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2025-08-21 - 18:55
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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 Aug 21, 2025 12:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2180721090,5chrt21805-21ls12:25:011
639399967,78cyclictest24963-21apt-get08:00:160
6393999570,12cyclictest14-21ksoftirqd/007:40:170
6393999416,70cyclictest0-21swapper/010:45:120
6393999169,10cyclictest14-21ksoftirqd/009:50:170
6393999064,15cyclictest0-21swapper/009:55:120
6393998664,13cyclictest14-21ksoftirqd/011:10:120
6393998656,19cyclictest14-21ksoftirqd/009:25:150
6393998656,19cyclictest14-21ksoftirqd/009:25:150
6393998655,21cyclictest0-21swapper/010:20:140
6393998632,44cyclictest0-21swapper/012:30:150
6393998537,39cyclictest14-21ksoftirqd/008:15:170
6393998515,59cyclictest0-21swapper/008:35:130
639399846,64cyclictest1312-21apt-get08:25:160
6393998434,38cyclictest14-21ksoftirqd/008:45:140
6393998418,53cyclictest0-21swapper/010:05:150
6393998418,53cyclictest0-21swapper/010:05:140
6393998414,60cyclictest0-21swapper/010:00:180
6393998413,57cyclictest0-21swapper/009:40:130
6393998412,58cyclictest0-21swapper/008:10:150
6393998412,58cyclictest0-21swapper/008:10:150
58462846,23sleep10-21swapper/107:06:101
639399836,65cyclictest11380-21apt-get11:55:130
639399835,63cyclictest24725-21apt-get09:30:130
6393998355,17cyclictest14-21ksoftirqd/008:30:140
6393998315,56cyclictest0-21swapper/011:15:140
6393998315,56cyclictest0-21swapper/011:15:140
6393998313,55cyclictest0-21swapper/010:25:140
6393998312,60cyclictest0-21swapper/012:10:130
6393998312,57cyclictest0-21swapper/009:05:140
639399823,17cyclictest14318-21needreboot10:30:290
639399822,73cyclictest19173-21sed10:45:010
639399822,73cyclictest19173-21sed10:45:010
202712820,3sleep1251rcuc/109:15:381
639399817,62cyclictest2597-21apt-get11:30:140
6393998151,20cyclictest14-21ksoftirqd/010:50:160
6393998114,57cyclictest0-21swapper/012:25:150
6393998114,55cyclictest0-21swapper/011:45:130
6393998113,58cyclictest0-21swapper/007:25:150
6393998113,54cyclictest0-21swapper/011:40:130
6393998112,54cyclictest0-21swapper/008:40:140
639399806,58cyclictest857-21apt-get11:25:170
639399804,26cyclictest15135-21seq07:30:370
6393998013,54cyclictest0-21swapper/008:50:130
6393998012,58cyclictest0-21swapper/011:20:140
6393998012,57cyclictest0-21swapper/012:20:150
639399797,55cyclictest19717-21apt-get07:45:150
6393997917,52cyclictest420-21dbus-daemon10:15:000
6393997915,54cyclictest0-21swapper/007:20:140
6393997913,58cyclictest0-21swapper/007:35:160
607727919,50sleep00-21swapper/007:08:390
639399786,60cyclictest13897-21apt-get09:00:250
6393997814,53cyclictest0-21swapper/009:35:240
6393997812,54cyclictest0-21swapper/012:00:170
6393997810,56cyclictest0-21swapper/009:10:160
639399777,60cyclictest6472-21apt-get07:10:120
639399777,60cyclictest30323-21apt-get09:45:150
639399777,60cyclictest11837-21apt-get08:55:140
639399777,55cyclictest22743-21apt-get10:55:140
639399777,55cyclictest22743-21apt-get10:55:140
639399777,54cyclictest8731-21apt-get07:15:140
639399777,54cyclictest26699-21apt-get08:05:150
639399776,59cyclictest8418-21apt-get10:15:120
639399776,58cyclictest19170-21apt-get09:15:140
639399773,20cyclictest21790-21sshd07:50:200
639399773,20cyclictest21790-21sshd07:50:200
6393997717,49cyclictest0-21swapper/008:20:140
6393997712,50cyclictest0-21swapper/011:05:150
6399997617,44cyclictest0-21swapper/110:50:151
639399764,66cyclictest15705-21apt10:35:120
6393997613,50cyclictest0-21swapper/011:35:110
639399756,54cyclictest14878-21apt-get12:05:100
639399746,53cyclictest25410-21apt-get12:35:140
6393997422,48cyclictest261-21systemd-journal12:18:460
639399736,52cyclictest23195-21apt-get07:55:130
639399736,52cyclictest21242-21apt-get09:20:250
639399735,60cyclictest0-21swapper/011:50:240
106352720,6sleep10-21swapper/111:50:371
639399717,50cyclictest24506-21apt-get11:00:150
639999637,42cyclictest0-21swapper/110:30:141
639999615,12cyclictest0-21swapper/110:40:181
639999615,12cyclictest0-21swapper/110:40:181
639999615,11cyclictest0-21swapper/109:40:021
6399996012,34cyclictest0-21swapper/110:10:161
6399995927,17cyclictest4791-21apt-get08:35:131
6399995913,25cyclictest26-21ksoftirqd/111:25:001
639999587,38cyclictest0-21swapper/108:40:161
639999586,48cyclictest0-21swapper/112:10:351
6399995824,29cyclictest0-21swapper/110:24:551
639999582,29cyclictest0-21swapper/112:09:391
6399995810,42cyclictest0-21swapper/109:10:301
6399995734,18cyclictest420-21dbus-daemon07:40:011
639999568,35cyclictest0-21swapper/107:50:141
639999568,35cyclictest0-21swapper/107:50:141
6399995626,14cyclictest29776-21apt-get11:15:141
6399995626,14cyclictest29776-21apt-get11:15:141
6399995624,18cyclictest26-21ksoftirqd/110:55:141
6399995624,18cyclictest26-21ksoftirqd/110:55:141
639999557,34cyclictest0-21swapper/111:35:121
6399995527,16cyclictest4880-21apt-get10:05:151
6399995527,16cyclictest4880-21apt-get10:05:151
6399995524,16cyclictest19261-21apt-get10:45:121
6399995437,10cyclictest0-21swapper/111:46:301
6399995428,13cyclictest21927-21apt-get12:25:151
6399995423,16cyclictest3144-21apt-get10:00:181
6399995417,27cyclictest23668-21apt-get12:30:131
639999539,39cyclictest0-21swapper/109:00:171
639999538,40cyclictest0-21swapper/112:15:221
639999536,41cyclictest0-21swapper/108:07:401
639999535,43cyclictest0-21swapper/109:32:021
6399995338,10cyclictest0-21swapper/108:28:501
639999533,43cyclictest20639-21grep07:45:391
639999533,17cyclictest17336-21latency_hist09:10:011
6399995326,14cyclictest17974-21apt-get07:40:151
6399995326,13cyclictest30230-21apt-get08:15:151
6399995326,13cyclictest12236-21apt-get07:25:151
6399995325,17cyclictest13148-21apt-get12:00:171
6399995322,26cyclictest0-21swapper/108:55:151
6399995320,24cyclictest28583-21apt-get09:40:131
6399995317,22cyclictest3051-21apt-get08:30:141
6399995315,17cyclictest251rcuc/111:00:261
639999528,30cyclictest0-21swapper/112:35:131
639999527,40cyclictest0-21swapper/111:30:261
639999525,21cyclictest0-21swapper/110:16:121
6399995236,10cyclictest0-21swapper/109:45:381
6399995223,15cyclictest28488-21apt-get08:10:141
6399995223,15cyclictest28488-21apt-get08:10:141
6399995217,22cyclictest26-21ksoftirqd/108:53:531
6399995211,28cyclictest0-21swapper/107:20:131
639999516,40cyclictest0-21swapper/109:20:381
639999515,41cyclictest0-21swapper/107:20:011
639999515,39cyclictest0-21swapper/107:30:041
6399995125,15cyclictest28036-21apt-get11:10:141
6399995123,21cyclictest494-21gdbus10:35:041
639999512,17cyclictest1977-21sed09:55:271
6399995121,15cyclictest31994-21apt-get08:20:141
6399995116,23cyclictest26-21ksoftirqd/107:11:121
6399995116,22cyclictest26-21ksoftirqd/109:27:361
6399995116,22cyclictest26-21ksoftirqd/109:27:361
639999505,40cyclictest0-21swapper/111:55:321
6399995024,16cyclictest11922-21apt-get10:25:141
6399995019,25cyclictest0-21swapper/108:00:161
6399994933,10cyclictest0-21swapper/111:05:351
6399994932,10cyclictest1056-21seq11:25:221
6399994923,16cyclictest6152-21apt-get11:40:121
6399994824,17cyclictest494-21gdbus08:50:001
6399994618,13cyclictest32069-21apt-get09:50:181
6399994521,18cyclictest420-21dbus-daemon08:00:011
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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