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2026-06-22 - 08:03
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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 rack3slot6.osadl.org (updated Mon Jun 22, 2026 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3233321240,6chrt31481-21/usr/sbin/munin21:05:351
3233321240,6chrt31481-21/usr/sbin/munin21:05:351
221119910713,18cyclictest0-21swapper/023:05:130
22111999812,47cyclictest0-21swapper/023:15:120
2192029715,38sleep00-21swapper/019:09:250
22111999064,13cyclictest14-21ksoftirqd/023:55:130
22111999062,18cyclictest14-21ksoftirqd/020:55:130
264762880,5chrt0-21swapper/122:20:241
22111998865,12cyclictest14-21ksoftirqd/020:35:210
22111998658,18cyclictest14-21ksoftirqd/023:20:250
2211399846,72cyclictest0-21swapper/122:32:541
22111998454,19cyclictest14-21ksoftirqd/021:55:120
2211399836,23cyclictest20699-21apt-get22:05:141
22111998354,18cyclictest14-21ksoftirqd/022:40:140
22111998354,18cyclictest14-21ksoftirqd/019:40:140
22111998255,17cyclictest14-21ksoftirqd/022:25:140
22111998254,19cyclictest14-21ksoftirqd/000:20:140
22111998254,18cyclictest14-21ksoftirqd/023:40:140
2211399806,25cyclictest13147-21apt-get23:15:121
22111998055,14cyclictest14-21ksoftirqd/023:50:110
22111998052,18cyclictest14-21ksoftirqd/023:00:140
22111998010,31cyclictest12010-21chrt21:40:240
22113997922,18cyclictest457-21dbus-daemon00:00:041
22111997956,14cyclictest14-21ksoftirqd/022:55:120
2211399785,24cyclictest6258-21apt-get00:25:241
22111997848,18cyclictest14-21ksoftirqd/023:35:140
22113997737,32cyclictest26-21ksoftirqd/121:30:201
22113997730,17cyclictest457-21dbus-daemon23:45:001
22111997747,18cyclictest14-21ksoftirqd/021:25:130
2211399767,10cyclictest0-21swapper/120:40:341
22113997618,18cyclictest4899-21cat21:20:271
22111997647,19cyclictest14-21ksoftirqd/019:50:140
22111997646,19cyclictest14-21ksoftirqd/019:10:180
22111997646,17cyclictest14-21ksoftirqd/021:30:230
22111997644,18cyclictest0-21swapper/019:30:140
22113997526,16cyclictest243-21systemd-journal23:49:551
22113997522,15cyclictest31376-21tail22:35:181
22113997520,14cyclictest23789-21sort19:15:001
22113997518,18cyclictest31277-21gdbus00:05:051
22113997518,16cyclictest29916-21wc21:00:161
22111997548,18cyclictest14-21ksoftirqd/000:19:030
22113997418,16cyclictest30074-21cat19:30:221
2211199747,18cyclictest29259-21apt-get00:00:140
2211399736,24cyclictest20431-21apt-get23:35:151
22113997316,18cyclictest503-21snmpd21:46:101
22113997224,16cyclictest28931-21sed19:25:341
22113997221,17cyclictest11141-21sshd21:36:511
22113997218,17cyclictest503-21snmpd20:10:511
22113997216,17cyclictest2772-21/usr/sbin/munin22:45:271
2211399715,24cyclictest11411-21apt-get23:10:141
2211399715,24cyclictest11411-21apt-get23:10:141
22113997117,16cyclictest481-21gdbus00:25:001
22111997138,24cyclictest14-21ksoftirqd/019:35:200
22111997138,24cyclictest14-21ksoftirqd/019:35:200
22111997137,20cyclictest14-21ksoftirqd/019:55:120
2167927121,38sleep10-21swapper/119:07:201
2211399708,22cyclictest0-21swapper/100:35:261
2211399706,23cyclictest812-21apt-get19:40:141
2211399705,24cyclictest6085-21apt-get21:25:141
2211399704,16cyclictest26-21ksoftirqd/121:10:131
22113997033,9cyclictest26-21ksoftirqd/120:05:461
22113997017,18cyclictest23548-21awk22:10:361
22113997017,18cyclictest23548-21awk22:10:361
22113996919,16cyclictest9958-21seq23:05:201
22113996916,19cyclictest457-21dbus-daemon22:45:001
22111996940,23cyclictest14-21ksoftirqd/022:10:210
22111996940,23cyclictest14-21ksoftirqd/022:10:210
22111996936,19cyclictest0-21swapper/021:00:140
2211399684,17cyclictest17023-21cron21:55:001
22113996832,7cyclictest26-21ksoftirqd/120:02:321
2211399683,19cyclictest17442-21/usr/sbin/munin20:25:201
2211399673,33cyclictest20947-21apt-get20:35:241
22111996739,21cyclictest14-21ksoftirqd/023:25:220
22111996738,17cyclictest14-21ksoftirqd/021:15:150
22111996736,10cyclictest14-21ksoftirqd/019:20:000
22111996736,10cyclictest14-21ksoftirqd/019:20:000
22113996619,16cyclictest15441-21cut20:20:151
2211199666,46cyclictest11411-21apt-get23:10:110
2211199666,46cyclictest11411-21apt-get23:10:110
22111996639,21cyclictest14-21ksoftirqd/022:50:190
22111996638,20cyclictest14-21ksoftirqd/021:40:020
22111996637,17cyclictest0-21swapper/022:15:130
22111996635,20cyclictest0-21swapper/022:30:130
22111996622,34cyclictest31516-21aten2.4-expect21:05:160
22111996622,34cyclictest31516-21aten2.4-expect21:05:160
22111996621,36cyclictest22861-21aten2.4-expect20:40:150
22111996536,18cyclictest0-21swapper/019:25:140
22111996534,19cyclictest0-21swapper/021:45:130
22111996520,36cyclictest24051-21aten2.4-expect23:45:160
22111996436,20cyclictest27155-21runrttasks20:50:340
22111996420,35cyclictest26375-21aten2.4-expect19:20:180
22111996420,34cyclictest4446-21aten2.4-expect21:20:170
22111996336,21cyclictest14-21ksoftirqd/022:45:440
22111996322,33cyclictest6308-21aten2.4-expect00:25:270
22111996314,35cyclictest0-21swapper/023:30:140
22113996215,42cyclictest0-21swapper/122:25:191
2211199623,50cyclictest9948-21/usr/sbin/munin00:35:170
22111996234,22cyclictest14-21ksoftirqd/022:07:450
22111996232,23cyclictest14-21ksoftirqd/020:20:340
22111996229,21cyclictest8093-21apt-get20:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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