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2026-07-19 - 21:54
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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 all highest latencies:
System rack4slot2.osadl.org (updated Sun Jul 19, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010960,0irq/46-4a10000015073-1kworker/u3:107:03:470
241782920,0sleep024047-1kworker/u3:110:31:580
233062920,0sleep04933-1kworker/u3:208:54:160
18723999259,0cyclictest0-21swapper09:34:040
18723999258,0cyclictest0-21swapper10:44:440
18723999159,0cyclictest0-21swapper11:24:340
18723999158,0cyclictest0-21swapper07:54:260
158462910,0sleep015513-1kworker/u3:008:33:400
7450900,0irq/46-4a10000020998-21sendmail-msp11:59:420
18723999059,0cyclictest0-21swapper11:44:160
7450890,0irq/46-4a10000022744-21sendmail-msp07:18:450
7350890,0irq/45-4a10000027837-21sendmail-msp12:19:170
18723998955,0cyclictest0-21swapper07:34:420
7450880,0irq/46-4a10000031270-21sendmail-msp09:18:450
7450880,0irq/46-4a10000012567-21ls08:23:460
7450880,0irq/46-4a10000011302-21fw_conntrack11:29:110
19922880,0sleep01952-1kworker/u3:212:37:160
18723998857,0cyclictest0-21swapper09:24:060
18723998856,0cyclictest0-21swapper11:49:070
18723998856,0cyclictest0-21swapper11:04:110
18723998856,0cyclictest0-21swapper07:49:280
18723998854,0cyclictest0-21swapper07:19:080
7450870,0irq/46-4a1000008687-21runrttasks08:10:580
7450870,0irq/46-4a1000008330-21sendmail_mailtr11:19:450
7450870,0irq/46-4a10000029569-21sendmail-msp07:39:310
7450870,0irq/46-4a10000027289-21runrttasks12:14:400
7450870,0irq/46-4a10000026247-21/usr/sbin/munin10:38:510
7450870,0irq/46-4a10000021779-21/usr/sbin/munin10:24:270
7450870,0irq/46-4a10000021583-21idleruntime08:49:140
7350870,0irq/45-4a10000012789-1kworker/u3:110:01:520
302552870,0chrt27493-1kworker/u3:112:24:220
18723998765,0cyclictest0-21swapper12:04:070
18723998756,0cyclictest0-21swapper09:44:340
18723998756,0cyclictest0-21swapper07:29:280
18723998755,0cyclictest0-21swapper07:44:350
18723998754,0cyclictest0-21swapper10:49:200
18723998754,0cyclictest0-21swapper09:09:190
18723998753,0cyclictest0-21swapper08:14:370
7450860,0irq/46-4a10000031804-21fw_forwarded_lo12:29:130
7450860,0irq/46-4a10000025805-21runrttasks09:01:110
7450860,0irq/46-4a10000019502-21wget11:53:540
7450860,0irq/46-4a10000017252-1kworker/u3:108:39:180
7450860,0irq/46-4a10000012754-21runrttasks11:33:550
7350860,0irq/45-4a1000006062-21diskstats09:39:060
7350860,0irq/45-4a100000470-21runrttasks07:59:480
7350860,0irq/45-4a10000020038-21sshd10:19:310
18723998666,0cyclictest0-21swapper10:09:260
18723998656,0cyclictest0-21swapper10:37:450
167602867,0sleep016810-21sendmail_mailqu08:34:340
7450850,0irq/46-4a1000009847-21seq09:49:280
7450850,0irq/46-4a10000031681-21df_inode09:19:030
7450850,0irq/46-4a1000002503-21cstates09:28:560
7450850,0irq/46-4a10000015349-21users10:04:400
7450850,0irq/46-4a10000014165-21sendmail-msp11:39:040
7450850,0irq/46-4a1000001228-21meminfo10:59:280
7350850,0irq/45-4a100000453-21cron10:58:400
2043528510,0sleep019426-21/usr/sbin/munin08:44:400
7450840,0irq/46-4a1000006333-21memory11:14:230
7450840,0irq/46-4a1000005846-21aten_r4power_vo08:03:550
7450840,0irq/46-4a1000004848-21mailstats11:09:320
7450840,0irq/46-4a10000025212-21runrttasks12:09:280
7450840,0irq/46-4a10000024538-21latency_hist07:23:450
7450840,0irq/46-4a10000019246-21tune2fs07:09:090
7450840,0irq/46-4a10000018287-21meminfo10:14:210
7450840,0irq/46-4a10000010772-21sendmail-msp08:19:280
7350840,0irq/45-4a10000012444-21munin-run09:58:450
7450830,0irq/46-4a10000026629-21tune2fs09:04:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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