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2026-01-04 - 06:34
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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 Sun Jan 04, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502050,0irq/46-4a10000018634-21/usr/sbin/munin19:04:420
7350970,0irq/45-4a10000018878-1kworker/u3:120:49:480
7450910,0irq/46-4a10000032177-21sort21:15:300
93192888,0sleep09322-21df_inode21:44:560
7450860,0irq/46-4a1000008971-21sendmail-msp23:22:320
7450860,0irq/46-4a10000028621-21kworker/u2:900:20:220
7450860,0irq/46-4a10000026478-21grep22:34:560
7450850,0irq/46-4a10000028257-21kworker/u2:1420:40:250
7450850,0irq/46-4a10000019090-21sendmail-msp20:39:320
7450850,0irq/46-4a10000012241-21sendmail-msp20:19:340
7450840,0irq/46-4a10000085322chrt20:07:270
7450840,0irq/46-4a100000460-21snmpd22:28:480
7450840,0irq/46-4a10000032754-21sshd22:53:580
7450840,0irq/46-4a10000024157-1kworker/u3:219:50:180
7450840,0irq/46-4a1000002117-21sendmail-msp23:01:040
260622849,0sleep026059-21munin-run00:09:260
7450830,0irq/46-4a1000005502-21cron23:09:240
7450830,0irq/46-4a10000030586-21seq19:36:220
7450830,0irq/46-4a10000029129-21users00:16:470
7450830,0irq/46-4a100000242192chrt00:03:310
7450830,0irq/46-4a10000024152-21sendmail-msp19:19:310
7450830,0irq/46-4a10000021138-21df20:44:500
7450830,0irq/46-4a10000019201-21munin-run23:49:250
7450830,0irq/46-4a10000018447-21sensors22:10:270
7450830,0irq/46-4a10000011051-21perl20:14:580
3236228312,0sleep0322-21in:imuxsock19:41:520
7450820,0irq/46-4a1000006443-21swap20:00:450
7450820,0irq/46-4a100000330-21sendmail-msp21:21:400
7450820,0irq/46-4a10000028511-21awk21:05:230
7450820,0irq/46-4a1000002834-1kworker/u3:221:25:230
7450820,0irq/46-4a10000027711-21runrttasks00:14:080
7450820,0irq/46-4a10000027676-21apt-get19:29:370
7450820,0irq/46-4a10000025939-21sendmail-msp20:59:420
7450820,0irq/46-4a10000024152-21sendmail-msp19:21:060
7450820,0irq/46-4a10000013693-21seq21:57:070
7450820,0irq/46-4a10000012817-1kworker/u3:223:40:350
7350820,0irq/45-4a10000020880-21sendmail-msp22:20:280
7450810,0irq/46-4a1000007182-21sendmail-msp21:42:430
7450810,0irq/46-4a10000031599-1kworker/u3:123:24:440
7450810,0irq/46-4a100000307872chrt22:46:450
7450810,0irq/46-4a100000290572sleep022:41:370
7450810,0irq/46-4a1000002834-1kworker/u3:221:30:170
7450810,0irq/46-4a10000020534-21seq23:51:280
7450810,0irq/46-4a10000016377-21meminfo20:30:110
7450810,0irq/46-4a10000014583-21perl22:00:080
7450810,0irq/46-4a10000012970-1kworker/u3:120:25:350
7450800,0irq/46-4a100000915-21irqstats19:45:120
7450800,0irq/46-4a1000007072-1kworker/u3:023:14:530
7450800,0irq/46-4a10000031375-1kworker/u3:000:25:230
7450800,0irq/46-4a10000026812-21find19:25:250
7450800,0irq/46-4a10000025161-21/usr/sbin/munin22:30:230
7450800,0irq/46-4a10000023327-1kworker/u3:420:54:580
7450800,0irq/46-4a10000020552-21diskstats19:09:530
7450800,0irq/46-4a10000014500-1kworker/u3:022:05:060
7450800,0irq/46-4a10000012949-21fw_conntrack23:30:030
7450790,0irq/46-4a1000003427-1kworker/u3:119:58:230
7450790,0irq/46-4a10000023561-1kworker/u3:621:10:230
7450790,0irq/46-4a1000002117-21sendmail-msp22:59:310
7450790,0irq/46-4a10000016522-1kworker/u3:122:14:470
7450790,0irq/46-4a1000001424-21sendmail_mailst00:30:290
7450780,0irq/46-4a1000006314-21ntp_kernel_err23:10:190
7350780,0irq/45-4a1000002494-21seq00:34:460
7350780,0irq/45-4a10000022662-21sendmail-msp23:59:320
7450770,0irq/46-4a1000007223-1kworker/u3:120:10:190
7450770,0irq/46-4a10000031599-1kworker/u3:123:34:500
7450760,0irq/46-4a10000029672-1kworker/u3:121:35:010
7350750,0irq/45-4a10000010699-21/usr/sbin/munin21:49:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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