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2026-06-27 - 12:53
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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 all highest latencies:
System rack4slot2.osadl.org (updated Sat Jun 27, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1025429960,0sleep09091-1kworker/u3:019:05:230
7450960,0irq/46-4a10000022197-21entropy22:50:000
7450960,0irq/46-4a10000021565-1kworker/u3:219:46:140
7450960,0irq/46-4a10000016667-1kworker/u3:221:03:540
7450950,0irq/46-4a10000026870-21cron19:54:350
7450950,0irq/46-4a10000022411-21irqstats21:15:130
7350950,0irq/45-4a1000003778-21ntp_kernel_err20:20:280
7450940,0irq/46-4a10000011511-21munin-run22:19:370
7450930,0irq/46-4a1000007984-1kworker/u3:220:52:520
7450930,0irq/46-4a10000032733-21latency23:20:320
7450930,0irq/46-4a10000030969-21runrttasks23:15:130
7450930,0irq/46-4a10000030392-21latency_hist20:04:390
7450930,0irq/46-4a10000029185-21chrt20:00:070
7450930,0irq/46-4a10000026758-1kworker/u3:223:06:530
7450930,0irq/46-4a10000017341-21meminfo00:10:150
7450930,0irq/46-4a10000014191-21sendmail_mailst00:00:370
7450920,0irq/46-4a1000007464-21threads20:30:350
7450920,0irq/46-4a1000006135-21runrttasks22:02:390
7450920,0irq/46-4a1000006066-1kworker/u3:123:38:250
7450920,0irq/46-4a1000004236-21chrt21:56:080
7450920,0irq/46-4a10000032747-21meminfo21:45:170
7450920,0irq/46-4a10000031914-21runrttasks21:43:560
7450920,0irq/46-4a10000028260-1kworker/u3:221:32:160
7450920,0irq/46-4a10000028225-21runrttasks19:56:390
7450920,0irq/46-4a10000024024-21tune2fs22:55:030
7450920,0irq/46-4a10000022096-21df_abs00:24:560
7450920,0irq/46-4a10000020062-21sendmail-msp00:20:350
7450920,0irq/46-4a10000019429-21/usr/sbin/munin19:30:310
7450920,0irq/46-4a10000018333-21cron22:39:360
7450920,0irq/46-4a10000013054-21chrt20:48:160
7450920,0irq/46-4a10000011924-21chrt23:54:580
7450920,0irq/46-4a10000011614-21grep22:19:430
7350920,0irq/45-4a10000018941-21fw_forwarded_lo22:40:130
7450910,0irq/46-4a1000008675-21fw_forwarded_lo20:35:060
7450910,0irq/46-4a1000008511-21df_inode22:09:570
7450910,0irq/46-4a10000030090-21runrttasks21:38:010
7450910,0irq/46-4a10000029526-1kworker/u3:123:12:350
7450910,0irq/46-4a10000025193-21sendmail-msp22:59:580
7450910,0irq/46-4a10000022627-21runrttasks19:40:330
7450910,0irq/46-4a10000020060-21munin-run21:09:360
7450910,0irq/46-4a10000018983-21/usr/sbin/munin00:15:150
7450910,0irq/46-4a10000015117-21seq00:04:480
7450910,0irq/46-4a10000015057-21/usr/sbin/munin20:55:370
7450910,0irq/46-4a10000012161-21chrt19:10:450
7450910,0irq/46-4a10000011062-1kworker/u3:122:29:490
7350910,0irq/45-4a1000009996-21wget20:39:470
7450900,0irq/46-4a1000005654-21sendmail_mailst20:25:300
7450900,0irq/46-4a1000003689-21meminfo23:30:180
7450900,0irq/46-4a10000026882-21sendmail-msp00:39:380
7450900,0irq/46-4a10000025038-21runrttasks21:23:290
7450900,0irq/46-4a1000002453-21users20:15:340
7450900,0irq/46-4a10000024028-21fw_forwarded_lo00:30:070
7450900,0irq/46-4a10000021246-21/usr/sbin/munin19:35:330
7450900,0irq/46-4a10000020874-21/usr/sbin/munin21:10:230
7450900,0irq/46-4a10000020832-21awk22:45:220
7450900,0irq/46-4a1000001654-21sed21:49:530
7450900,0irq/46-4a10000015171-21aten_r4power_vo19:19:480
7450900,0irq/46-4a10000013645-21sed22:24:550
7450900,0irq/46-4a10000013065-21memory19:14:500
7450900,0irq/46-4a10000010353-21sshd23:50:060
7450890,0irq/46-4a1000008407-21cstates23:44:490
7450890,0irq/46-4a1000006502-21latency_hist22:04:400
7450890,0irq/46-4a1000006390-21sendmail-msp23:39:580
7450890,0irq/46-4a10000032334-21expr20:09:500
7450890,0irq/46-4a10000018412-21latency_hist19:29:380
7450890,0irq/46-4a1000001834-21sshd23:25:060
7450880,0irq/46-4a10000025433-21wget21:24:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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