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2025-12-27 - 23:16
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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 rack5slot2.osadl.org (updated Sat Dec 27, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36142202186,11sleep10-21swapper/107:08:511
33602187170,12sleep30-21swapper/307:05:333
34322175157,13sleep00-21swapper/007:06:300
3701210082,13sleep20-21swapper/207:09:582
211892510,0sleep10-21swapper/107:40:181
107172430,0sleep20-21swapper/207:20:172
38869991,4cyclictest9449-21munin-run08:25:010
38869982,3cyclictest19419-21sendmail-msp12:00:010
38869980,4cyclictest31841-21sendmail-msp11:20:010
38869962,4cyclictest7226-21munin-run12:39:590
38869960,3cyclictest4227-21idleruntime-cro09:20:010
38969950,4cyclictest0-21swapper/310:00:123
38969950,4cyclictest0-21swapper/309:15:133
38969950,4cyclictest0-21swapper/308:40:113
38969950,4cyclictest0-21swapper/308:40:103
38969950,1cyclictest14632-21idleruntime-cro07:30:013
38909950,4cyclictest22057-21cat12:05:012
38879951,3cyclictest0-21swapper/111:10:121
38879951,3cyclictest0-21swapper/110:20:141
38879951,3cyclictest0-21swapper/109:50:121
38879951,2cyclictest0-21swapper/112:00:121
38879951,2cyclictest0-21swapper/111:05:111
38879951,2cyclictest0-21swapper/109:20:131
38879951,2cyclictest0-21swapper/107:50:121
38879951,2cyclictest0-21swapper/107:30:121
38869951,3cyclictest0-21swapper/010:05:140
38969944,0cyclictest0-21swapper/309:40:223
38969944,0cyclictest0-21swapper/308:00:323
38969943,1cyclictest20177-21grep08:45:143
38969941,3cyclictest774-21snmpd12:00:273
38969941,1cyclictest0-21swapper/311:45:153
38969941,1cyclictest0-21swapper/310:15:133
38969941,1cyclictest0-21swapper/310:10:133
38969940,4cyclictest0-21swapper/312:25:103
38969940,4cyclictest0-21swapper/310:45:173
38969940,4cyclictest0-21swapper/307:45:133
38969940,4cyclictest0-21swapper/307:40:113
38969940,4cyclictest0-21swapper/307:30:123
38969940,4cyclictest0-21swapper/307:20:123
38969940,3cyclictest9650-21cat11:40:013
38969940,3cyclictest6983-21df07:15:013
38969940,3cyclictest5614-21hddtemp_smartct11:30:143
38969940,3cyclictest4471-21latency_hist08:15:013
38969940,3cyclictest29651-21cut08:00:013
38969940,3cyclictest29533-21latency_hist12:20:003
38969940,3cyclictest20184-21df10:55:143
38969940,3cyclictest1954-21sed09:15:013
38969940,1cyclictest6241-21munin-run07:15:013
38969940,1cyclictest18283-21sed11:55:163
38909943,1cyclictest7480-21cpuspeed07:15:152
38909943,1cyclictest31-21ksoftirqd/208:20:012
38909943,1cyclictest17494-21cut10:50:132
38909941,3cyclictest27978-21hddtemp_smartct10:05:172
38909941,1cyclictest0-21swapper/209:35:122
38909940,4cyclictest0-21swapper/211:20:142
38909940,4cyclictest0-21swapper/210:55:122
38909940,4cyclictest0-21swapper/209:45:202
38909940,4cyclictest0-21swapper/209:25:122
38909940,4cyclictest0-21swapper/208:47:442
38909940,3cyclictest9023-21grep11:35:212
38909940,3cyclictest5568-21perl10:25:152
38909940,3cyclictest12212-21/usr/sbin/munin11:45:192
38909940,3cyclictest0-21swapper/207:30:122
38909940,1cyclictest18364-21ntp_states08:40:172
38909940,1cyclictest18364-21ntp_states08:40:172
38879941,2cyclictest0-21swapper/112:10:111
38879941,2cyclictest0-21swapper/112:05:121
38879941,2cyclictest0-21swapper/110:45:121
38879941,2cyclictest0-21swapper/110:35:121
38879941,2cyclictest0-21swapper/109:45:131
38879941,2cyclictest0-21swapper/109:35:111
38879941,2cyclictest0-21swapper/109:30:011
38879941,2cyclictest0-21swapper/107:45:131
38879941,2cyclictest0-21swapper/107:35:101
38879941,2cyclictest0-21swapper/107:25:121
38879941,2cyclictest0-21swapper/107:20:131
38879941,1cyclictest0-21swapper/111:50:111
38879941,1cyclictest0-21swapper/109:15:131
38879940,4cyclictest0-21swapper/109:55:311
38879940,2cyclictest0-21swapper/109:05:121
38869944,0cyclictest0-21swapper/007:20:110
38869942,1cyclictest0-21swapper/007:10:120
38869941,2cyclictest0-21swapper/012:25:100
38869941,1cyclictest0-21swapper/009:10:120
38869940,4cyclictest22289-21apt-get12:05:020
38869940,4cyclictest0-21swapper/010:53:390
38869940,4cyclictest0-21swapper/010:32:500
38869940,4cyclictest0-21swapper/009:35:120
38869940,4cyclictest0-21swapper/007:15:050
38869940,3cyclictest8526-21ntp_states11:35:180
38869940,3cyclictest32403-21cat12:25:010
38869940,3cyclictest31904-21cat09:10:020
38869940,3cyclictest3053-21perl10:20:180
38869940,3cyclictest27637-21grep11:10:140
38869940,3cyclictest21090-21ntp_states07:40:170
38869940,3cyclictest13234-21hddtemp_smartct07:25:150
38869940,3cyclictest13229-21/usr/sbin/munin08:30:170
38869940,3cyclictest12736-21df_inode11:45:160
38869940,3cyclictest12138-21cat11:45:010
38869940,3cyclictest0-21swapper/009:30:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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