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2026-07-18 - 07:36
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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 Sat Jul 18, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74509040,0irq/46-4a10000030900-1kworker/u3:019:07:380
326729910159,0cyclictest0-21swapper22:42:480
7450930,0irq/46-4a1000006802-21ps19:24:350
7450930,0irq/46-4a10000020052-21cut23:14:100
7450930,0irq/46-4a1000001777-21awk20:44:390
45152930,0sleep02364-1kworker/u3:120:54:010
105372930,0sleep09221-1kworker/u3:000:19:570
7450920,0irq/46-4a10000027132-21load20:24:240
7450920,0irq/46-4a1000002493-21sendmail-msp23:59:550
7450920,0irq/46-4a10000021212-1kworker/u3:220:09:100
7450920,0irq/46-4a1000001387-21runrttasks19:09:440
7450920,0irq/46-4a10000013387-21kernelversion00:29:210
7350920,0irq/45-4a10000014990-21perl19:49:110
1832029223,0sleep018349-21sort23:09:120
1794929211,0sleep017976-21date19:58:530
7450910,0irq/46-4a100000799-21sendmail-msp22:19:440
7450910,0irq/46-4a1000006819-21awk00:09:370
7450910,0irq/46-4a100000438-21snmpd23:39:110
7450910,0irq/46-4a100000438-21snmpd23:29:030
7450910,0irq/46-4a100000438-21snmpd00:05:020
7450910,0irq/46-4a1000002616-21/usr/sbin/munin22:24:190
7450910,0irq/46-4a10000014997-21sshd21:24:130
7450910,0irq/46-4a10000011737-21meminfo22:49:240
7350910,0irq/45-4a1000009737-21df_inode22:44:050
32672999159,0cyclictest0-21swapper21:29:090
7450900,0irq/46-4a1000004235-21sendmail-msp19:19:280
7450900,0irq/46-4a10000032503-21grep23:49:420
7450900,0irq/46-4a10000032199-21/usr/sbin/munin20:39:270
7450900,0irq/46-4a10000028808-21latency20:29:210
7450900,0irq/46-4a10000026415-21sendmail-msp21:59:110
7450900,0irq/46-4a10000025506-21ntp_states21:54:330
7450900,0irq/46-4a10000023839-21open_inodes21:49:370
7450900,0irq/46-4a10000012729-21cron19:43:430
7450900,0irq/46-4a10000011689-21sed21:14:230
314362900,0chrt31058-1kworker/u3:123:48:180
7450890,0irq/46-4a1000008905-21runrttasks19:30:220
7450890,0irq/46-4a1000007626-21sendmail-msp22:38:470
7450890,0irq/46-4a100000602-1kworker/u3:023:57:460
7450890,0irq/46-4a100000565-21seq22:17:140
7450890,0irq/46-4a100000438-21snmpd23:24:000
7450890,0irq/46-4a10000031551-21sendmail-msp20:38:520
7450890,0irq/46-4a10000028753-21irqstats22:04:190
7450890,0irq/46-4a10000026516-21aten_r4power_cu23:33:540
7450890,0irq/46-4a10000022982-21munin-run23:23:460
7450890,0irq/46-4a10000021616-21df21:44:010
7450890,0irq/46-4a10000019588-21sendmail-msp21:38:470
7450890,0irq/46-4a10000017333-21users23:04:450
7450890,0irq/46-4a10000014430-21idleruntime-cro22:58:450
7450890,0irq/46-4a10000011452-21df_inode00:24:040
7450890,0irq/46-4a10000010709-1kworker/u3:121:13:020
7450880,0irq/46-4a1000009338-21sendmail-msp00:18:490
7450880,0irq/46-4a10000030786-21/usr/sbin/munin22:09:390
7450880,0irq/46-4a1000002924-21df_abs19:14:220
7450880,0irq/46-4a10000023170-21/usr/sbin/munin20:13:570
7450880,0irq/46-4a10000020416-21ntp_states21:39:420
7450880,0irq/46-4a10000014453-21sendmail-msp22:59:240
7450880,0irq/46-4a10000014113-1kworker/u3:119:48:120
7450880,0irq/46-4a10000012883-21aten_r4power_cu21:18:540
7450870,0irq/46-4a1000004367-21aten_r4power_en22:28:550
7450870,0irq/46-4a10000032615-1kworker/u3:119:33:520
7450870,0irq/46-4a1000002703-21aten_r4power_vo20:48:580
7450870,0irq/46-4a10000020564-21which20:04:370
7450870,0irq/46-4a10000016782-1kworker/u3:019:56:390
7450870,0irq/46-4a10000016153-21cat00:38:440
253032870,0chrt18665-1kworker/u3:120:19:220
7450860,0irq/46-4a1000007834-21aten_r4power_vo21:03:570
7450860,0irq/46-4a1000005926-21sendmail-msp20:59:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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