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2026-03-16 - 15:29
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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 all highest latencies:
System rackcslot3.osadl.org (updated Mon Mar 16, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81870rcu_preempt0-21swapper/107:09:381
81740rcu_preempt7634-21ssh10:14:240
81740rcu_preempt3-21ksoftirqd/010:34:300
81730rcu_preempt18430-21ssh11:34:400
81720rcu_preempt25343-21ssh11:49:271
81720rcu_preempt0-21swapper/009:54:320
81700rcu_preempt4840-21ntp_states11:09:350
81700rcu_preempt22378-21ntp_states09:39:350
81700rcu_preempt13351-21cron09:24:110
81700rcu_preempt0-21swapper/111:39:311
81700rcu_preempt0-21swapper/110:04:331
81690rcu_preempt22784-21ssh10:42:470
81690rcu_preempt22491-21sh10:41:471
81690rcu_preempt0-21swapper/111:59:361
81690rcu_preempt0-21swapper/110:23:171
81690rcu_preempt0-21swapper/108:44:321
81690rcu_preempt0-21swapper/010:59:560
81690rcu_preempt0-21swapper/009:34:190
81690rcu_preempt0-21swapper/009:16:200
81680rcu_preempt0-21swapper/109:40:011
81680rcu_preempt0-21swapper/109:38:061
81680rcu_preempt0-21swapper/011:53:120
81670rcu_preempt6481-21munin-run09:09:110
81670rcu_preempt16106-21latency_hist07:39:110
81670rcu_preempt0-21swapper/109:19:211
81670rcu_preempt0-21swapper/108:14:311
81660rcu_preempt27002-21ntpq08:19:341
81660rcu_preempt25307-21ssh10:47:291
81660rcu_preempt0-21swapper/109:27:351
81660rcu_preempt0-21swapper/012:38:190
81660rcu_preempt0-21swapper/012:23:020
81650rcu_preempt31024-21sh10:58:490
81650rcu_preempt28701-21munin-run08:29:121
81650rcu_preempt13815-21df_abs09:24:260
81650rcu_preempt0-21swapper/110:09:501
81640rcu_preempt0-21swapper/110:03:381
81640rcu_preempt0-21swapper/011:04:260
81630rcu_preempt3006-21kworker/0:007:09:370
81630rcu_preempt12302-21ssh12:24:460
81630rcu_preempt12047-21k10sensors07:19:361
81630rcu_preempt10016-21ssh12:21:071
81630rcu_preempt0-21swapper/111:54:331
81630rcu_preempt0-21swapper/109:15:031
81630rcu_preempt0-21swapper/009:49:190
81630rcu_preempt0-21swapper/008:07:040
89850620irq/17-ehci_hcd945-21usb-storage11:31:211
81620rcu_preempt9882-21/usr/sbin/munin07:14:261
81620rcu_preempt30383-21df_abs08:34:251
81620rcu_preempt26130-21df_abs10:49:260
81620rcu_preempt22514-21/usr/sbin/munin08:04:341
81620rcu_preempt14664-21ssh10:26:481
81620rcu_preempt0-21swapper/111:44:391
81620rcu_preempt0-21swapper/111:23:521
81620rcu_preempt0-21swapper/110:50:531
81620rcu_preempt0-21swapper/108:54:341
81620rcu_preempt0-21swapper/108:39:321
81620rcu_preempt0-21swapper/011:54:280
81620rcu_preempt0-21swapper/009:33:080
81610rcu_preempt8060-21ssh12:18:311
81610rcu_preempt7050-21if_can111:14:300
81610rcu_preempt29848-21ssh10:55:081
81610rcu_preempt16048-21sshd07:38:471
81610rcu_preempt15876-21if_can010:29:291
81610rcu_preempt0-21swapper/109:49:341
81610rcu_preempt0-21swapper/109:45:351
81610rcu_preempt0-21swapper/109:32:421
81610rcu_preempt0-21swapper/009:46:040
81610rcu_preempt0-21swapper/008:02:030
81600rcu_preempt2999-21sshd12:08:471
81600rcu_preempt19579-21ssh11:39:041
81600rcu_preempt13947-21ssh11:27:300
81600rcu_preempt13518-21ssh11:26:031
81600rcu_preempt0-21swapper/112:12:391
81600rcu_preempt0-21swapper/111:01:201
81600rcu_preempt0-21swapper/110:15:121
81600rcu_preempt0-21swapper/109:57:461
81600rcu_preempt0-21swapper/007:19:340
81590rcu_preempt7730-21diskmemload12:07:010
81590rcu_preempt5682-21ssh11:11:231
81590rcu_preempt3346-21ssh11:07:101
81590rcu_preempt18603-21munin-run07:49:110
81590rcu_preempt0-21swapper/112:34:321
81590rcu_preempt0-21swapper/112:30:111
81590rcu_preempt0-21swapper/110:39:021
81590rcu_preempt0-21swapper/108:30:181
81590rcu_preempt0-21swapper/107:29:471
81590rcu_preempt0-21swapper/012:15:390
81590rcu_preempt0-21swapper/011:20:410
81580rcu_preempt7730-21diskmemload10:08:140
81580rcu_preempt15248-21ssh10:28:480
81580rcu_preempt12148-21ssh10:22:300
81580rcu_preempt0-21swapper/109:05:141
81570rcu_preempt4674-21ssh12:10:350
81570rcu_preempt32277-21ssh12:02:220
81570rcu_preempt21299-21cpuspeed07:59:251
81570rcu_preempt1962-21if_eth008:49:300
81570rcu_preempt19132-21df12:39:261
81570rcu_preempt0-21swapper/109:09:251
81570rcu_preempt0-21swapper/107:52:181
81570rcu_preempt0-21swapper/011:42:140
81570rcu_preempt0-21swapper/010:44:260
81570rcu_preempt0-21swapper/007:57:240
81560rcu_preempt2639-21users08:49:391
81560rcu_preempt1542-21ssh10:02:110
81560rcu_preempt0-21swapper/111:18:361
81560rcu_preempt0-21swapper/108:59:281
81560rcu_preempt0-21swapper/107:39:231
81560rcu_preempt0-21swapper/008:56:500
81550rcu_preempt7730-21diskmemload12:33:120
81550rcu_preempt6780-21ssh10:11:410
81550rcu_preempt0-21swapper/112:28:001
81550rcu_preempt0-21swapper/012:39:390
81550rcu_preempt0-21swapper/010:29:370
81550rcu_preempt0-21swapper/008:28:110
147650550irq/28-eth0-rx-41ktimersoftd/011:44:480
81540rcu_preempt0-21swapper/107:54:271
81540rcu_preempt0-21swapper/107:24:371
81540rcu_preempt0-21swapper/008:29:350
81530rcu_preempt10458-21memory07:14:320
81530rcu_preempt0-21swapper/008:09:370
81530rcu_preempt0-21swapper/007:29:360
81520rcu_preempt31254-21cron08:39:120
81520rcu_preempt0-21swapper/008:44:400
81520rcu_preempt0-21swapper/007:49:250
81520rcu_preempt0-21swapper/007:39:400
81510rcu_preempt4347-21fw_forwarded_lo08:59:270
81510rcu_preempt12893-21modprobe07:24:300
81510rcu_preempt0-21swapper/008:19:250
81500rcu_preempt7738-21munin-run09:14:110
81500rcu_preempt30285-21df08:34:240
81490rcu_preempt15785-21ssh11:29:430
147950480irq/31-eth0-tx-17764-21sort07:44:301
147950440irq/31-eth0-tx-30086-21apache208:14:340
147650360irq/28-eth0-rx-23783-21apt-esm-hook08:09:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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