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2026-05-06 - 18:39
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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 Wed May 06, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81700rcu_preempt3-21ksoftirqd/009:58:190
81690rcu_preempt0-21swapper/009:30:530
81680rcu_preempt7964-21sendmail-msp12:40:360
81680rcu_preempt0-21swapper/011:29:560
81680rcu_preempt0-21swapper/010:49:320
81680rcu_preempt0-21swapper/010:20:580
81680rcu_preempt0-21swapper/007:15:470
81670rcu_preempt27540-21munin-run09:25:350
81670rcu_preempt20624-1kworker/0:0H12:22:540
81670rcu_preempt0-21swapper/011:32:330
81660rcu_preempt30481-21ps10:25:550
81660rcu_preempt0-21swapper/109:53:391
81660rcu_preempt0-21swapper/109:43:191
81660rcu_preempt0-21swapper/009:26:180
81650rcu_preempt0-21swapper/112:00:591
81650rcu_preempt0-21swapper/111:35:571
81650rcu_preempt0-21swapper/111:25:351
81640rcu_preempt0-21swapper/110:10:281
81640rcu_preempt0-21swapper/109:35:521
81640rcu_preempt0-21swapper/011:49:590
89550630irq/17-ehci_hcd8519-21ssh09:46:561
81630rcu_preempt0-21swapper/110:32:311
81630rcu_preempt0-21swapper/110:17:021
81630rcu_preempt0-21swapper/109:26:471
81630rcu_preempt0-21swapper/109:23:461
81630rcu_preempt0-21swapper/009:14:370
81620rcu_preempt0-21swapper/111:30:481
81620rcu_preempt0-21swapper/111:19:051
81620rcu_preempt0-21swapper/110:54:211
81620rcu_preempt0-21swapper/110:12:031
81620rcu_preempt0-21swapper/012:04:430
81620rcu_preempt0-21swapper/011:19:320
81610rcu_preempt13194-21ssh10:53:130
81610rcu_preempt0-21swapper/110:44:321
81610rcu_preempt0-21swapper/107:29:251
81610rcu_preempt0-21swapper/011:13:400
81610rcu_preempt0-21swapper/010:05:570
81610rcu_preempt0-21swapper/009:45:090
81600rcu_preempt4691-21sshd12:34:201
81600rcu_preempt32315-21ssh09:32:181
81600rcu_preempt1310-21ssh12:27:461
81600rcu_preempt0-21swapper/112:17:231
81600rcu_preempt0-21swapper/112:08:031
81600rcu_preempt0-21swapper/111:05:581
81600rcu_preempt0-21swapper/108:37:051
81600rcu_preempt0-21swapper/108:25:541
81600rcu_preempt0-21swapper/107:20:411
81600rcu_preempt0-21swapper/107:20:321
81600rcu_preempt0-21swapper/010:55:590
81590rcu_preempt31449-21ssh10:28:251
81590rcu_preempt30135-21ssh11:24:031
81590rcu_preempt0-21swapper/112:37:461
81590rcu_preempt0-21swapper/112:21:331
81590rcu_preempt0-21swapper/111:41:081
81590rcu_preempt0-21swapper/110:57:591
81590rcu_preempt0-21swapper/110:45:531
81590rcu_preempt0-21swapper/108:55:591
81590rcu_preempt0-21swapper/011:55:500
81590rcu_preempt0-21swapper/008:05:570
81590rcu_preempt0-21swapper/007:25:560
81580rcu_preempt4287-21ssh10:37:131
81580rcu_preempt25868-21ssh12:14:191
81580rcu_preempt20833-21latency_hist12:05:360
81580rcu_preempt19496-21munin-run11:05:350
81580rcu_preempt17776-21ssh12:00:241
81580rcu_preempt14396-21ssh11:53:230
81580rcu_preempt0-21swapper/111:45:561
81580rcu_preempt0-21swapper/110:21:131
81580rcu_preempt0-21swapper/109:11:141
81580rcu_preempt0-21swapper/108:45:461
81580rcu_preempt0-21swapper/108:45:461
81580rcu_preempt0-21swapper/108:30:491
81580rcu_preempt0-21swapper/107:40:491
81580rcu_preempt0-21swapper/107:11:001
81580rcu_preempt0-21swapper/107:05:501
81580rcu_preempt0-21swapper/011:07:120
81580rcu_preempt0-21swapper/009:36:490
81570rcu_preempt23217-21users09:16:001
81570rcu_preempt13173-21ssh09:55:531
81570rcu_preempt12462-21ssh11:50:401
81570rcu_preempt11668-21ssh09:52:480
81570rcu_preempt0-21swapper/111:11:071
81570rcu_preempt0-21swapper/111:03:351
81570rcu_preempt0-21swapper/110:01:221
81570rcu_preempt0-21swapper/012:35:190
81570rcu_preempt0-21swapper/011:21:110
81570rcu_preempt0-21swapper/010:40:160
81570rcu_preempt0-21swapper/010:17:000
81570rcu_preempt0-21swapper/010:11:000
81570rcu_preempt0-21swapper/009:47:180
81570rcu_preempt0-21swapper/009:15:570
81560rcu_preempt992-21users07:55:591
81560rcu_preempt7474-21if_wlan011:40:530
81560rcu_preempt31556-21irqstats07:50:521
81560rcu_preempt0-21swapper/107:36:521
81560rcu_preempt0-21swapper/012:25:370
81560rcu_preempt0-21swapper/008:45:570
81560rcu_preempt0-21swapper/008:45:570
81560rcu_preempt0-21swapper/008:38:190
81560rcu_preempt0-21swapper/008:05:290
81550rcu_preempt2192-21snmpd09:10:020
81550rcu_preempt21024-21egrep07:10:480
81550rcu_preempt20429-21ntp_states07:05:560
81550rcu_preempt0-21swapper/109:07:001
81550rcu_preempt0-21swapper/108:55:191
81550rcu_preempt0-21swapper/108:22:551
81550rcu_preempt0-21swapper/012:10:480
81550rcu_preempt0-21swapper/011:38:410
81550rcu_preempt0-21swapper/010:41:240
81550rcu_preempt0-21swapper/010:01:190
81550rcu_preempt0-21swapper/008:30:570
81550rcu_preempt0-21swapper/008:20:490
81540rcu_preempt11453-21cpu08:40:470
81540rcu_preempt0-21swapper/109:04:111
81540rcu_preempt0-21swapper/108:02:191
81540rcu_preempt0-21swapper/010:32:070
81530rcu_preempt11877-21irqstats08:40:521
81530rcu_preempt0-21swapper/108:12:131
81530rcu_preempt0-21swapper/107:33:571
81530rcu_preempt0-21swapper/012:16:240
81530rcu_preempt0-21swapper/008:28:030
81530rcu_preempt0-21swapper/007:40:490
81530rcu_preempt0-21swapper/007:24:360
81520rcu_preempt0-21swapper/008:56:300
81520rcu_preempt0-21swapper/007:46:020
81510rcu_preempt0-21swapper/007:34:420
81500rcu_preempt31788-21ntpq07:50:550
81500rcu_preempt0-21swapper/008:10:410
81500rcu_preempt0-21swapper/007:55:590
81480rcu_preempt0-21swapper/008:50:450
20844994543cyclictest945-21usb-storage08:08:191
20844994542cyclictest945-21usb-storage07:45:481
20844994442cyclictest945-21usb-storage08:19:091
81390rcu_preempt16713-21fw_conntrack09:00:500
146450390irq/29-eth0-rx-0-21swapper/008:15:590
81380rcu_preempt23337-21kworker/0:007:35:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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