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2026-04-25 - 13:07
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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 Sat Apr 25, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745011400,0irq/46-4a10000029479-1kworker/u3:119:04:100
129082920,0sleep011108-1kworker/u3:100:28:530
7450900,0irq/46-4a10000013806-21meminfo00:30:490
7350880,0irq/45-4a10000016914-21/usr/sbin/munin23:05:300
228942880,0chrt21274-1kworker/u3:021:46:520
7350870,0irq/45-4a1000004536-21sendmail20:55:090
7350870,0irq/45-4a10000020015-21aten_r4power_cu20:05:180
31275998756,0cyclictest0-21swapper22:45:500
7450860,0irq/46-4a1000004965-21sshd20:55:310
7450860,0irq/46-4a10000030116-21cron20:35:080
7450860,0irq/46-4a10000022805-21runrttasks20:11:130
7450860,0irq/46-4a1000001309-21wget23:55:180
7450860,0irq/46-4a10000011844-21fschecks_count22:50:360
7450860,0irq/46-4a10000010126-21grep21:10:350
268332860,0chrt26287-1kworker/u3:120:25:120
144322860,0sleep013322-1kworker/u3:022:57:230
7450850,0irq/46-4a100000518-21munin-setwarn19:10:100
7450850,0irq/46-4a10000032611-21chrt22:15:510
7450850,0irq/46-4a10000032529-1kworker/u3:222:23:520
7450850,0irq/46-4a1000003152-21df22:25:250
7450850,0irq/46-4a10000031007-21pluginstate22:10:590
7450850,0irq/46-4a10000029252-21ntp_offset22:05:560
7450850,0irq/46-4a10000026085-21ls23:31:050
7450850,0irq/46-4a10000019191-21mailstats21:36:040
7350850,0irq/45-4a1000004954-21chrt19:20:290
311372850,0sleep029904-1kworker/u3:220:36:010
7450840,0irq/46-4a100000786-1kworker/u3:119:12:500
7450840,0irq/46-4a100000460-21snmpd22:40:140
7450840,0irq/46-4a10000032518-21chrt23:50:460
7450840,0irq/46-4a10000027527-21/usr/sbin/munin23:35:550
7450840,0irq/46-4a1000002699-1kworker/u3:122:30:380
7450840,0irq/46-4a10000023559-21egrep23:25:200
7450840,0irq/46-4a10000020476-21tune2fs21:40:390
7450840,0irq/46-4a10000016027-1kworker/u3:123:02:210
7450840,0irq/46-4a10000015254-1kworker/u3:119:52:140
7450840,0irq/46-4a10000012334-21tr21:16:000
7450840,0irq/46-4a10000010107-21diskstats00:20:300
7350840,0irq/45-4a10000020426-21chrt23:15:370
302582840,0chrt28433-1kworker/u3:223:45:120
127382840,0chrt11176-1kworker/u3:119:42:350
7450830,0irq/46-4a1000009067-21chrt00:16:060
7450830,0irq/46-4a1000008627-21sed19:30:450
7450830,0irq/46-4a1000007576-21seq22:37:120
7450830,0irq/46-4a1000007313-21grep19:26:040
7450830,0irq/46-4a1000007188-21which21:01:000
7450830,0irq/46-4a1000004574-21ls19:20:110
7450830,0irq/46-4a10000031947-21grep20:40:120
7450830,0irq/46-4a10000028786-21chrt23:40:240
7450830,0irq/46-4a10000028149-21seq22:02:500
7450830,0irq/46-4a10000023867-21runrttasks20:15:350
7450830,0irq/46-4a10000022162-21perl23:20:360
7450830,0irq/46-4a1000002130-21swap20:46:070
7450830,0irq/46-4a10000017130-21irqstats21:30:450
7450830,0irq/46-4a10000016608-21/usr/sbin/munin19:55:270
7450830,0irq/46-4a10000015190-21df_abs21:25:280
7450830,0irq/46-4a10000013377-21cstates19:45:230
7450830,0irq/46-4a10000010197-21seq19:35:360
7450820,0irq/46-4a1000006819-21/usr/sbin/munin00:10:390
7450820,0irq/46-4a1000004973-21seq00:05:320
7450820,0irq/46-4a1000003563-21runrttasks00:00:470
7450820,0irq/46-4a10000024587-21runrttasks21:51:430
7450820,0irq/46-4a10000018838-21chrt23:10:460
7450820,0irq/46-4a10000018299-21date20:00:130
7450820,0irq/46-4a10000014342-21seq21:21:390
7350820,0irq/45-4a10000026469-21chrt21:58:030
7450810,0irq/46-4a1000008618-21latency21:05:470
7450810,0irq/46-4a10000026239-21chrt20:21:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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