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2026-04-05 - 06:12
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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 Sun Apr 05, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81840rcu_preempt0-21swapper/122:00:241
81730rcu_preempt24158-21sh00:38:360
81720rcu_preempt4781-21ssh00:00:250
81710rcu_preempt0-21swapper/023:50:310
81710rcu_preempt0-21swapper/000:44:370
81710rcu_preempt0-21swapper/000:30:220
147650710irq/28-eth0-rx-0-21swapper/119:11:371
147650710irq/28-eth0-rx-0-21swapper/119:11:371
81700rcu_preempt0-21swapper/023:39:490
81700rcu_preempt0-21swapper/022:45:180
81690rcu_preempt18731-21sh00:27:280
81690rcu_preempt0-21swapper/021:57:380
81680rcu_preempt30953-21munin-run21:45:040
81680rcu_preempt26337-21sh22:37:090
81670rcu_preempt14918-21diskmemload22:01:330
81670rcu_preempt0-21swapper/021:19:110
81660rcu_preempt29448-21ps21:40:281
81650rcu_preempt12528-21/usr/sbin/munin21:05:230
81650rcu_preempt0-21swapper/100:26:271
89850640irq/17-ehci_hcd0-21swapper/122:17:051
81640rcu_preempt0-21swapper/120:01:561
81640rcu_preempt0-21swapper/023:41:010
81640rcu_preempt0-21swapper/020:30:230
81630rcu_preempt972-21munin-run20:20:040
81630rcu_preempt26788-21ssh00:43:351
81630rcu_preempt10936-21ssh00:12:141
81630rcu_preempt0-21swapper/020:57:170
81630rcu_preempt0-21swapper/019:10:160
81630rcu_preempt0-21swapper/019:10:160
147850630irq/30-eth0-tx-0-21swapper/022:20:250
81620rcu_preempt27518-21ssh21:37:110
81620rcu_preempt23740-21ssh00:37:011
81620rcu_preempt0-21swapper/123:06:141
81620rcu_preempt0-21swapper/122:36:381
81620rcu_preempt0-21swapper/122:10:291
81620rcu_preempt0-21swapper/121:24:201
81620rcu_preempt0-21swapper/023:32:010
81620rcu_preempt0-21swapper/022:50:280
81620rcu_preempt0-21swapper/022:30:150
81620rcu_preempt0-21swapper/022:08:220
81620rcu_preempt0-21swapper/021:25:220
81610rcu_preempt5261-21ssh21:56:011
81610rcu_preempt4004-21ssh22:56:041
81610rcu_preempt32303-21ssh21:45:331
81610rcu_preempt18721-21ssh22:22:561
81610rcu_preempt14231-21munin-run22:15:040
81610rcu_preempt0-21swapper/123:43:041
81610rcu_preempt0-21swapper/123:20:271
81610rcu_preempt0-21swapper/122:45:161
81610rcu_preempt0-21swapper/122:05:231
81610rcu_preempt0-21swapper/121:10:291
81610rcu_preempt0-21swapper/120:55:281
81610rcu_preempt0-21swapper/119:55:191
81610rcu_preempt0-21swapper/100:00:271
81610rcu_preempt0-21swapper/022:40:220
81600rcu_preempt478-21ssh23:51:581
81600rcu_preempt26613-21ssh21:35:281
81600rcu_preempt25215-21ssh21:33:351
81600rcu_preempt15024-21ssh23:17:361
81600rcu_preempt15024-21ssh23:17:361
81600rcu_preempt12049-1kworker/0:1H21:30:240
81600rcu_preempt0-21swapper/123:31:491
81600rcu_preempt0-21swapper/123:00:161
81600rcu_preempt0-21swapper/122:50:411
81600rcu_preempt0-21swapper/023:02:260
81590rcu_preempt22022-21ssh21:26:081
81590rcu_preempt16240-21ssh00:23:181
81590rcu_preempt0-21swapper/123:45:301
81590rcu_preempt0-21swapper/122:43:301
81590rcu_preempt0-21swapper/122:34:461
81590rcu_preempt0-21swapper/121:51:381
81590rcu_preempt0-21swapper/120:08:391
81590rcu_preempt0-21swapper/100:15:501
81590rcu_preempt0-21swapper/100:09:001
81590rcu_preempt0-21swapper/023:58:500
81590rcu_preempt0-21swapper/023:15:290
81590rcu_preempt0-21swapper/023:15:290
81590rcu_preempt0-21swapper/023:10:200
81590rcu_preempt0-21swapper/019:25:220
81580rcu_preempt3445-21ssh23:58:031
81580rcu_preempt2576-21df20:25:180
81580rcu_preempt21220-21ssh22:27:201
81580rcu_preempt21017-21ssh22:26:360
81580rcu_preempt19628-21ssh21:22:220
81580rcu_preempt17328-21ssh21:18:551
81580rcu_preempt0-21swapper/123:36:471
81580rcu_preempt0-21swapper/120:50:251
81580rcu_preempt0-21swapper/120:25:241
81580rcu_preempt0-21swapper/120:22:041
81580rcu_preempt0-21swapper/120:15:141
81580rcu_preempt0-21swapper/119:35:311
81580rcu_preempt0-21swapper/119:15:251
81580rcu_preempt0-21swapper/023:05:320
81580rcu_preempt0-21swapper/022:16:530
81580rcu_preempt0-21swapper/021:46:240
81580rcu_preempt0-21swapper/019:50:290
81580rcu_preempt0-21swapper/000:20:340
81570rcu_preempt12300-21ssh00:15:240
81570rcu_preempt10894-21ssh00:11:470
81570rcu_preempt0-21swapper/123:11:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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