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2026-01-11 - 12:48
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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 highest latencies:
System rackcslot2.osadl.org (updated Sun Jan 11, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1119821270,2sleep01280899cyclictest22:15:020
1245326852,8sleep00-21swapper/019:08:000
1252126653,9sleep10-21swapper/119:08:431
326132640,0sleep131782-21/usr/sbin/munin00:10:071
12808994510,34cyclictest1199-21runrttasks19:40:180
12808994410,33cyclictest8465-21ls22:10:110
12808994410,33cyclictest0-21swapper/000:32:570
12808994310,32cyclictest13823-21ls20:35:060
12808994310,32cyclictest0-21swapper/022:32:260
12808994310,32cyclictest0-21swapper/022:21:110
12808994310,32cyclictest0-21swapper/000:02:060
12808994210,31cyclictest0-21swapper/021:57:520
12808994210,31cyclictest0-21swapper/021:47:470
12808994210,31cyclictest0-21swapper/021:10:100
12808994110,30cyclictest0-21swapper/023:00:520
12808994110,30cyclictest0-21swapper/022:28:170
12808994110,30cyclictest0-21swapper/021:31:160
12808994110,30cyclictest0-21swapper/020:15:110
12808994010,29cyclictest0-21swapper/023:47:070
12808994010,29cyclictest0-21swapper/022:35:070
12808994010,29cyclictest0-21swapper/020:52:370
12808994010,28cyclictest0-21swapper/023:33:240
12808994010,25cyclictest0-21swapper/023:40:040
12808993910,29cyclictest0-21swapper/021:40:110
12808993910,28cyclictest0-21swapper/023:05:120
12808993910,28cyclictest0-21swapper/022:42:200
12808993910,28cyclictest0-21swapper/022:02:010
12808993910,28cyclictest0-21swapper/020:30:060
12808993910,28cyclictest0-21swapper/020:21:310
12808993910,28cyclictest0-21swapper/000:21:490
12808993810,27cyclictest0-21swapper/021:25:560
12808993810,27cyclictest0-21swapper/000:39:120
12808993810,22cyclictest0-21swapper/021:04:490
12808993710,27cyclictest0-21swapper/023:21:330
12808993710,26cyclictest0-21swapper/000:05:350
12808993610,25cyclictest0-21swapper/023:56:520
12808993610,25cyclictest0-21swapper/023:50:030
12808993610,25cyclictest0-21swapper/023:10:050
12808993610,25cyclictest0-21swapper/022:08:330
12808993610,25cyclictest0-21swapper/021:54:250
12808993510,25cyclictest0-21swapper/020:45:130
12808993510,24cyclictest0-21swapper/022:55:400
12808993510,24cyclictest0-21swapper/021:17:380
12808993510,24cyclictest0-21swapper/020:03:220
12808993510,24cyclictest0-21swapper/019:35:100
12808993510,24cyclictest0-21swapper/019:10:030
12808993510,24cyclictest0-21swapper/000:25:570
12808993510,24cyclictest0-21swapper/000:19:450
12808993411,22cyclictest0-21swapper/023:25:000
12808993410,24cyclictest0-21swapper/019:55:100
12808993310,23cyclictest0-21swapper/022:50:010
12808993310,22cyclictest0-21swapper/022:45:540
12808993310,22cyclictest0-21swapper/020:59:030
12808993310,21cyclictest0-21swapper/023:16:160
12808993210,22cyclictest0-21swapper/020:40:010
12808993210,21cyclictest0-21swapper/021:20:110
12808993210,21cyclictest0-21swapper/019:49:490
12808993210,16cyclictest0-21swapper/021:06:230
12808993118,12cyclictest10682-21apache200:12:560
12808993110,21cyclictest0-21swapper/019:21:580
12808993110,20cyclictest0-21swapper/019:15:090
12808992910,18cyclictest0-21swapper/023:36:030
12808992910,15cyclictest0-21swapper/020:25:050
12808992910,12cyclictest0-21swapper/020:05:030
12809992825,2cyclictest11421-21sh21:30:421
12808992810,18cyclictest0-21swapper/021:35:110
12808992810,15cyclictest10696-21apache219:31:000
12809992710,12cyclictest0-21swapper/120:55:061
12809992621,5cyclictest0-21swapper/121:08:451
12809992610,9cyclictest0-21swapper/123:54:381
12809992610,2cyclictest0-21swapper/123:19:211
12808992610,12cyclictest0-21swapper/019:25:250
12809992420,3cyclictest231ktimersoftd/122:40:381
12809992419,5cyclictest0-21swapper/120:07:291
12809992416,5cyclictest10682-21apache221:56:361
1280999241,22cyclictest26502-21diskmemload22:39:241
12808992410,14cyclictest0-21swapper/020:13:190
12809992321,1cyclictest636-21nscd23:04:011
12809992320,3cyclictest10682-21apache221:17:141
12809992319,4cyclictest10696-21apache200:22:051
12809992310,8cyclictest0-21swapper/121:28:441
12809992310,7cyclictest0-21swapper/122:45:341
12809992310,4cyclictest0-21swapper/123:10:071
12808992310,13cyclictest0-21swapper/019:50:020
1280999224,9cyclictest0-21swapper/120:45:151
1280999223,5cyclictest18608-21/usr/sbin/munin19:25:111
12809992220,0cyclictest0-21swapper/100:25:371
12809992214,7cyclictest10682-21apache223:08:241
12809992214,7cyclictest100150irq/106-eth1-rx22:12:361
12809992210,5cyclictest0-21swapper/121:50:011
1280999220,13cyclictest0-21swapper/100:00:101
1280999216,10cyclictest0-21swapper/120:10:031
1280999212,11cyclictest0-21swapper/119:15:031
1280999211,7cyclictest0-21swapper/123:32:361
12809992116,5cyclictest10696-21apache220:20:091
12809992110,7cyclictest0-21swapper/122:25:041
1280999206,13cyclictest0-21swapper/121:24:091
1280999205,8cyclictest0-21swapper/119:35:021
12809992019,1cyclictest10682-21apache221:00:071
12809992019,0cyclictest231ktimersoftd/119:40:011
12809992017,2cyclictest10682-21apache222:57:151
12809992012,8cyclictest0-21swapper/119:14:151
12809992012,7cyclictest10682-21apache222:09:111
12809992010,7cyclictest0-21swapper/123:45:171
12809992010,4cyclictest4488-21ssh00:16:121
1280999200,6cyclictest0-21swapper/120:40:041
1280999200,12cyclictest0-21swapper/100:05:021
719021910,0sleep10-21swapper/120:19:481
3231421910,0sleep10-21swapper/121:59:571
1280999193,8cyclictest8960-21munin-node00:30:121
1280999192,7cyclictest744-21snmpd20:30:021
12809991915,3cyclictest12806-21cyclictest21:36:271
12809991915,3cyclictest0-21swapper/123:26:171
12809991910,4cyclictest0-21swapper/120:50:011
12809991910,3cyclictest0-21swapper/123:20:011
12809991910,3cyclictest0-21swapper/121:14:391
3152621810,0sleep10-21swapper/119:56:111
1280999186,9cyclictest0-21swapper/121:45:051
1280999185,6cyclictest0-21swapper/121:40:061
1280999185,5cyclictest0-21swapper/122:15:041
1280999182,8cyclictest0-21swapper/120:00:021
12809991815,2cyclictest9683-21apache_processe23:40:021
12809991811,4cyclictest0-21swapper/122:54:231
12809991810,4cyclictest0-21swapper/122:19:521
12809991810,3cyclictest0-21swapper/122:30:051
1081321810,0sleep10-21swapper/120:26:531
1280999176,11cyclictest0-21swapper/119:53:031
1280999173,10cyclictest0-21swapper/123:35:011
12809991710,5cyclictest0-21swapper/120:35:021
12809991710,4cyclictest0-21swapper/119:45:071
12809991710,3cyclictest0-21swapper/123:55:051
12809991710,3cyclictest0-21swapper/100:37:491
12809991610,3cyclictest0-21swapper/119:30:021
1280999160,6cyclictest0-21swapper/119:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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