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2025-12-16 - 14:44
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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 Tue Dec 16, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12497862231174,19sleep70-21swapper/707:08:077
12496042231174,17sleep40-21swapper/407:05:314
12498092222188,21sleep10-21swapper/107:08:261
12496912220187,21sleep50-21swapper/507:06:445
12496472216187,19sleep20-21swapper/207:06:102
12497552213181,20sleep30-21swapper/307:07:403
12497012212185,17sleep60-21swapper/607:06:536
12498532204175,19sleep00-21swapper/007:09:040
125016399340,6cyclictest369-21systemd-journal11:50:017
125016399330,32cyclictest0-21swapper/710:03:177
125016399310,30cyclictest0-21swapper/709:35:017
125016399310,29cyclictest1426921-21turbostat.cron12:35:017
1250160993127,3cyclictest369-21systemd-journal07:30:026
125016099310,30cyclictest1316194-21apt09:10:016
125015799310,30cyclictest0-21swapper/511:00:025
1250154993130,1cyclictest700-21rs:main4
1250146993127,3cyclictest1280915-21taskset08:05:021
125014299312,28cyclictest0-21swapper/009:30:010
125016399300,3cyclictest0-21swapper/712:18:167
125016399300,29cyclictest0-21swapper/710:20:017
1250157993027,2cyclictest0-21swapper/511:45:025
125015799300,28cyclictest0-21swapper/512:18:165
1250152993023,4cyclictest1238002-21munin-node07:15:013
125015299300,29cyclictest1394633-21awk11:35:023
125015299300,1cyclictest491rcuc/310:53:163
125014899300,29cyclictest1410769-21debian-sa112:05:012
125014899300,29cyclictest0-21swapper/212:00:022
125014899300,29cyclictest0-21swapper/207:48:152
125014699300,30cyclictest1416175-21awk12:15:011
125014699300,29cyclictest1375738-21latency_hist11:00:011
125014699300,29cyclictest1305162-21turbostat.cron08:50:001
125014299300,30cyclictest1264465-21idleruntime-cro07:35:010
1250163992927,2cyclictest1-21systemd09:05:017
1250163992927,1cyclictest0-21swapper/708:08:177
1250163992925,3cyclictest0-21swapper/711:28:167
125016399290,28cyclictest0-21swapper/710:13:167
125016399290,28cyclictest0-21swapper/707:18:187
125016099290,28cyclictest0-21swapper/612:18:166
125016099290,28cyclictest0-21swapper/611:33:186
125016099290,28cyclictest0-21swapper/608:53:166
1250157992927,1cyclictest1267140-21cron07:40:015
125015799290,28cyclictest0-21swapper/511:03:175
125015799290,28cyclictest0-21swapper/510:18:155
125015799290,28cyclictest0-21swapper/509:18:165
125015799290,28cyclictest0-21swapper/508:35:015
125015799290,28cyclictest0-21swapper/508:08:175
125015799290,28cyclictest0-21swapper/508:03:165
125015799290,0cyclictest0-21swapper/510:03:175
125015499290,28cyclictest1389872-21apt-get11:28:184
125015499290,28cyclictest1297730-21http08:38:174
125015499290,28cyclictest0-21swapper/410:13:174
125015499290,28cyclictest0-21swapper/407:38:164
1250152992928,0cyclictest0-21swapper/308:38:163
125015299290,28cyclictest0-21swapper/309:58:163
125015299290,28cyclictest0-21swapper/309:23:173
125015299290,28cyclictest0-21swapper/307:23:173
1250148992928,1cyclictest0-21swapper/212:38:162
1250148992927,1cyclictest1333011-21apt-get09:43:172
125014899290,28cyclictest0-21swapper/207:40:022
125014899290,1cyclictest1276131-21apt-get07:58:172
125014699290,28cyclictest0-21swapper/111:33:181
1250142992928,1cyclictest0-21swapper/011:28:160
125014299290,28cyclictest1338390-21http09:53:170
125014299290,1cyclictest1319533-21apt-get09:18:160
1250163992827,1cyclictest0-21swapper/710:58:167
1250163992827,1cyclictest0-21swapper/709:00:017
1250163992827,1cyclictest0-21swapper/707:43:187
1250163992827,1cyclictest0-21swapper/707:23:187
1250163992826,2cyclictest0-21swapper/711:23:167
1250163992826,1cyclictest0-21swapper/709:28:187
1250160992828,0cyclictest0-21swapper/608:33:176
1250160992827,1cyclictest1284211-21apt-get08:13:166
1250160992826,1cyclictest1308495-21apt-get08:58:166
125016099280,28cyclictest0-21swapper/610:30:026
125016099280,27cyclictest0-21swapper/608:18:156
125016099280,0cyclictest0-21swapper/609:38:176
1250157992827,1cyclictest0-21swapper/508:18:165
1250157992826,1cyclictest0-21swapper/509:00:005
1250157992826,1cyclictest0-21swapper/508:48:165
1250157992824,3cyclictest0-21swapper/511:28:175
1250154992827,1cyclictest0-21swapper/409:58:154
1250154992827,1cyclictest0-21swapper/407:35:024
1250154992827,1cyclictest0-21swapper/407:23:174
1250154992826,1cyclictest0-21swapper/408:03:154
125015499280,28cyclictest0-21swapper/407:58:174
125015499280,27cyclictest0-21swapper/412:03:174
1250152992827,1cyclictest0-21swapper/310:18:163
125015299280,28cyclictest0-21swapper/312:20:023
125015299280,28cyclictest0-21swapper/310:38:163
125015299280,28cyclictest0-21swapper/309:33:173
1250148992826,1cyclictest1252717-21apt-get07:15:022
125014899280,1cyclictest0-21swapper/210:28:162
125014899280,0cyclictest0-21swapper/209:53:162
1250146992827,1cyclictest1406020-21apt-get11:58:181
1250146992827,1cyclictest1365632-21apt-get10:43:171
1250146992826,1cyclictest1387183-21apt-get11:23:171
125014699280,28cyclictest0-21swapper/110:30:021
1250142992828,0cyclictest0-21swapper/012:38:160
1250142992827,1cyclictest1362924-21apt-get10:38:150
125014299280,0cyclictest0-21swapper/011:33:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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