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2026-07-05 - 06:48
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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 Jul 05, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt19-21ksoftirqd/121:47:151
81780rcu_preempt19-21ksoftirqd/121:58:411
89950770irq/17-ehci_hcd171rcuc/119:30:351
81770rcu_preempt0-21swapper/121:45:011
81750rcu_preempt19-21ksoftirqd/100:25:431
81750rcu_preempt0-21swapper/023:28:320
81740rcu_preempt19-21ksoftirqd/121:33:341
81730rcu_preempt19-21ksoftirqd/121:24:531
81730rcu_preempt19-21ksoftirqd/100:33:231
81710rcu_preempt0-21swapper/022:10:540
81700rcu_preempt32189-21ssh22:02:000
81700rcu_preempt10045-21/usr/sbin/munin21:25:350
81700rcu_preempt0-21swapper/019:21:010
81700rcu_preempt0-21swapper/000:04:070
81690rcu_preempt24186-21sh00:38:160
81690rcu_preempt0-21swapper/119:10:551
81690rcu_preempt0-21swapper/023:12:290
81680rcu_preempt18086-21ssh00:27:120
81680rcu_preempt0-21swapper/123:15:321
81670rcu_preempt16525-21irqstats21:35:540
81660rcu_preempt9662-21if_can123:15:510
81660rcu_preempt5573-21ssh23:08:350
81660rcu_preempt32187-21netstat20:55:560
81660rcu_preempt32187-21netstat20:55:560
81660rcu_preempt0-21swapper/122:01:001
81650rcu_preempt20940-21ssh23:35:490
81650rcu_preempt0-21swapper/122:21:451
81650rcu_preempt0-21swapper/121:36:311
81650rcu_preempt0-21swapper/022:29:030
81650rcu_preempt0-21swapper/021:55:450
81650rcu_preempt0-21swapper/019:40:470
81640rcu_preempt9411-21ssh00:11:020
81640rcu_preempt3169-21ssh22:07:541
81640rcu_preempt0-21swapper/123:17:201
81640rcu_preempt0-21swapper/122:50:251
81640rcu_preempt0-21swapper/021:15:190
81630rcu_preempt17089-21ssh23:28:131
81630rcu_preempt0-21swapper/121:07:401
81630rcu_preempt0-21swapper/022:30:460
81630rcu_preempt0-21swapper/020:36:010
146550630irq/30-eth0-tx-41ktimersoftd/021:20:240
81620rcu_preempt22535-21munin-run20:20:340
81620rcu_preempt1434-21timerwakeupswit21:01:020
81620rcu_preempt14077-21ssh23:22:571
81620rcu_preempt0-21swapper/122:37:341
81620rcu_preempt0-21swapper/122:29:151
81620rcu_preempt0-21swapper/022:40:080
81620rcu_preempt0-21swapper/021:42:280
81620rcu_preempt0-21swapper/019:55:550
89950610irq/17-ehci_hcd1283-21jbd2/sda3-820:30:501
81610rcu_preempt31153-21ssh23:52:361
81610rcu_preempt26747-21ssh00:42:251
81610rcu_preempt26290-21ssh21:51:361
81610rcu_preempt23876-21ssh22:44:351
81610rcu_preempt1637-21ssh23:57:451
81610rcu_preempt0-21swapper/120:16:001
81610rcu_preempt0-21swapper/120:11:011
81610rcu_preempt0-21swapper/119:15:551
81610rcu_preempt0-21swapper/100:22:501
81610rcu_preempt0-21swapper/019:14:140
81610rcu_preempt0-21swapper/000:05:530
81600rcu_preempt5795-21ssh21:17:011
81600rcu_preempt28887-21ssh22:52:071
81600rcu_preempt2779-21ssh23:04:081
81600rcu_preempt27140-21ssh00:43:400
81600rcu_preempt20541-21ssh23:35:051
81600rcu_preempt0-21swapper/123:38:461
81600rcu_preempt0-21swapper/100:05:591
81600rcu_preempt0-21swapper/023:40:570
81600rcu_preempt0-21swapper/023:23:590
81600rcu_preempt0-21swapper/023:01:030
81600rcu_preempt0-21swapper/022:55:390
81600rcu_preempt0-21swapper/021:50:590
81590rcu_preempt9681-21ssh00:11:091
81590rcu_preempt32354-21ssh22:59:171
81590rcu_preempt28643-21python20:40:591
81590rcu_preempt24918-21ssh00:40:311
81590rcu_preempt13346-21ssh00:20:230
81590rcu_preempt12131-21ssh21:28:161
81590rcu_preempt0-21swapper/122:30:561
81590rcu_preempt0-21swapper/122:19:021
81590rcu_preempt0-21swapper/121:11:031
81590rcu_preempt0-21swapper/120:36:001
81590rcu_preempt0-21swapper/120:21:001
81590rcu_preempt0-21swapper/119:52:341
81590rcu_preempt0-21swapper/119:25:511
81590rcu_preempt0-21swapper/020:30:470
81590rcu_preempt0-21swapper/000:34:120
146450590irq/29-eth0-rx-0-21swapper/021:25:500
89950580irq/17-ehci_hcd171rcuc/120:55:351
81580rcu_preempt6188-21ssh22:13:331
81580rcu_preempt3478-21ssh22:08:470
81580rcu_preempt31608-21ssh23:53:550
81580rcu_preempt25093-21ssh23:41:201
81580rcu_preempt22880-21ssh22:41:090
81580rcu_preempt15652-21ssh21:35:120
81580rcu_preempt11401-21ssh22:21:430
81580rcu_preempt0-21swapper/123:05:551
81580rcu_preempt0-21swapper/119:55:371
81580rcu_preempt0-21swapper/119:42:001
81580rcu_preempt0-21swapper/100:15:531
81580rcu_preempt0-21swapper/100:01:511
81570rcu_preempt9021-21ssh22:18:240
81570rcu_preempt28716-21ssh23:49:020
81570rcu_preempt0-21swapper/123:46:541
81570rcu_preempt0-21swapper/121:04:021
81570rcu_preempt0-21swapper/119:36:061
81570rcu_preempt0-21swapper/023:57:530
81570rcu_preempt0-21swapper/022:54:510
81570rcu_preempt0-21swapper/020:45:580
81570rcu_preempt0-21swapper/000:22:340
81560rcu_preempt0-21swapper/120:47:421
81560rcu_preempt0-21swapper/120:25:461
81560rcu_preempt0-21swapper/020:03:190
81550rcu_preempt19871-21ssh23:33:090
81550rcu_preempt0-21swapper/120:55:461
81550rcu_preempt0-21swapper/120:55:461
81550rcu_preempt0-21swapper/120:00:361
81550rcu_preempt0-21swapper/021:48:330
81550rcu_preempt0-21swapper/020:10:510
6088995550cyclictest945-21usb-storage22:46:070
81540rcu_preempt24729-21ps20:25:590
81540rcu_preempt2192-21snmpd20:42:490
81540rcu_preempt14724-21python19:46:001
81530rcu_preempt15531-21interrupts19:50:530
81530rcu_preempt0-21swapper/120:09:041
81520rcu_preempt0-21swapper/021:10:150
81520rcu_preempt0-21swapper/019:37:190
81520rcu_preempt0-21swapper/019:32:260
81520rcu_preempt0-21swapper/019:15:530
6089995247cyclictest945-21usb-storage19:21:041
81510rcu_preempt0-21swapper/020:23:380
6088995047cyclictest945-21usb-storage20:10:350
6088995013cyclictest30197-21kworker/0:219:50:300
81490rcu_preempt30520-21fw_conntrack20:50:500
6088994010cyclictest30197-21kworker/0:219:28:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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