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2026-05-09 - 08:52
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Sat May 09, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt19-21ksoftirqd/123:07:191
81760rcu_preempt19-21ksoftirqd/122:58:421
81740rcu_preempt19-21ksoftirqd/123:46:401
81730rcu_preempt0-21swapper/023:48:120
81720rcu_preempt6482-21diskmemload22:21:130
81720rcu_preempt0-21swapper/022:10:590
81710rcu_preempt8669-21ssh21:13:360
81710rcu_preempt0-21swapper/021:21:120
81700rcu_preempt13240-21sh23:20:150
81690rcu_preempt6482-21diskmemload00:37:130
81680rcu_preempt0-21swapper/119:07:361
81680rcu_preempt0-21swapper/100:32:421
81670rcu_preempt0-21swapper/100:16:051
81670rcu_preempt0-21swapper/000:35:150
81660rcu_preempt0-21swapper/123:51:571
81660rcu_preempt0-21swapper/122:30:291
81660rcu_preempt0-21swapper/021:07:180
89950650irq/17-ehci_hcd945-21usb-storage21:57:471
89950650irq/17-ehci_hcd0-21swapper/022:29:290
81650rcu_preempt0-21swapper/122:43:551
81650rcu_preempt0-21swapper/020:09:190
81650rcu_preempt0-21swapper/000:15:400
81640rcu_preempt6504-21memory00:06:080
81640rcu_preempt0-21swapper/121:41:081
81640rcu_preempt0-21swapper/121:24:591
81640rcu_preempt0-21swapper/100:38:111
81640rcu_preempt0-21swapper/019:11:240
81630rcu_preempt0-21swapper/122:38:291
81630rcu_preempt0-21swapper/121:29:501
81620rcu_preempt9867-21ssh22:14:311
81620rcu_preempt18597-21if_wlan021:31:060
81620rcu_preempt15986-21ssh23:25:121
81620rcu_preempt12948-21ssh23:19:161
81620rcu_preempt0-21swapper/122:17:381
81620rcu_preempt0-21swapper/122:07:031
81620rcu_preempt0-21swapper/121:13:501
81620rcu_preempt0-21swapper/100:22:221
81620rcu_preempt0-21swapper/022:40:340
81610rcu_preempt21080-21ssh22:35:041
81610rcu_preempt18277-21ssh23:28:580
81610rcu_preempt17631-21ssh23:26:431
81610rcu_preempt0-21swapper/123:04:481
81610rcu_preempt0-21swapper/100:28:441
81610rcu_preempt0-21swapper/100:02:581
81610rcu_preempt0-21swapper/023:23:330
81610rcu_preempt0-21swapper/023:07:380
81610rcu_preempt0-21swapper/021:56:080
81610rcu_preempt0-21swapper/021:40:500
81610rcu_preempt0-21swapper/021:30:150
81600rcu_preempt24792-21ssh23:41:021
81600rcu_preempt24053-21ssh23:39:381
81600rcu_preempt19-21ksoftirqd/121:31:101
81600rcu_preempt11163-21ssh21:17:181
81600rcu_preempt10540-21ssh23:15:331
81600rcu_preempt0-21swapper/122:25:321
81600rcu_preempt0-21swapper/121:36:111
81600rcu_preempt0-21swapper/022:51:100
81590rcu_preempt3397-21ssh22:01:171
81590rcu_preempt30839-21ssh21:53:001
81590rcu_preempt29021-21munin-run21:50:470
81590rcu_preempt19828-21sshd19:52:011
81590rcu_preempt11392-21ssh00:16:130
81590rcu_preempt0-21swapper/121:46:541
81590rcu_preempt0-21swapper/119:41:051
81590rcu_preempt0-21swapper/023:58:470
81590rcu_preempt0-21swapper/023:38:140
81590rcu_preempt0-21swapper/023:31:070
81590rcu_preempt0-21swapper/022:07:500
81590rcu_preempt0-21swapper/020:17:450
81580rcu_preempt7691-21ssh00:08:121
81580rcu_preempt31422-21ssh23:51:570
81580rcu_preempt29348-21ssh22:50:261
81580rcu_preempt21033-21ssh23:33:541
81580rcu_preempt0-21swapper/123:58:351
81580rcu_preempt0-21swapper/121:06:061
81580rcu_preempt0-21swapper/121:01:011
81580rcu_preempt0-21swapper/120:56:061
81580rcu_preempt0-21swapper/120:46:041
81580rcu_preempt0-21swapper/119:56:111
81580rcu_preempt0-21swapper/119:26:081
81580rcu_preempt0-21swapper/100:14:261
81580rcu_preempt0-21swapper/022:34:260
81580rcu_preempt0-21swapper/019:41:100
81580rcu_preempt0-21swapper/019:16:000
81580rcu_preempt0-21swapper/000:28:080
81570rcu_preempt3849-21ssh23:01:250
81570rcu_preempt25295-21ssh23:41:080
81570rcu_preempt0-21swapper/120:30:011
81570rcu_preempt0-21swapper/120:08:511
81570rcu_preempt0-21swapper/119:36:071
81570rcu_preempt0-21swapper/119:20:031
81570rcu_preempt0-21swapper/022:56:310
81570rcu_preempt0-21swapper/022:40:540
81570rcu_preempt0-21swapper/022:16:000
81570rcu_preempt0-21swapper/022:02:380
81570rcu_preempt0-21swapper/020:11:030
81570rcu_preempt0-21swapper/019:51:120
81570rcu_preempt0-21swapper/000:24:330
146650570irq/31-eth0-tx-4670-21apache219:07:550
81560rcu_preempt6482-21diskmemload00:05:150
81560rcu_preempt2589-21users20:51:121
81560rcu_preempt0-21swapper/120:21:141
81560rcu_preempt0-21swapper/120:14:141
81560rcu_preempt0-21swapper/119:46:051
81560rcu_preempt0-21swapper/119:11:041
81560rcu_preempt0-21swapper/022:46:150
81560rcu_preempt0-21swapper/021:39:490
81560rcu_preempt0-21swapper/021:16:140
81560rcu_preempt0-21swapper/020:41:520
81560rcu_preempt0-21swapper/019:56:100
81560rcu_preempt0-21swapper/019:26:030
81550rcu_preempt0-21swapper/122:51:371
81550rcu_preempt0-21swapper/023:11:440
81550rcu_preempt0-21swapper/021:50:500
81550rcu_preempt0-21swapper/020:52:050
81540rcu_preempt14778-21sshd19:32:011
81530rcu_preempt4920-21ps21:01:120
81530rcu_preempt26889-21memory20:21:090
81530rcu_preempt0-21swapper/020:58:490
8503995148cyclictest945-21usb-storage20:32:491
81510rcu_preempt11741-21memory19:21:081
81510rcu_preempt0-21swapper/020:46:050
81510rcu_preempt0-21swapper/019:48:530
8503995047cyclictest945-21usb-storage20:17:131
8502995046cyclictest945-21usb-storage20:33:030
81500rcu_preempt32093-21ntp_states20:41:091
8502994946cyclictest945-21usb-storage20:36:100
8503994844cyclictest945-21usb-storage20:40:421
8502994845cyclictest945-21usb-storage20:01:020
81480rcu_preempt13925-21df_inode19:31:010
81480rcu_preempt0-21swapper/020:30:200
8502994542cyclictest945-21usb-storage19:21:020
81450rcu_preempt15210-21fw_forwarded_lo19:36:020
8503994440cyclictest945-21usb-storage20:05:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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