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2026-04-10 - 14:22
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 50 highest latencies:
System rack4slot2.osadl.org (updated Fri Apr 10, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502520,0irq/46-4a10000024849-1kworker/u3:007:03:380
26823999256,0cyclictest0-21swapper07:21:090
935529126,0sleep09356-21memory10:56:250
26823999159,0cyclictest0-21swapper07:06:400
26823999157,0cyclictest0-21swapper07:16:200
26823999155,0cyclictest0-21swapper07:51:390
26823999057,0cyclictest0-21swapper10:41:350
26823999057,0cyclictest0-21swapper07:56:180
26823999056,0cyclictest0-21swapper12:01:040
7350890,0irq/45-4a10000026473-21ntpdc10:11:300
7350890,0irq/45-4a10000014487-1kworker/u3:109:36:320
26823998960,0cyclictest0-21swapper08:41:070
26823998956,0cyclictest0-21swapper12:21:390
26823998956,0cyclictest0-21swapper09:26:140
7350880,0irq/45-4a1000005780-1kworker/u3:107:46:020
7350880,0irq/45-4a1000002972-21users09:01:410
26823998857,0cyclictest0-21swapper11:40:520
26823998857,0cyclictest0-21swapper07:26:350
26823998855,0cyclictest0-21swapper11:11:150
26823998855,0cyclictest0-21swapper09:11:280
26823998854,0cyclictest0-21swapper08:51:410
26823998854,0cyclictest0-21swapper08:46:320
26823998756,0cyclictest0-21swapper10:16:160
26823998756,0cyclictest0-21swapper08:56:170
26823998754,0cyclictest0-21swapper08:01:240
7350860,0irq/45-4a10000029792-21irqstats07:11:380
26823998665,0cyclictest0-21swapper09:46:060
26823998654,0cyclictest0-21swapper10:36:250
26823998653,0cyclictest0-21swapper10:26:330
26823998653,0cyclictest0-21swapper09:31:220
7450850,0irq/46-4a10000021150-21fw_conntrack09:56:130
26823998556,0cyclictest0-21swapper09:16:360
7450840,0irq/46-4a100000919-21open_files10:31:320
7450840,0irq/46-4a1000007669-21ls10:51:290
7350840,0irq/45-4a10000029345-21cut11:55:520
7350840,0irq/45-4a10000022827-21grep10:01:100
7350840,0irq/45-4a10000012-21ksoftirqd/007:41:280
26823998453,0cyclictest0-21swapper08:15:580
26823998451,0cyclictest0-21swapper11:51:150
26823998451,0cyclictest0-21swapper11:46:050
26823998443,0cyclictest0-21swapper07:31:210
7450830,0irq/46-4a1000007705-21ntpq12:26:270
7450830,0irq/46-4a1000005230-21grep09:10:450
7450830,0irq/46-4a1000005197-21latency_hist10:45:460
7450830,0irq/46-4a100000460-21snmpd11:04:450
7450830,0irq/46-4a1000003661-21wget12:15:510
7450830,0irq/46-4a10000024418-21seq08:31:050
7450830,0irq/46-4a10000015862-21diskstats08:06:050
7350830,0irq/45-4a10000021225-21irqstats11:31:190
7350830,0irq/45-4a10000018152-21/usr/sbin/munin11:21:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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