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2025-11-18 - 20:00
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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 Tue Nov 18, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81840rcu_preempt13347-21ssh11:09:441
81730rcu_preempt12843-21ntp_states10:10:191
81720rcu_preempt4862-21sh09:55:351
81720rcu_preempt24297-21ntp_offset10:30:181
81720rcu_preempt19-21ksoftirqd/110:44:291
81710rcu_preempt22841-21users09:30:231
81710rcu_preempt0-21swapper/109:42:371
81700rcu_preempt0-21swapper/111:26:341
81700rcu_preempt0-21swapper/110:15:041
81690rcu_preempt11763-21sshd07:09:340
81690rcu_preempt10745-21apt-get11:05:110
81680rcu_preempt19-21ksoftirqd/109:16:091
81680rcu_preempt0-21swapper/110:49:501
81680rcu_preempt0-21swapper/012:18:390
90050670irq/17-ehci_hcd946-21usb-storage07:58:411
81670rcu_preempt6887-21ssh10:56:561
81670rcu_preempt31470-21sh10:44:110
81670rcu_preempt0-21swapper/111:43:311
81670rcu_preempt0-21swapper/011:15:210
81660rcu_preempt6040-21sh10:55:190
81660rcu_preempt20848-21df_abs10:25:101
81660rcu_preempt0-21swapper/012:24:430
81660rcu_preempt0-21swapper/009:21:250
81640rcu_preempt28298-21ssh12:35:110
81640rcu_preempt23781-21ssh10:30:110
81640rcu_preempt10923-21fw_conntrack07:05:101
81630rcu_preempt0-21swapper/009:32:430
81620rcu_preempt3-21ksoftirqd/010:09:170
81620rcu_preempt27909-21ssh12:34:160
81610rcu_preempt0-21swapper/009:00:220
81600rcu_preempt4443-21ps08:45:200
81600rcu_preempt0-21swapper/012:05:130
81600rcu_preempt0-21swapper/010:19:550
81600rcu_preempt0-21swapper/009:59:490
90050590irq/17-ehci_hcd946-21usb-storage09:39:431
81590rcu_preempt19-21ksoftirqd/111:48:131
81590rcu_preempt10241-21/usr/sbin/munin12:00:210
81590rcu_preempt0-21swapper/012:10:170
81590rcu_preempt0-21swapper/011:55:150
81590rcu_preempt0-21swapper/011:39:390
81590rcu_preempt0-21swapper/009:45:210
90050580irq/17-ehci_hcd946-21usb-storage12:05:241
81580rcu_preempt25497-21munin-run12:29:550
81580rcu_preempt25403-21ntp_states09:35:220
81580rcu_preempt0-21swapper/009:50:290
81580rcu_preempt0-21swapper/008:50:220
81570rcu_preempt28358-21ssh10:37:540
81570rcu_preempt23680-21ssh11:27:040
81570rcu_preempt10619-21ssh09:10:160
81570rcu_preempt0-21swapper/011:50:180
81570rcu_preempt0-21swapper/010:03:100
81570rcu_preempt0-21swapper/007:40:190
81560rcu_preempt8241-21ssh11:00:120
81560rcu_preempt2704-21ssh11:47:360
81560rcu_preempt19129-21ssh10:20:340
81560rcu_preempt0-21swapper/109:46:291
81560rcu_preempt0-21swapper/010:47:010
81560rcu_preempt0-21swapper/010:29:070
81560rcu_preempt0-21swapper/008:55:150
81560rcu_preempt0-21swapper/008:25:220
81550rcu_preempt15748-21ssh11:13:100
81550rcu_preempt13562-21ssh10:11:260
81550rcu_preempt0-21swapper/111:53:371
81550rcu_preempt0-21swapper/111:23:591
81550rcu_preempt0-21swapper/110:03:421
81550rcu_preempt0-21swapper/108:05:311
81550rcu_preempt0-21swapper/107:28:091
81550rcu_preempt0-21swapper/011:30:080
81550rcu_preempt0-21swapper/011:21:520
81550rcu_preempt0-21swapper/010:54:140
81550rcu_preempt0-21swapper/009:41:020
81550rcu_preempt0-21swapper/007:28:320
81540rcu_preempt8606-21ssh11:58:301
81540rcu_preempt0-21swapper/112:23:081
81540rcu_preempt0-21swapper/110:59:561
81540rcu_preempt0-21swapper/110:35:361
81540rcu_preempt0-21swapper/109:54:051
81540rcu_preempt0-21swapper/109:28:281
81540rcu_preempt0-21swapper/108:57:381
81540rcu_preempt0-21swapper/108:23:071
81540rcu_preempt0-21swapper/108:12:371
81540rcu_preempt0-21swapper/107:54:361
81540rcu_preempt0-21swapper/107:11:201
81540rcu_preempt0-21swapper/009:26:240
81540rcu_preempt0-21swapper/008:10:180
81540rcu_preempt0-21swapper/007:45:110
81540rcu_preempt0-21swapper/007:36:350
151950540irq/31-eth0-tx-19-21ksoftirqd/110:50:081
81530rcu_preempt15636-21sshd07:22:300
81530rcu_preempt15181-21ssh09:18:010
81530rcu_preempt0-21swapper/110:20:301
81530rcu_preempt0-21swapper/108:35:141
81530rcu_preempt0-21swapper/011:42:140
81530rcu_preempt0-21swapper/008:40:320
81530rcu_preempt0-21swapper/008:30:130
11813995349cyclictest946-21usb-storage11:16:361
11813995349cyclictest18302-21kworker/1:207:39:221
81520rcu_preempt0-21swapper/107:30:521
81520rcu_preempt0-21swapper/107:16:281
81520rcu_preempt0-21swapper/008:35:440
11813995249cyclictest946-21usb-storage11:11:391
81510rcu_preempt0-21swapper/109:10:561
81510rcu_preempt0-21swapper/108:25:571
81510rcu_preempt0-21swapper/008:24:430
81510rcu_preempt0-21swapper/008:05:080
81510rcu_preempt0-21swapper/007:10:510
11813995149cyclictest946-21usb-storage12:18:141
11813995148cyclictest946-21usb-storage12:31:581
11813995148cyclictest946-21usb-storage12:14:391
11813995148cyclictest946-21usb-storage12:02:511
11813995148cyclictest7233-21kworker/1:209:00:261
11813995148cyclictest14305-21kworker/1:207:22:181
11813995147cyclictest946-21usb-storage12:25:471
81500rcu_preempt0-21swapper/108:18:281
11813995048cyclictest946-21usb-storage08:53:161
11813995047cyclictest946-21usb-storage11:31:161
11813995047cyclictest946-21usb-storage10:05:361
11812995048cyclictest946-21usb-storage08:02:080
11812995047cyclictest946-21usb-storage09:05:210
11812995046cyclictest946-21usb-storage07:30:070
81480rcu_preempt0-21swapper/109:07:151
81480rcu_preempt0-21swapper/008:15:370
81480rcu_preempt0-21swapper/007:56:220
11812994846cyclictest946-21usb-storage07:50:050
81470rcu_preempt13340-21df07:15:130
151950470irq/31-eth0-tx-0-21swapper/109:20:161
11813994744cyclictest23198-21kworker/1:208:00:421
151950460irq/31-eth0-tx-0-21swapper/112:37:171
151950460irq/31-eth0-tx-0-21swapper/111:36:161
11813994644cyclictest946-21usb-storage08:46:491
11813994542cyclictest860-21kworker/1:208:34:501
89650410irq/17-ehci_hcd22015-21latency_hist07:49:551
151850400irq/30-eth0-tx-10505-21kworker/1:007:40:161
151950370irq/31-eth0-tx-2183-21kworker/1:008:40:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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