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2026-07-13 - 06:19
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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 Mon Jul 13, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
77152208174,22sleep20-21swapper/219:07:182
77152208174,22sleep20-21swapper/219:07:172
77232204169,23sleep00-21swapper/019:07:240
77232204169,23sleep00-21swapper/019:07:240
76512204171,22sleep10-21swapper/119:06:271
76512204171,22sleep10-21swapper/119:06:271
75902202168,22sleep30-21swapper/319:05:453
75902202168,22sleep30-21swapper/319:05:453
160882690,1sleep216089-21/usr/sbin/munin23:45:182
138491600,1ptp4l401ktimersoftd/300:35:243
138491590,1ptp4l401ktimersoftd/323:18:573
6842580,6sleep341-21ksoftirqd/320:00:103
138491570,1ptp4l401ktimersoftd/322:14:443
208812550,1sleep20-21swapper/219:35:132
208812550,1sleep20-21swapper/219:35:122
138491540,1ptp4l401ktimersoftd/323:20:123
79312520,2sleep10-21swapper/123:30:001
128082520,3sleep212807-21sshd19:16:032
8217995022,8cyclictest25-21ksoftirqd/121:40:271
138491500,1ptp4l401ktimersoftd/322:01:213
8217994817,4cyclictest25-21ksoftirqd/123:50:161
8217994817,4cyclictest25-21ksoftirqd/123:50:161
8217994716,4cyclictest25-21ksoftirqd/119:15:001
8217994617,4cyclictest25-21ksoftirqd/120:20:221
8217994616,6cyclictest25-21ksoftirqd/120:05:241
8217994615,7cyclictest25-21ksoftirqd/121:10:001
8217994521,3cyclictest25-21ksoftirqd/120:58:551
8217994513,4cyclictest25-21ksoftirqd/122:30:001
821799449,5cyclictest25-21ksoftirqd/121:30:151
138491440,0ptp4l401ktimersoftd/320:08:343
821799436,7cyclictest25-21ksoftirqd/122:05:251
821799436,4cyclictest25-21ksoftirqd/123:20:231
8217994316,7cyclictest25-21ksoftirqd/121:55:141
138491430,0ptp4l401ktimersoftd/320:50:083
138491430,0ptp4l401ktimersoftd/320:11:103
821799423,5cyclictest25-21ksoftirqd/120:30:191
821799422,36cyclictest1303-21runrttasks21:18:021
821799421,8cyclictest25-21ksoftirqd/120:35:201
8217994214,7cyclictest25-21ksoftirqd/122:55:241
8217994213,4cyclictest25-21ksoftirqd/122:50:221
8217994213,3cyclictest25-21ksoftirqd/122:20:161
8216994236,3cyclictest9-21ksoftirqd/021:20:000
8216994235,4cyclictest20563-21cron19:35:000
821799419,6cyclictest25-21ksoftirqd/123:55:271
821799417,8cyclictest25-21ksoftirqd/120:00:161
821799416,7cyclictest25-21ksoftirqd/121:00:121
821799415,6cyclictest25-21ksoftirqd/121:20:231
8217994136,3cyclictest25-21ksoftirqd/119:20:011
8217994136,3cyclictest25-21ksoftirqd/100:20:001
8217994128,9cyclictest25-21ksoftirqd/122:40:251
8217994114,7cyclictest25-21ksoftirqd/119:30:261
821899400,38cyclictest0-21swapper/221:55:232
821799408,7cyclictest25-21ksoftirqd/100:05:221
821799406,8cyclictest25-21ksoftirqd/119:35:241
821799406,8cyclictest25-21ksoftirqd/119:35:241
821799406,4cyclictest25-21ksoftirqd/120:45:011
821799406,3cyclictest25-21ksoftirqd/122:35:281
821799405,8cyclictest25-21ksoftirqd/119:40:281
821799404,6cyclictest25-21ksoftirqd/119:45:141
821799403,4cyclictest25-21ksoftirqd/100:25:211
821799402,4cyclictest25-21ksoftirqd/123:45:181
821799401,7cyclictest25-21ksoftirqd/100:20:161
821799401,5cyclictest25-21ksoftirqd/123:05:261
8217994010,8cyclictest25-21ksoftirqd/119:55:231
138491400,1ptp4l401ktimersoftd/319:27:373
821999392,36cyclictest15225-21kworker/3:019:10:443
821899390,37cyclictest0-21swapper/222:30:232
821799397,7cyclictest25-21ksoftirqd/100:10:261
821799397,6cyclictest25-21ksoftirqd/119:25:241
8217993933,3cyclictest25-21ksoftirqd/122:45:141
821799391,5cyclictest25-21ksoftirqd/123:10:271
8217993911,7cyclictest25-21ksoftirqd/100:35:221
8217993910,3cyclictest25-21ksoftirqd/100:30:151
138491390,0ptp4l401ktimersoftd/320:33:233
8219993832,4cyclictest41-21ksoftirqd/320:40:343
821899380,37cyclictest0-21swapper/221:00:232
821899380,37cyclictest0-21swapper/220:05:232
821899380,36cyclictest25313-21kworker/u8:020:55:242
821899380,1cyclictest24695-21ls00:00:332
821799389,4cyclictest25-21ksoftirqd/121:28:441
821799389,3cyclictest25-21ksoftirqd/120:10:181
821799385,2cyclictest121rcu_preempt22:00:131
8217993833,3cyclictest25-21ksoftirqd/120:50:241
8217993832,3cyclictest25-21ksoftirqd/123:20:001
8217993831,4cyclictest25-21ksoftirqd/120:48:291
821799380,10cyclictest25-21ksoftirqd/123:40:141
8216993833,3cyclictest9-21ksoftirqd/022:15:000
8216993831,4cyclictest9-21ksoftirqd/022:09:010
138491380,0ptp4l401ktimersoftd/321:20:143
138491380,0ptp4l401ktimersoftd/300:10:223
8218993730,4cyclictest33-21ksoftirqd/219:33:282
821899370,36cyclictest0-21swapper/223:25:332
821799374,3cyclictest121rcu_preempt23:35:141
821799374,2cyclictest121rcu_preempt21:45:251
8217993732,3cyclictest25-21ksoftirqd/119:25:001
8217993731,4cyclictest25-21ksoftirqd/119:50:321
8217993731,3cyclictest25-21ksoftirqd/123:05:011
821799371,4cyclictest25-21ksoftirqd/122:15:221
8216993732,3cyclictest9-21ksoftirqd/019:15:000
8216993731,4cyclictest9-21ksoftirqd/022:54:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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