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2025-10-18 - 07:01
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Sat Oct 18, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501890,0irq/46-4a10000016743-21seq19:08:300
7450950,0irq/46-4a10000029537-21munin-plugin-st19:44:400
7450950,0irq/46-4a10000018546-21proc_pri20:45:360
303629511,0sleep03037-21/usr/sbin/munin20:01:080
139272950,0sleep010659-1kworker/u3:122:06:440
7450940,0irq/46-4a10000020199-21ntp_states20:50:360
7450930,0irq/46-4a10000031822-21df_inode21:25:100
7450930,0irq/46-4a10000029267-21/usr/sbin/munin22:50:450
7450930,0irq/46-4a10000027093-21load22:45:280
7450930,0irq/46-4a10000025377-21meminfo22:40:240
7450930,0irq/46-4a10000017962-21swap19:10:370
7450930,0irq/46-4a1000001535-21swap19:55:420
7450930,0irq/46-4a10000011162-21/usr/sbin/munin23:35:420
69462930,0sleep05696-1kworker/u3:123:20:460
7450920,0irq/46-4a1000009930-21meminfo21:55:260
7450920,0irq/46-4a1000008003-21irqstats20:15:220
7450920,0irq/46-4a100000443-21snmpd20:10:210
7450920,0irq/46-4a100000356-1kworker/u3:121:32:570
7450920,0irq/46-4a10000030522-21chrt22:55:290
7450920,0irq/46-4a10000027232-21chrt00:20:250
7450920,0irq/46-4a10000026498-21sendmail-msp00:19:410
7450920,0irq/46-4a10000026019-1kworker/u3:120:06:300
7450920,0irq/46-4a10000024955-21diskstats21:05:080
7450920,0irq/46-4a10000022564-21wc00:06:440
7450920,0irq/46-4a10000014331-21/usr/sbin/munin20:35:000
7450920,0irq/46-4a10000010913-21apt20:24:480
7450920,0irq/46-4a10000010312-21awk23:30:490
327002920,0chrt29769-1kworker/u3:223:00:430
78242910,0sleep05635-1kworker/u3:121:50:010
7450910,0irq/46-4a1000009560-21cut20:20:110
7450910,0irq/46-4a1000008206-21fw_conntrack23:25:150
7450910,0irq/46-4a1000007007-21runrttasks21:45:530
7450910,0irq/46-4a10000030327-21irqstats21:20:210
7450910,0irq/46-4a10000028652-21diskstats00:25:090
7450910,0irq/46-4a10000026815-21fw_forwarded_lo21:10:200
7450910,0irq/46-4a10000024730-21df19:30:020
7450910,0irq/46-4a10000022940-21runrttasks20:59:550
7450910,0irq/46-4a10000022269-21uptime20:55:430
7450910,0irq/46-4a10000020952-21munin-run19:19:410
7450910,0irq/46-4a10000020570-1kworker/u3:221:38:330
7450910,0irq/46-4a10000019630-21/usr/sbin/munin22:25:140
7450910,0irq/46-4a10000019625-21munin-run23:59:390
7450910,0irq/46-4a10000017911-21/usr/sbin/munin22:20:380
7450910,0irq/46-4a10000016272-21expr20:40:000
7450910,0irq/46-4a10000014827-21expr22:10:130
7450900,0irq/46-4a1000005906-21sendmail23:19:400
7450900,0irq/46-4a100000443-21snmpd19:50:020
7450900,0irq/46-4a1000003525-21ls23:10:410
7450900,0irq/46-4a10000031835-21aten_r4power_po00:35:010
7450900,0irq/46-4a10000031417-21seq00:33:130
7450900,0irq/46-4a10000029357-21chrt21:17:260
7450900,0irq/46-4a10000023483-21runrttasks19:25:320
7450900,0irq/46-4a10000021696-21chrt22:30:120
7450900,0irq/46-4a10000021397-21sed19:20:060
7450900,0irq/46-4a10000016944-21memory23:50:310
7450900,0irq/46-4a10000014600-21/usr/sbin/munin23:44:480
7450900,0irq/46-4a10000011359-21df_inode22:00:090
7350900,0irq/45-4a10000029846-21cpuspeed19:44:590
7450890,0irq/46-4a1000004508-21diskstats21:40:090
7450890,0irq/46-4a100000443-21snmpd20:30:330
7450890,0irq/46-4a10000026279-21aten_r4power_en19:34:560
7450890,0irq/46-4a10000023482-21fschecks_time22:35:140
7450890,0irq/46-4a10000023130-21date00:09:420
7450890,0irq/46-4a10000017080-21expr22:15:390
7450890,0irq/46-4a10000014158-21runrttasks23:42:130
7450890,0irq/46-4a1000001124-21sed23:05:040
7450870,0irq/46-4a10000020257-21cat00:00:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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