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2026-03-18 - 20:54
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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 792 highest latencies:
System rack1slot8.osadl.org (updated Wed Mar 18, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4183999344,894cyclictest0-21swapper/007:26:420
418499847780,39cyclictest0-21swapper/107:26:421
418399847766,53cyclictest0-21swapper/007:10:040
418499781698,49cyclictest0-21swapper/107:10:041
2286991660,4rtkit-daemon2285-21rtkit-daemon10:22:160
41839910788,14cyclictest0-21swapper/010:56:000
418499929,65cyclictest0-21swapper/107:50:001
228699900,13rtkit-daemon2285-21rtkit-daemon11:34:321
4183998915,7cyclictest0-21swapper/011:14:530
4184998611,62cyclictest0-21swapper/107:39:591
8202850,5sleep1819-21ssh11:38:231
418399857,28cyclictest0-21swapper/012:01:470
4183998510,19cyclictest0-21swapper/011:25:240
418399845,28cyclictest0-21swapper/010:36:410
4183998420,15cyclictest0-21swapper/012:19:280
4183998327,8cyclictest88850irq/46-eth0-tx-09:49:420
4183998320,18cyclictest0-21swapper/010:45:010
4183998319,18cyclictest0-21swapper/011:35:180
4183998310,20cyclictest0-21swapper/009:25:160
418399827,29cyclictest0-21swapper/010:12:480
418399827,28cyclictest0-21swapper/012:09:050
418399826,30cyclictest0-21swapper/011:55:430
418399826,27cyclictest0-21swapper/009:50:200
418399817,31cyclictest0-21swapper/010:07:120
418399816,30cyclictest0-21swapper/009:22:540
418399815,27cyclictest0-21swapper/009:19:170
4183998121,12cyclictest0-21swapper/012:10:380
4183998120,17cyclictest0-21swapper/011:20:130
4183998118,18cyclictest0-21swapper/008:40:010
418399808,29cyclictest0-21swapper/011:42:550
418399807,30cyclictest0-21swapper/010:33:570
418399806,29cyclictest0-21swapper/010:15:310
418399806,28cyclictest0-21swapper/010:28:280
418399806,14cyclictest0-21swapper/010:04:510
4183998027,8cyclictest88850irq/46-eth0-tx-12:30:000
4183998020,12cyclictest0-21swapper/012:21:570
4183998019,20cyclictest0-21swapper/011:50:050
418399798,29cyclictest0-21swapper/009:35:120
418399797,29cyclictest0-21swapper/012:31:300
418399797,25cyclictest0-21swapper/009:43:130
418399796,29cyclictest0-21swapper/009:31:510
418399795,29cyclictest0-21swapper/012:38:450
418399795,26cyclictest0-21swapper/009:10:590
418399795,14cyclictest0-21swapper/010:51:240
4183997918,14cyclictest0-21swapper/011:09:080
4183997916,17cyclictest0-21swapper/008:20:140
228699790,4rtkit-daemon2285-21rtkit-daemon09:05:050
418399787,30cyclictest0-21swapper/011:48:200
418399787,27cyclictest0-21swapper/011:32:430
418399786,60cyclictest0-21swapper/008:35:010
418399786,17cyclictest0-21swapper/011:15:330
418399785,26cyclictest0-21swapper/007:16:360
418399778,29cyclictest0-21swapper/009:00:010
418399777,22cyclictest0-21swapper/008:40:200
418399776,29cyclictest0-21swapper/010:46:050
418399776,28cyclictest0-21swapper/009:55:530
418399775,26cyclictest0-21swapper/011:00:550
4183997715,16cyclictest0-21swapper/008:15:240
4184997613,48cyclictest0-21swapper/112:26:591
418399766,26cyclictest0-21swapper/009:01:050
4183997615,6cyclictest31739-21tail08:25:150
418399748,20cyclictest0-21swapper/008:05:130
418399747,29cyclictest0-21swapper/008:00:260
418399745,61cyclictest0-21swapper/007:10:010
418399745,28cyclictest0-21swapper/007:42:510
418399736,20cyclictest0-21swapper/007:50:170
4184997218,35cyclictest0-21swapper/112:35:001
418399727,28cyclictest0-21swapper/007:45:190
418399726,59cyclictest0-21swapper/007:20:590
4183997221,17cyclictest0-21swapper/008:45:120
4184997119,33cyclictest0-21swapper/109:22:591
418399716,57cyclictest0-21swapper/007:30:120
418399716,46cyclictest0-21swapper/007:35:010
418399715,30cyclictest0-21swapper/008:10:170
4183997117,18cyclictest0-21swapper/007:55:110
4184997019,34cyclictest0-21swapper/111:24:591
4184997018,35cyclictest0-21swapper/108:01:001
418399705,59cyclictest0-21swapper/008:50:140
4184996917,36cyclictest0-21swapper/109:43:591
4184996819,34cyclictest0-21swapper/107:43:001
4184996818,30cyclictest0-21swapper/110:11:001
4184996815,38cyclictest0-21swapper/111:14:001
4184996718,28cyclictest0-21swapper/108:30:591
4184996616,35cyclictest0-21swapper/112:15:591
4184996615,32cyclictest0-21swapper/109:37:001
282672660,4sleep1251rcuc/111:30:001
4184996517,32cyclictest0-21swapper/111:05:591
228699650,3rtkit-daemon2285-21rtkit-daemon07:07:481
4184996418,32cyclictest0-21swapper/109:52:001
4184996414,35cyclictest0-21swapper/110:58:001
4184996318,31cyclictest0-21swapper/108:45:591
4184996316,30cyclictest0-21swapper/109:01:591
4184996315,33cyclictest0-21swapper/110:26:591
4184996315,30cyclictest0-21swapper/107:16:001
4184996312,32cyclictest0-21swapper/107:57:591
4184996217,34cyclictest0-21swapper/111:15:591
4184996216,32cyclictest0-21swapper/111:52:001
4184996214,31cyclictest0-21swapper/108:22:591
4184996214,30cyclictest0-21swapper/110:15:581
4184996214,30cyclictest0-21swapper/108:16:591
4184996117,29cyclictest0-21swapper/108:13:591
4184996114,33cyclictest0-21swapper/112:12:591
418499605,37cyclictest0-21swapper/108:08:591
4184996017,34cyclictest0-21swapper/107:32:591
4184996014,28cyclictest0-21swapper/110:44:001
4184996013,31cyclictest0-21swapper/107:53:001
4184996011,35cyclictest0-21swapper/109:47:581
4184995916,31cyclictest0-21swapper/108:44:591
4184995915,31cyclictest0-21swapper/112:21:591
4184995915,30cyclictest0-21swapper/107:21:001
4184995914,31cyclictest0-21swapper/112:08:001
4184995914,30cyclictest0-21swapper/108:26:591
4184995817,28cyclictest0-21swapper/110:30:591
4184995817,26cyclictest0-21swapper/109:31:591
4184995814,31cyclictest0-21swapper/110:48:001
4184995810,33cyclictest0-21swapper/109:08:591
4184995713,32cyclictest0-21swapper/111:46:001
4184995713,30cyclictest0-21swapper/111:41:591
4184995713,30cyclictest0-21swapper/108:35:591
418499566,37cyclictest0-21swapper/110:21:591
4184995614,28cyclictest0-21swapper/108:57:591
4184995612,31cyclictest0-21swapper/112:38:591
4184995412,30cyclictest0-21swapper/112:01:591
418499525,31cyclictest0-21swapper/111:00:591
4184995217,22cyclictest0-21swapper/112:00:001
4184995213,29cyclictest0-21swapper/109:10:591
4184995212,30cyclictest0-21swapper/109:57:591
4184995114,26cyclictest0-21swapper/108:53:591
4184995112,27cyclictest0-21swapper/110:38:591
418499496,36cyclictest0-21swapper/109:15:131
418499477,32cyclictest0-21swapper/109:25:141
228699470,5rtkit-daemon2285-21rtkit-daemon10:50:571
228699460,5rtkit-daemon2285-21rtkit-daemon10:08:501
4184994420,18cyclictest0-21swapper/110:00:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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