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2025-06-12 - 13:37
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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
Characteristics of the 100 highest latencies:
System rack6slot6 (updated Thu Jun 12, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38219910743953446,53930cyclictest2399049kworker/u2:200:17:080
38219910715253388,53641cyclictest25439-21ssh22:44:210
38219910696753451,53392cyclictest10196-21ssh22:22:250
38219910670953466,53178cyclictest0-21swapper21:44:040
38219910668853427,53170cyclictest0-21swapper20:27:220
38219910668353448,53146cyclictest9-21ksoftirqd/020:43:360
38219910665953425,53144cyclictest9-21ksoftirqd/023:32:450
38219910663953429,53146cyclictest9-21ksoftirqd/019:38:080
38219910663653426,53119cyclictest9-21ksoftirqd/000:31:420
38219910659753441,53156cyclictest0-21swapper21:01:320
38219910658053468,53112cyclictest0-21swapper19:50:410
38219910656053391,53169cyclictest0-21swapper20:54:400
38219910654453386,53093cyclictest0-21swapper21:51:260
38219910651153456,53055cyclictest0-21swapper22:53:040
38219910650153473,53028cyclictest0-21swapper19:42:190
38219910649153420,53071cyclictest0-21swapper22:06:000
38219910648853467,53021cyclictest0-21swapper00:11:360
38219910648053460,53020cyclictest0-21swapper00:01:540
38219910647853432,53046cyclictest0-21swapper22:05:000
38219910647153472,52999cyclictest0-21swapper20:35:240
38219910646953414,53055cyclictest0-21swapper19:47:300
38219910646353455,53008cyclictest0-21swapper00:29:320
38219910644753446,53001cyclictest0-21swapper21:36:420
38219910644453445,52999cyclictest0-21swapper23:42:080
38219910644253459,52983cyclictest0-21swapper22:58:550
38219910644053474,52966cyclictest0-21swapper20:23:010
38219910643953424,53015cyclictest0-21swapper20:33:340
38219910643153475,52891cyclictest9-21ksoftirqd/020:16:490
38219910642953434,52995cyclictest0-21swapper20:10:370
38219910641253425,52987cyclictest0-21swapper22:18:240
38219910640753422,52985cyclictest0-21swapper23:56:020
38219910639953419,52980cyclictest0-21swapper00:22:290
38219910629053392,52805cyclictest0-21swapper19:29:050
38219910624453441,52803cyclictest0-21swapper22:37:590
38219910621253473,52739cyclictest0-21swapper19:33:560
38219910621053467,52743cyclictest0-21swapper20:08:360
38219910620953468,52741cyclictest0-21swapper20:03:450
38219910620353438,52765cyclictest0-21swapper20:55:500
38219910618453413,52771cyclictest0-21swapper21:10:340
38219910616453403,52761cyclictest0-21swapper19:57:030
38219910614853397,52751cyclictest0-21swapper21:33:110
38219910614453391,52753cyclictest0-21swapper22:27:460
38219910511153011,52095cyclictest0-21swapper00:37:040
38219910502452902,52120cyclictest17515-21ssh22:32:480
3821995355126,0cyclictest9-21ksoftirqd/023:22:020
3821995353226,438cyclictest0-21swapper23:02:060
3821995310325,52985cyclictest0-21swapper21:47:250
3821995285127,52824cyclictest0-21swapper21:08:340
38219924021055,1250cyclictest9-21ksoftirqd/023:07:180
38219923891004,1286cyclictest14538-21ssh23:14:200
38219922721051,1129cyclictest3809-21cyclictest23:19:510
38219922511095,1032cyclictest20959-21ssh00:08:250
38219922241068,1062cyclictest9-21ksoftirqd/022:47:520
38219921751014,1036cyclictest22384-21diskmemload21:57:280
38219921621020,1105cyclictest2101-21sh22:10:410
38219920191035,862cyclictest0-21swapper20:47:170
3821991963953,976cyclictest0-21swapper23:54:110
38219919471005,908cyclictest0-21swapper21:24:080
3821991889987,865cyclictest32066-21ssh23:38:470
38219917941011,689cyclictest0-21swapper23:49:200
38219917371011,689cyclictest22384-21diskmemload21:17:560
38219917151071,522cyclictest2740-21ssh21:26:390
38219916901024,666cyclictest0-21swapper23:26:430
3821991230613,614cyclictest31078-21hwlatdetect-tra19:14:210
3821991199596,600cyclictest13096-21hwlatdetect-tra19:24:440
3821991193594,595cyclictest5904-21hwlatdetect-tra19:19:320
1425021590,2sleep014251-21hwlatdetect-tra19:08:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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