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2026-09-24 - 06:38
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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 Thu Sep 24, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a10000024985-21runrttasks19:06:310
25388998554,0cyclictest0-21swapper00:20:080
7450840,0irq/46-4a100000367-21sendmail-msp22:39:300
3195428411,0sleep031978-21proc_pri19:25:180
7350830,0irq/45-4a100000793-21diskstats22:39:530
7350820,0irq/45-4a10000012887-21fw_conntrack21:40:030
7350810,0irq/45-4a1000009248-21df_abs23:04:470
7350810,0irq/45-4a1000005921-21df_inode21:19:560
7350810,0irq/45-4a1000004316-21perl19:40:010
7350810,0irq/45-4a10000019264-21/usr/sbin/munin23:35:330
7350810,0irq/45-4a10000016143-21diskstats20:14:530
7350810,0irq/45-4a10000012725-21diskstats23:14:490
7450800,0irq/46-4a10000011670-21grep21:35:250
7350800,0irq/45-4a1000002467-21df_abs21:09:510
294332806,0sleep029467-21latency_hist19:19:350
7450790,0irq/46-4a100000442-21snmpd21:45:310
7450790,0irq/46-4a10000024076-21chrt23:48:020
7350790,0irq/45-4a1000008169-21mailstats00:35:220
7450780,0irq/46-4a100000580-21wget19:29:440
7450780,0irq/46-4a10000030643-1kworker/u3:022:32:480
7350780,0irq/45-4a1000007521-21df22:59:470
7350780,0irq/45-4a100000685-21df00:14:440
7350780,0irq/45-4a10000032635-21sshd21:03:130
7350780,0irq/45-4a10000026337-21sed22:19:480
222532780,0sleep022081-1kworker/u3:022:07:090
7450770,0irq/46-4a10000029502-21runrttasks20:54:340
7450770,0irq/46-4a10000025986-21munin-run20:44:290
7450770,0irq/46-4a10000024202-21sshd20:39:150
7450770,0irq/46-4a10000017561-21/usr/sbin/munin20:20:190
7350770,0irq/45-4a1000009295-21sed21:29:530
7350770,0irq/45-4a1000003903-21aten_r4power_cu21:14:380
7450760,0irq/46-4a1000006082-1kworker/u3:219:45:090
7450760,0irq/46-4a1000005256-1kworker/u3:122:56:590
7450760,0irq/46-4a10000017182-1kworker/u3:021:54:410
7450760,0irq/46-4a1000001217-21seq21:05:240
7350760,0irq/45-4a10000029988-21fw_forwarded_lo00:05:020
318222760,0chrt30636-1kworker/u3:000:10:060
25388997652,0cyclictest0-21swapper21:59:420
7450750,0irq/46-4a1000006082-1kworker/u3:219:50:100
7450750,0irq/46-4a1000005638-21seq00:29:390
7450750,0irq/46-4a1000005279-21runrttasks00:27:540
7450750,0irq/46-4a100000442-21snmpd19:59:160
7450750,0irq/46-4a1000003351-1kworker/u3:022:50:250
7450750,0irq/46-4a10000026750-1kworker/u3:219:38:040
7450750,0irq/46-4a10000025564-1kworker/u3:023:54:490
7450750,0irq/46-4a10000024063-21seq22:13:070
7450750,0irq/46-4a10000023961-1kworker/u3:222:15:290
7450750,0irq/46-4a10000023863-1kworker/u3:123:50:130
7450750,0irq/46-4a10000022344-21chrt23:42:510
7450750,0irq/46-4a10000021959-1kworker/u3:019:10:160
7450750,0irq/46-4a10000019156-1kworker/u3:122:44:380
7450750,0irq/46-4a10000014103-21latency_hist20:09:320
7450750,0irq/46-4a10000011682-21awk20:00:320
7450750,0irq/46-4a10000011329-21memory23:10:160
7450750,0irq/46-4a10000010191-1kworker/u3:123:20:210
7350750,0irq/45-4a10000028048-21sed23:59:480
7450740,0irq/46-4a1000009462-1kworker/u3:120:32:250
7450740,0irq/46-4a1000009462-1kworker/u3:120:24:410
7450740,0irq/46-4a1000008680-21runrttasks21:27:510
7450740,0irq/46-4a10000030708-21runrttasks19:21:210
7450740,0irq/46-4a10000028934-21runrttasks20:50:540
7450740,0irq/46-4a10000026001-1kworker/u3:022:24:450
7450740,0irq/46-4a10000015338-1kworker/u3:121:49:430
7350740,0irq/45-4a10000017388-21sshd23:29:160
178802740,0chrt17566-1kworker/u3:123:29:530
7450730,0irq/46-4a10000027259-21chrt20:46:050
7450730,0irq/46-4a10000012022-1kworker/u3:220:04:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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