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2025-12-15 - 16:54
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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 Mon Dec 15, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811240rcu_preempt3487-21ssh11:03:271
811220rcu_preempt20940-21ssh10:41:311
811220rcu_preempt14207-21ssh11:18:521
811210rcu_preempt24900-21ssh10:00:501
811210rcu_preempt19040-21ssh09:53:211
811200rcu_preempt573-21ssh12:31:121
811200rcu_preempt4864-21ssh09:33:031
811200rcu_preempt3091-21ssh09:29:271
811200rcu_preempt26335-21ssh09:17:061
811200rcu_preempt18050-21ssh12:09:221
811200rcu_preempt12980-21ssh12:03:101
811190rcu_preempt4215-21ssh12:36:181
811180rcu_preempt23666-21ssh11:31:371
811180rcu_preempt22695-21ssh09:58:431
811170rcu_preempt25018-21ssh12:19:181
811160rcu_preempt29658-21ssh10:54:021
811160rcu_preempt20446-21ssh11:27:121
811160rcu_preempt17436-21ssh10:36:331
811150rcu_preempt20083-21ssh12:13:341
811110rcu_preempt16634-21munin-run10:35:041
811090rcu_preempt11421-21turbostat12:00:041
811080rcu_preempt1706-21ssh10:14:051
811070rcu_preempt12362-21ssh11:15:051
811010rcu_preempt9097-21ssh09:38:591
81990rcu_preempt4758-21idleruntime10:18:591
81970rcu_preempt0-21swapper/111:54:051
81960rcu_preempt0-21swapper/109:12:471
81890rcu_preempt28806-21ssh12:24:541
81890rcu_preempt15758-1kworker/0:1H11:26:010
81870rcu_preempt1591-21ssh10:59:451
81860rcu_preempt578-21ssh12:31:130
81850rcu_preempt5477-21ssh11:05:081
81840rcu_preempt0-21swapper/110:29:021
81820rcu_preempt17737-21apt-esm-hook11:23:551
81810rcu_preempt0-21swapper/109:45:231
81800rcu_preempt29684-21ssh12:26:301
81780rcu_preempt11839-21cpuspeed_turbos08:33:551
81770rcu_preempt0-21swapper/111:39:021
81770rcu_preempt0-21swapper/110:06:401
81770rcu_preempt0-21swapper/107:08:581
81760rcu_preempt0-21swapper/110:23:221
81750rcu_preempt0-21swapper/109:40:261
81740rcu_preempt28800-21turbostat07:30:041
81720rcu_preempt2060-21sh11:47:161
81710rcu_preempt0-21swapper/111:41:591
81690rcu_preempt0-21swapper/010:48:060
81680rcu_preempt6599-21sh10:20:550
81680rcu_preempt0-21swapper/108:14:021
81680rcu_preempt0-21swapper/012:06:580
81680rcu_preempt0-21swapper/009:15:030
81680rcu_preempt0-21swapper/007:43:550
81670rcu_preempt5730-21sh11:52:400
81670rcu_preempt25009-21munin-run07:15:050
81670rcu_preempt0-21swapper/108:49:041
81670rcu_preempt0-21swapper/009:32:320
81660rcu_preempt30430-21ssh10:54:360
81660rcu_preempt0-21swapper/011:35:470
81660rcu_preempt0-21swapper/010:37:490
81650rcu_preempt0-21swapper/011:14:110
81650rcu_preempt0-21swapper/010:59:510
81650rcu_preempt0-21swapper/009:16:460
81640rcu_preempt0-21swapper/011:08:340
81640rcu_preempt0-21swapper/009:42:290
81630rcu_preempt24176-21http_loadtime07:13:591
81630rcu_preempt0-21swapper/010:29:150
81620rcu_preempt3343-21if_wlan007:59:010
81620rcu_preempt0-21swapper/009:39:440
81620rcu_preempt0-21swapper/009:29:050
81610rcu_preempt9796-21missed_timers08:24:010
81610rcu_preempt0-21swapper/011:44:040
81610rcu_preempt0-21swapper/010:09:130
81610rcu_preempt0-21swapper/009:54:070
81610rcu_preempt0-21swapper/009:21:160
81610rcu_preempt0-21swapper/007:49:020
81600rcu_preempt0-21swapper/012:28:050
81600rcu_preempt0-21swapper/011:34:180
89850580irq/17-ehci_hcd945-21usb-storage12:00:080
81580rcu_preempt3-21ksoftirqd/010:15:320
81580rcu_preempt21373-21ssh10:42:270
81580rcu_preempt0-21swapper/011:47:340
81580rcu_preempt0-21swapper/010:33:040
81580rcu_preempt0-21swapper/010:00:090
81570rcu_preempt12956-21latency_hist08:35:051
81570rcu_preempt0-21swapper/012:21:280
81570rcu_preempt0-21swapper/009:49:050
81570rcu_preempt0-21swapper/008:09:000
81570rcu_preempt0-21swapper/007:33:100
81570rcu_preempt0-21swapper/007:05:410
81560rcu_preempt32115-21ssh10:11:180
81560rcu_preempt0-21swapper/011:55:560
81560rcu_preempt0-21swapper/007:19:000
81550rcu_preempt2510-21ssh11:01:200
81550rcu_preempt24092-21ssh09:59:250
81550rcu_preempt11101-21cat08:29:010
81550rcu_preempt0-21swapper/012:35:260
81550rcu_preempt0-21swapper/012:16:070
81550rcu_preempt0-21swapper/011:22:490
81550rcu_preempt0-21swapper/008:54:380
81550rcu_preempt0-21swapper/008:31:280
81550rcu_preempt0-21swapper/007:37:560
81550rcu_preempt0-21swapper/007:22:150
81540rcu_preempt20155-21ssh12:13:430
81540rcu_preempt0-21swapper/108:29:561
81540rcu_preempt0-21swapper/107:24:291
81540rcu_preempt0-21swapper/011:17:470
81540rcu_preempt0-21swapper/009:08:550
81540rcu_preempt0-21swapper/008:48:130
81540rcu_preempt0-21swapper/008:44:530
81540rcu_preempt0-21swapper/008:35:200
81530rcu_preempt0-21swapper/108:56:521
81530rcu_preempt0-21swapper/108:52:241
81530rcu_preempt0-21swapper/108:02:261
81530rcu_preempt0-21swapper/107:33:211
81530rcu_preempt0-21swapper/008:18:260
81530rcu_preempt0-21swapper/007:28:070
81520rcu_preempt0-21swapper/009:03:510
81520rcu_preempt0-21swapper/008:56:510
81520rcu_preempt0-21swapper/008:13:170
81520rcu_preempt0-21swapper/008:04:380
23764995249cyclictest945-21usb-storage10:46:121
81510rcu_preempt0-21swapper/007:54:250
23764995148cyclictest945-21usb-storage09:20:521
23764995148cyclictest945-21usb-storage08:08:541
81440rcu_preempt19474-21df09:03:541
23764994441cyclictest945-21usb-storage08:43:211
81420rcu_preempt0-21swapper/107:53:231
23764994240cyclictest181ktimersoftd/107:58:571
81350rcu_preempt0-21swapper/107:47:571
81330rcu_preempt21697-21diskmemload09:10:041
81330rcu_preempt19-21ksoftirqd/107:44:021
81310rcu_preempt19-21ksoftirqd/108:20:041
81310rcu_preempt19-21ksoftirqd/107:39:011
23764993128cyclictest181ktimersoftd/107:18:561
1699310migration/110399-21latency_hist08:25:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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