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2025-12-30 - 09:54
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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 Tue Dec 30, 2025 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501950,0irq/46-4a10000019361-21/usr/sbin/munin19:05:080
20519999269,0cyclictest0-21swapper19:24:550
20519999252,0cyclictest0-21swapper21:40:230
7350900,0irq/45-4a10000024668-21apt-get19:19:540
441328716,0sleep04473-21grep23:04:570
7350850,0irq/45-4a1000005880-21/usr/sbin/munin19:59:460
7350840,0irq/45-4a1000005725-21cron19:59:360
7350840,0irq/45-4a1000003237-21memory23:00:410
7350840,0irq/45-4a10000029788-21apt-get19:34:490
325922849,0sleep032608-21users19:41:020
20519998450,0cyclictest0-21swapper21:09:470
1724828417,0sleep017283-21timerandwakeup23:40:570
7350830,0irq/45-4a10000021278-21apt-get23:55:420
7350830,0irq/45-4a10000014328-21apt-get20:26:030
7350820,0irq/45-4a1000007602-21apt20:04:470
7350820,0irq/45-4a10000028479-21diskstats21:05:080
7350820,0irq/45-4a10000020951-21diskstats19:10:050
7350820,0irq/45-4a10000014728-21sh22:00:030
20519998250,0cyclictest0-21swapper23:32:000
7350810,0irq/45-4a10000028429-21df22:40:030
7350810,0irq/45-4a1000001325-21fw_forwarded_lo21:20:280
7350810,0irq/45-4a10000010095-21awk21:45:350
7450800,0irq/46-4a10000023026-21sendmail-msp00:00:070
7350800,0irq/45-4a10000029982-21apt-get00:19:500
7450790,0irq/46-4a10000058-21kswapd000:07:030
7350790,0irq/45-4a10000019733-21wget23:49:530
7350790,0irq/45-4a10000013229-21fw_forwarded_lo20:20:220
7450780,0irq/46-4a1000009285-21kworker/u2:123:20:370
7450780,0irq/46-4a1000007374-1kworker/u3:219:15:120
7450780,0irq/46-4a100000460-21snmpd21:28:200
7450780,0irq/46-4a10000031223-1kworker/u3:022:48:190
7450780,0irq/46-4a10000028144-21seq00:14:390
7450780,0irq/46-4a10000026354-1kworker/u3:022:35:250
7450780,0irq/46-4a1000002521-21awk00:34:370
7450780,0irq/46-4a10000019478-1kworker/u3:120:50:070
7450780,0irq/46-4a10000019473-21sendmail-msp20:40:560
7350780,0irq/45-4a10000021245-21sendmail-msp22:19:510
7350780,0irq/45-4a10000017299-21chrt20:31:070
7350780,0irq/45-4a10000011144-21aten_r4power_po21:49:530
317132788,0sleep031736-21aten_r4power_vo22:49:560
7450770,0irq/46-4a1000009204-21runrttasks23:18:580
7450770,0irq/46-4a1000007531-21apt21:39:370
7450770,0irq/46-4a100000460-21snmpd20:58:080
7450770,0irq/46-4a10000028963-21seq00:15:330
7450770,0irq/46-4a10000026325-21sendmail-msp21:00:380
7450770,0irq/46-4a10000018536-21/usr/sbin/munin22:10:270
7450770,0irq/46-4a1000001798-1kworker/u3:019:51:520
7450770,0irq/46-4a10000013455-1kworker/u3:121:57:050
7350770,0irq/45-4a10000032081-21if_eth021:15:210
7350770,0irq/45-4a10000021246-21modprobe22:19:380
7450760,0irq/46-4a1000007127-1kworker/u3:123:35:370
7450760,0irq/46-4a1000004976-1kworker/u3:023:10:430
7450760,0irq/46-4a10000028114-1kworker/u3:100:24:470
7450760,0irq/46-4a10000026197-21chrt22:33:300
7450760,0irq/46-4a10000015989-1kworker/u3:322:05:320
7450760,0irq/46-4a10000010888-1kworker/u3:220:17:260
7350760,0irq/45-4a1000001973-21runrttasks22:55:490
20519997651,0cyclictest0-21swapper19:29:470
7450750,0irq/46-4a10000020807-1kworker/u3:122:25:350
7450750,0irq/46-4a10000019478-1kworker/u3:120:45:330
7450750,0irq/46-4a1000001798-1kworker/u3:019:47:460
7450750,0irq/46-4a10000010888-1kworker/u3:220:35:210
7350750,0irq/45-4a1000009316-1kworker/u3:023:44:460
7450740,0irq/46-4a1000007127-1kworker/u3:123:25:060
7450740,0irq/46-4a1000005781-1kworker/u3:020:10:200
7450740,0irq/46-4a1000004445-21cstates21:29:570
7450740,0irq/46-4a1000002486-1kworker/u3:100:35:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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