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2026-06-25 - 10:09
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Thu Jun 25, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502610,0irq/46-4a100000151382sleep019:05:480
7450890,0irq/46-4a10000026361-1kworker/u3:100:29:510
252982847,0sleep025322-21perl21:10:100
7450830,0irq/46-4a10000026055-1kworker/u3:121:15:400
15654998358,0cyclictest0-21swapper19:44:490
7450800,0irq/46-4a100000438-21snmpd23:01:170
7450790,0irq/46-4a1000007748-1kworker/u3:120:20:480
7450790,0irq/46-4a10000030314-21df_inode19:50:010
7450790,0irq/46-4a10000026592-21aten_r4power_cu00:24:490
7450790,0irq/46-4a10000022172sleep020:02:010
7450790,0irq/46-4a10000022058-1kworker/u3:100:10:330
7450790,0irq/46-4a10000021360-21sendmail-msp21:00:200
7450790,0irq/46-4a10000015430-1kworker/u3:019:25:210
7450790,0irq/46-4a10000014491-21munin-run23:49:400
7350790,0irq/45-4a10000019650-21munin-run19:19:430
7350790,0irq/45-4a100000192952sleep000:02:060
7450780,0irq/46-4a1000004233-21cron21:44:400
7450780,0irq/46-4a10000028734-1kworker/u3:020:10:160
7450780,0irq/46-4a10000026505-1kworker/u3:219:56:170
7450780,0irq/46-4a10000024247-21runrttasks00:15:480
7450780,0irq/46-4a10000022703-1kworker/u3:022:42:560
7450780,0irq/46-4a10000019563-1kworker/u3:119:40:460
7450780,0irq/46-4a1000001661-21ntp_states21:35:290
7450780,0irq/46-4a10000011729-1kworker/u3:122:10:190
7450780,0irq/46-4a10000010032-21/usr/sbin/munin22:00:250
7450770,0irq/46-4a10000029799-1kworker/u3:121:55:190
7450770,0irq/46-4a10000028491-1kworker/u3:000:35:020
7450770,0irq/46-4a10000024664-1kworker/u3:122:51:140
7450770,0irq/46-4a100000243942chrt19:31:470
7450770,0irq/46-4a10000017459-1kworker/u3:020:50:260
7450770,0irq/46-4a100000159322sleep020:42:250
7350770,0irq/45-4a10000019607-21cron22:29:410
15654997751,0cyclictest0-21swapper22:14:510
7450760,0irq/46-4a1000009590-1kworker/u3:220:25:260
7450760,0irq/46-4a1000004256-1kworker/u3:220:14:560
7450760,0irq/46-4a1000003818-1kworker/u3:023:50:360
7450760,0irq/46-4a100000259732chrt22:45:450
7450760,0irq/46-4a10000014448-1kworker/u3:022:23:510
7450750,0irq/46-4a1000005746-1kworker/u3:223:29:590
7450750,0irq/46-4a1000005308-21sed21:45:360
7450750,0irq/46-4a10000016238-1kworker/u3:122:35:230
7450740,0irq/46-4a100000999-21wget23:09:510
7450740,0irq/46-4a10000028734-1kworker/u3:020:35:280
7450740,0irq/46-4a100000250672chrt19:34:550
7450740,0irq/46-4a10000019961-1kworker/u3:222:30:300
7450740,0irq/46-4a10000019563-1kworker/u3:119:20:400
7450740,0irq/46-4a100000125632chrt23:42:590
7350740,0irq/45-4a1000003485-21mailstats23:15:330
7350740,0irq/45-4a10000026138-21seq00:22:120
7350740,0irq/45-4a10000020784-21unixbench_singl00:05:360
7450730,0irq/46-4a1000005746-1kworker/u3:223:29:400
7450730,0irq/46-4a1000005565-21seq23:21:320
7350730,0irq/45-4a100000438-21snmpd22:56:160
7350730,0irq/45-4a1000002890-21df20:04:550
7450720,0irq/46-4a10000021841-1kworker/u3:021:25:290
7350720,0irq/45-4a100000125812sleep022:08:070
7350720,0irq/45-4a10000011911-21ntpq20:30:300
247302720,0sleep024340-1kworker/u3:221:09:360
7450710,0irq/46-4a10000021841-1kworker/u3:021:30:200
7450710,0irq/46-4a10000020575-21find20:55:320
7450710,0irq/46-4a10000016386-21runrttasks20:44:520
7350710,0irq/45-4a10000031829-21cpu23:04:540
7350710,0irq/45-4a10000028197-21sendmail-msp21:19:470
7450700,0irq/46-4a10000073082sleep021:51:540
7450700,0irq/46-4a10000013856-1kworker/u3:123:54:500
7450700,0irq/46-4a10000010777-21sshd23:37:260
7350690,0irq/45-4a10000015848-21/usr/sbin/munin19:09:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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