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2025-05-02 - 12:30
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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 50 highest latencies:
System rackcslot0.osadl.org (updated Fri May 02, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242721840,6sleep14885799cyclictest23:59:506
99621350,1sleep3979-21sshd21:39:479
8215213195,31sleep140-21swapper/1419:15:196
8215213195,31sleep140-21swapper/1419:15:196
686421260,15sleep80-21swapper/819:13:0314
686421260,15sleep80-21swapper/819:13:0314
82362119103,11sleep10-21swapper/119:15:381
82362119103,11sleep10-21swapper/119:15:381
8256211794,18sleep20-21swapper/219:15:558
8256211794,18sleep20-21swapper/219:15:558
82952116104,7sleep40-21swapper/419:16:2910
82952116104,7sleep40-21swapper/419:16:2910
8275211691,21sleep30-21swapper/319:16:129
8275211691,21sleep30-21swapper/319:16:129
8392210592,9sleep120-21swapper/1219:17:094
8392210592,9sleep120-21swapper/1219:17:094
8428210490,9sleep110-21swapper/1119:17:403
8428210490,9sleep110-21swapper/1119:17:403
2827921040,2sleep40-21swapper/423:53:4710
8405210379,19sleep60-21swapper/619:17:1912
8405210379,19sleep60-21swapper/619:17:1912
345421030,1sleep40-21swapper/400:43:0010
345421030,1sleep40-21swapper/400:43:0010
329221020,2sleep60-21swapper/621:08:0012
2417221010,1sleep80-21swapper/800:31:3414
211152990,2sleep120-21swapper/1221:38:034
129062990,1sleep40-21swapper/422:16:1010
98342980,6sleep9885099cyclictest23:15:5315
320442970,2sleep15509-21systemd-journal00:42:397
320442970,2sleep15509-21systemd-journal00:42:397
163402960,12sleep80-21swapper/822:36:5014
7962940,1sleep65036-21nfsd21:34:4512
170992940,1sleep60-21swapper/600:40:0512
170992940,1sleep60-21swapper/600:40:0512
287812930,6sleep3884399cyclictest00:32:179
840429273,4sleep50-21swapper/519:17:1811
840429273,4sleep50-21swapper/519:17:1811
3222920,6sleep5884599cyclictest23:44:1011
154112910,1sleep40-21swapper/400:34:5810
154112910,1sleep40-21swapper/400:34:5810
734329073,13sleep00-21swapper/019:13:120
734329073,13sleep00-21swapper/019:13:120
325612900,1sleep10-21swapper/121:03:061
67162890,1sleep100-21swapper/1023:25:002
60872890,1sleep9881rcuc/923:35:0915
287392880,0sleep120-21swapper/1222:33:254
258082880,0sleep80-21swapper/822:42:5914
821428775,8sleep130-21swapper/1319:15:185
821428775,8sleep130-21swapper/1319:15:185
77592870,0sleep140-21swapper/1422:00:016
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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