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2025-11-13 - 03:37
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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 highest latencies:
System rack3slot6.osadl.org (updated Thu Nov 13, 2025 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
230992900,28sleep1251rcuc/119:45:301
9395998961,18cyclictest14-21ksoftirqd/020:25:210
9395998814,61cyclictest0-21swapper/022:25:150
9395998713,60cyclictest0-21swapper/021:30:180
9395998713,60cyclictest0-21swapper/021:30:180
9395998560,17cyclictest14-21ksoftirqd/023:50:140
9395998560,17cyclictest14-21ksoftirqd/023:50:130
9395998524,54cyclictest254-21systemd-journal23:37:190
9395998513,61cyclictest0-21swapper/000:20:250
9395998512,59cyclictest2677-21apt-get20:20:150
9395998512,59cyclictest0-21swapper/000:05:140
9395998512,59cyclictest0-21swapper/000:05:130
9395998427,49cyclictest448-21dbus-daemon20:45:010
9395998421,54cyclictest254-21systemd-journal19:46:350
9395998414,57cyclictest0-21swapper/021:05:140
9395998326,51cyclictest254-21systemd-journal23:46:090
9395998326,51cyclictest254-21systemd-journal20:36:440
9395998313,57cyclictest0-21swapper/021:55:140
9395998230,44cyclictest448-21dbus-daemon00:00:050
9395998213,55cyclictest0-21swapper/019:15:110
939599817,23cyclictest23774-21apt-get21:20:140
9395998118,54cyclictest254-21systemd-journal20:11:400
9395998114,56cyclictest0-21swapper/021:10:150
9395998114,55cyclictest0-21swapper/022:35:180
939599807,19cyclictest26697-21apt-get23:00:140
939599803,68cyclictest11919-21cat20:45:220
939599803,67cyclictest11730-21cut22:15:360
9395998018,54cyclictest254-21systemd-journal00:31:200
940299798,21cyclictest0-21swapper/119:40:151
939599797,19cyclictest9747-21apt-get19:10:250
9395997921,50cyclictest16766-21sort22:30:300
9395997920,51cyclictest254-21systemd-journal23:22:160
9395997919,54cyclictest3779-21sort21:55:000
9395997919,53cyclictest254-21systemd-journal00:11:170
9395997913,52cyclictest0-21swapper/021:35:150
940299786,55cyclictest0-21swapper/122:25:171
939599787,20cyclictest21216-21apt-get00:15:120
939599787,19cyclictest23197-21apt-get22:50:130
9395997814,50cyclictest0-21swapper/019:35:160
9395997812,54cyclictest0-21swapper/023:05:140
940299777,21cyclictest0-21swapper/122:30:171
939599777,18cyclictest14982-21apt-get20:55:150
9395997712,53cyclictest0-21swapper/019:50:150
782527732,32sleep00-21swapper/019:05:170
940299768,50cyclictest0-21swapper/122:55:141
9395997623,46cyclictest25808-21grep00:25:350
9395997623,46cyclictest25808-21grep00:25:340
9395997616,50cyclictest254-21systemd-journal20:20:010
9395997613,53cyclictest0-21swapper/021:25:150
940299759,48cyclictest0-21swapper/123:15:151
939599758,53cyclictest21464-21apt-get22:45:180
9395997518,52cyclictest14254-21cron22:25:010
9395997515,53cyclictest14256-21aten2.4-expect23:55:200
9395997515,53cyclictest14256-21aten2.4-expect23:55:190
940299746,50cyclictest0-21swapper/122:15:131
9402997438,21cyclictest26-21ksoftirqd/123:30:171
939599748,17cyclictest7397-21apt-get22:05:150
939599746,18cyclictest5661-21apt-get22:00:150
939599746,18cyclictest13768-21apt-get19:20:150
939599744,62cyclictest1-21systemd00:40:010
939599744,13cyclictest17075-21apt19:30:000
9395997421,47cyclictest448-21dbus-daemon23:14:590
940299737,50cyclictest0-21swapper/123:55:151
940299737,50cyclictest0-21swapper/123:55:151
940299736,52cyclictest0-21swapper/122:45:161
939599734,14cyclictest26081-21runrttasks22:55:420
9395997328,39cyclictest14-21ksoftirqd/023:41:410
940299728,13cyclictest0-21swapper/120:45:131
939599727,51cyclictest19721-21apt-get22:40:130
939599727,21cyclictest31961-21apt-get23:15:150
939599726,59cyclictest0-21swapper/019:30:210
939599725,59cyclictest0-21swapper/019:40:240
9395997220,46cyclictest487-21gdbus22:15:000
940299717,48cyclictest0-21swapper/121:00:121
939599718,58cyclictest0-21swapper/020:50:400
939599717,19cyclictest379-21apt-get21:45:170
939599716,58cyclictest0-21swapper/020:30:160
9395997121,44cyclictest4935-21sort23:30:010
9395997121,43cyclictest31108-21seq21:40:150
9395997117,18cyclictest254-21systemd-journal23:32:190
9395997116,17cyclictest27085-21proc_pri19:55:400
940299708,16cyclictest0-21swapper/121:05:161
940299707,10cyclictest0-21swapper/119:10:231
940299706,48cyclictest0-21swapper/119:35:131
939599705,58cyclictest0-21swapper/020:05:200
883627036,23sleep10-21swapper/119:06:241
940299696,48cyclictest0-21swapper/122:40:141
939599695,58cyclictest0-21swapper/021:02:420
940299686,48cyclictest0-21swapper/120:40:131
940299686,18cyclictest0-21swapper/123:00:141
940299685,50cyclictest0-21swapper/120:55:151
9395996824,35cyclictest22216-21chrt21:15:160
940299676,13cyclictest0-21swapper/121:45:131
939599677,21cyclictest28070-21apt-get20:00:140
940299667,43cyclictest0-21swapper/119:15:131
940299657,44cyclictest0-21swapper/120:50:151
9402996524,20cyclictest20827-21memory21:10:281
940299649,37cyclictest0-21swapper/119:50:201
940299638,42cyclictest0-21swapper/100:35:151
940299638,13cyclictest0-21swapper/119:25:201
940299627,13cyclictest0-21swapper/120:00:131
940299617,11cyclictest0-21swapper/122:20:131
9402996126,22cyclictest0-21swapper/100:30:151
9402996122,26cyclictest26-21ksoftirqd/121:30:171
9402996122,26cyclictest26-21ksoftirqd/121:30:161
9402996024,24cyclictest26-21ksoftirqd/122:50:121
9402996022,25cyclictest0-21swapper/121:50:141
9402996019,27cyclictest26-21ksoftirqd/121:20:131
940299597,16cyclictest505-21ntpd20:10:331
940299587,39cyclictest0-21swapper/119:55:221
940299587,36cyclictest0-21swapper/122:35:151
940299586,11cyclictest0-21swapper/123:20:151
9402995825,21cyclictest26-21ksoftirqd/120:30:121
9402995822,28cyclictest26-21ksoftirqd/123:25:181
940299576,36cyclictest0-21swapper/120:05:121
9402995716,15cyclictest26-21ksoftirqd/122:05:001
940299565,23cyclictest17691-21apt-get00:05:141
940299565,23cyclictest17691-21apt-get00:05:141
9402995622,19cyclictest0-21swapper/122:05:141
9402995616,28cyclictest26-21ksoftirqd/120:15:171
9402995524,25cyclictest0-21swapper/120:25:191
9402995510,39cyclictest0-21swapper/123:40:101
940299549,40cyclictest0-21swapper/123:05:221
940299549,39cyclictest0-21swapper/123:45:171
940299548,12cyclictest0-21swapper/100:00:201
940299548,11cyclictest7123-21apt-get23:35:141
940299546,36cyclictest0-21swapper/100:10:121
9402995424,26cyclictest0-21swapper/122:12:381
9402995411,38cyclictest0-21swapper/119:20:131
9402995410,10cyclictest0-21swapper/121:40:211
9402995317,22cyclictest0-21swapper/119:30:121
9402995310,13cyclictest0-21swapper/100:25:401
9402995310,13cyclictest0-21swapper/100:25:401
940299529,13cyclictest0-21swapper/121:25:261
9402995221,26cyclictest0-21swapper/123:10:211
9402995221,26cyclictest0-21swapper/121:55:321
9402995213,13cyclictest30609-21apt-get21:40:011
940299519,12cyclictest0-21swapper/123:50:331
940299519,12cyclictest0-21swapper/123:50:321
940299519,12cyclictest0-21swapper/120:20:261
940299517,10cyclictest0-21swapper/100:20:021
9402995119,25cyclictest0-21swapper/120:35:171
9402995112,10cyclictest22710-21ntpq21:15:281
9402995110,17cyclictest22913-21cat00:20:021
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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