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2026-09-08 - 21:54
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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
Characteristics of the 100 highest latencies:
System rackcslot2.osadl.org (updated Tue Sep 08, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
126112820,0sleep00-21swapper/009:42:160
620927149,17sleep00-21swapper/007:05:140
619626754,9sleep10-21swapper/107:05:071
6650994210,32cyclictest0-21swapper/011:18:170
6650994210,31cyclictest0-21swapper/010:34:340
6650994110,31cyclictest0-21swapper/008:13:110
6650993923,15cyclictest0-21swapper/008:09:400
6650993911,24cyclictest20865-21ls12:13:110
6650993910,28cyclictest0-21swapper/011:01:450
6650993910,28cyclictest0-21swapper/010:43:170
6650993910,28cyclictest0-21swapper/010:11:110
6650993910,28cyclictest0-21swapper/009:30:350
6650993910,28cyclictest0-21swapper/007:23:340
6650993815,21cyclictest0-21swapper/012:21:350
6650993812,25cyclictest0-21swapper/011:25:160
6650993810,27cyclictest0-21swapper/011:30:420
6650993810,27cyclictest0-21swapper/011:11:450
6650993810,27cyclictest0-21swapper/009:51:110
6650993810,27cyclictest0-21swapper/009:18:090
6650993810,27cyclictest0-21swapper/008:18:160
6650993711,21cyclictest0-21swapper/010:22:250
6650993710,27cyclictest0-21swapper/008:24:040
6650993710,26cyclictest0-21swapper/011:53:020
6650993710,26cyclictest0-21swapper/011:48:070
6650993710,26cyclictest0-21swapper/010:40:350
6650993710,26cyclictest0-21swapper/010:40:350
6650993710,26cyclictest0-21swapper/010:06:430
6650993710,26cyclictest0-21swapper/009:57:250
6650993710,26cyclictest0-21swapper/009:14:200
6650993710,26cyclictest0-21swapper/009:08:070
6650993710,25cyclictest0-21swapper/012:33:550
6650993710,25cyclictest0-21swapper/011:43:140
6650993710,22cyclictest0-21swapper/007:08:110
6650993614,21cyclictest0-21swapper/007:50:040
6650993610,25cyclictest0-21swapper/011:14:050
6650993610,23cyclictest0-21swapper/012:26:280
6650993610,23cyclictest0-21swapper/012:12:370
6650993610,23cyclictest0-21swapper/011:04:370
6650993510,25cyclictest0-21swapper/009:26:550
6650993510,24cyclictest0-21swapper/010:25:060
6650993510,24cyclictest0-21swapper/009:03:150
6650993510,24cyclictest0-21swapper/007:43:480
6650993510,22cyclictest0-21swapper/011:58:200
6650993510,21cyclictest0-21swapper/012:04:250
665099350,8cyclictest0-21swapper/007:13:140
6650993410,24cyclictest0-21swapper/010:30:030
6650993410,24cyclictest0-21swapper/008:42:140
6650993410,24cyclictest0-21swapper/007:53:080
6650993410,23cyclictest0-21swapper/011:39:180
6650993410,23cyclictest0-21swapper/010:13:470
6650993410,23cyclictest0-21swapper/008:28:090
6650993310,23cyclictest0-21swapper/011:33:180
6650993310,22cyclictest0-21swapper/010:54:500
6650993310,22cyclictest0-21swapper/010:49:070
6650993210,21cyclictest0-21swapper/007:34:230
6650993110,19cyclictest0-21swapper/012:28:070
6651993029,0cyclictest0-21swapper/110:58:341
6650993010,20cyclictest0-21swapper/010:01:270
6651992910,7cyclictest0-21swapper/109:32:081
6651992910,18cyclictest0-21swapper/110:53:081
6650992910,19cyclictest0-21swapper/008:53:050
6650992910,18cyclictest0-21swapper/009:46:370
6650992910,18cyclictest0-21swapper/007:18:120
6651992817,10cyclictest0-21swapper/109:04:321
6650992810,17cyclictest0-21swapper/008:02:110
665199274,22cyclictest0-21swapper/112:33:161
6651992710,16cyclictest0-21swapper/109:47:441
665099272,3cyclictest14706-21latency_hist08:52:570
665199266,20cyclictest0-21swapper/107:24:241
665199261,2cyclictest0-21swapper/112:01:501
6650992610,4cyclictest0-21swapper/009:02:050
6650992610,16cyclictest0-21swapper/009:35:580
6650992610,15cyclictest0-21swapper/008:06:520
6651992512,13cyclictest0-21swapper/108:24:241
6651992510,5cyclictest0-21swapper/109:13:051
665199250,25cyclictest0-21swapper/110:43:461
6650992521,3cyclictest0-21swapper/008:37:290
665199249,15cyclictest0-21swapper/107:48:581
665199245,18cyclictest0-21swapper/110:37:421
6651992410,7cyclictest0-21swapper/111:08:141
6651992410,10cyclictest0-21swapper/111:56:591
665199240,23cyclictest0-21swapper/109:18:521
665199240,22cyclictest0-21swapper/109:50:341
665199234,1cyclictest3876-21kworker/u4:110:21:291
6651992320,2cyclictest976-21ssh12:31:431
6651992312,11cyclictest0-21swapper/108:18:081
665199230,23cyclictest0-21swapper/111:23:181
665199230,23cyclictest0-21swapper/110:49:501
665199230,16cyclictest24479-21snmpd09:36:381
3201322310,0sleep10-21swapper/109:23:131
6651992222,0cyclictest0-21swapper/111:33:261
6651992217,5cyclictest0-21swapper/108:50:221
6651992210,5cyclictest0-21swapper/108:33:091
665199220,21cyclictest0-21swapper/111:49:161
665199220,21cyclictest0-21swapper/110:13:071
665199220,1cyclictest0-21swapper/111:17:141
665199215,9cyclictest0-21swapper/107:33:081
665199212,18cyclictest0-21swapper/107:38:501
6651992121,0cyclictest0-21swapper/111:30:511
6651992112,3cyclictest0-21swapper/109:56:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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