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2025-12-10 - 13:26
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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 100 highest latencies:
System rackcslot3.osadl.org (updated Wed Dec 10, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90050730irq/17-ehci_hcd946-21usb-storage00:01:301
81730rcu_preempt0-21swapper/119:04:571
81720rcu_preempt19-21ksoftirqd/123:32:241
81710rcu_preempt0-21swapper/122:00:421
81690rcu_preempt19-21ksoftirqd/122:13:361
81690rcu_preempt11432-21munin-run23:04:400
81680rcu_preempt25959-21sh21:29:490
81680rcu_preempt0-21swapper/022:50:040
81670rcu_preempt19-21ksoftirqd/123:21:321
81670rcu_preempt0-21swapper/000:00:040
81660rcu_preempt910-21cron20:14:400
81660rcu_preempt14256-21mailstats00:10:050
81660rcu_preempt0-21swapper/000:32:300
81650rcu_preempt30816-21ssh21:38:290
81650rcu_preempt0-21swapper/021:19:580
81640rcu_preempt15573-21sort22:10:000
81640rcu_preempt0-21swapper/023:47:140
81630rcu_preempt5119-21ssh23:53:450
81630rcu_preempt23575-21cpuspeed_turbos21:24:570
81630rcu_preempt0-21swapper/123:51:201
81630rcu_preempt0-21swapper/021:09:400
81620rcu_preempt25732-21ssh21:29:311
81620rcu_preempt22751-21ssh21:22:511
81620rcu_preempt19424-21ssh21:16:071
81620rcu_preempt0-21swapper/123:37:251
81620rcu_preempt0-21swapper/122:25:001
81620rcu_preempt0-21swapper/120:20:051
81620rcu_preempt0-21swapper/023:58:370
81620rcu_preempt0-21swapper/022:46:540
81620rcu_preempt0-21swapper/022:24:580
81620rcu_preempt0-21swapper/020:25:080
81620rcu_preempt0-21swapper/019:40:490
81610rcu_preempt2189-21ssh23:47:551
81610rcu_preempt0-21swapper/123:42:171
81610rcu_preempt0-21swapper/123:29:311
81610rcu_preempt0-21swapper/122:24:151
81610rcu_preempt0-21swapper/120:48:441
81610rcu_preempt0-21swapper/021:46:180
90050600irq/17-ehci_hcd0-21swapper/120:24:561
90050600irq/17-ehci_hcd0-21swapper/100:16:421
81600rcu_preempt8999-21ssh21:57:501
81600rcu_preempt27270-21ssh00:37:150
81600rcu_preempt2235-21snmpd23:11:170
81600rcu_preempt20962-21tr00:25:040
81600rcu_preempt16886-21ssh21:11:541
81600rcu_preempt12486-21ssh00:06:421
81600rcu_preempt0-21swapper/100:37:571
81600rcu_preempt0-21swapper/100:21:541
81600rcu_preempt0-21swapper/023:39:540
81600rcu_preempt0-21swapper/021:53:040
81590rcu_preempt7097-21ssh23:56:291
81590rcu_preempt16062-21ssh23:12:221
81590rcu_preempt16061-21df_inode19:04:570
81590rcu_preempt0-21swapper/123:16:491
81590rcu_preempt0-21swapper/122:52:331
81590rcu_preempt0-21swapper/121:54:391
81590rcu_preempt0-21swapper/119:49:561
81590rcu_preempt0-21swapper/100:11:141
81590rcu_preempt0-21swapper/023:28:530
81590rcu_preempt0-21swapper/020:20:060
81590rcu_preempt0-21swapper/020:04:570
81590rcu_preempt0-21swapper/000:15:190
151950590irq/31-eth0-tx-41ktimersoftd/023:23:390
81580rcu_preempt719-21ssh21:42:151
81580rcu_preempt27678-21ssh21:31:571
81580rcu_preempt27131-21ssh22:31:271
81580rcu_preempt24734-1kworker/0:2H22:24:080
81580rcu_preempt0-21swapper/122:38:231
81580rcu_preempt0-21swapper/122:16:071
81580rcu_preempt0-21swapper/121:35:541
81580rcu_preempt0-21swapper/121:00:011
81580rcu_preempt0-21swapper/119:34:551
81580rcu_preempt0-21swapper/100:25:081
81580rcu_preempt0-21swapper/023:05:050
81570rcu_preempt13590-21ssh22:05:291
81570rcu_preempt0-21swapper/122:57:111
81570rcu_preempt0-21swapper/122:40:531
81570rcu_preempt0-21swapper/121:44:511
81570rcu_preempt0-21swapper/120:52:211
81570rcu_preempt0-21swapper/120:35:011
81570rcu_preempt0-21swapper/119:40:321
81570rcu_preempt0-21swapper/119:29:591
81570rcu_preempt0-21swapper/100:32:081
81570rcu_preempt0-21swapper/022:35:050
81570rcu_preempt0-21swapper/021:59:520
81570rcu_preempt0-21swapper/021:41:590
81570rcu_preempt0-21swapper/021:01:200
81570rcu_preempt0-21swapper/019:29:560
81560rcu_preempt8386-21ssh22:58:040
81560rcu_preempt2839-21ssh22:47:121
81560rcu_preempt23715-21if_can119:34:580
81560rcu_preempt12865-21ssh23:05:291
81560rcu_preempt0-21swapper/119:45:041
81560rcu_preempt0-21swapper/022:31:100
16949995644cyclictest946-21usb-storage20:13:321
81550rcu_preempt6998-21ssh21:54:470
81550rcu_preempt26062-21ssh23:30:460
81550rcu_preempt18669-21ssh23:17:120
81550rcu_preempt0-21swapper/123:03:031
81550rcu_preempt0-21swapper/121:04:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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