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2026-06-30 - 17:22
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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 rackdslot3.osadl.org (updated Tue Jun 30, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206171,23phc2sys0-21swapper/307:06:093
217622204171,22sleep20-21swapper/207:05:512
217562204169,23sleep10-21swapper/107:05:471
220572203170,22sleep00-21swapper/007:09:350
831421710,4sleep32238699cyclictest07:45:243
899321430,5sleep32238699cyclictest12:15:223
22384996128,10cyclictest25-21ksoftirqd/109:15:211
281912580,4sleep228194-21latency07:20:202
22384995827,3cyclictest121rcu_preempt09:50:001
22383995625,3cyclictest9-21ksoftirqd/008:35:190
2238599551,15cyclictest30513-21latency_hist08:35:012
22384995522,10cyclictest25-21ksoftirqd/108:55:201
22384995434,2cyclictest25-21ksoftirqd/109:35:191
22384995417,5cyclictest25-21ksoftirqd/108:35:131
22384995415,8cyclictest25-21ksoftirqd/108:15:211
22383995324,3cyclictest9-21ksoftirqd/012:30:230
22384995215,10cyclictest25-21ksoftirqd/109:05:201
237992510,2sleep20-21swapper/209:25:242
22384995120,10cyclictest25-21ksoftirqd/110:15:281
22384995119,9cyclictest25-21ksoftirqd/111:20:271
22384995119,9cyclictest25-21ksoftirqd/111:20:271
22384995115,7cyclictest25-21ksoftirqd/112:35:141
22383995122,4cyclictest9-21ksoftirqd/008:10:230
22383995121,4cyclictest9-21ksoftirqd/009:40:210
22383995119,3cyclictest9-21ksoftirqd/007:20:140
22384995013,3cyclictest121rcu_preempt10:20:271
22384995013,3cyclictest121rcu_preempt10:20:261
22384995011,10cyclictest25-21ksoftirqd/107:45:251
22383995023,3cyclictest9-21ksoftirqd/008:20:270
106512500,3sleep20-21swapper/211:15:002
22384994919,10cyclictest25-21ksoftirqd/110:50:181
22384994916,10cyclictest25-21ksoftirqd/108:05:011
22384994916,10cyclictest25-21ksoftirqd/107:15:131
22384994910,4cyclictest25-21ksoftirqd/109:25:131
22383994923,3cyclictest9-21ksoftirqd/009:35:240
22383994922,4cyclictest9-21ksoftirqd/012:10:010
22383994920,3cyclictest9-21ksoftirqd/012:30:000
139391490,1ptp4l401ktimersoftd/307:23:303
2238499488,4cyclictest25-21ksoftirqd/109:30:141
2238499487,3cyclictest25-21ksoftirqd/109:50:251
2238499487,3cyclictest25-21ksoftirqd/109:50:251
2238499483,3cyclictest25-21ksoftirqd/110:45:161
22384994830,3cyclictest25-21ksoftirqd/107:20:141
22384994812,9cyclictest25-21ksoftirqd/111:05:141
22383994822,3cyclictest9-21ksoftirqd/010:00:190
22383994821,3cyclictest9-21ksoftirqd/009:45:240
22383994817,3cyclictest9-21ksoftirqd/010:15:280
22383994816,4cyclictest9-21ksoftirqd/012:15:180
22383994815,3cyclictest9-21ksoftirqd/012:15:010
22383994814,4cyclictest9-21ksoftirqd/007:55:220
2238499472,3cyclictest25-21ksoftirqd/107:25:221
2238499472,2cyclictest121rcu_preempt11:25:241
22383994718,3cyclictest9-21ksoftirqd/010:30:240
22383994716,3cyclictest9-21ksoftirqd/011:50:180
139391470,1ptp4l391rcuc/309:06:013
2238499469,8cyclictest25-21ksoftirqd/107:30:201
2238499469,4cyclictest25-21ksoftirqd/108:55:011
2238499468,8cyclictest25-21ksoftirqd/111:55:161
2238499466,8cyclictest25-21ksoftirqd/108:45:191
22384994636,3cyclictest25-21ksoftirqd/112:10:191
2238499462,2cyclictest121rcu_preempt12:05:001
22384994613,8cyclictest25-21ksoftirqd/111:15:011
22385994540,3cyclictest9081-21sh07:50:002
2238499453,2cyclictest121rcu_preempt12:30:181
22384994511,4cyclictest25-21ksoftirqd/110:00:141
22384994510,8cyclictest25-21ksoftirqd/112:15:191
2238399458,6cyclictest9-21ksoftirqd/009:00:190
2238399455,2cyclictest121rcu_preempt07:15:280
22383994515,3cyclictest9-21ksoftirqd/011:45:000
2238399450,3cyclictest13056-21sshd11:20:000
2238499449,4cyclictest25-21ksoftirqd/110:25:141
2238499448,4cyclictest25-21ksoftirqd/107:35:121
22384994413,4cyclictest25-21ksoftirqd/109:10:181
2238499440,3cyclictest25-21ksoftirqd/110:40:181
22383994417,4cyclictest9-21ksoftirqd/008:56:000
22383994411,4cyclictest9-21ksoftirqd/008:50:000
139391440,0ptp4l401ktimersoftd/308:54:503
2238499438,10cyclictest25-21ksoftirqd/107:55:261
2238499434,3cyclictest25-21ksoftirqd/107:55:011
2238499434,3cyclictest121rcu_preempt11:00:281
2238499434,3cyclictest121rcu_preempt10:40:001
2238499433,7cyclictest121rcu_preempt08:20:281
2238499433,2cyclictest121rcu_preempt11:40:171
2238499432,7cyclictest121rcu_preempt11:45:181
2238499432,3cyclictest25-21ksoftirqd/107:40:181
22384994322,10cyclictest25-21ksoftirqd/107:15:001
2238499431,6cyclictest25-21ksoftirqd/108:10:151
2238399434,4cyclictest9-21ksoftirqd/009:05:210
22383994317,4cyclictest9-21ksoftirqd/007:40:200
22383994314,4cyclictest9-21ksoftirqd/010:25:240
22383994314,3cyclictest9-21ksoftirqd/007:35:180
22383994312,4cyclictest9-21ksoftirqd/008:15:250
139391430,0ptp4l401ktimersoftd/309:40:263
2238499424,2cyclictest25-21ksoftirqd/110:05:251
22384994238,2cyclictest25-21ksoftirqd/109:44:591
22384994229,10cyclictest25-21ksoftirqd/112:30:011
2238499421,2cyclictest25-21ksoftirqd/108:40:211
2238399429,4cyclictest9-21ksoftirqd/011:45:150
22383994215,4cyclictest9-21ksoftirqd/010:10:150
22383994213,3cyclictest9-21ksoftirqd/008:40:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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