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2026-06-02 - 14:36
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 792 highest latencies:
System rack7slot8.osadl.org (updated Tue Jun 02, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2298023280,7sleep022983-21cut19:05:340
236429915174,38cyclictest12251-21apt-get22:40:360
236429914764,63cyclictest10406-21ntp_states20:25:410
236429914571,54cyclictest10126-21chrt22:30:270
236429914466,37cyclictest30786-21df23:50:180
236429914365,35cyclictest2010-21node22:46:470
236429914272,17cyclictest32505-21fw_forwarded_lo23:55:480
236429914266,56cyclictest26853-21/usr/sbin/munin23:35:090
236429914171,50cyclictest812-21avahi-daemon22:05:260
236429913983,44cyclictest14912-21apt-get20:42:110
236429913968,54cyclictest25240-21http21:25:040
236429913965,54cyclictest16695-21wget20:50:140
236429913878,19cyclictest801-21dbus-daemon22:20:010
236429913870,22cyclictest28516-21ntp_states23:40:430
236429913865,36cyclictest1128-21/usr/sbin/munin21:55:370
236429913861,36cyclictest2718-21irqstats22:00:310
236429913769,24cyclictest809-21systemd-logind00:26:230
236429913762,21cyclictest754-21systemd-journal20:13:240
236429913760,57cyclictest1480-21munin-node23:15:110
236429913674,46cyclictest1305-21snmpd20:02:500
236429913671,46cyclictest3991-21chrt00:10:390
236429913663,37cyclictest25357-21ntp_states19:15:430
236429913660,57cyclictest18341-21df_inode23:00:190
236429913656,24cyclictest25228-21apt-get21:27:070
236429913569,47cyclictest25616-21/usr/sbin/munin23:30:130
236429913567,49cyclictest1305-21snmpd22:23:210
236429913566,51cyclictest24481-21runrttasks23:25:210
236429913565,52cyclictest1305-21snmpd21:08:040
236429913562,33cyclictest8705-21wget22:25:140
236429913560,34cyclictest29339-21munin-run21:40:050
236429913473,42cyclictest5975-21latency_hist00:20:030
236429913467,49cyclictest31074-21cron19:40:000
236429913465,50cyclictest1305-21snmpd21:15:180
236429913461,36cyclictest5326-21cut20:05:320
236429913367,47cyclictest805-21rs:main0
236429913278,41cyclictest1305-21snmpd19:45:250
236429913269,21cyclictest18034-21sendmail-msp23:00:030
236429913261,19cyclictest16040-21ntp_states22:50:410
236429913174,40cyclictest30152-21chrt21:40:500
236429913169,22cyclictest5213-21memory22:10:340
236429913164,34cyclictest20816-21df23:10:190
236429913161,37cyclictest8489-21seq20:18:500
236429913158,34cyclictest1305-21snmpd20:48:000
236429913061,33cyclictest10568-21memory00:35:400
236429912974,35cyclictest31097-21/usr/sbin/munin21:45:320
236429912968,41cyclictest754-21systemd-journal19:29:240
236429912968,20cyclictest18224-21grep20:55:370
236429912966,21cyclictest2834-21memory19:55:340
236429912957,36cyclictest23225-21wget23:20:160
236429912862,47cyclictest6448-21runrttasks00:20:350
236429912860,33cyclictest23846-21chrt19:10:160
236429912768,39cyclictest1276-21runrttasks19:50:200
236429912762,46cyclictest32528-21df_inode21:50:190
236429912685,28cyclictest29753-21ntp_states23:45:420
236429912667,28cyclictest9052-21wget00:30:210
236429912586,29cyclictest31614-21ntp_states19:40:430
236429912570,38cyclictest11247-21/usr/sbin/munin20:30:440
236429912568,46cyclictest12677-21/usr/sbin/munin20:35:170
236429912567,40cyclictest22551-21sshd21:13:430
236429912566,19cyclictest28922-21chrt19:30:190
236429912560,30cyclictest1305-21snmpd21:03:020
236429912555,37cyclictest1518-21awk00:00:470
236429912464,42cyclictest11827-21runrttasks22:36:310
236429912457,49cyclictest2422-21wget00:05:290
236429912369,41cyclictest26637-21ntp_states19:20:420
236429912274,38cyclictest19415-21aten_r7power_cu23:05:120
236429912169,41cyclictest26993-21hostname21:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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