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2026-06-17 - 00:30
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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 50 highest latencies:
System rack4slot2.osadl.org (updated Mon Jun 15, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502360,0irq/45-4a1000009804-21kworker/0:119:08:560
254092950,0sleep022830-1kworker/u3:121:25:330
7450940,0irq/46-4a10000015763-21chrt20:58:140
7450930,0irq/46-4a10000031632-21cstates20:09:550
7450930,0irq/46-4a10000019411-1kworker/u3:000:29:550
7450930,0irq/46-4a10000017357-21runrttasks19:27:050
7350930,0irq/45-4a10000015041-21/usr/sbin/munin00:05:270
245182930,0sleep024256-1kworker/u3:219:49:420
7450920,0irq/46-4a100000452-21snmpd23:15:100
7450920,0irq/46-4a10000028648-21/usr/sbin/munin23:10:260
7450920,0irq/46-4a1000002601-21wc21:54:560
7450920,0irq/46-4a10000020701-1kworker/u3:022:50:020
7450920,0irq/46-4a10000018504-21seq21:05:300
7450920,0irq/46-4a10000018018-21seq19:30:000
7450920,0irq/46-4a10000012059-1kworker/u3:223:57:260
7450910,0irq/46-4a100000979-21df_abs20:15:030
7450910,0irq/46-4a1000008281-21pluginstate20:35:320
7450910,0irq/46-4a1000007593-21seq22:09:530
7450910,0irq/46-4a1000006916-21uptime23:40:450
7450910,0irq/46-4a1000006143-21diskstats20:30:030
7450910,0irq/46-4a1000005959-21aten_r4power_vo22:04:550
7450910,0irq/46-4a100000452-21snmpd22:44:430
7450910,0irq/46-4a1000004125-21/usr/sbin/munin23:35:350
7450910,0irq/46-4a1000003844-1kworker/u3:120:24:210
7450910,0irq/46-4a10000031218-1kworker/u3:121:47:400
7450910,0irq/46-4a10000027896-21cron21:34:410
7450910,0irq/46-4a1000001545-21sendmail_mailst21:50:350
7450910,0irq/46-4a10000012977-21df_abs22:25:000
7450910,0irq/46-4a10000010377-21/usr/sbin/munin19:09:540
7350910,0irq/45-4a1000009470-21seq20:39:580
141462910,0chrt13869-1kworker/u3:000:03:520
7450900,0irq/46-4a1000009620-21fschecks_count22:15:080
7450900,0irq/46-4a100000452-21snmpd23:20:140
7450900,0irq/46-4a10000027944-21sendmail-msp20:00:040
7450900,0irq/46-4a10000027209-21awk23:05:370
7450900,0irq/46-4a10000022826-21sendmail-msp21:20:040
7450900,0irq/46-4a10000021574-21fschecks_count00:25:090
7450900,0irq/46-4a10000020110-21memory21:10:240
7450900,0irq/46-4a10000019794-21df_abs22:45:020
7450900,0irq/46-4a10000018135-21fschecks_count00:15:080
7450900,0irq/46-4a10000017706-21wc22:39:450
7450900,0irq/46-4a1000001645-21/usr/sbin/munin23:25:370
7450900,0irq/46-4a10000016292-21cstates00:09:580
7450900,0irq/46-4a10000015090-21ntpq22:30:340
7450900,0irq/46-4a10000013261-21sed20:50:210
7450900,0irq/46-4a10000012139-21cat19:14:480
7450900,0irq/46-4a10000011966-21timerwakeupswit20:45:380
7450890,0irq/46-4a1000009914-21ntpq23:50:290
7450890,0irq/46-4a10000030197-21fschecks_time21:40:130
7450890,0irq/46-4a10000028496-21fw_conntrack21:35:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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