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2026-08-19 - 01:16
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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
Characteristics of the 100 highest latencies:
System rackcslot2.osadl.org (updated Tue Aug 18, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1510527259,8sleep10-21swapper/107:03:291
1526927057,8sleep00-21swapper/007:04:010
113932660,0sleep10-21swapper/112:31:111
15845993410,1cyclictest0-21swapper/110:10:161
15844993110,2cyclictest0-21swapper/011:31:290
1584499290,28cyclictest0-21swapper/007:53:280
15844992810,3cyclictest0-21swapper/009:15:240
15844992810,1cyclictest0-21swapper/008:28:240
15845992712,10cyclictest0-21swapper/110:34:241
15844992721,4cyclictest802-21apache210:26:040
15844992710,1cyclictest0-21swapper/012:22:470
15844992710,0cyclictest0-21swapper/007:10:200
1584499270,23cyclictest0-21swapper/011:52:240
1584499270,15cyclictest20358-21kworker/u4:112:28:120
1584599266,19cyclictest0-21swapper/112:34:241
15845992625,1cyclictest0-21swapper/111:23:271
15845992625,1cyclictest0-21swapper/111:23:271
15845992612,12cyclictest100450irq/109-eth1-tx10:28:541
15845992610,3cyclictest0-21swapper/111:18:281
15844992611,5cyclictest0-21swapper/007:58:240
1584499260,3cyclictest28453-21ssh09:50:120
15845992517,5cyclictest0-21swapper/108:43:241
15845992511,6cyclictest21508-21apache207:23:261
1584599250,20cyclictest0-21swapper/111:16:031
1584499259,1cyclictest0-21swapper/011:07:230
15844992517,5cyclictest25726-21apache211:13:360
15844992510,8cyclictest0-21swapper/008:03:230
15844992510,6cyclictest0-21swapper/010:33:150
15845992422,1cyclictest636-21nscd10:39:491
15845992421,2cyclictest0-21swapper/112:18:271
15845992417,5cyclictest15842-21cyclictest10:02:051
15845992410,4cyclictest0-21swapper/112:12:141
1584599240,10cyclictest0-21swapper/111:58:201
1584499241,1cyclictest0-21swapper/009:25:320
15844992410,9cyclictest0-21swapper/011:00:480
1584599238,10cyclictest0-21swapper/108:13:231
1584599232,3cyclictest0-21swapper/109:38:081
15845992311,7cyclictest0-21swapper/107:40:581
15845992310,7cyclictest0-21swapper/109:12:391
15845992310,5cyclictest0-21swapper/108:12:091
15845992310,12cyclictest0-21swapper/107:28:291
1584499237,7cyclictest0-21swapper/008:13:070
15844992321,2cyclictest25741-21apache210:52:300
15844992320,3cyclictest25741-21apache209:36:570
15844992315,7cyclictest29758-21diskmemload10:53:240
15844992312,8cyclictest100150irq/106-eth1-rx09:43:190
1584499231,12cyclictest0-21swapper/010:13:180
15844992310,7cyclictest0-21swapper/009:19:080
15844992310,2cyclictest0-21swapper/011:57:590
15845992221,1cyclictest25741-21apache209:07:251
15845992217,3cyclictest24-21ksoftirqd/108:38:211
15845992216,3cyclictest25741-21apache210:15:521
15845992210,6cyclictest0-21swapper/109:29:051
15845992210,5cyclictest0-21swapper/107:58:231
15845992210,2cyclictest0-21swapper/109:56:261
15845992210,11cyclictest0-21swapper/110:45:241
1584599220,5cyclictest0-21swapper/110:23:451
1584599220,13cyclictest0-21swapper/108:23:271
15844992214,6cyclictest100150irq/106-eth1-rx10:04:140
1584499221,2cyclictest20358-21kworker/u4:111:25:560
1584499221,2cyclictest20358-21kworker/u4:111:25:560
15844992210,4cyclictest0-21swapper/010:43:040
1596422110,0sleep10-21swapper/111:04:121
1584599213,9cyclictest0-21swapper/109:33:191
15845992119,2cyclictest0-21swapper/107:36:221
15845992115,4cyclictest6221-21ssh10:51:051
15845992110,7cyclictest0-21swapper/112:23:241
15845992110,7cyclictest0-21swapper/109:43:311
15845992110,6cyclictest3470-21kworker/u4:210:54:041
15845992110,6cyclictest0-21swapper/111:38:531
15845992110,3cyclictest0-21swapper/110:18:191
1584499216,8cyclictest0-21swapper/007:38:180
15844992120,1cyclictest25741-21apache212:12:090
15844992116,3cyclictest5979-21kworker/u4:011:12:170
1584499211,2cyclictest0-21swapper/012:34:590
15844992112,5cyclictest0-21swapper/011:42:180
1584499211,1cyclictest0-21swapper/011:19:280
15844992110,4cyclictest0-21swapper/009:39:210
15844992110,3cyclictest0-21swapper/010:19:460
15844992110,1cyclictest0-21swapper/010:09:340
1584499210,0cyclictest0-21swapper/011:35:380
1584599203,13cyclictest0-21swapper/107:48:221
1584599201,9cyclictest0-21swapper/109:22:051
15845992019,0cyclictest24953-21python12:03:271
15845992018,1cyclictest15667-21kworker/u4:209:50:341
15845992013,7cyclictest0-21swapper/111:29:191
15845992011,3cyclictest0-21swapper/111:45:271
15845992010,7cyclictest0-21swapper/108:29:111
15845992010,5cyclictest0-21swapper/109:15:461
1584599200,1cyclictest31689-21ntp_states12:13:251
1584499204,9cyclictest0-21swapper/008:14:510
15844992020,0cyclictest0-21swapper/009:02:250
15844992010,7cyclictest0-21swapper/012:23:570
15844992010,6cyclictest0-21swapper/009:08:150
15844992010,4cyclictest0-21swapper/009:53:180
15844992010,4cyclictest0-21swapper/007:18:210
15844992010,3cyclictest0-21swapper/008:53:290
15844992010,3cyclictest0-21swapper/007:52:210
15844992010,2cyclictest0-21swapper/012:17:480
15844992010,1cyclictest0-21swapper/009:59:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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