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2025-11-14 - 06:00
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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 Nov 14, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73506410,0irq/45-4a10000018034-21kworker/0:019:04:510
7350960,0irq/45-4a1000007008-1kworker/u3:020:59:510
7450930,0irq/46-4a10000010403-21diskstats23:14:060
7450920,0irq/46-4a10000026002-21runrttasks19:15:010
292182920,0sleep028210-1kworker/u3:219:24:320
7450910,0irq/46-4a1000004786-1kworker/u3:000:35:130
7450910,0irq/46-4a10000027594-21sshd22:29:160
7450910,0irq/46-4a10000027326-21perl19:19:110
7450910,0irq/46-4a10000020256-21munin-run23:43:360
7450910,0irq/46-4a10000018404-21cron22:03:350
7450910,0irq/46-4a10000016410-21grep23:30:440
7450910,0irq/46-4a10000010906-21grep20:04:480
7450900,0irq/46-4a100000961-1kworker/u3:221:43:530
7450900,0irq/46-4a10000032680-21/usr/sbin/munin19:34:370
7450900,0irq/46-4a10000029511-1kworker/u3:122:39:300
7450900,0irq/46-4a10000028565-21munin-run20:58:390
7450900,0irq/46-4a1000002392-21/usr/sbin/munin21:14:400
7450900,0irq/46-4a10000022869-21grep20:39:400
7450900,0irq/46-4a10000018930-21/usr/sbin/munin20:29:180
7450900,0irq/46-4a10000011556-21seq20:08:550
7450890,0irq/46-4a1000007008-1kworker/u3:020:46:440
7450890,0irq/46-4a1000006401-21chrt19:53:490
7450890,0irq/46-4a1000005357-21fschecks_count22:59:300
7450890,0irq/46-4a1000003443-21/usr/sbin/munin19:44:120
7450890,0irq/46-4a10000031685-1kworker/u3:121:09:340
7450890,0irq/46-4a10000031119-1kworker/u3:019:32:090
7450890,0irq/46-4a10000030430-21/usr/sbin/munin21:04:390
7450890,0irq/46-4a10000029279-21runrttasks00:09:070
7450890,0irq/46-4a1000002877-1kworker/u3:122:52:400
7450890,0irq/46-4a10000026384-21sendmail_mailst23:59:360
7450890,0irq/46-4a10000024428-21meminfo23:54:300
7450890,0irq/46-4a1000002142-21ls00:24:190
7450890,0irq/46-4a10000021059-21/usr/sbin/munin20:34:470
7450890,0irq/46-4a10000020460-21hostname23:43:540
7450890,0irq/46-4a10000018915-21chrt22:04:230
7450890,0irq/46-4a10000013703-21tune2fs20:14:120
7450890,0irq/46-4a10000013485-21latency_hist23:23:400
7450890,0irq/46-4a10000012400-21latency23:19:190
7450880,0irq/46-4a1000008882-21memory21:34:290
7450880,0irq/46-4a1000008086-1kworker/u3:023:11:010
7450880,0irq/46-4a1000008044-21seq23:07:090
7450880,0irq/46-4a1000003352-21/usr/sbin/munin21:18:590
7450880,0irq/46-4a10000029739-21sensors22:34:370
7450880,0irq/46-4a10000025750-21fw_packets20:49:170
7450880,0irq/46-4a10000024104-21runrttasks19:11:150
7450880,0irq/46-4a10000022309-21runrttasks23:49:010
7450880,0irq/46-4a10000017031-21aten_r4power_po23:33:580
7450880,0irq/46-4a10000014354-1kworker/u3:220:18:430
7450880,0irq/46-4a10000010306-21seq21:39:070
7450870,0irq/46-4a1000008198-21hostname19:58:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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