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2026-08-22 - 10:40
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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 Sat Aug 22, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29665998228,47cyclictest19710-21python320:10:321
2791727932,34sleep10-21swapper/119:05:141
29665997832,8cyclictest26-21ksoftirqd/121:25:171
293072787,60sleep00-21swapper/019:08:160
29662997435,25cyclictest0-21swapper/022:25:120
29662997236,30cyclictest0-21swapper/023:10:140
29662997138,19cyclictest3478-21apt-get00:00:130
29662997136,26cyclictest0-21swapper/020:50:150
29662997136,25cyclictest0-21swapper/021:00:110
29662997039,25cyclictest0-21swapper/000:20:130
29662997036,25cyclictest3391-21apt-get22:30:120
29662997034,24cyclictest0-21swapper/023:45:120
29662996937,25cyclictest0-21swapper/023:30:120
29662996935,25cyclictest0-21swapper/021:15:140
29662996934,29cyclictest0-21swapper/020:45:100
29662996933,22cyclictest0-21swapper/022:45:130
29662996933,22cyclictest0-21swapper/021:50:130
29665996845,17cyclictest16325-21cstates00:35:191
29662996836,26cyclictest0-21swapper/021:35:140
29662996836,26cyclictest0-21swapper/019:30:130
29662996835,28cyclictest0-21swapper/020:35:110
29662996835,27cyclictest0-21swapper/020:00:130
29662996834,28cyclictest0-21swapper/022:05:130
29662996834,23cyclictest0-21swapper/019:50:130
29662996834,23cyclictest0-21swapper/019:50:130
29665996743,18cyclictest27883-21sensors_temp22:05:331
2966299675,21cyclictest3063-21apt-get19:25:100
29662996737,23cyclictest0-21swapper/022:10:120
29662996737,23cyclictest0-21swapper/020:10:120
29662996736,25cyclictest0-21swapper/021:05:120
29662996735,24cyclictest0-21swapper/023:25:120
29662996735,24cyclictest0-21swapper/021:10:260
29662996735,21cyclictest0-21swapper/023:35:120
29662996733,20cyclictest0-21swapper/023:50:110
2966299666,19cyclictest9044-21apt-get00:15:120
29662996641,20cyclictest562-21runrttasks22:40:230
29662996636,25cyclictest0-21swapper/019:15:140
29662996636,25cyclictest0-21swapper/000:05:240
29662996636,24cyclictest0-21swapper/022:15:140
29662996636,19cyclictest0-21swapper/021:20:130
29662996635,25cyclictest0-21swapper/022:35:130
29662996634,25cyclictest0-21swapper/019:35:110
29662996633,27cyclictest0-21swapper/020:05:130
29662996633,23cyclictest18325-21apt-get21:40:120
29662996632,26cyclictest0-21swapper/000:35:120
29665996522,16cyclictest28302-21ntp_offset20:35:261
29662996535,24cyclictest0-21swapper/022:55:110
29662996535,24cyclictest0-21swapper/020:25:130
29662996534,25cyclictest0-21swapper/022:50:240
29662996534,21cyclictest0-21swapper/020:30:140
29662996534,20cyclictest0-21swapper/021:25:130
29662996534,19cyclictest0-21swapper/019:55:130
29665996417,41cyclictest0-21swapper/121:15:241
29662996443,11cyclictest29400-21apt-get20:40:140
29662996439,16cyclictest8355-21apt-get19:40:120
29662996437,13cyclictest14282-21apt-get00:30:130
29662996436,17cyclictest25302-21apt-get22:00:130
29662996436,17cyclictest25302-21apt-get22:00:130
29662996435,23cyclictest0-21swapper/000:10:130
29662996433,25cyclictest0-21swapper/019:20:100
29662996432,25cyclictest16267-21apt-get23:05:140
29665996338,12cyclictest26-21ksoftirqd/121:20:121
29665996337,20cyclictest19495-21runrttasks21:40:501
29665996336,23cyclictest26934-21telnet23:35:171
29665996333,25cyclictest14700-21unixbench_singl19:55:351
29665996315,42cyclictest0-21swapper/100:15:241
2966299636,18cyclictest20065-21apt-get21:45:110
29662996336,14cyclictest23540-21apt-get21:55:120
29662996331,26cyclictest0-21swapper/023:40:220
2966599627,46cyclictest7240-21apt-get22:40:221
29665996234,23cyclictest20527-21runrttasks23:15:311
29665996232,23cyclictest16461-21unixbench_singl20:00:351
29665996223,34cyclictest1181-21taskset23:51:321
29662996243,11cyclictest14527-21apt-get23:00:140
29662996236,19cyclictest1682-21apt-get23:55:110
29662996234,13cyclictest29738-21apt-get19:10:130
29665996133,21cyclictest19582-21chrt23:14:421
29665996133,21cyclictest1085-21runrttasks19:19:341
29665996132,24cyclictest24013-21ntpq23:25:271
29665996132,22cyclictest29738-21apt-get19:10:111
29665996131,24cyclictest24872-21seq21:57:341
29665996128,23cyclictest243-21systemd-journal19:30:001
29665996115,40cyclictest0-21swapper/100:05:151
29662996140,13cyclictest10094-21apt-get19:45:120
29662996136,15cyclictest21555-21apt-get23:20:130
29662996134,19cyclictest0-21swapper/000:25:140
29665996037,18cyclictest23984-21latency_hist20:25:011
29665996036,16cyclictest417-21apt-get20:50:121
29665996034,22cyclictest25981-21ls23:30:351
29665996033,22cyclictest21800-21/usr/sbin/munin21:50:371
29665996033,21cyclictest30143-21sh20:40:311
29665996032,23cyclictest10105-21grep22:45:351
29665996032,22cyclictest31052-21kernelversion22:15:261
29665996029,25cyclictest14833-21aten2.4_r3power21:30:191
29662996034,13cyclictest22368-21apt-get20:20:130
29665995935,17cyclictest21172-21missed_timers20:15:281
29665995935,16cyclictest5131-21apt-get22:35:121
29665995935,16cyclictest11838-21apt-get19:50:121
29665995935,16cyclictest11838-21apt-get19:50:121
29665995933,21cyclictest3960-21cat22:30:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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