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2026-07-04 - 04:36
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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 Sat Jul 04, 2026 00:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14017282231169,19sleep60-21swapper/619:08:246
14018272229167,19sleep20-21swapper/219:09:482
14016582225165,19sleep10-21swapper/119:07:221
14015172225165,49sleep30-21swapper/319:05:233
14016262223162,19sleep50-21swapper/519:06:545
14018402212183,19sleep40-21swapper/419:09:594
14016212209181,19sleep00-21swapper/019:06:490
14017672206178,18sleep70-21swapper/719:08:577
140216599350,33cyclictest1544935-21latency_hist23:25:023
140216199340,32cyclictest1516309-21expr22:35:012
140215799332,30cyclictest1507874-21cron22:20:011
140215299330,32cyclictest0-21swapper/000:10:030
140216699320,31cyclictest1-21systemd21:05:014
1402152993228,3cyclictest1577215-21appstreamcli00:25:030
140217299310,3cyclictest1547091-21cron23:30:016
140217299310,30cyclictest1505420-21cron22:15:016
1402165993127,3cyclictest1429859-21cron20:00:013
140216199310,30cyclictest1577215-21appstreamcli00:25:012
140215799310,29cyclictest0-21swapper/121:00:011
140215299310,1cyclictest0-21swapper/019:54:590
140217499300,29cyclictest1522010-21munin-run22:45:017
140217499300,29cyclictest0-21swapper/722:35:017
140217499300,29cyclictest0-21swapper/721:40:007
140217299301,1cyclictest1563136-21apt-get00:00:006
140216899300,2cyclictest1410417-21diskstats19:25:025
1402166993028,1cyclictest0-21swapper/422:20:004
140216699300,29cyclictest0-21swapper/419:41:594
1402165993028,1cyclictest0-21swapper/319:50:003
140216599300,2cyclictest1-21systemd19:55:013
140216599300,29cyclictest1560355-21apt-get23:54:593
140216599300,29cyclictest1541462-21cron23:20:013
140216599300,29cyclictest0-21swapper/323:45:013
140216599300,1cyclictest107-21kcompactd022:15:133
1402161993028,1cyclictest0-21swapper/200:25:032
140216199300,29cyclictest0-21swapper/223:45:022
1402157993028,1cyclictest0-21swapper/119:53:171
1402157993027,2cyclictest1482577-21latency_hist21:35:011
1402157993025,4cyclictest1432682-21cron20:05:011
140215799300,2cyclictest1444072-21tar20:25:031
1402152993030,0cyclictest0-21swapper/022:45:010
1402152993028,1cyclictest1410344-21cron19:25:010
140215299300,30cyclictest0-21swapper/000:10:000
140215299300,29cyclictest0-21swapper/023:35:020
140215299300,29cyclictest0-21swapper/023:25:020
140215299300,27cyclictest0-21swapper/020:05:000
140215299300,0cyclictest0-21swapper/019:55:030
1402174992927,1cyclictest1488468-21systemd-run21:45:017
1402174992927,1cyclictest1427154-21dpkg19:55:017
140217499290,29cyclictest1527774-21awk22:55:017
140217499290,1cyclictest17850irq/4-ttyS020:30:027
140217499290,1cyclictest1441107-21unin-run20:20:027
1402172992928,1cyclictest1580738-21900:30:016
1402172992928,1cyclictest0-21swapper/620:15:516
140217299290,29cyclictest1402362-21pool-spawner19:10:036
140217299290,29cyclictest0-21swapper/623:50:226
140217299290,29cyclictest0-21swapper/620:04:026
140217299290,1cyclictest1514230-21kernelversion22:30:036
140217299290,1cyclictest0-21swapper/623:43:556
140217299290,1cyclictest0-21swapper/619:55:046
140217299290,1cyclictest0-21swapper/619:23:106
1402168992928,1cyclictest0-21swapper/500:30:015
1402168992927,1cyclictest0-21swapper/519:20:015
1402168992926,2cyclictest1510712-21df22:25:015
1402168992926,2cyclictest1510712-21df22:25:015
140216899290,29cyclictest1505417-21cron22:15:015
140216899290,28cyclictest1522479-21tar22:45:025
140216899290,28cyclictest107-21kcompactd019:58:395
140216899290,28cyclictest0-21swapper/520:04:025
140216899290,1cyclictest1449475-21awk20:35:015
140216899290,1cyclictest0-21swapper/522:44:155
1402166992927,1cyclictest1543631-21apt-get23:24:594
1402166992927,1cyclictest1521291-21apt-get22:44:594
1402166992927,1cyclictest107-21kcompactd019:38:464
1402166992927,1cyclictest0-21swapper/400:32:184
1402166992926,2cyclictest1434815-21apt-get20:10:004
140216699290,28cyclictest611rcuc/420:25:024
140216699290,28cyclictest1-21systemd22:10:014
140216699290,28cyclictest0-21swapper/423:45:014
140216699290,28cyclictest0-21swapper/422:14:584
140216699290,28cyclictest0-21swapper/420:15:014
140216699290,28cyclictest0-21swapper/419:10:034
140216699290,28cyclictest0-21swapper/400:25:034
140216699290,1cyclictest0-21swapper/423:30:014
1402165992928,1cyclictest0-21swapper/322:45:013
1402165992927,1cyclictest0-21swapper/323:25:033
1402165992927,1cyclictest0-21swapper/322:35:033
140216599290,28cyclictest1522019-21appstreamcli22:45:033
140216599290,28cyclictest0-21swapper/322:34:023
140216599290,28cyclictest0-21swapper/321:25:133
140216599290,28cyclictest0-21swapper/320:35:023
1402161992927,1cyclictest1438283-21diskstats20:15:012
1402161992927,1cyclictest1432679-21cron20:05:012
1402161992927,1cyclictest0-21swapper/222:14:582
1402161992926,2cyclictest0-21swapper/222:30:012
140216199290,28cyclictest0-21swapper/222:25:002
140216199290,28cyclictest0-21swapper/222:25:002
140216199290,28cyclictest0-21swapper/221:25:002
140216199290,28cyclictest0-21swapper/219:48:262
140216199290,28cyclictest0-21swapper/219:14:342
140216199290,1cyclictest0-21swapper/223:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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