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2026-05-24 - 22:57
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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 Sun May 24, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502340,0irq/46-4a10000023185-1kworker/u3:006:59:280
129172950,0sleep011169-1kworker/u3:009:29:000
7350940,0irq/45-4a10000026694-1kworker/u3:208:08:140
7350940,0irq/45-4a10000015285-1kworker/u3:010:24:020
28682999457,0cyclictest0-21swapper09:54:360
28682999270,0cyclictest0-21swapper09:04:370
28682999260,0cyclictest0-21swapper09:19:510
67152919,0sleep0460-21snmpd09:09:350
7450900,0irq/46-4a10000029648-21sendmail_mailtr07:04:510
28682999059,0cyclictest0-21swapper07:59:450
28682999058,0cyclictest0-21swapper08:49:490
7450890,0irq/46-4a10000021999-21fschecks_time08:19:280
7450890,0irq/46-4a10000018604-21fw_conntrack09:44:290
28682998967,0cyclictest0-21swapper10:39:580
28682998958,0cyclictest0-21swapper11:24:450
28682998958,0cyclictest0-21swapper08:54:570
28682998957,0cyclictest0-21swapper08:39:330
28682998957,0cyclictest0-21swapper08:24:470
28682998957,0cyclictest0-21swapper08:14:550
28682998956,0cyclictest0-21swapper07:49:200
230552890,0chrt22721-1kworker/u3:211:33:190
7450880,0irq/46-4a10000010251-21missed_timers10:54:470
7350880,0irq/45-4a10000029724-1kworker/u3:008:44:360
7350880,0irq/45-4a10000024530-1kworker/u3:210:06:300
28682998856,0cyclictest0-21swapper11:59:480
28682998856,0cyclictest0-21swapper07:44:470
7450870,0irq/46-4a1000003253-21ls12:09:320
7450870,0irq/46-4a10000021517-21grep09:54:020
7450870,0irq/46-4a10000016920-21idleruntime09:39:320
7450870,0irq/46-4a10000013587-21runrttasks09:29:370
7450870,0irq/46-4a1000001131-21wget10:29:100
7350870,0irq/45-4a10000026735-21chrt11:44:090
28682998765,0cyclictest0-21swapper09:34:250
28682998756,0cyclictest0-21swapper07:24:320
28682998755,0cyclictest0-21swapper09:14:570
28682998755,0cyclictest0-21swapper08:29:330
28682998755,0cyclictest0-21swapper07:39:110
28682998754,0cyclictest0-21swapper11:34:490
129142870,0chrt31466-1kworker/u3:211:03:580
7450860,0irq/46-4a1000008092-21/usr/sbin/munin10:49:130
7450860,0irq/46-4a1000006825-21meminfo12:19:420
7450860,0irq/46-4a10000027357-21ntp_kernel_pll_10:09:430
7450860,0irq/46-4a10000027307-21seq08:34:370
28682998655,0cyclictest0-21swapper07:19:300
28682998654,0cyclictest0-21swapper07:55:000
7450850,0irq/46-4a1000007728-21runrttasks07:38:400
7450850,0irq/46-4a1000004295-21chrt10:38:260
7450850,0irq/46-4a10000018796-21/usr/sbin/munin08:09:450
7450850,0irq/46-4a10000016962-21if_eth011:14:330
7450850,0irq/46-4a1000001543-21fw_forwarded_lo12:04:340
7450850,0irq/46-4a10000013239-1kworker/u3:011:05:330
7450850,0irq/46-4a10000010250-21missed_timers12:29:430
7450840,0irq/46-4a1000008781-21cat12:24:540
7450840,0irq/46-4a1000006621-21perl10:44:260
7450840,0irq/46-4a100000613-21runrttasks07:16:160
7450840,0irq/46-4a1000005950-21sshd07:33:140
7450840,0irq/46-4a1000004176-21chrt09:02:320
7450840,0irq/46-4a10000030447-21chrt10:19:220
7450840,0irq/46-4a10000030192-21aten_r4power_po11:54:100
7450840,0irq/46-4a10000029373-21timerandwakeup10:14:540
7450840,0irq/46-4a10000024786-21runrttasks10:03:260
7350840,0irq/45-4a10000015313-1kworker/u3:211:12:530
28682998452,0cyclictest0-21swapper11:40:000
28682998452,0cyclictest0-21swapper11:19:470
7450830,0irq/46-4a1000004820-21diskstats12:14:200
7450830,0irq/46-4a100000460-21snmpd07:11:140
7450830,0irq/46-4a10000028722-21diskstats11:49:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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