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2023-09-25 - 13:08
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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 Mon Sep 25, 2023 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502690,0irq/46-4a10000027827-1kworker/u3:019:02:430
7450960,0irq/46-4a1000007920-21kworker/u2:1320:54:300
2376998954,0cyclictest0-21swapper20:16:590
2376998758,0cyclictest0-21swapper22:45:570
7350860,0irq/45-4a10000025039-21grep23:19:010
182942860,0sleep016833-1kworker/u3:219:51:020
7450850,0irq/46-4a10000016983-21sendmail-msp22:56:430
7350850,0irq/45-4a10000030931-21/usr/sbin/munin20:27:430
268802850,0chrt25160-1kworker/u3:423:24:060
7350840,0irq/45-4a10000030674-21cat23:36:430
7350840,0irq/45-4a1000002047-21df23:47:320
300542847,0sleep030055-21users21:57:550
2376998457,0cyclictest0-21swapper19:08:550
2376998455,0cyclictest0-21swapper22:14:280
88392837,0sleep08863-21perl20:57:260
7450830,0irq/46-4a1000006954-21seq00:02:030
7450830,0irq/46-4a10000032277-21runrttasks20:32:030
7450830,0irq/46-4a10000017952-21which22:57:450
7450830,0irq/46-4a10000016677-21sh19:46:420
7350830,0irq/45-4a1000007890-1kworker/u3:521:17:500
7350830,0irq/45-4a10000031536-21modprobe23:37:440
45132838,0sleep04545-21diskstats19:11:590
147512836,0sleep014787-21/usr/sbin/munin00:22:520
7450820,0irq/46-4a1000004109-21runrttasks23:52:370
7450820,0irq/46-4a10000024046-21sshd21:42:110
7450820,0irq/46-4a10000022118-21runrttasks21:37:010
7450820,0irq/46-4a10000020608-21df21:32:140
7450820,0irq/46-4a10000020393-21apt23:06:420
7450820,0irq/46-4a10000013393-21awk21:11:430
2376998251,0cyclictest0-21swapper21:29:250
7450810,0irq/46-4a1000009279-21unixbench_singl19:22:520
7450810,0irq/46-4a1000005144-21sshd20:47:110
7450810,0irq/46-4a100000504-21latency22:07:330
7450810,0irq/46-4a10000027710-21fw_conntrack21:52:270
7450810,0irq/46-4a10000020282-21chrt19:57:040
7350810,0irq/45-4a10000026695-21sshd20:14:310
7350810,0irq/45-4a10000022857-21meminfo23:12:350
209652810,0sleep032406-1kworker/u3:023:07:220
7450800,0irq/46-4a1000008682-21seq00:07:120
7450800,0irq/46-4a1000008027-1kworker/u3:122:33:140
7450800,0irq/46-4a1000005565-21diskstats23:57:220
7450800,0irq/46-4a1000003485-21df20:42:120
7450800,0irq/46-4a10000030871-21runrttasks22:02:080
7450800,0irq/46-4a10000028005-21memory23:27:390
7450800,0irq/46-4a10000019235-21ntp_offset19:52:380
7450800,0irq/46-4a10000017239-21seq00:32:010
7450800,0irq/46-4a10000014155-21/usr/sbin/munin22:47:330
7450800,0irq/46-4a10000011803-21wget19:32:080
7450800,0irq/46-4a10000010741-21chrt19:27:450
7450800,0irq/46-4a10000010665-21grep21:02:350
7450800,0irq/46-4a10000010550-21sshd00:12:100
7450790,0irq/46-4a1000007049-21df22:27:200
7450790,0irq/46-4a10000032766-21chrt23:42:150
7450790,0irq/46-4a10000029628-21kworker/u2:119:21:430
7450790,0irq/46-4a10000029058-21cstates20:22:120
7450790,0irq/46-4a10000023911-21sshd20:07:120
7450790,0irq/46-4a10000017078-21wget21:22:090
7450790,0irq/46-4a10000016292-21proc_pri00:27:480
7450790,0irq/46-4a10000014607-21users21:12:540
7450790,0irq/46-4a10000010729-21/usr/sbin/munin22:37:270
7350790,0irq/45-4a10000012180-21aten_r4power_po00:17:050
2376997950,0cyclictest0-21swapper22:23:180
7450780,0irq/46-4a1000004394-21timerwakeupswit22:17:530
7450780,0irq/46-4a10000026887-21sshd21:50:110
7450780,0irq/46-4a1000002148-21/usr/sbin/munin20:37:340
7450780,0irq/46-4a10000014705-21seq19:39:360
7450770,0irq/46-4a10000022847-21mailstats20:02:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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