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2026-03-22 - 03:47
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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 Mar 22, 2026 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850890irq/17-ehci_hcd1099-21jbd2/sda1-822:09:261
81790rcu_preempt0-21swapper/123:12:521
81780rcu_preempt13407-21ssh21:26:421
81750rcu_preempt417-21ntp_states23:04:501
147950750irq/31-eth0-tx-0-21swapper/122:54:091
81730rcu_preempt21556-21mailstats20:04:521
81720rcu_preempt7942-21cat19:14:261
81710rcu_preempt26093-21kworker/1:222:28:271
81710rcu_preempt0-21swapper/122:54:451
81700rcu_preempt5912-21diskmemload23:26:010
81700rcu_preempt18187-21sh22:37:380
81700rcu_preempt18187-21sh22:37:380
81700rcu_preempt0-21swapper/123:56:031
81700rcu_preempt0-21swapper/119:54:421
81700rcu_preempt0-21swapper/023:56:580
81700rcu_preempt0-21swapper/023:09:510
81700rcu_preempt0-21swapper/022:47:470
81700rcu_preempt0-21swapper/020:24:490
81700rcu_preempt0-21swapper/000:03:260
81690rcu_preempt26555-21ssh21:51:471
81690rcu_preempt14958-21ssh23:33:080
81690rcu_preempt10380-21sh00:28:271
81690rcu_preempt0-21swapper/121:44:511
81690rcu_preempt0-21swapper/100:39:521
81690rcu_preempt0-21swapper/000:34:540
81690rcu_preempt0-21swapper/000:33:440
81680rcu_preempt5912-21diskmemload23:34:391
81680rcu_preempt31698-21ssh23:03:450
81680rcu_preempt0-21swapper/021:36:330
81680rcu_preempt0-21swapper/019:09:410
81670rcu_preempt5912-21diskmemload22:38:111
81670rcu_preempt5912-21diskmemload22:38:111
81670rcu_preempt19198-21ssh23:39:570
81670rcu_preempt0-21swapper/123:19:491
81670rcu_preempt0-21swapper/121:35:121
81670rcu_preempt0-21swapper/100:14:491
81660rcu_preempt30967-21ssh21:59:490
81660rcu_preempt28304-21ssh21:54:501
81660rcu_preempt24018-21/usr/sbin/munin22:49:271
81660rcu_preempt14379-21latency_hist19:39:271
81660rcu_preempt0-21swapper/123:48:521
81660rcu_preempt0-21swapper/122:39:571
81650rcu_preempt7316-21ssh22:16:200
81650rcu_preempt22966-21sh23:48:330
81650rcu_preempt0-21swapper/121:40:021
81650rcu_preempt0-21swapper/121:04:401
81650rcu_preempt0-21swapper/119:29:511
81650rcu_preempt0-21swapper/023:35:490
81650rcu_preempt0-21swapper/000:07:510
81640rcu_preempt9970-21timerandwakeup21:19:510
81640rcu_preempt20557-21munin-run20:04:271
81640rcu_preempt0-21swapper/123:02:381
81640rcu_preempt0-21swapper/122:09:431
81640rcu_preempt0-21swapper/120:48:571
81640rcu_preempt0-21swapper/120:34:471
81640rcu_preempt0-21swapper/120:14:471
81640rcu_preempt0-21swapper/023:22:370
147650640irq/28-eth0-rx-945-21usb-storage21:33:480
81630rcu_preempt7433-21ssh22:16:471
81630rcu_preempt14362-21ssh23:31:011
81630rcu_preempt12993-21munin-run19:34:260
81630rcu_preempt0-21swapper/121:19:471
81630rcu_preempt0-21swapper/120:12:361
81630rcu_preempt0-21swapper/022:24:440
81630rcu_preempt0-21swapper/022:11:170
81620rcu_preempt28440-21ssh23:59:341
81620rcu_preempt24736-21ssh23:50:381
81620rcu_preempt0-21swapper/122:22:141
81620rcu_preempt0-21swapper/122:00:471
81620rcu_preempt0-21swapper/023:49:460
81620rcu_preempt0-21swapper/023:15:080
81620rcu_preempt0-21swapper/021:50:590
81620rcu_preempt0-21swapper/019:54:420
81610rcu_preempt617-21ssh00:07:311
81610rcu_preempt1947-21ssh00:09:470
81610rcu_preempt11782-21ssh23:26:261
81610rcu_preempt0-21swapper/120:54:451
81610rcu_preempt0-21swapper/100:35:011
81610rcu_preempt0-21swapper/100:32:111
81610rcu_preempt0-21swapper/022:05:510
81610rcu_preempt0-21swapper/021:18:530
81610rcu_preempt0-21swapper/019:24:460
81600rcu_preempt7002-21ssh00:20:131
81600rcu_preempt15007-21ssh22:30:261
81600rcu_preempt0-21swapper/119:14:451
81600rcu_preempt0-21swapper/022:57:180
81600rcu_preempt0-21swapper/022:49:310
81600rcu_preempt0-21swapper/021:49:270
81600rcu_preempt0-21swapper/021:09:510
81600rcu_preempt0-21swapper/021:04:430
81600rcu_preempt0-21swapper/019:39:480
81590rcu_preempt9182-21processes22:19:510
81590rcu_preempt19262-21ssh23:40:101
81590rcu_preempt15536-21ssh21:30:211
81590rcu_preempt0-21swapper/123:18:561
81590rcu_preempt0-21swapper/121:09:501
81590rcu_preempt0-21swapper/120:29:441
81590rcu_preempt0-21swapper/000:39:530
81590rcu_preempt0-21swapper/000:26:330
81580rcu_preempt0-21swapper/121:17:101
81580rcu_preempt0-21swapper/120:28:111
81580rcu_preempt0-21swapper/120:19:481
81580rcu_preempt0-21swapper/021:44:150
81580rcu_preempt0-21swapper/020:39:520
81580rcu_preempt0-21swapper/020:29:500
81570rcu_preempt1319-21ssh00:09:281
81570rcu_preempt0-21swapper/120:49:271
81570rcu_preempt0-21swapper/119:52:201
81570rcu_preempt0-21swapper/119:19:361
81570rcu_preempt0-21swapper/021:27:200
81570rcu_preempt0-21swapper/020:59:490
81570rcu_preempt0-21swapper/020:19:440
81560rcu_preempt14317-21ls22:29:470
81560rcu_preempt0-21swapper/119:44:441
81560rcu_preempt0-21swapper/021:57:360
81560rcu_preempt0-21swapper/000:18:210
81550rcu_preempt31619-21proc_pri20:44:470
81550rcu_preempt19215-21ssh22:39:440
81550rcu_preempt0-21swapper/121:00:151
81550rcu_preempt0-21swapper/023:04:270
81550rcu_preempt0-21swapper/020:14:430
81550rcu_preempt0-21swapper/019:59:450
81550rcu_preempt0-21swapper/019:14:440
81550rcu_preempt0-21swapper/000:23:190
81540rcu_preempt0-21swapper/020:34:470
81540rcu_preempt0-21swapper/020:09:460
81540rcu_preempt0-21swapper/019:36:370
81530rcu_preempt11335-21ntp_states19:24:471
81530rcu_preempt0-21swapper/020:49:470
81530rcu_preempt0-21swapper/019:52:310
7946995249cyclictest945-21usb-storage20:04:380
81500rcu_preempt0-21swapper/020:55:030
81490rcu_preempt10055-21ntp_states19:19:480
81390rcu_preempt19-21ksoftirqd/120:39:411
89850370irq/17-ehci_hcd0-21swapper/019:44:550
794799332cyclictest0-21swapper/119:38:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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