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2026-04-24 - 11:08
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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 50 highest latencies:
System rack4slot2.osadl.org (updated Fri Apr 24, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502140,0irq/45-4a10000022897-21kworker/0:419:00:330
7350940,0irq/45-4a1000003471-21/usr/sbin/munin22:45:190
275382940,0sleep027193-1kworker/u3:223:55:240
124322937,0sleep012457-21/usr/sbin/munin20:00:390
7350910,0irq/45-4a10000028795-21runrttasks20:48:540
7450900,0irq/46-4a10000032371-21cron21:00:100
7450900,0irq/46-4a10000021841-1kworker/u3:120:29:470
7450900,0irq/46-4a10000021211-21seq22:00:570
7450900,0irq/46-4a10000019162-21chrt23:30:350
7450900,0irq/46-4a1000001640-21munin-run21:05:110
200442900,0sleep019687-1kworker/u3:121:57:070
7450890,0irq/46-4a1000008462-1kworker/u3:219:53:060
7450890,0irq/46-4a100000785-21/usr/sbin/munin19:26:000
7450890,0irq/46-4a1000006656-1kworker/u3:221:21:140
7450890,0irq/46-4a10000023812-21cron20:35:100
7450890,0irq/46-4a1000001793-21hostname19:30:220
7450890,0irq/46-4a10000012886-21sendmail_mailtr21:36:080
7450880,0irq/46-4a1000006751-21cron00:30:090
7450880,0irq/46-4a1000004874-1kworker/u3:121:17:570
7450880,0irq/46-4a1000003877-21grep21:10:400
7450880,0irq/46-4a10000032022-1kworker/u3:200:09:110
7450880,0irq/46-4a10000029689-21ls00:00:490
7450880,0irq/46-4a10000024181-21df22:10:300
7450880,0irq/46-4a10000022796-1kworker/u3:223:44:330
7450880,0irq/46-4a10000016875-1kworker/u3:023:26:430
7450880,0irq/46-4a10000014181-21ls20:05:460
7450870,0irq/46-4a1000009164-21chrt21:25:510
7450870,0irq/46-4a1000008462-1kworker/u3:219:58:300
7450870,0irq/46-4a1000007350-21tune2fs00:30:420
7450870,0irq/46-4a1000005647-21idleruntime22:50:450
7450870,0irq/46-4a1000003795-21df_inode00:20:300
7450870,0irq/46-4a10000029683-21grep19:15:460
7450870,0irq/46-4a10000027180-21interrupts19:10:280
7450870,0irq/46-4a10000024785-21grep20:36:020
7450870,0irq/46-4a10000020529-21ls23:35:150
7350870,0irq/45-4a1000005682-21if_eth019:40:450
7450860,0irq/46-4a1000009210-21meminfo23:00:520
7450860,0irq/46-4a1000007829-21wc22:56:050
7450860,0irq/46-4a1000007171-21runrttasks19:45:300
7450860,0irq/46-4a10000029521-21fschecks_time22:25:380
7450860,0irq/46-4a10000029310-21df_abs20:50:280
7450860,0irq/46-4a1000002745-21sort21:06:110
7450860,0irq/46-4a10000024426-21/usr/sbin/munin23:45:420
7450860,0irq/46-4a10000022794-21grep22:05:490
7450860,0irq/46-4a10000019973-21sshd20:21:340
7450860,0irq/46-4a1000001479-21chrt22:38:550
7450860,0irq/46-4a10000014048-21sshd23:15:330
7450860,0irq/46-4a10000010253-21wc23:05:130
7350860,0irq/45-4a10000031417-21runrttasks19:20:520
182112860,0chrt15291-1kworker/u3:220:16:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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