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2026-08-14 - 16:48
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Fri Aug 14, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491209176,22phc2sys0-21swapper/307:09:173
261332206174,21sleep20-21swapper/207:09:172
258412204170,22sleep10-21swapper/107:05:351
258392204170,23sleep00-21swapper/007:05:330
26480996623,6cyclictest9-21ksoftirqd/008:35:300
26480996225,7cyclictest9-21ksoftirqd/010:05:190
139391610,1ptp4l401ktimersoftd/309:01:543
26480995933,4cyclictest9-21ksoftirqd/009:55:230
26481995824,7cyclictest25-21ksoftirqd/108:15:001
26480995831,5cyclictest9-21ksoftirqd/010:25:170
26480995826,7cyclictest9-21ksoftirqd/011:35:160
26480995428,4cyclictest9-21ksoftirqd/007:15:200
26480995420,6cyclictest9-21ksoftirqd/010:45:170
139391540,1ptp4l401ktimersoftd/308:05:223
2648199535,9cyclictest25-21ksoftirqd/112:30:261
2648199535,9cyclictest25-21ksoftirqd/110:25:181
26481995321,4cyclictest25-21ksoftirqd/112:23:031
26480995324,9cyclictest9-21ksoftirqd/010:50:200
26480995321,5cyclictest9-21ksoftirqd/011:00:150
26480995316,4cyclictest9-21ksoftirqd/008:55:180
2648199526,10cyclictest25-21ksoftirqd/110:30:151
26481995250,1cyclictest231rcuc/107:42:271
26481995249,2cyclictest231rcuc/110:17:321
26481995249,2cyclictest231rcuc/110:17:321
2648199523,9cyclictest25-21ksoftirqd/107:20:141
2648099524,7cyclictest9-21ksoftirqd/008:45:270
2648099523,9cyclictest9-21ksoftirqd/009:15:200
26480995219,9cyclictest9-21ksoftirqd/008:10:230
2648099520,9cyclictest9-21ksoftirqd/008:40:240
2648199515,9cyclictest25-21ksoftirqd/108:25:191
2648199515,9cyclictest25-21ksoftirqd/107:10:141
2648199514,8cyclictest25-21ksoftirqd/108:15:141
26481995147,2cyclictest231rcuc/108:30:201
2648199513,9cyclictest25-21ksoftirqd/111:50:231
2648199513,9cyclictest25-21ksoftirqd/109:40:241
26481995128,2cyclictest25-21ksoftirqd/111:20:501
2648099515,8cyclictest207-21systemd-journal07:40:000
2648099514,8cyclictest9-21ksoftirqd/011:35:010
2648099514,8cyclictest27459-21sshd10:33:550
139391510,0ptp4l401ktimersoftd/311:27:143
2648199505,7cyclictest25-21ksoftirqd/112:40:001
2648199505,7cyclictest25-21ksoftirqd/112:05:011
2648199504,8cyclictest25-21ksoftirqd/111:15:241
2648099508,4cyclictest27409-21cron08:20:000
2648099505,8cyclictest9-21ksoftirqd/012:30:010
2648099505,8cyclictest9-21ksoftirqd/011:55:250
26480995031,10cyclictest9-21ksoftirqd/011:00:000
26480995024,4cyclictest9-21ksoftirqd/007:21:050
2648099501,9cyclictest9-21ksoftirqd/007:45:170
2648099501,6cyclictest9-21ksoftirqd/009:40:000
2648099501,6cyclictest9-21ksoftirqd/007:50:120
5362490,2sleep0537-21df_abs08:30:140
2648199495,9cyclictest25-21ksoftirqd/111:55:221
2648199495,9cyclictest25-21ksoftirqd/111:10:231
2648199494,9cyclictest25-21ksoftirqd/108:05:131
2648199493,9cyclictest25-21ksoftirqd/109:55:141
2648199492,6cyclictest29801-21apt-get08:25:011
26481994919,6cyclictest25-21ksoftirqd/110:00:111
26481994916,4cyclictest25-21ksoftirqd/111:08:471
2648199486,11cyclictest25-21ksoftirqd/109:05:131
2648199485,8cyclictest25-21ksoftirqd/110:50:141
2648199484,10cyclictest25-21ksoftirqd/110:45:131
2648099485,2cyclictest9-21ksoftirqd/007:10:190
26480994832,5cyclictest9-21ksoftirqd/008:20:230
26480994831,5cyclictest9-21ksoftirqd/012:25:000
2648099481,6cyclictest9-21ksoftirqd/012:20:000
2648099480,6cyclictest9-21ksoftirqd/011:40:150
2648099480,6cyclictest9-21ksoftirqd/007:55:260
2648099480,10cyclictest9-21ksoftirqd/007:35:000
2648199475,9cyclictest25-21ksoftirqd/111:35:211
2648199475,9cyclictest25-21ksoftirqd/110:35:171
2648199475,9cyclictest25-21ksoftirqd/110:05:161
2648199474,10cyclictest25-21ksoftirqd/111:00:281
2648199473,7cyclictest25-21ksoftirqd/108:50:181
2648199473,5cyclictest25-21ksoftirqd/108:58:341
26481994710,6cyclictest25-21ksoftirqd/112:13:221
2648099476,9cyclictest9-21ksoftirqd/009:45:160
2648099476,8cyclictest9-21ksoftirqd/011:05:180
2648099476,10cyclictest9-21ksoftirqd/009:50:180
2648099475,7cyclictest9-21ksoftirqd/012:30:220
26480994732,4cyclictest9-21ksoftirqd/008:00:240
2648099472,5cyclictest9-21ksoftirqd/009:00:190
2648099471,10cyclictest9-21ksoftirqd/009:40:150
2648099470,9cyclictest9-21ksoftirqd/012:10:250
2648199464,9cyclictest25-21ksoftirqd/109:30:281
2648199464,8cyclictest25-21ksoftirqd/107:30:171
2648199461,5cyclictest25-21ksoftirqd/112:05:581
2648199460,5cyclictest25-21ksoftirqd/111:45:151
2648199460,43cyclictest241ktimersoftd/108:00:241
2648099466,8cyclictest9-21ksoftirqd/009:15:010
2648099464,3cyclictest0-21swapper/011:15:000
2648099463,9cyclictest9-21ksoftirqd/008:25:180
26480994631,6cyclictest9-21ksoftirqd/010:40:160
26480994631,5cyclictest9-21ksoftirqd/010:15:230
26480994631,5cyclictest9-21ksoftirqd/010:15:230
26480994629,9cyclictest9-21ksoftirqd/011:20:210
2648099461,9cyclictest9-21ksoftirqd/012:00:270
2648099461,10cyclictest9-21ksoftirqd/011:15:170
2648099460,6cyclictest9-21ksoftirqd/007:45:000
26481994542,2cyclictest231rcuc/110:57:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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