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2026-03-11 - 10:38
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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 Mar 11, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850940irq/17-ehci_hcd945-21usb-storage19:10:361
147850850irq/30-eth0-tx-0-21swapper/019:13:530
81780rcu_preempt4006-21ssh00:28:311
81750rcu_preempt32355-21ssh21:14:450
81710rcu_preempt30886-21diskmemload00:22:590
81710rcu_preempt10872-21ssh21:34:380
81710rcu_preempt0-21swapper/023:56:530
81710rcu_preempt0-21swapper/023:07:000
81710rcu_preempt0-21swapper/021:19:150
81700rcu_preempt0-21swapper/023:09:180
81690rcu_preempt0-21swapper/023:27:230
81690rcu_preempt0-21swapper/022:39:140
89850680irq/17-ehci_hcd0-21swapper/120:52:011
89850670irq/17-ehci_hcd7981-21sort21:29:221
81670rcu_preempt2860-21ssh22:20:590
81660rcu_preempt27652-1kworker/1:0H21:14:011
81650rcu_preempt0-21swapper/023:35:360
81650rcu_preempt0-21swapper/022:29:180
147850650irq/30-eth0-tx-945-21usb-storage23:37:421
81640rcu_preempt3-21ksoftirqd/022:16:390
81640rcu_preempt0-21swapper/122:55:591
81640rcu_preempt0-21swapper/122:46:411
81640rcu_preempt0-21swapper/021:48:150
81640rcu_preempt0-21swapper/020:39:080
81640rcu_preempt0-21swapper/019:43:140
81630rcu_preempt21517-21ssh23:58:531
89850620irq/17-ehci_hcd945-21usb-storage00:14:511
89450620irq/17-ehci_hcd27804-21wc20:59:170
81620rcu_preempt22367-21ssh21:57:151
81620rcu_preempt18725-21rm23:53:220
81620rcu_preempt11837-21grep23:39:190
81620rcu_preempt0-21swapper/123:40:491
81620rcu_preempt0-21swapper/123:01:061
81620rcu_preempt0-21swapper/122:30:581
81620rcu_preempt0-21swapper/119:42:471
81620rcu_preempt0-21swapper/100:03:571
81620rcu_preempt0-21swapper/000:00:070
81610rcu_preempt6124-21ssh21:26:311
81610rcu_preempt32197-21ssh23:16:241
81610rcu_preempt30573-21processes21:09:200
81610rcu_preempt28885-21ssh00:12:251
81610rcu_preempt25090-21ssh23:04:021
81610rcu_preempt14368-21timerwakeupswit20:04:230
81610rcu_preempt0-21swapper/123:24:501
81610rcu_preempt0-21swapper/122:08:261
81610rcu_preempt0-21swapper/121:44:221
81610rcu_preempt0-21swapper/120:14:171
81610rcu_preempt0-21swapper/022:34:540
147850610irq/30-eth0-tx-1840-21ssh23:19:320
81600rcu_preempt7526-21ssh23:30:360
81600rcu_preempt23463-21sshd00:01:161
81600rcu_preempt18781-21ssh22:51:030
81600rcu_preempt14623-21ssh22:44:080
81600rcu_preempt0-21swapper/122:34:131
81600rcu_preempt0-21swapper/122:00:221
81600rcu_preempt0-21swapper/120:39:211
81600rcu_preempt0-21swapper/120:34:381
81600rcu_preempt0-21swapper/100:29:511
81600rcu_preempt0-21swapper/100:29:511
81600rcu_preempt0-21swapper/021:59:230
81600rcu_preempt0-21swapper/021:49:200
81600rcu_preempt0-21swapper/019:49:180
81600rcu_preempt0-21swapper/000:35:030
81600rcu_preempt0-21swapper/000:35:030
81590rcu_preempt8565-21ssh00:35:521
81590rcu_preempt8565-21ssh00:35:521
81590rcu_preempt3598-21ssh22:23:331
81590rcu_preempt2138-21snmpd21:50:591
81590rcu_preempt1730-21sshd19:14:361
81590rcu_preempt15277-21ntpq20:09:190
81590rcu_preempt12398-21ssh21:39:021
81590rcu_preempt11976-21ssh21:38:051
81590rcu_preempt11258-21ssh00:41:101
81590rcu_preempt0-21swapper/123:09:021
81590rcu_preempt0-21swapper/122:51:381
81590rcu_preempt0-21swapper/122:39:071
81590rcu_preempt0-21swapper/122:18:211
81590rcu_preempt0-21swapper/120:29:501
81590rcu_preempt0-21swapper/120:09:131
81590rcu_preempt0-21swapper/120:05:371
81590rcu_preempt0-21swapper/119:29:151
81590rcu_preempt0-21swapper/022:11:190
81590rcu_preempt0-21swapper/021:28:520
81590rcu_preempt0-21swapper/000:39:240
81580rcu_preempt931-21ssh00:22:131
81580rcu_preempt8035-21ssh23:32:281
81580rcu_preempt6339-21needreboot19:34:160
81580rcu_preempt6056-21ssh22:27:390
81580rcu_preempt31892-21ssh23:15:220
81580rcu_preempt18584-21ssh23:52:511
81580rcu_preempt1817-21ssh23:19:261
81580rcu_preempt0-21swapper/120:46:141
81580rcu_preempt0-21swapper/023:03:010
81580rcu_preempt0-21swapper/021:54:510
81580rcu_preempt0-21swapper/020:14:150
81580rcu_preempt0-21swapper/019:19:170
81580rcu_preempt0-21swapper/000:07:150
81570rcu_preempt3882-21ssh00:28:050
81570rcu_preempt15469-21ssh23:45:411
81570rcu_preempt0-21swapper/122:26:111
81570rcu_preempt0-21swapper/122:10:301
81570rcu_preempt0-21swapper/121:20:541
81570rcu_preempt0-21swapper/121:04:361
81570rcu_preempt0-21swapper/120:28:141
81570rcu_preempt0-21swapper/020:47:140
81570rcu_preempt0-21swapper/019:54:100
81570rcu_preempt0-21swapper/000:31:480
81570rcu_preempt0-21swapper/000:31:480
81570rcu_preempt0-21swapper/000:17:490
81570rcu_preempt0-21swapper/000:10:090
81560rcu_preempt15626-21ssh23:46:170
81560rcu_preempt0-21swapper/120:59:231
81560rcu_preempt0-21swapper/021:29:200
81560rcu_preempt0-21swapper/019:33:410
81550rcu_preempt2378-21mii-tool19:19:151
81550rcu_preempt21064-21rm22:54:400
81550rcu_preempt12673-21strings19:59:171
81550rcu_preempt0-21swapper/121:11:151
81550rcu_preempt0-21swapper/119:57:161
81550rcu_preempt0-21swapper/119:34:281
81540rcu_preempt0-21swapper/119:24:171
81540rcu_preempt0-21swapper/022:04:330
81530rcu_preempt12383-21ssh21:39:000
81530rcu_preempt0-21swapper/020:34:190
81520rcu_preempt0-21swapper/119:50:301
81520rcu_preempt0-21swapper/021:04:590
81520rcu_preempt0-21swapper/020:27:220
81520rcu_preempt0-21swapper/020:02:140
81520rcu_preempt0-21swapper/019:44:120
433995248cyclictest945-21usb-storage20:57:161
81500rcu_preempt3442-21diskstats19:24:120
81500rcu_preempt24904-21diskstats20:49:110
433995046cyclictest16922-21kworker/1:020:22:091
81490rcu_preempt8734-21irqstats19:44:161
81480rcu_preempt0-21swapper/020:54:490
81450rcu_preempt0-21swapper/020:29:100
81450rcu_preempt0-21swapper/019:14:260
43299432cyclictest0-21swapper/020:23:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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