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2026-05-01 - 06:07
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack8slot4.osadl.org (updated Fri May 01, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6786102229169,18sleep70-21swapper/719:07:387
6786342216157,19sleep20-21swapper/219:07:582
6785642216161,20sleep00-21swapper/019:06:590
6786222212184,19sleep10-21swapper/119:07:491
6784672212163,38sleep60-21swapper/619:05:356
6787382210182,18sleep50-21swapper/519:09:295
6785982208146,18sleep40-21swapper/419:07:274
6786802206178,19sleep30-21swapper/319:08:393
678981995151,0cyclictest0-21swapper/023:40:010
678994994443,1cyclictest0-21swapper/523:40:015
678988994140,1cyclictest0-21swapper/323:40:003
67898899340,5cyclictest777566-21ls22:05:013
67898699330,31cyclictest690714-21cron19:30:012
67898499332,30cyclictest856-21dbus-daemon19:55:011
67898699320,31cyclictest374-21systemd-journal23:20:022
678997993127,3cyclictest1134-21gmain19:45:016
678988993131,0cyclictest0-21swapper/323:05:193
678988993128,2cyclictest721422-21apt-get20:25:013
67898499310,30cyclictest699523-21apt-get19:45:161
678997993028,1cyclictest730259-21apt-get20:40:146
67899799300,2cyclictest854256-21latency_hist00:25:016
678994993027,2cyclictest374-21systemd-journal20:50:005
67899499300,2cyclictest0-21swapper/522:40:015
678992993028,1cyclictest0-21swapper/400:25:014
67899299300,29cyclictest810723-21923:05:024
67898699300,29cyclictest0-21swapper/219:40:012
67898699300,28cyclictest0-21swapper/200:25:032
67898499300,29cyclictest735853-21taskset20:50:171
678998992928,1cyclictest819482-21apt-get23:20:167
678998992928,1cyclictest0-21swapper/721:25:177
678998992928,1cyclictest0-21swapper/721:25:177
678998992928,1cyclictest0-21swapper/721:15:177
678998992927,1cyclictest771623-21sh21:55:017
67899899290,28cyclictest0-21swapper/721:00:177
67899899290,1cyclictest780011-21cron22:10:017
67899899290,1cyclictest0-21swapper/723:15:177
678997992928,1cyclictest813515-21923:10:026
678997992928,1cyclictest0-21swapper/623:00:026
678997992927,1cyclictest766514-21apt-get21:45:146
67899799290,28cyclictest0-21swapper/623:30:176
67899799290,28cyclictest0-21swapper/622:20:046
67899799290,28cyclictest0-21swapper/620:05:156
67899799290,28cyclictest0-21swapper/620:00:176
67899799290,28cyclictest0-21swapper/620:00:006
67899799290,28cyclictest0-21swapper/619:30:166
67899799290,1cyclictest783238-21apt-get22:15:176
678994992927,1cyclictest0-21swapper/500:20:015
67899499290,28cyclictest0-21swapper/522:40:165
67899499290,28cyclictest0-21swapper/520:45:005
67899499290,28cyclictest0-21swapper/500:07:025
678992992928,1cyclictest769288-21apt-get21:50:164
678992992927,1cyclictest0-21swapper/422:05:164
67899299290,29cyclictest0-21swapper/400:35:234
67899299290,28cyclictest854531-21apt-get00:25:204
67899299290,28cyclictest824611-21munin-run23:30:014
67899299290,28cyclictest0-21swapper/420:45:034
67899299290,1cyclictest777251-21store22:05:004
67899299290,1cyclictest0-21swapper/421:45:014
678988992928,1cyclictest0-21swapper/323:10:173
67898899290,28cyclictest0-21swapper/322:50:153
67898899290,28cyclictest0-21swapper/322:45:163
67898899290,28cyclictest0-21swapper/321:30:173
67898899290,28cyclictest0-21swapper/321:30:163
67898899290,28cyclictest0-21swapper/320:25:043
67898899290,28cyclictest0-21swapper/300:30:173
67898899290,1cyclictest816684-21apt-get23:15:163
678986992927,1cyclictest0-21swapper/222:10:012
678986992924,4cyclictest841373-21cron00:00:012
67898699290,28cyclictest727067-21920:35:012
67898699290,28cyclictest705120-21apt-get19:55:162
67898699290,28cyclictest704677-21cron19:55:012
67898699290,28cyclictest0-21swapper/221:55:172
67898699290,28cyclictest0-21swapper/220:25:032
67898699290,28cyclictest0-21swapper/200:20:162
67898699290,1cyclictest0-21swapper/200:35:012
67898699290,1cyclictest0-21swapper/200:07:052
67898499290,29cyclictest791192-21cron22:30:021
67898499290,28cyclictest0-21swapper/123:30:161
67898499290,28cyclictest0-21swapper/122:05:161
67898499290,28cyclictest0-21swapper/121:20:161
67898499290,28cyclictest0-21swapper/100:25:011
67898499290,1cyclictest0-21swapper/120:00:011
678981992927,1cyclictest732677-21appstreamcli20:45:030
678981992927,1cyclictest0-21swapper/022:45:170
67898199290,28cyclictest857307-21apt-get00:30:160
67898199290,28cyclictest0-21swapper/023:15:160
67898199290,28cyclictest0-21swapper/023:05:010
67898199290,28cyclictest0-21swapper/022:00:160
67898199290,28cyclictest0-21swapper/021:55:170
67898199290,28cyclictest0-21swapper/021:50:010
67898199290,28cyclictest0-21swapper/020:45:010
67898199290,28cyclictest0-21swapper/019:25:160
67898199290,28cyclictest0-21swapper/000:15:170
678998992828,0cyclictest0-21swapper/720:05:017
678998992827,1cyclictest716283-21apt-get20:15:167
678998992827,1cyclictest713504-21apt-get20:10:167
678998992827,1cyclictest0-21swapper/722:20:017
678998992827,1cyclictest0-21swapper/720:45:037
678998992827,1cyclictest0-21swapper/700:25:017
67899899280,28cyclictest825039-21apt-get23:30:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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