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2026-03-17 - 02:55
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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 Tue Mar 17, 2026 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1840327520,10sleep018402-21ntp_states19:05:260
192219913551,48cyclictest13842-21seq22:51:280
192219913254,23cyclictest17577-21memory23:05:310
192219913183,38cyclictest31844-21sendmail-msp22:00:020
192219913070,44cyclictest536-21grep22:01:320
192219912750,37cyclictest2871-21munin-run20:10:030
192219912743,24cyclictest2286-21apt-get22:12:110
192219912566,43cyclictest9945-21apt-key20:35:170
192219912552,38cyclictest7493-21seq00:35:130
192219912550,20cyclictest21695-21apt-get19:18:220
192219912457,50cyclictest3650irq/20-4900000000:25:150
192219912449,35cyclictest29512-21wget21:50:130
192219912358,46cyclictest4220-21df22:15:180
192219912357,34cyclictest1305-21snmpd19:45:140
192219912356,32cyclictest27674-21apt-config19:40:240
192219912254,34cyclictest5300-21/usr/sbin/munin22:20:280
192219912251,51cyclictest1285-21lldpd20:57:070
192219912250,33cyclictest2869-21apt-get20:11:380
192219912250,31cyclictest1408-21nginx23:22:010
192219912248,54cyclictest1276-21runrttasks22:32:460
192219912248,38cyclictest30891-21ntp_states19:51:190
192219912245,40cyclictest25794-21latency_hist19:35:020
192219912153,33cyclictest9282-21sshd20:33:210
192219912152,34cyclictest26112-21ntp_states21:35:410
192219912151,47cyclictest21265-21/usr/sbin/munin21:20:120
192219912149,33cyclictest32272-21/usr/sbin/munin00:05:120
192219912145,24cyclictest30867-21/usr/sbin/munin00:00:060
192219912073,37cyclictest2206-21apt00:15:010
192219912059,42cyclictest1276-21runrttasks00:01:320
192219912051,37cyclictest17803-21awk21:05:330
192219912048,52cyclictest6097-21wget00:30:090
192219912047,37cyclictest28360-21latency_hist23:50:020
192219911975,34cyclictest16317-21fw_forwarded_lo23:00:500
192219911950,36cyclictest6070-21df20:20:160
192219911946,39cyclictest22736-21apt-get21:25:520
192219911861,40cyclictest31758-21aten_r7power_vo19:55:140
192219911856,21cyclictest7397-21ntp_states22:26:210
192219911851,32cyclictest12882-21ntpq20:45:390
192219911848,37cyclictest18894-21ntp_states23:10:400
192219911770,38cyclictest27170-21df21:40:200
192219911751,33cyclictest1370-21seq22:05:230
192219911750,27cyclictest8247-21munin-run20:30:010
192219911745,35cyclictest1305-21snmpd23:53:290
192219911656,40cyclictest26122-21sshd19:35:220
192219911653,21cyclictest801-21dbus-daemon23:40:010
192219911645,53cyclictest18793-21wget21:10:130
192219911570,35cyclictest2514-21/usr/sbin/munin00:15:230
192219911551,23cyclictest14989-21seq22:55:480
192219911454,41cyclictest2010-21node22:41:540
192219911447,48cyclictest20468-21https19:15:050
192219911445,33cyclictest23488-21wget19:25:120
192219911443,36cyclictest23247-21runrttasks23:28:550
192219911365,36cyclictest12095-21seq22:45:180
192219911359,34cyclictest24687-21sshd21:30:220
192219911352,47cyclictest28299-21wget21:45:130
192219911271,31cyclictest3989-21ntpq00:20:430
192219911243,32cyclictest1305-21snmpd20:17:430
192219911241,34cyclictest23711-21diskstats23:30:230
192219911165,36cyclictest26614-21chrt23:40:500
192219911068,30cyclictest10533-21apt22:40:020
192219910970,29cyclictest787-21haveged21:00:370
192219910955,43cyclictest20266-21memory21:15:340
192219910863,34cyclictest22231-21cut19:20:120
192219910861,36cyclictest2010-21node23:17:000
192219910761,35cyclictest637-21df20:00:150
192219910757,39cyclictest11634-21chrt20:40:370
192219910353,40cyclictest13916-21df20:50:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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