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2026-06-02 - 03:19
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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 Tue Jun 02, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt8873-21turbostat.cron19:12:441
81790rcu_preempt8133-21grep21:13:151
81770rcu_preempt19-21ksoftirqd/123:29:171
81770rcu_preempt0-21swapper/122:23:111
81770rcu_preempt0-21swapper/122:13:131
81740rcu_preempt27051-21ssh21:48:030
81720rcu_preempt0-21swapper/000:38:130
81710rcu_preempt0-21swapper/020:18:110
81700rcu_preempt14161-21diskstats23:23:040
81700rcu_preempt0-21swapper/100:42:221
81700rcu_preempt0-21swapper/022:40:240
81690rcu_preempt20145-21ntp_states23:33:120
81690rcu_preempt19-21ksoftirqd/122:03:491
81690rcu_preempt0-21swapper/021:31:220
146650690irq/31-eth0-tx-945-21usb-storage21:56:520
146650690irq/31-eth0-tx-945-21usb-storage19:10:480
81680rcu_preempt0-21swapper/022:15:090
81670rcu_preempt0-21swapper/023:48:060
81670rcu_preempt0-21swapper/022:49:250
81670rcu_preempt0-21swapper/000:23:470
81660rcu_preempt8711-21ssh00:13:070
81660rcu_preempt3059-21ssh22:03:040
81660rcu_preempt19-21ksoftirqd/121:38:341
81660rcu_preempt0-21swapper/023:13:040
81660rcu_preempt0-21swapper/022:43:040
81660rcu_preempt0-21swapper/022:09:330
81650rcu_preempt11330-21ssh22:18:080
81640rcu_preempt16642-21df22:28:050
81640rcu_preempt0-21swapper/022:56:370
81640rcu_preempt0-21swapper/020:03:070
81640rcu_preempt0-21swapper/019:40:350
81630rcu_preempt26741-21ssh23:45:530
81630rcu_preempt0-21swapper/119:39:001
81630rcu_preempt0-21swapper/022:02:490
81630rcu_preempt0-21swapper/021:38:040
81630rcu_preempt0-21swapper/021:13:120
81630rcu_preempt0-21swapper/000:18:130
81620rcu_preempt11430-21sendmail19:22:480
81620rcu_preempt11406-21df23:18:060
81620rcu_preempt10570-21irqstats21:18:110
81610rcu_preempt29224-21ssh21:51:401
81610rcu_preempt12716-21munin-run19:27:480
81610rcu_preempt0-21swapper/123:45:271
81610rcu_preempt0-21swapper/100:02:201
81610rcu_preempt0-21swapper/023:09:260
81610rcu_preempt0-21swapper/000:31:000
81600rcu_preempt30537-21if_wlan022:53:091
81600rcu_preempt30267-21ssh21:53:081
81600rcu_preempt24122-21ssh21:42:531
81600rcu_preempt20968-21ssh22:35:221
81600rcu_preempt1943-21ssh23:58:470
81600rcu_preempt0-21swapper/123:34:321
81600rcu_preempt0-21swapper/122:51:301
81600rcu_preempt0-21swapper/122:43:091
81600rcu_preempt0-21swapper/121:59:031
81600rcu_preempt0-21swapper/120:59:151
81600rcu_preempt0-21swapper/100:35:171
81600rcu_preempt0-21swapper/100:26:201
81600rcu_preempt0-21swapper/100:14:041
81600rcu_preempt0-21swapper/100:08:591
81600rcu_preempt0-21swapper/023:06:280
81590rcu_preempt4801-21ssh23:05:191
81590rcu_preempt12842-21ssh22:20:301
81590rcu_preempt0-21swapper/123:54:421
81590rcu_preempt0-21swapper/123:51:241
81590rcu_preempt0-21swapper/123:23:101
81590rcu_preempt0-21swapper/123:13:451
81590rcu_preempt0-21swapper/123:10:281
81590rcu_preempt0-21swapper/122:58:161
81590rcu_preempt0-21swapper/122:28:311
81590rcu_preempt0-21swapper/122:08:051
81590rcu_preempt0-21swapper/121:30:281
81590rcu_preempt0-21swapper/121:04:461
81590rcu_preempt0-21swapper/120:07:101
81590rcu_preempt0-21swapper/119:36:241
81590rcu_preempt0-21swapper/100:18:281
81590rcu_preempt0-21swapper/100:05:461
81590rcu_preempt0-21swapper/023:55:240
81580rcu_preempt3891-21kernelversion00:03:090
81580rcu_preempt23918-21ssh22:40:561
81580rcu_preempt19979-21sh00:33:100
81580rcu_preempt19-21ksoftirqd/121:24:401
81580rcu_preempt15151-21ssh22:24:080
81580rcu_preempt0-21swapper/123:38:591
81580rcu_preempt0-21swapper/120:43:151
81580rcu_preempt0-21swapper/119:13:141
81580rcu_preempt0-21swapper/100:29:551
81580rcu_preempt0-21swapper/023:38:130
81580rcu_preempt0-21swapper/021:43:120
81580rcu_preempt0-21swapper/021:25:090
81580rcu_preempt0-21swapper/021:03:020
81580rcu_preempt0-21swapper/019:15:060
81580rcu_preempt0-21swapper/000:09:300
89950570irq/17-ehci_hcd945-21usb-storage19:31:350
81570rcu_preempt0-21swapper/121:35:281
81570rcu_preempt0-21swapper/121:19:291
81570rcu_preempt0-21swapper/120:18:051
81570rcu_preempt0-21swapper/119:58:101
81570rcu_preempt0-21swapper/021:36:360
81570rcu_preempt0-21swapper/021:08:150
81570rcu_preempt0-21swapper/020:38:090
81570rcu_preempt0-21swapper/020:33:050
81570rcu_preempt0-21swapper/020:23:030
81570rcu_preempt0-21swapper/019:37:100
81560rcu_preempt0-21swapper/123:21:491
81560rcu_preempt0-21swapper/121:09:141
81560rcu_preempt0-21swapper/022:36:420
81560rcu_preempt0-21swapper/020:28:060
81550rcu_preempt4377-21munin-run21:02:480
81550rcu_preempt2385-21ssh23:01:050
81550rcu_preempt0-21swapper/120:54:251
81550rcu_preempt0-21swapper/120:33:431
81550rcu_preempt0-21swapper/020:08:090
81550rcu_preempt0-21swapper/020:08:090
81540rcu_preempt25035-21ps20:13:120
81540rcu_preempt1795-21users20:48:171
81540rcu_preempt0-21swapper/120:27:331
81540rcu_preempt0-21swapper/119:43:581
81540rcu_preempt0-21swapper/023:29:240
146250530irq/28-eth0-rx-41ktimersoftd/020:44:430
8921995249cyclictest945-21usb-storage19:26:461
8921995248cyclictest945-21usb-storage19:30:401
81520rcu_preempt21139-21ntp_states19:58:120
8921995148cyclictest945-21usb-storage20:40:471
8921995148cyclictest945-21usb-storage20:32:131
8921995148cyclictest945-21usb-storage20:11:151
8921995148cyclictest945-21usb-storage20:11:151
8921995148cyclictest945-21usb-storage19:51:371
8921995148cyclictest945-21usb-storage19:20:521
8921995147cyclictest945-21usb-storage20:16:281
8920995047cyclictest945-21usb-storage19:48:130
81500rcu_preempt0-21swapper/119:53:351
81500rcu_preempt0-21swapper/020:57:050
81480rcu_preempt0-21swapper/019:54:030
146250480irq/28-eth0-rx-41ktimersoftd/020:49:440
8920994643cyclictest945-21usb-storage19:43:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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