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2026-06-24 - 11:21
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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 highest latencies:
System rack6slot6 (updated Wed Jun 24, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212019910720553448,53690cyclictest134850irq/9-eth023:17:390
212019910701553467,53456cyclictest0-21swapper21:31:590
212019910692053462,53337cyclictest21864-21diskmemload00:09:440
212019910682353446,53281cyclictest1994-21sendmail23:13:380
212019910666153432,53139cyclictest9-21ksoftirqd/021:12:430
212019910666153427,53145cyclictest21191-21cyclictest22:05:490
212019910659953433,53075cyclictest0-21swapper22:14:210
212019910654953389,53095cyclictest0-21swapper23:36:250
212019910654053415,53034cyclictest0-21swapper19:46:180
212019910651953457,53062cyclictest0-21swapper19:44:180
212019910649953473,53026cyclictest0-21swapper22:02:580
212019910647953426,53053cyclictest0-21swapper21:05:410
212019910647553399,53076cyclictest0-21swapper19:29:340
212019910646753457,53010cyclictest0-21swapper20:49:170
212019910646153474,52987cyclictest0-21swapper22:38:480
212019910645053447,53003cyclictest0-21swapper23:52:190
212019910644653387,52995cyclictest9-21ksoftirqd/020:57:090
212019910644553431,52949cyclictest10-21rcuc/020:39:040
212019910644153398,53043cyclictest0-21swapper19:54:110
212019910643653436,53000cyclictest0-21swapper23:24:510
212019910643453438,52996cyclictest0-21swapper00:16:460
212019910643153438,52993cyclictest0-21swapper22:44:400
212019910641553427,52988cyclictest0-21swapper23:56:200
212019910639653459,52846cyclictest0-21swapper23:44:170
212019910635553440,52794cyclictest3012650ssh22:53:520
212019910625753387,52805cyclictest0-21swapper20:40:440
212019910621853475,52743cyclictest0-21swapper00:24:290
212019910621753471,52746cyclictest0-21swapper23:00:340
212019910619953405,52794cyclictest0-21swapper19:55:510
212019910616753406,52761cyclictest0-21swapper20:08:350
212019910614553395,52750cyclictest0-21swapper21:37:200
212019910614153393,52748cyclictest0-21swapper19:38:060
212019910552152970,52548cyclictest21217-21ssh00:14:060
212019910527052944,52323cyclictest12122-21ssh22:27:350
212019910526353034,52226cyclictest8317-21sh22:21:530
212019910507752986,52089cyclictest0-21swapper21:18:250
21201995350927,0cyclictest0-21swapper20:02:030
21201995350627,475cyclictest0-21swapper21:43:420
21201995336927,53342cyclictest0-21swapper22:47:310
21201995324926,0cyclictest0-21swapper20:27:500
21201995308727,53060cyclictest0-21swapper21:04:310
21201995306025,53035cyclictest0-21swapper19:30:340
21201995287412,52859cyclictest761-21ssh22:58:040
212019936131817,1793cyclictest1741-21hald19:12:090
212019923011064,1111cyclictest25997-21ssh23:34:340
212019922951094,1108cyclictest134850irq/9-eth000:30:000
212019921881027,1036cyclictest2790-21gnome-settings-21:49:040
212019921681046,1030cyclictest9-21ksoftirqd/021:51:340
212019920691026,1009cyclictest0-21swapper20:16:270
21201992048974,1033cyclictest1294-21ssh21:25:370
21201992037993,1010cyclictest0-21swapper00:01:020
212019920261060,873cyclictest9-21ksoftirqd/022:30:160
212019919831031,859cyclictest0-21swapper20:53:080
212019919791029,856cyclictest0-21swapper21:22:460
212019919511092,736cyclictest1907-21snmpd23:28:020
21201991928959,934cyclictest0-21swapper21:57:260
212019919171004,875cyclictest5522-21sh00:37:320
21201991833967,830cyclictest2893-21ssh00:34:210
212019917741034,648cyclictest9-21ksoftirqd/020:23:390
21201991707992,664cyclictest8155-21ssh23:08:370
212019916731014,596cyclictest21191-21cyclictest23:48:080
21201991513741,768cyclictest0-21swapper22:16:220
21201991508927,562cyclictest134850irq/9-eth020:10:150
212019914541067,387cyclictest0-21swapper20:31:110
212019914091068,341cyclictest0-21swapper19:24:420
21201991208614,590cyclictest27832-21hwlatdetect-tra19:15:090
235402850,1sleep023541-21hwlatdetect-tra19:08:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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