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2025-12-14 - 17:21
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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 Sun Dec 14, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811340rcu_preempt28601-21ssh11:33:081
811230rcu_preempt15808-21ssh11:14:571
811190rcu_preempt7490-21ssh11:48:301
811190rcu_preempt0-21swapper/109:20:031
811190rcu_preempt0-21swapper/109:20:031
811180rcu_preempt15402-21ssh09:48:211
811160rcu_preempt32280-21ssh09:27:121
811160rcu_preempt29207-21ssh12:17:361
811160rcu_preempt16468-21ssh10:33:161
811160rcu_preempt12518-21ssh10:27:481
811150rcu_preempt5197-21ssh11:44:101
811150rcu_preempt10425-21ssh11:51:521
811140rcu_preempt9630-21ssh09:39:381
811140rcu_preempt4873-21ssh11:00:071
811130rcu_preempt2065-21ssh10:56:591
811130rcu_preempt19416-21ssh11:19:451
811090rcu_preempt25520-21df_abs11:28:551
811020rcu_preempt23548-21ssh09:59:001
81940rcu_preempt11010-21munin-run10:25:031
81840rcu_preempt15052-21ssh11:58:521
81750rcu_preempt5029-21kernelversion09:34:001
81730rcu_preempt19574-21ssh12:04:051
81730rcu_preempt11898-21sh12:37:561
81720rcu_preempt0-21swapper/107:05:291
81710rcu_preempt27487-21ssh12:14:281
81710rcu_preempt15146-21df_abs08:53:531
81710rcu_preempt0-21swapper/111:06:101
81700rcu_preempt25960-21forks09:18:551
81700rcu_preempt25754-21wc07:25:031
81700rcu_preempt19852-21diskmemload11:47:240
81700rcu_preempt0-21swapper/007:08:090
81690rcu_preempt20084-21sh10:38:030
81690rcu_preempt20084-21sh10:38:030
81690rcu_preempt0-21swapper/109:40:281
81690rcu_preempt0-21swapper/012:33:560
81670rcu_preempt19852-21diskmemload11:35:050
81670rcu_preempt0-21swapper/112:22:351
81670rcu_preempt0-21swapper/012:15:430
81670rcu_preempt0-21swapper/012:05:340
81670rcu_preempt0-21swapper/011:53:070
81670rcu_preempt0-21swapper/009:36:280
81660rcu_preempt6507-21ssh12:29:571
81660rcu_preempt24763-21irqstats10:43:571
81660rcu_preempt19845-21munin-run09:10:021
81660rcu_preempt0-21swapper/110:37:041
81660rcu_preempt0-21swapper/110:37:041
81660rcu_preempt0-21swapper/110:08:211
81660rcu_preempt0-21swapper/107:58:561
81660rcu_preempt0-21swapper/012:38:160
81660rcu_preempt0-21swapper/011:06:120
81660rcu_preempt0-21swapper/010:41:460
81640rcu_preempt31657-21users10:09:060
81640rcu_preempt26421-21sh10:45:470
81640rcu_preempt0-21swapper/111:36:381
81640rcu_preempt0-21swapper/009:30:390
81630rcu_preempt1830-21apt-esm-hook10:13:530
81630rcu_preempt0-21swapper/110:17:001
81630rcu_preempt0-21swapper/108:59:061
81620rcu_preempt8460-21ssh12:33:341
81620rcu_preempt32544-21ps10:54:040
81620rcu_preempt25700-21ssh10:01:411
81620rcu_preempt23229-21df09:58:560
81620rcu_preempt0-21swapper/110:54:071
81620rcu_preempt0-21swapper/110:47:101
81620rcu_preempt0-21swapper/109:51:471
81620rcu_preempt0-21swapper/109:12:401
81620rcu_preempt0-21swapper/108:30:031
81610rcu_preempt30733-21munin-run07:45:030
81610rcu_preempt29073-21ntpq07:39:021
81610rcu_preempt20021-21ssh11:20:381
81610rcu_preempt0-21swapper/112:07:051
81610rcu_preempt0-21swapper/011:02:170
81610rcu_preempt0-21swapper/010:26:070
81600rcu_preempt13257-21ps08:44:031
81600rcu_preempt1153-21ssh10:12:371
81600rcu_preempt0-21swapper/108:49:031
81590rcu_preempt25550-21ssh11:28:560
81590rcu_preempt0-21swapper/108:08:561
81590rcu_preempt0-21swapper/012:14:570
81590rcu_preempt0-21swapper/010:18:260
81580rcu_preempt7450-21ssh10:20:110
81580rcu_preempt4460-21ssh12:27:590
81580rcu_preempt29702-21ssh09:23:560
81580rcu_preempt29702-21ssh09:23:560
81580rcu_preempt13941-21ssh09:45:250
81580rcu_preempt0-21swapper/108:39:021
81580rcu_preempt0-21swapper/107:28:571
81580rcu_preempt0-21swapper/107:14:071
81580rcu_preempt0-21swapper/011:33:140
81580rcu_preempt0-21swapper/010:32:260
81580rcu_preempt0-21swapper/009:53:170
81570rcu_preempt3-21ksoftirqd/009:40:290
81570rcu_preempt0-21swapper/012:20:090
81570rcu_preempt0-21swapper/011:43:520
81570rcu_preempt0-21swapper/010:03:200
81570rcu_preempt0-21swapper/008:59:020
89450560irq/17-ehci_hcd0-21swapper/011:12:550
81560rcu_preempt27376-21ssh09:20:030
81560rcu_preempt20270-21ssh09:10:360
81560rcu_preempt17240-21ssh11:17:320
81560rcu_preempt0-21swapper/107:50:591
81560rcu_preempt0-21swapper/107:50:591
81560rcu_preempt0-21swapper/107:49:031
81560rcu_preempt0-21swapper/107:40:221
81560rcu_preempt0-21swapper/011:59:400
81560rcu_preempt0-21swapper/008:53:570
81560rcu_preempt0-21swapper/008:09:050
81560rcu_preempt0-21swapper/007:28:200
81560rcu_preempt0-21swapper/007:24:030
81550rcu_preempt0-21swapper/108:26:491
81550rcu_preempt0-21swapper/108:02:151
81550rcu_preempt0-21swapper/107:18:101
81550rcu_preempt0-21swapper/008:22:210
81550rcu_preempt0-21swapper/008:11:140
81550rcu_preempt0-21swapper/007:53:590
81550rcu_preempt0-21swapper/007:53:590
81540rcu_preempt0-21swapper/108:17:111
81540rcu_preempt0-21swapper/012:00:060
81540rcu_preempt0-21swapper/011:20:390
81540rcu_preempt0-21swapper/008:48:390
81540rcu_preempt0-21swapper/008:44:040
81540rcu_preempt0-21swapper/007:59:030
81540rcu_preempt0-21swapper/007:49:010
147650540irq/28-eth0-rx-41ktimersoftd/010:59:030
81530rcu_preempt0-21swapper/009:28:510
81530rcu_preempt0-21swapper/009:06:100
81530rcu_preempt0-21swapper/007:10:270
81520rcu_preempt0-21swapper/007:37:000
81520rcu_preempt0-21swapper/007:31:140
81510rcu_preempt0-21swapper/108:22:291
81510rcu_preempt0-21swapper/008:30:550
81510rcu_preempt0-21swapper/008:29:280
81450rcu_preempt2426-21df08:03:550
81430rcu_preempt3-21ksoftirqd/007:18:580
81420rcu_preempt28203-21latency_hist07:35:031
21907994239cyclictest945-21usb-storage08:13:531
81400rcu_preempt11731-21memory08:38:590
21907993735cyclictest945-21usb-storage09:04:011
147650360irq/28-eth0-rx-17480-21apt-get09:03:520
147850320irq/30-eth0-tx-0-21swapper/008:18:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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