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2026-07-13 - 10:54
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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 50 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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