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2026-05-18 - 04:03
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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 highest latencies:
System rack4slot2.osadl.org (updated Mon May 18, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502800,0irq/46-4a10000012-21ksoftirqd/019:02:170
31409998755,0cyclictest0-21swapper23:29:300
86872866,0sleep08693-21ls00:14:470
7350850,0irq/45-4a10000014903-21awk19:49:150
7350840,0irq/45-4a1000005189-21tune2fs22:29:400
7350830,0irq/45-4a1000002915-21cron20:49:130
67902835,0sleep06793-21df_inode20:59:370
7450820,0irq/46-4a10000019296-21mailstats20:00:100
7350820,0irq/45-4a10000024176-21meminfo23:24:540
7350820,0irq/45-4a10000020167-21aten_r4power_cu21:39:240
7450810,0irq/46-4a100000460-21snmpd21:32:400
7450810,0irq/46-4a100000460-21snmpd20:57:270
7350810,0irq/45-4a10000021879-21/usr/sbin/munin23:19:290
7350810,0irq/45-4a1000001-21init21:56:100
7350810,0irq/45-4a1000001019-21cat19:09:280
103932810,0chrt9744-1kworker/u3:100:19:460
7450800,0irq/46-4a10000026605-21runrttasks20:22:140
7450800,0irq/46-4a10000025141-21cron20:19:140
7450800,0irq/46-4a10000011612-21/usr/sbin/munin22:50:050
7450800,0irq/46-4a10000011316-21runrttasks21:13:020
7350800,0irq/45-4a1000008092-21munin-plugin-st00:14:140
7350800,0irq/45-4a1000006483-21/usr/sbin/munin19:25:090
7350800,0irq/45-4a100000484-21runrttasks19:57:060
7350800,0irq/45-4a1000004394-21seq22:27:130
138312800,0sleep011165-1kworker/u3:021:19:480
136422805,0sleep013643-21diskstats22:54:380
7450790,0irq/46-4a1000004690-21seq19:19:160
7450790,0irq/46-4a100000460-21snmpd22:43:090
7450790,0irq/46-4a1000004068-21unixbench_singl20:50:100
7450790,0irq/46-4a10000032095-21latency_hist23:49:180
7450790,0irq/46-4a10000030666-21df_abs22:09:350
7450790,0irq/46-4a10000023363-1kworker/u3:121:49:470
7450790,0irq/46-4a10000011551-21latency_hist19:39:170
7450780,0irq/46-4a1000005954-1kworker/u3:021:05:060
7450780,0irq/46-4a10000032441-21diskstats22:14:360
7450780,0irq/46-4a10000029619-21ls22:05:090
7450780,0irq/46-4a1000002211-1kworker/u3:200:02:250
7450780,0irq/46-4a10000018965-21seq23:09:500
7450780,0irq/46-4a10000015760-21chrt21:25:040
7450780,0irq/46-4a10000015524-21/usr/sbin/munin19:49:490
7450780,0irq/46-4a10000014665-1kworker/u3:022:59:350
7450780,0irq/46-4a10000012287-21ntpq00:25:010
7350780,0irq/45-4a100000484-21runrttasks23:07:540
298562780,0chrt28563-1kworker/u3:120:30:590
7450770,0irq/46-4a1000009534-1kworker/u3:119:39:220
7450770,0irq/46-4a1000009049-21cat19:30:090
7450770,0irq/46-4a10000031884-1kworker/u3:222:19:350
7450770,0irq/46-4a10000031678-21chrt23:46:440
7450770,0irq/46-4a10000031353-21timerandwakeup20:35:100
7450770,0irq/46-4a1000002919-21chrt23:58:580
7450770,0irq/46-4a10000027817-21zcat23:35:050
7450770,0irq/46-4a10000027041-21aten_r4power_en21:59:250
7450770,0irq/46-4a10000026827-1kworker/u3:020:27:400
7450770,0irq/46-4a10000022960-21chrt21:45:250
7450770,0irq/46-4a10000021693-21runrttasks20:09:120
7450770,0irq/46-4a10000014880-21seq00:34:070
7350770,0irq/45-4a1000005718-21sed00:05:120
7450760,0irq/46-4a1000008085-21idleruntime-cro22:39:140
7450760,0irq/46-4a1000003587-1kworker/u3:219:19:570
7450760,0irq/46-4a10000031684-1kworker/u3:020:40:100
7450760,0irq/46-4a10000031570-21wget19:04:250
7450760,0irq/46-4a10000022335-21runrttasks20:09:500
7450760,0irq/46-4a10000020979-1kworker/u3:023:15:080
7450760,0irq/46-4a10000018237-1kworker/u3:121:34:460
7450760,0irq/46-4a10000012853-21chrt21:16:280
7450760,0irq/46-4a10000011158-21runrttasks22:46:410
7450750,0irq/46-4a10000028314-1kworker/u3:323:39:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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