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2025-11-26 - 09:12
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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 Wed Nov 26, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502420,0irq/46-4a10000019081-1kworker/u3:119:05:060
211652970,0sleep07111-1kworker/u3:123:53:230
180162960,0sleep017153-1kworker/u3:022:08:440
7350950,0irq/45-4a10000014371-21runrttasks20:23:380
7450930,0irq/46-4a10000018001-21fw_packets20:34:180
7450920,0irq/46-4a100000407-21cron22:53:060
7450920,0irq/46-4a1000002980-21meminfo22:59:370
7450920,0irq/46-4a10000021707-21seq19:09:180
7450920,0irq/46-4a10000020241-21grep20:39:130
21061999270,0cyclictest0-21swapper21:43:250
7450910,0irq/46-4a1000008421-21timerwakeupswit23:14:140
7450910,0irq/46-4a10000026926-21runrttasks20:59:100
7450910,0irq/46-4a10000024621-21df_abs20:53:460
7450910,0irq/46-4a10000023315-21chrt20:49:380
7450910,0irq/46-4a10000014391-21runrttasks21:58:300
7450910,0irq/46-4a10000011206-21runrttasks20:14:240
21061999156,0cyclictest0-21swapper20:08:380
7450900,0irq/46-4a1000003823-21seq19:53:250
7450900,0irq/46-4a10000030641-1kworker/u3:121:11:230
7450900,0irq/46-4a10000027273-1kworker/u3:021:07:570
7450900,0irq/46-4a10000013048-21seq20:19:030
7450900,0irq/46-4a1000001116-21grep22:53:530
7450900,0irq/46-4a1000001064-1kworker/u3:100:32:230
7350900,0irq/45-4a10000032587-21sshd21:16:470
7350900,0irq/45-4a1000002127-21aten_r4power_po19:48:260
7450890,0irq/46-4a100000443-21snmpd23:08:550
7450890,0irq/46-4a100000301-21seq00:26:070
7450890,0irq/46-4a10000029889-21runrttasks22:43:340
7450890,0irq/46-4a10000029611-21tr00:18:090
7450890,0irq/46-4a10000028645-21grep19:29:140
7450890,0irq/46-4a10000027140-21cat00:09:080
7450890,0irq/46-4a10000023260-21fschecks_count23:58:420
7450890,0irq/46-4a10000021240-21sshd20:43:390
7450890,0irq/46-4a10000016706-21rt-features22:04:110
7450890,0irq/46-4a10000014739-21seq23:33:440
7450890,0irq/46-4a10000010002-21mailstats23:19:110
7350890,0irq/45-4a10000028901-21kworker/0:021:35:140
7450880,0irq/46-4a1000007831-21runrttasks21:38:490
7450880,0irq/46-4a1000005866-21grep19:58:410
7450880,0irq/46-4a1000004594-21ntp_states21:29:060
7450880,0irq/46-4a10000031510-21tune2fs19:38:410
7450880,0irq/46-4a10000030508-21/usr/sbin/munin00:19:050
7450880,0irq/46-4a10000027856-21latency_hist22:38:130
7450880,0irq/46-4a10000026565-21chrt19:23:580
7450880,0irq/46-4a10000023092-21fschecks_count22:23:380
7450880,0irq/46-4a10000020631-21seq23:50:140
7450880,0irq/46-4a10000019900-21/usr/sbin/munin22:13:520
7450880,0irq/46-4a10000017745-21aten_r4power_cu23:43:230
7450880,0irq/46-4a10000017344-1kworker/u3:219:14:430
7450880,0irq/46-4a10000012508-21latency_hist23:28:110
7450880,0irq/46-4a10000011574-21ntp_states23:24:030
40312888,0sleep04043-21cat00:38:110
7450870,0irq/46-4a100000955-21memory19:43:560
7450870,0irq/46-4a1000008851-21cat20:08:140
7450870,0irq/46-4a100000407-21latency_hist21:18:120
7450870,0irq/46-4a10000030285-21switchtime19:34:090
7450870,0irq/46-4a10000027006-21grep22:34:080
7450870,0irq/46-4a10000025861-21seq22:31:510
7450870,0irq/46-4a10000024714-21aten_r4power_vo00:03:270
7450870,0irq/46-4a10000024704-21fw_forwarded_lo19:18:480
7450870,0irq/46-4a10000022159-1kworker/u3:022:22:260
7450870,0irq/46-4a10000016370-21tune2fs23:38:410
7450870,0irq/46-4a10000016253-21/usr/sbin/munin20:28:490
7450870,0irq/46-4a10000012903-21fw_conntrack21:53:450
34532870,0chrt23424-1kworker/u3:421:25:510
7450860,0irq/46-4a10000011269-21/usr/sbin/munin21:48:520
7450850,0irq/46-4a1000004224-21df23:03:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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