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2025-11-18 - 12:01
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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 rackeslot5.osadl.org (updated Tue Nov 18, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1163399310,30cyclictest31407-21cron22:10:013
11630993027,3cyclictest0-21swapper/023:00:140
11630993027,2cyclictest303-21systemd-journal00:25:010
1163399290,28cyclictest0-21swapper/323:15:133
11632992928,0cyclictest31703-21apt-get22:10:132
11632992927,1cyclictest10402-21apt-get20:15:132
1163299290,28cyclictest31229-21munin-run00:25:012
1163299290,28cyclictest0-21swapper/223:35:122
1163299290,28cyclictest0-21swapper/223:15:142
1163299290,28cyclictest0-21swapper/220:20:122
1163299290,1cyclictest31420-21cron22:10:002
1163299290,1cyclictest0-21swapper/222:30:012
1163199290,28cyclictest5159-21apt-get20:05:141
1163199290,28cyclictest31418-21awk22:10:011
1163199290,28cyclictest1352-21apt-get21:05:131
1163099290,28cyclictest3698-21munin-run22:20:010
1163099290,28cyclictest25655-21perf19:40:010
1163099290,1cyclictest16221-21apt-get22:45:170
1163099290,1cyclictest15928-21awk22:45:010
11633992828,0cyclictest0-21swapper/320:20:133
11633992827,1cyclictest0-21swapper/322:10:123
11632992828,0cyclictest0-21swapper/200:30:132
11632992827,0cyclictest0-21swapper/222:40:162
11632992826,1cyclictest18541-21apt-get22:50:122
11631992828,0cyclictest0-21swapper/123:15:141
11631992827,0cyclictest25335-21munin-run23:05:011
1163199280,27cyclictest7784-21apt-get20:10:141
11630992828,0cyclictest31454-21apt-get21:00:140
11630992828,0cyclictest0-21swapper/023:25:150
11630992825,2cyclictest303-21systemd-journal00:40:010
11630992825,2cyclictest303-21systemd-journal00:40:000
1163099280,28cyclictest0-21swapper/023:35:120
1163099280,0cyclictest4261-21apt-get22:20:120
1163099280,0cyclictest0-21swapper/000:25:140
11633992727,0cyclictest0-21swapper/320:15:143
11633992727,0cyclictest0-21swapper/300:30:133
11633992726,1cyclictest0-21swapper/322:40:163
1163399270,27cyclictest0-21swapper/300:25:003
1163299270,27cyclictest0-21swapper/219:50:152
1163299270,0cyclictest0-21swapper/223:05:002
11631992727,0cyclictest7140-21apt-get23:35:121
11631992727,0cyclictest12760-21apt-get20:20:131
1163199270,0cyclictest0-21swapper/100:15:141
11630992727,0cyclictest16810-21apt-get23:55:020
11630992727,0cyclictest0-21swapper/020:15:140
11630992727,0cyclictest0-21swapper/020:10:030
11630992725,2cyclictest0-21swapper/000:10:120
1163099270,0cyclictest0-21swapper/020:40:120
11633992625,1cyclictest31485-21apt-get00:25:143
11633992624,2cyclictest29960-21sh23:15:003
11632992626,0cyclictest0-21swapper/223:45:132
11632992626,0cyclictest0-21swapper/219:40:162
11631992626,0cyclictest0-21swapper/122:40:151
11631992626,0cyclictest0-21swapper/122:10:131
11631992626,0cyclictest0-21swapper/120:15:141
11631992626,0cyclictest0-21swapper/119:50:151
11631992626,0cyclictest0-21swapper/100:30:131
11630992626,0cyclictest8358-21apt-get21:20:130
11630992626,0cyclictest0-21swapper/020:45:130
11630992626,0cyclictest0-21swapper/020:20:130
11630992626,0cyclictest0-21swapper/019:40:150
11630992625,1cyclictest12122-21apt-get23:45:130
11633992525,0cyclictest0-21swapper/323:45:133
11633992525,0cyclictest0-21swapper/322:50:133
11633992525,0cyclictest0-21swapper/322:15:163
11633992525,0cyclictest0-21swapper/319:40:163
11633992525,0cyclictest0-21swapper/319:30:123
11633992524,0cyclictest2493-21apt-get23:25:163
11632992525,0cyclictest4032-21apt-get00:35:162
11632992525,0cyclictest4032-21apt-get00:35:162
11632992525,0cyclictest0-21swapper/223:25:162
11632992525,0cyclictest0-21swapper/222:15:172
11632992525,0cyclictest0-21swapper/219:30:132
11632992525,0cyclictest0-21swapper/200:25:142
11632992524,1cyclictest609-21dbus-daemon23:15:012
11631992524,1cyclictest25937-21apt-get19:40:161
11631992524,1cyclictest1608-21apt-get22:15:171
11631992523,1cyclictest29959-21basename23:15:011
11630992525,0cyclictest2834-21apt-get20:00:140
11630992525,0cyclictest0-21swapper/021:10:150
11633992424,0cyclictest0-21swapper/320:10:153
11633992424,0cyclictest0-21swapper/300:35:163
11633992424,0cyclictest0-21swapper/300:35:163
11633992422,1cyclictest20939-21perf19:30:003
11632992424,0cyclictest0-21swapper/220:10:142
11631992424,0cyclictest0-21swapper/123:45:121
11631992424,0cyclictest0-21swapper/122:50:131
11631992424,0cyclictest0-21swapper/119:30:131
11631992424,0cyclictest0-21swapper/100:25:141
11630992424,0cyclictest0-21swapper/021:45:120
11630992424,0cyclictest0-21swapper/021:05:130
11630992424,0cyclictest0-21swapper/020:55:160
11630992423,0cyclictest0-21swapper/022:30:130
11633992323,0cyclictest6587-21apt-get22:25:143
11633992323,0cyclictest0-21swapper/323:00:143
11633992323,0cyclictest0-21swapper/319:50:153
11633992322,0cyclictest0-21swapper/323:55:133
11632992323,0cyclictest0-21swapper/221:10:152
11632992322,1cyclictest30313-21perf19:50:012
11631992323,0cyclictest0-21swapper/123:25:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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