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2026-04-11 - 23:22
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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 rackdslot4.osadl.org (updated Sat Apr 11, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
627122760,8sleep26301-21multi.sh07:07:482
214922580,7sleep30-21swapper/307:07:423
305722310,11sleep00-21swapper/007:06:430
1686922280,5sleep116904-21multi.sh07:09:091
365921310,3sleep090299cyclictest07:15:030
1385918161,11phc2sys0-21swapper/307:10:003
55162620,1sleep05519-21sort11:35:190
903995929,7cyclictest25-21ksoftirqd/110:30:141
903995724,7cyclictest25-21ksoftirqd/108:40:001
138491570,9ptp4l401ktimersoftd/307:53:533
903995629,7cyclictest25-21ksoftirqd/112:35:241
903995623,5cyclictest25-21ksoftirqd/107:25:131
183152560,2sleep20-21swapper/208:50:012
903995427,7cyclictest25-21ksoftirqd/110:20:241
903995425,7cyclictest25-21ksoftirqd/108:25:011
903995420,7cyclictest25-21ksoftirqd/111:45:211
138491540,1ptp4l401ktimersoftd/308:42:583
138491540,1ptp4l401ktimersoftd/308:42:583
90399535,4cyclictest25-21ksoftirqd/110:00:171
903995324,7cyclictest25-21ksoftirqd/112:05:001
90399525,4cyclictest25-21ksoftirqd/110:35:271
903995220,7cyclictest25-21ksoftirqd/108:40:121
903995220,7cyclictest25-21ksoftirqd/108:40:121
90399517,7cyclictest25-21ksoftirqd/110:10:221
90399516,4cyclictest25-21ksoftirqd/110:15:231
90399516,4cyclictest25-21ksoftirqd/107:50:251
90399515,4cyclictest25-21ksoftirqd/109:50:251
90399515,4cyclictest25-21ksoftirqd/108:50:261
90399512,10cyclictest25-21ksoftirqd/111:05:141
903995118,7cyclictest25-21ksoftirqd/111:52:311
903995115,6cyclictest25-21ksoftirqd/111:25:231
90399505,8cyclictest25-21ksoftirqd/108:05:131
90399505,4cyclictest25-21ksoftirqd/111:35:161
90399505,3cyclictest25-21ksoftirqd/109:30:241
903995023,7cyclictest25-21ksoftirqd/107:35:211
903995021,8cyclictest25-21ksoftirqd/108:25:171
904994915,32cyclictest0-21swapper/207:55:242
90399496,6cyclictest25-21ksoftirqd/108:15:151
90399495,9cyclictest25-21ksoftirqd/110:45:241
90399495,8cyclictest25-21ksoftirqd/111:00:251
90399495,7cyclictest25-21ksoftirqd/111:55:211
90399495,3cyclictest25-21ksoftirqd/111:15:191
90399495,3cyclictest25-21ksoftirqd/108:45:011
90399494,9cyclictest25-21ksoftirqd/108:30:151
90399493,5cyclictest25-21ksoftirqd/112:20:151
90399493,4cyclictest25-21ksoftirqd/107:15:261
90399492,4cyclictest25-21ksoftirqd/107:30:141
138491490,0ptp4l391rcuc/311:35:173
90399486,8cyclictest25-21ksoftirqd/109:40:001
90399485,8cyclictest25-21ksoftirqd/112:05:241
90399485,7cyclictest25-21ksoftirqd/107:10:161
90399484,8cyclictest25-21ksoftirqd/109:05:201
90399483,4cyclictest25-21ksoftirqd/111:20:191
90399482,5cyclictest25-21ksoftirqd/111:30:151
903994818,7cyclictest25-21ksoftirqd/109:47:391
90399475,7cyclictest25-21ksoftirqd/107:45:001
90399465,8cyclictest0-21swapper/112:10:151
90399465,6cyclictest25-21ksoftirqd/109:25:191
90399465,6cyclictest25-21ksoftirqd/108:10:141
90399465,6cyclictest25-21ksoftirqd/107:50:001
90399464,7cyclictest25-21ksoftirqd/110:50:131
90399462,9cyclictest25-21ksoftirqd/108:55:011
90399462,7cyclictest25-21ksoftirqd/107:58:151
90499450,43cyclictest0-21swapper/211:45:242
90399456,7cyclictest25-21ksoftirqd/109:02:511
90399455,7cyclictest25-21ksoftirqd/110:25:151
90399455,7cyclictest25-21ksoftirqd/107:20:251
90399455,7cyclictest25-21ksoftirqd/107:20:251
90399454,7cyclictest25-21ksoftirqd/112:25:211
90399453,6cyclictest25-21ksoftirqd/111:40:231
90399453,4cyclictest25-21ksoftirqd/111:10:161
90399452,6cyclictest25-21ksoftirqd/112:30:201
90399452,6cyclictest25-21ksoftirqd/109:55:201
903994517,7cyclictest25-21ksoftirqd/110:43:121
904994415,27cyclictest0-21swapper/208:15:232
90399445,7cyclictest25-21ksoftirqd/110:55:181
90399442,9cyclictest25-21ksoftirqd/109:15:131
90399441,5cyclictest25-21ksoftirqd/109:20:251
90399432,5cyclictest0-21swapper/112:15:241
138491430,0ptp4l401ktimersoftd/309:32:153
904994236,3cyclictest25702-21cron10:10:002
904994222,17cyclictest33-21ksoftirqd/212:31:382
90399423,6cyclictest25-21ksoftirqd/110:05:151
90399422,7cyclictest25-21ksoftirqd/108:00:251
90399421,8cyclictest25-21ksoftirqd/109:10:221
90399414,9cyclictest25-21ksoftirqd/109:35:211
138491410,0ptp4l401ktimersoftd/308:06:133
90499380,36cyclictest14049-21cron11:55:002
50798380,2rtkit-daemon0-21swapper/207:17:102
138491380,1ptp4l401ktimersoftd/310:04:313
134991380,2getstats0-21swapper/307:25:173
905993731,4cyclictest41-21ksoftirqd/311:05:133
905993731,3cyclictest41-21ksoftirqd/310:30:013
905993730,4cyclictest41-21ksoftirqd/309:07:393
905993730,4cyclictest41-21ksoftirqd/308:22:423
904993732,3cyclictest33-21ksoftirqd/208:59:592
904993731,4cyclictest33-21ksoftirqd/210:11:012
904993731,4cyclictest33-21ksoftirqd/209:47:142
904993730,4cyclictest33-21ksoftirqd/211:26:022
904993730,4cyclictest33-21ksoftirqd/210:38:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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