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2026-06-24 - 12:03
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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 all highest latencies:
System rack4slot2.osadl.org (updated Wed Jun 24, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a1000006913-21runrttasks19:08:590
7350970,0irq/45-4a1000009583-21egrep22:24:590
7350940,0irq/45-4a1000001513-21/usr/sbin/munin22:00:280
185502930,0sleep08046-1kworker/u3:119:40:260
7350900,0irq/45-4a1000001499-21/usr/sbin/munin23:35:250
7450860,0irq/46-4a1000007070-21sed22:15:450
7450860,0irq/46-4a10000014254-21runrttasks21:03:110
39472860,0sleep03072-1kworker/u3:022:07:480
165752860,0sleep015957-1kworker/u3:221:10:040
7450850,0irq/46-4a10000019602-21sendmail-msp21:20:220
7350850,0irq/45-4a10000021564-21/usr/sbin/munin22:59:560
124282850,0sleep010676-1kworker/u3:219:22:050
7450840,0irq/46-4a1000008140-21grep22:20:140
7450840,0irq/46-4a100000438-21snmpd00:04:510
7450840,0irq/46-4a10000024676-21cron21:34:420
7350840,0irq/45-4a10000028132-21sendmail-msp23:20:000
7350840,0irq/45-4a10000027339-21/usr/sbin/munin23:15:350
123782840,0sleep010855-1kworker/u3:222:31:530
93492838,0sleep09325-21munin-run23:59:470
7450830,0irq/46-4a10000030139-21expr20:14:550
7450830,0irq/46-4a10000029943-21/usr/sbin/munin21:50:530
7450830,0irq/46-4a10000012069-21swap20:55:400
7350830,0irq/45-4a10000025061-21df20:00:090
7350830,0irq/45-4a10000015183-21load22:40:290
6152830,0sleep031466-1kworker/u3:021:58:350
7450820,0irq/46-4a1000008570-21runrttasks19:13:270
7450820,0irq/46-4a1000007043-21timerwakeupswit20:40:460
7450820,0irq/46-4a100000438-21snmpd20:48:250
7450820,0irq/46-4a100000438-21snmpd19:51:210
7450820,0irq/46-4a100000438-21snmpd00:30:090
7450820,0irq/46-4a100000438-21snmpd00:14:570
7450820,0irq/46-4a10000031992-21chrt20:20:140
7450820,0irq/46-4a10000030532-21grep23:25:240
7450820,0irq/46-4a1000002916-21df_inode20:30:040
7450820,0irq/46-4a1000002500-21sendmail-msp23:40:010
7450820,0irq/46-4a10000022096-21ntpq00:35:320
7450820,0irq/46-4a10000017730-1kworker/u3:121:38:200
7450820,0irq/46-4a10000014945-21grep19:30:090
7450820,0irq/46-4a10000010676-1kworker/u3:219:19:220
7450820,0irq/46-4a10000010081-21memory00:00:350
7350820,0irq/45-4a10000012929-21/usr/sbin/munin00:09:540
7450810,0irq/46-4a1000005131-21ps20:35:340
7450810,0irq/46-4a100000438-21snmpd00:20:020
7450810,0irq/46-4a10000031935-21df_inode23:30:010
7450810,0irq/46-4a10000027486-21/usr/sbin/munin20:05:380
7450810,0irq/46-4a10000024204-1kworker/u3:123:11:060
7450810,0irq/46-4a10000023933-21grep23:05:350
7450810,0irq/46-4a10000021728-21chrt21:25:050
7450810,0irq/46-4a10000019653-21cut22:54:470
7450810,0irq/46-4a10000019551-21cron21:19:420
7450810,0irq/46-4a10000017886-21sendmail19:39:440
7450810,0irq/46-4a10000013419-21seq19:25:210
7450800,0irq/46-4a1000009076-1kworker/u3:220:52:120
7450800,0irq/46-4a1000004600-21df_abs23:45:030
7450800,0irq/46-4a10000028049-1kworker/u3:123:50:030
7450800,0irq/46-4a10000026432-21sendmail-msp21:40:090
7450800,0irq/46-4a10000023827-21open_files19:55:320
7450800,0irq/46-4a10000018425-21grep22:50:120
7450800,0irq/46-4a10000016670-21sort22:45:090
7450800,0irq/46-4a10000015292-21/usr/sbin/munin21:05:320
7450800,0irq/46-4a1000001374-21perl20:25:150
7450800,0irq/46-4a10000010855-1kworker/u3:222:36:210
7450790,0irq/46-4a1000004577-21df_abs22:10:000
7450790,0irq/46-4a10000028445-21/usr/sbin/munin20:09:590
7450790,0irq/46-4a10000024419-1kworker/u3:021:45:010
7450790,0irq/46-4a10000019798-21wget19:44:540
7450790,0irq/46-4a10000018209-21seq00:24:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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