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2026-08-22 - 00:58
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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 Fri Aug 21, 2026 02:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5796217831,115sleep00-21swapper/019:07:360
61629915979,36cyclictest12259-21wget19:30:150
61629915881,23cyclictest29213-21/usr/sbin/munin22:45:320
61629915683,34cyclictest801-21dbus-daemon21:20:010
61629915576,36cyclictest17876-21/usr/sbin/munin00:10:030
61629915379,20cyclictest17874-21apt-get00:10:460
61629915180,51cyclictest21696-21/usr/sbin/munin22:15:300
61629915076,37cyclictest29461-21runrttasks20:38:070
61629915076,37cyclictest2094-21munin-run23:10:040
61629914976,21cyclictest15323-21munin-run00:00:030
61629914975,37cyclictest24344-21apt-get20:17:090
61629914974,37cyclictest2394-21munin-node21:00:110
61629914876,36cyclictest8000-21ntp_states23:30:500
61629914872,55cyclictest1305-21snmpd19:58:000
61629914775,52cyclictest3829-21/usr/sbin/munin23:15:100
61629914775,34cyclictest754-21systemd-journal23:53:530
61629914774,35cyclictest13827-21df_inode19:35:220
61629914774,34cyclictest8842-21/usr/sbin/munin23:35:230
61629914774,21cyclictest2942-21irqstats23:10:540
61629914683,42cyclictest2260-21apt21:00:020
61629914676,31cyclictest11120-21irqstats19:25:590
61629914675,33cyclictest15574-21wget00:00:170
61629914673,20cyclictest20054-21df20:00:180
61629914665,22cyclictest9757-21apt-get21:32:080
61629914577,25cyclictest6907-21fw_forwarded_lo19:10:480
61629914572,20cyclictest15092-21diskstats19:40:230
61629914570,35cyclictest16236-21wget19:45:140
61629914478,22cyclictest17661-21irqstats19:50:320
61629914476,48cyclictest7775-21ntp_states21:20:380
61629914476,34cyclictest28013-21memory22:40:330
61629914382,40cyclictest17609-21systemctl22:00:020
61629914381,43cyclictest25754-21lockfile-create00:40:020
61629914376,52cyclictest10477-21ntp_states23:40:400
61629914374,50cyclictest31068-21/usr/sbin/munin20:45:170
61629914373,38cyclictest11448-21chrt23:45:160
61629914297,23cyclictest9796-21https21:30:050
61629914279,23cyclictest5477-21uptime21:10:480
61629914276,48cyclictest23671-21sshd22:23:350
61629914276,47cyclictest13678-21sshd21:43:230
61629914191,38cyclictest8627-21apt-get19:17:020
61629914176,44cyclictest30413-21chrt22:50:240
61629914175,36cyclictest18661-21sshd22:03:270
61629914173,35cyclictest1305-21snmpd20:25:180
61629914171,35cyclictest26629-21df22:35:170
61629914081,45cyclictest24573-21users22:25:510
61629914073,48cyclictest20298-21wget22:10:130
61629914070,18cyclictest22738-21ntp_states20:10:420
61629914068,51cyclictest5309-21/usr/sbin/munin23:20:230
61629913986,40cyclictest9334-21df_inode19:20:180
61629913976,43cyclictest11536-21/usr/sbin/munin21:35:150
61629913975,24cyclictest21151-21fw_conntrack00:20:430
61629913968,36cyclictest21288-21df20:05:170
616299139103,26cyclictest14237-21fw_forwarded_lo21:45:280
61629913871,49cyclictest28222-21sshd20:33:070
61629913778,40cyclictest1305-21snmpd23:04:030
61629913770,34cyclictest30081-21chrt20:40:270
61629913767,31cyclictest19384-21ntpq22:05:450
61629913674,33cyclictest4755-21latency_hist21:10:010
61629913663,38cyclictest739-21sshd20:53:110
61629913583,42cyclictest15609-21ntpq21:50:370
61629913575,21cyclictest1276-21runrttasks00:30:400
61629913470,45cyclictest25318-21wget22:30:160
61629913385,36cyclictest19631-21/usr/sbin/munin00:15:360
61629913384,37cyclictest22255-21seq00:25:200
61629913373,19cyclictest6584-21fw_conntrack23:25:270
61629913364,34cyclictest25062-21diskstats20:20:230
61629913275,39cyclictest1-21systemd23:00:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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