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2026-09-22 - 08:25
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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 Tue Sep 22, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502660,0irq/45-4a100000182152sleep019:06:560
7450850,0irq/46-4a10000011370-21runrttasks20:20:150
7350850,0irq/45-4a100000840-21df_inode22:59:550
18583998554,0cyclictest0-21swapper23:50:370
1686828514,0sleep016921-21head20:35:300
7350840,0irq/45-4a10000024676-21df00:09:520
7350840,0irq/45-4a10000021367-21diskstats00:00:000
7350830,0irq/45-4a1000002109-21munin-run21:29:340
7350830,0irq/45-4a10000017599-21/usr/sbin/munin22:15:390
7350820,0irq/45-4a1000009350-21df_abs21:49:520
7350820,0irq/45-4a10000020548-21runrttasks23:56:450
7350820,0irq/45-4a10000012768-21df_abs21:59:560
7350810,0irq/45-4a100000818-21/usr/sbin/munin00:34:520
7350810,0irq/45-4a10000017480-21munin-run22:14:350
169822816,0sleep016983-21users23:45:330
7450800,0irq/46-4a10000026356-21df_abs19:29:520
7350800,0irq/45-4a1000007560-21chrt21:44:500
7350800,0irq/45-4a1000006761-21chrt21:40:460
7350800,0irq/45-4a10000029985-21grep19:40:070
7350800,0irq/45-4a10000029445-21latency_hist22:49:330
7350800,0irq/45-4a10000012676-21df20:24:490
7450790,0irq/46-4a100000442-21snmpd20:06:200
7450790,0irq/46-4a100000442-21snmpd19:16:000
7350790,0irq/45-4a1000004537-21meminfo20:00:200
7350790,0irq/45-4a10000025283-21sendmail_mailtr19:25:290
7350790,0irq/45-4a10000018581-21cyclictest22:27:540
7350790,0irq/45-4a10000010798-21/usr/sbin/munin23:29:440
7350780,0irq/45-4a1000005546-21runrttasks21:39:350
7450770,0irq/46-4a100000442-21snmpd22:57:300
7450770,0irq/46-4a1000003628-21chrt23:08:030
7450770,0irq/46-4a10000024585-1kworker/u3:119:55:240
7450770,0irq/46-4a10000024322-21sendmail-msp20:59:570
7450770,0irq/46-4a10000015719-21chrt22:09:160
7350770,0irq/45-4a10000022604-21sendmail-msp19:19:430
7450760,0irq/46-4a1000008913-1kworker/u3:120:15:160
7450760,0irq/46-4a100000442-21snmpd23:27:420
7450760,0irq/46-4a10000032626-21runrttasks19:47:570
7450760,0irq/46-4a10000029611-21/usr/sbin/munin22:49:430
7450760,0irq/46-4a10000028108-21df00:19:520
7450760,0irq/46-4a10000026054-21sendmail-msp22:39:560
7450760,0irq/46-4a10000024316-21seq00:09:310
7450760,0irq/46-4a10000024241-1kworker/u3:222:37:170
7450760,0irq/46-4a1000002075-1kworker/u3:121:30:110
7350760,0irq/45-4a100000824-21fschecks_count19:49:570
7350760,0irq/45-4a10000017907-21diskstats20:39:580
7450750,0irq/46-4a1000008819-21seq23:23:320
7450750,0irq/46-4a10000032420-1kworker/u3:220:09:530
7450750,0irq/46-4a10000024585-1kworker/u3:119:34:570
7450750,0irq/46-4a10000022191-1kworker/u3:022:31:070
7450750,0irq/46-4a10000020556-21chrt22:21:460
7450750,0irq/46-4a10000019730-1kworker/u3:120:48:410
7450750,0irq/46-4a10000017564-1kworker/u3:219:09:540
7350750,0irq/45-4a10000029679-21basename00:24:460
7350750,0irq/45-4a10000021196-21cstates20:49:480
61132750,0sleep05087-1kworker/u3:223:15:060
7450740,0irq/46-4a1000005510-21kworker/u2:423:39:530
7450740,0irq/46-4a10000028989-1kworker/u3:221:14:350
7450740,0irq/46-4a10000017693-1kworker/u3:021:04:480
7450740,0irq/46-4a10000012860-1kworker/u3:020:30:140
7450740,0irq/46-4a10000011964-1kworker/u3:123:34:470
7450740,0irq/46-4a10000010845-21aten_r4power_po21:54:460
7350740,0irq/45-4a10000031337-21aten_r4power_po21:19:460
7450730,0irq/46-4a1000005049-21chrt23:10:460
7450730,0irq/46-4a10000031043-1kworker/u3:000:29:510
7450730,0irq/46-4a10000030718-1kworker/u3:121:17:590
7450730,0irq/46-4a10000024265-21runrttasks20:59:280
7450730,0irq/46-4a10000022249-1kworker/u3:100:15:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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