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2025-12-01 - 21:42
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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 Mon Dec 01, 2025 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
206152226159,23sleep30-21swapper/307:08:533
204072206173,22sleep20-21swapper/207:06:092
205392202168,23sleep00-21swapper/007:07:530
205712201168,22sleep10-21swapper/107:08:181
136991700,1ptp4l401ktimersoftd/310:29:273
21000996520,9cyclictest25-21ksoftirqd/108:55:001
21000995830,5cyclictest25-21ksoftirqd/110:20:221
21000995827,4cyclictest25-21ksoftirqd/107:15:001
20999995828,4cyclictest9-21ksoftirqd/009:40:140
20999995828,4cyclictest9-21ksoftirqd/009:40:140
20999995827,4cyclictest9-21ksoftirqd/011:40:150
21000995623,4cyclictest25-21ksoftirqd/112:20:001
20999995629,4cyclictest9-21ksoftirqd/009:25:180
21000995526,4cyclictest25-21ksoftirqd/111:25:191
21000995523,4cyclictest25-21ksoftirqd/110:40:211
21000995523,4cyclictest25-21ksoftirqd/110:40:201
21000995519,9cyclictest25-21ksoftirqd/111:05:201
20999995526,4cyclictest9-21ksoftirqd/009:25:010
21000995422,3cyclictest25-21ksoftirqd/107:30:001
20999995425,3cyclictest9-21ksoftirqd/009:00:480
20999995424,3cyclictest9-21ksoftirqd/010:10:180
21000995324,4cyclictest25-21ksoftirqd/110:45:251
21000995324,4cyclictest25-21ksoftirqd/109:30:131
21000995322,4cyclictest25-21ksoftirqd/112:05:271
20999995326,3cyclictest9-21ksoftirqd/007:25:220
20999995325,3cyclictest9-21ksoftirqd/011:55:240
20999995324,3cyclictest9-21ksoftirqd/009:30:140
20999995323,4cyclictest9-21ksoftirqd/011:15:140
20999995323,3cyclictest9-21ksoftirqd/008:20:150
21000995222,4cyclictest25-21ksoftirqd/108:35:261
21000995221,4cyclictest25-21ksoftirqd/109:40:281
21000995221,4cyclictest25-21ksoftirqd/109:40:281
21000995219,4cyclictest25-21ksoftirqd/111:55:171
20999995226,3cyclictest9-21ksoftirqd/011:35:250
20999995226,3cyclictest9-21ksoftirqd/010:45:170
21000995122,4cyclictest25-21ksoftirqd/109:00:211
21000995121,4cyclictest25-21ksoftirqd/110:30:201
21000995120,4cyclictest25-21ksoftirqd/108:59:591
21000995115,4cyclictest25-21ksoftirqd/112:10:231
20999995134,4cyclictest9-21ksoftirqd/009:20:010
20999995126,8cyclictest9-21ksoftirqd/007:55:000
20999995122,3cyclictest9-21ksoftirqd/010:40:210
20999995122,3cyclictest9-21ksoftirqd/010:40:210
20999995122,3cyclictest9-21ksoftirqd/008:10:140
20999995121,4cyclictest9-21ksoftirqd/009:50:180
20999995121,3cyclictest9-21ksoftirqd/008:50:360
110782510,4sleep10-21swapper/110:10:141
21000995022,5cyclictest25-21ksoftirqd/108:10:201
21000995021,4cyclictest25-21ksoftirqd/107:50:221
21000995021,4cyclictest25-21ksoftirqd/107:15:271
20999995020,4cyclictest9-21ksoftirqd/012:25:180
21000994921,4cyclictest25-21ksoftirqd/111:35:161
21000994921,4cyclictest25-21ksoftirqd/108:15:251
21000994920,4cyclictest25-21ksoftirqd/110:25:221
21000994920,4cyclictest25-21ksoftirqd/109:45:261
21000994920,3cyclictest25-21ksoftirqd/110:00:191
21000994917,4cyclictest25-21ksoftirqd/111:15:231
21000994917,4cyclictest25-21ksoftirqd/111:10:211
21000994915,4cyclictest25-21ksoftirqd/112:00:161
20999994922,3cyclictest9-21ksoftirqd/008:05:190
20999994919,4cyclictest9-21ksoftirqd/010:35:150
20999994918,4cyclictest9-21ksoftirqd/012:35:240
21000994844,2cyclictest24824-21awk10:40:001
21000994821,4cyclictest25-21ksoftirqd/109:25:141
21000994819,4cyclictest25-21ksoftirqd/111:45:171
21000994817,3cyclictest25-21ksoftirqd/108:50:011
21000994815,4cyclictest25-21ksoftirqd/107:30:151
20999994820,4cyclictest9-21ksoftirqd/010:05:180
20999994819,4cyclictest9-21ksoftirqd/007:30:220
20999994819,3cyclictest9-21ksoftirqd/012:15:010
21000994719,4cyclictest25-21ksoftirqd/109:15:241
21000994719,4cyclictest25-21ksoftirqd/107:40:161
21000994718,4cyclictest25-21ksoftirqd/112:25:201
21000994718,4cyclictest25-21ksoftirqd/111:50:191
21000994718,4cyclictest25-21ksoftirqd/108:40:191
20999994715,3cyclictest9-21ksoftirqd/009:35:190
1371914735,6phc2sys0-21swapper/307:10:013
132691470,2getstats0-21swapper/307:59:003
21000994618,4cyclictest25-21ksoftirqd/108:29:441
21000994618,3cyclictest25-21ksoftirqd/109:20:181
21000994618,3cyclictest25-21ksoftirqd/107:55:181
21000994615,4cyclictest25-21ksoftirqd/110:07:501
21000994614,4cyclictest25-21ksoftirqd/110:55:131
20999994620,3cyclictest9-21ksoftirqd/007:20:260
20999994616,3cyclictest9-21ksoftirqd/007:10:200
20999994613,3cyclictest9-21ksoftirqd/010:00:150
20999994613,3cyclictest9-21ksoftirqd/007:35:170
2100099459,5cyclictest25-21ksoftirqd/109:35:231
21000994519,3cyclictest25-21ksoftirqd/111:00:261
21000994518,4cyclictest25-21ksoftirqd/112:20:141
21000994515,4cyclictest25-21ksoftirqd/108:30:271
21000994513,9cyclictest25-21ksoftirqd/108:05:221
194002450,2sleep20-21swapper/208:10:252
21000994412,9cyclictest25-21ksoftirqd/109:10:251
2099999444,9cyclictest9-21ksoftirqd/012:30:230
136991440,1ptp4l401ktimersoftd/308:43:083
21000994312,3cyclictest121rcu_preempt10:15:251
20999994329,4cyclictest9-21ksoftirqd/009:05:280
20999994328,4cyclictest9-21ksoftirqd/009:10:220
20999994328,3cyclictest9-21ksoftirqd/012:00:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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