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2026-01-09 - 10:10
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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 highest latencies:
System rack7slot8.osadl.org (updated Fri Jan 09, 2026 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15182222032,52sleep00-21swapper/019:05:080
163809915768,36cyclictest5886-21apt-get20:37:100
163809914592,40cyclictest4301-21apt-get20:27:100
163809914373,22cyclictest26129-21dpkg00:00:020
163809914367,37cyclictest10911-21ntp_states20:50:420
163809914367,22cyclictest9552-21fw_forwarded_lo20:45:450
163809914283,43cyclictest13762-21/usr/sbin/munin23:10:290
163809914268,54cyclictest956-21wget22:20:120
163809914265,37cyclictest1305-21snmpd21:25:420
163809914165,39cyclictest5144-21ntp_states20:30:380
163809914076,45cyclictest21699-21proc_pri23:40:470
163809914067,20cyclictest25777-21df19:45:230
163809913972,51cyclictest13548-21apt-config21:00:250
163809913865,19cyclictest10230-21diskstats22:55:220
163809913863,35cyclictest23563-21df21:40:160
163809913768,33cyclictest25097-21https19:45:030
163809913766,53cyclictest23738-21runrttasks23:50:120
163809913766,35cyclictest4088-21munin-run00:40:030
163809913761,37cyclictest18785-21ntp_states21:20:380
163809913760,58cyclictest18972-21/usr/sbin/munin19:20:430
163809913673,45cyclictest29372-21wget20:00:120
163809913664,50cyclictest27599-21/usr/sbin/munin21:55:430
163809913572,21cyclictest631-21/usr/sbin/munin00:25:220
163809913469,22cyclictest16266-21ntp_states21:10:390
163809913462,50cyclictest2289-21ntp_states20:20:420
163809913373,40cyclictest754-21systemd-journal23:01:470
163809913366,29cyclictest3528-21/usr/sbin/munin22:31:220
163809913366,24cyclictest30205-21seq00:14:370
163809913365,49cyclictest3038-21seq22:27:530
163809913363,37cyclictest18469-21apt-get19:17:040
163809913362,34cyclictest15385-21ntp_states23:15:400
163809913361,19cyclictest22709-21diskstats23:45:250
163809913280,39cyclictest30774-21ntp_states00:15:430
163809913264,34cyclictest754-21systemd-journal22:48:470
163809913169,22cyclictest19262-21chrt23:30:440
163809913166,23cyclictest21088-21diskstats21:30:230
163809913062,48cyclictest2545-21runrttasks00:32:370
163809913052,22cyclictest26118-21apt-get00:02:110
163809912975,37cyclictest8895-21wget22:50:150
163809912974,40cyclictest20211-21/usr/sbin/munin19:25:510
163809912962,48cyclictest17631-21wget23:25:140
163809912962,46cyclictest1305-21snmpd23:20:140
163809912960,50cyclictest762-21/usr/sbin/munin20:15:180
163809912959,33cyclictest22126-21aten_r7power_cu21:35:120
163809912878,39cyclictest2010-21node22:11:590
163809912859,51cyclictest17213-21wget21:15:140
163809912766,21cyclictest32033-21ntp_states00:20:370
163809912668,20cyclictest30862-21memory20:05:310
163809912662,46cyclictest1305-21snmpd00:08:580
163809912662,45cyclictest26756-21chrt21:53:090
163809912586,27cyclictest28551-21df_inode22:00:190
163809912569,36cyclictest8782-21http20:45:040
163809912564,31cyclictest5103-21chrt22:35:130
163809912559,32cyclictest1305-21snmpd19:32:580
163809912473,39cyclictest801-21dbus-daemon23:40:020
163809912459,30cyclictest14756-21grep21:05:150
163809912458,48cyclictest6511-21diskstats22:40:220
163809912451,19cyclictest32315-21seq22:15:270
163809912375,35cyclictest16757-21irqstats19:10:290
163809912372,38cyclictest27002-21df19:50:170
163809912369,36cyclictest24620-21/usr/sbin/munin21:45:490
163809912273,37cyclictest12912-21http21:00:040
163809912267,42cyclictest28281-21fw_conntrack19:55:240
163809912262,19cyclictest29895-21irqstats22:05:310
163809912252,33cyclictest22889-21df_inode19:35:190
163809912169,39cyclictest12709-21df23:05:170
163809912168,41cyclictest32152-21ntpq20:10:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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