81570rcu_preempt0-21swapper/008:56:040
89850560irq/17-ehci_hcd945-21usb-storage11:05:061
81560rcu_preempt9351-21munin-run08:15:440
81560rcu_preempt5564-21kworker/0:107:05:580
81560rcu_preempt5564-21kworker/0:107:05:580
81560rcu_preempt0-21swapper/012:25:130
81560rcu_preempt0-21swapper/010:53:450
81560rcu_preempt0-21swapper/010:47:170
81560rcu_preempt0-21swapper/009:28:050
81560rcu_preempt0-21swapper/007:34:120
89850550irq/17-ehci_hcd945-21usb-storage11:42:391
89050550irq/17-ehci_hcd0-21swapper/009:11:300
81550rcu_preempt30794-21ssh11:13:080
81550rcu_preempt0-21swapper/012:31:360
81550rcu_preempt0-21swapper/012:11:120
81550rcu_preempt0-21swapper/011:37:090
81550rcu_preempt0-21swapper/010:42:020
81550rcu_preempt0-21swapper/010:20:550
81550rcu_preempt0-21swapper/008:21:580
81550rcu_preempt0-21swapper/008:06:130
81550rcu_preempt0-21swapper/007:20:570
81540rcu_preempt31946-21ssh11:15:550
81540rcu_preempt18167-21sshd08:49:140
81540rcu_preempt18167-21sshd08:49:140
81540rcu_preempt0-21swapper/112:37:151
81540rcu_preempt0-21swapper/111:49:401
81540rcu_preempt0-21swapper/111:49:401
81540rcu_preempt0-21swapper/108:41:411
81540rcu_preempt0-21swapper/108:31:331
81540rcu_preempt0-21swapper/009:52:150
81540rcu_preempt0-21swapper/009:18:030
81540rcu_preempt0-21swapper/008:36:140
81540rcu_preempt0-21swapper/007:41:080
81530rcu_preempt14774-21apt-get09:50:571
81530rcu_preempt0-21swapper/108:55:471
81530rcu_preempt0-21swapper/108:09:241
81530rcu_preempt0-21swapper/011:09:500
81530rcu_preempt0-21swapper/009:23:290
25323995346cyclictest945-21usb-storage08:19:391
89850520irq/17-ehci_hcd0-21swapper/111:31:031
81520rcu_preempt0-21swapper/009:10:370
81520rcu_preempt0-21swapper/008:30:590
81520rcu_preempt0-21swapper/007:52:410
25323995249cyclictest945-21usb-storage11:10:131
25323995249cyclictest945-21usb-storage10:53:091
25323995249cyclictest945-21usb-storage10:23:561
25323995248cyclictest945-21usb-storage12:03:411
81510rcu_preempt0-21swapper/108:01:131
81510rcu_preempt0-21swapper/009:00:480
81510rcu_preempt0-21swapper/008:45:170
25323995148cyclictest945-21usb-storage12:21:211
25323995148cyclictest945-21usb-storage10:47:011
25323995148cyclictest945-21usb-storage10:04:141
25323995148cyclictest945-21usb-storage09:50:291
25323995148cyclictest945-21usb-storage09:43:441
25323995148cyclictest945-21usb-storage09:12:341
81500rcu_preempt29721-21/usr/sbin/munin10:16:001
81500rcu_preempt0-21swapper/108:48:311
81500rcu_preempt0-21swapper/108:48:311
81500rcu_preempt0-21swapper/108:14:051
81500rcu_preempt0-21swapper/107:50:161
81500rcu_preempt0-21swapper/007:28:020
81500rcu_preempt0-21swapper/007:12:140
25323995048cyclictest945-21usb-storage11:18:431
25323995047cyclictest945-21usb-storage12:35:381
25323995047cyclictest945-21usb-storage12:29:351
25323995047cyclictest945-21usb-storage10:26:031
81490rcu_preempt0-21swapper/107:12:291
81490rcu_preempt0-21swapper/008:51:350
25323994947cyclictest945-21usb-storage09:33:521
25323994947cyclictest945-21usb-storage09:18:031
81480rcu_preempt19-21ksoftirqd/109:00:451
25323994845cyclictest945-21usb-storage11:57:221
25323994541cyclictest945-21usb-storage09:07:001
25323994339cyclictest20736-21kworker/1:009:22:251
89850420irq/17-ehci_hcd171rcuc/107:15:571
89850420irq/17-ehci_hcd0-21swapper/108:21:091
25323994238cyclictest945-21usb-storage07:56:141
147950400irq/31-eth0-tx-3602-21if_eth107:51:021
81390rcu_preempt12592-21memory08:26:040
25323993735cyclictest181ktimersoftd/108:36:041
89850340irq/17-ehci_hcd0-21swapper/107:21:011
81320rcu_preempt19-21ksoftirqd/108:51:121
147950310irq/31-eth0-tx-30499-21/usr/sbin/munin07:31:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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