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2026-01-10 - 23:25
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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 Sat Jan 10, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3275726957,8sleep10-21swapper/107:07:361
3259926754,8sleep00-21swapper/007:05:560
281332660,0sleep00-21swapper/010:09:440
738993127,1cyclictest0-21swapper/110:38:051
738992910,19cyclictest0-21swapper/110:55:591
737992827,1cyclictest0-21swapper/011:45:100
738992718,5cyclictest10682-21apache211:48:551
737992725,1cyclictest636-21nscd09:41:050
737992710,11cyclictest0-21swapper/011:28:180
738992624,1cyclictest31590-21ssh11:40:041
738992614,6cyclictest10696-21apache209:15:321
738992610,15cyclictest0-21swapper/110:09:291
73899260,1cyclictest0-21swapper/111:15:111
737992625,1cyclictest0-21swapper/012:05:410
737992610,6cyclictest0-21swapper/010:40:040
738992525,0cyclictest0-21swapper/109:10:321
738992510,5cyclictest0-21swapper/111:13:171
737992519,5cyclictest802-21apache207:48:270
73799251,23cyclictest21996-21needreboot12:10:060
737992510,4cyclictest0-21swapper/010:34:560
738992416,4cyclictest10696-21apache209:36:451
73899240,0cyclictest0-21swapper/107:35:131
737992411,5cyclictest0-21swapper/009:30:020
737992410,6cyclictest0-21swapper/012:19:090
737992410,4cyclictest0-21swapper/012:21:550
737992410,4cyclictest0-21swapper/011:07:120
738992315,0cyclictest731-21cyclictest07:50:061
73799237,8cyclictest0-21swapper/011:00:030
737992320,2cyclictest81ktimersoftd/009:15:100
737992310,2cyclictest0-21swapper/009:55:040
73899222,12cyclictest0-21swapper/112:25:051
738992221,1cyclictest10696-21apache212:39:001
738992210,6cyclictest0-21swapper/110:45:101
738992210,5cyclictest0-21swapper/110:10:011
73799226,12cyclictest0-21swapper/010:10:040
73799222,18cyclictest100150irq/106-eth1-rx12:34:260
737992220,1cyclictest648-21nscd10:45:030
737992216,4cyclictest10682-21apache211:10:080
737992210,5cyclictest0-21swapper/010:57:520
737992210,5cyclictest0-21swapper/008:21:380
737992210,4cyclictest0-21swapper/011:17:120
737992210,3cyclictest0-21swapper/010:29:520
73899217,7cyclictest14807-21diskmemload09:50:011
73899215,8cyclictest0-21swapper/111:24:591
73899214,8cyclictest0-21swapper/108:20:061
73899212,9cyclictest0-21swapper/108:10:001
738992119,1cyclictest10696-21apache209:46:021
73899211,7cyclictest0-21swapper/112:22:011
738992115,5cyclictest23032-21kworker/1:110:26:301
73899210,15cyclictest0-21swapper/110:20:091
73899210,15cyclictest0-21swapper/110:20:091
737992120,0cyclictest8687-21kworker/u4:009:27:060
737992110,5cyclictest0-21swapper/009:09:530
737992110,1cyclictest0-21swapper/009:48:230
73899205,7cyclictest0-21swapper/110:50:011
73899202,17cyclictest0-21swapper/111:57:481
73899202,12cyclictest0-21swapper/107:15:061
738992013,6cyclictest28900-21ssh09:27:011
738992010,6cyclictest0-21swapper/112:02:481
738992010,5cyclictest0-21swapper/112:15:001
738992010,5cyclictest0-21swapper/110:15:021
738992010,5cyclictest0-21swapper/107:10:081
738992010,4cyclictest0-21swapper/109:59:591
738992010,3cyclictest0-21swapper/111:30:021
738992010,1cyclictest0-21swapper/111:05:251
738992010,1cyclictest0-21swapper/109:32:451
73799208,4cyclictest22358-21/usr/sbin/munin08:05:010
73799204,9cyclictest0-21swapper/009:20:020
73799203,11cyclictest0-21swapper/010:00:090
737992014,5cyclictest0-21swapper/010:25:000
737992011,3cyclictest579-21cron09:39:500
737992010,6cyclictest0-21swapper/008:15:010
737992010,5cyclictest0-21swapper/008:45:060
737992010,4cyclictest0-21swapper/012:37:050
737992010,3cyclictest0-21swapper/008:40:050
737992010,2cyclictest0-21swapper/007:35:300
73799200,18cyclictest0-21swapper/011:55:310
1783322010,0sleep00-21swapper/007:50:120
835221910,0sleep00-21swapper/007:29:330
73899194,6cyclictest0-21swapper/112:11:101
738991915,3cyclictest10696-21apache209:43:331
738991910,5cyclictest0-21swapper/112:34:401
738991910,5cyclictest0-21swapper/110:29:551
738991910,4cyclictest0-21swapper/107:45:061
738991910,2cyclictest0-21swapper/112:05:321
738991910,2cyclictest0-21swapper/109:22:561
73899190,8cyclictest0-21swapper/109:55:201
73799194,10cyclictest0-21swapper/008:30:050
737991918,1cyclictest10682-21apache212:27:390
737991914,3cyclictest10696-21apache211:21:320
737991910,6cyclictest0-21swapper/009:50:380
737991910,5cyclictest0-21swapper/007:15:070
737991910,4cyclictest0-21swapper/010:20:020
737991910,4cyclictest0-21swapper/010:20:020
737991910,3cyclictest0-21swapper/012:00:020
737991910,2cyclictest0-21swapper/010:17:590
737991910,1cyclictest0-21swapper/010:51:540
2918821910,0sleep00-21swapper/011:36:070
73899188,7cyclictest636-21nscd11:52:471
73899187,10cyclictest0-21swapper/109:00:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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