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2026-03-15 - 18:50
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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 Sun Mar 15, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2420222160,3sleep324197-21od07:09:053
597922070,5sleep25978-21expr07:08:492
61312200167,22sleep00-21swapper/007:07:110
58932197164,22sleep10-21swapper/107:05:391
850921800,6sleep11342199cyclictest07:11:141
233721760,4sleep21342399cyclictest10:25:252
3068821410,6sleep11342199cyclictest08:05:111
1341699709,10cyclictest28359-21sort07:10:580
13423996833,6cyclictest33-21ksoftirqd/207:30:002
50512670,4sleep35058-21od07:12:443
13423996628,4cyclictest33-21ksoftirqd/207:55:192
225462640,6sleep31342499cyclictest08:55:123
13423996330,5cyclictest33-21ksoftirqd/207:10:272
13423996329,4cyclictest33-21ksoftirqd/208:30:002
1341699636,16cyclictest20164-21/usr/sbin/munin08:50:150
13423996229,10cyclictest33-21ksoftirqd/209:15:002
1341699629,10cyclictest18247-21sed09:50:250
1341699624,17cyclictest0-21swapper/010:35:000
13423996130,4cyclictest33-21ksoftirqd/208:45:002
13423996127,10cyclictest33-21ksoftirqd/211:40:142
13423996127,10cyclictest33-21ksoftirqd/211:40:132
13423996126,6cyclictest33-21ksoftirqd/212:40:012
13423996123,6cyclictest33-21ksoftirqd/207:20:112
1341699616,11cyclictest933-21sendmail12:40:000
1341699615,12cyclictest8973-21sed10:40:190
1341699615,12cyclictest8973-21sed10:40:180
13423996030,9cyclictest33-21ksoftirqd/208:35:272
13423996028,6cyclictest33-21ksoftirqd/210:05:242
13423996028,6cyclictest33-21ksoftirqd/207:50:142
13423996026,4cyclictest33-21ksoftirqd/209:50:232
13423996024,6cyclictest33-21ksoftirqd/211:35:262
13423996024,5cyclictest33-21ksoftirqd/212:15:222
13423996024,5cyclictest33-21ksoftirqd/207:45:242
13423996024,10cyclictest33-21ksoftirqd/210:35:002
1341699605,18cyclictest14853-21sed07:30:180
1342399596,7cyclictest33-21ksoftirqd/209:55:242
13423995928,4cyclictest33-21ksoftirqd/212:00:132
13423995926,10cyclictest33-21ksoftirqd/212:10:232
13423995926,10cyclictest33-21ksoftirqd/212:10:232
13423995925,5cyclictest33-21ksoftirqd/212:05:182
13423995923,9cyclictest33-21ksoftirqd/211:15:012
13423995923,5cyclictest33-21ksoftirqd/207:15:182
13423995922,6cyclictest33-21ksoftirqd/211:50:262
13423995922,5cyclictest33-21ksoftirqd/207:40:132
13423995921,6cyclictest33-21ksoftirqd/212:30:152
13423995824,5cyclictest33-21ksoftirqd/208:10:202
13423995823,6cyclictest33-21ksoftirqd/211:00:162
1341699589,10cyclictest17127-21grep08:40:270
1341699584,11cyclictest779-21cpuspeed_turbos08:10:140
1341699583,15cyclictest0-21swapper/007:45:130
13423995727,9cyclictest33-21ksoftirqd/209:00:132
13423995724,6cyclictest33-21ksoftirqd/209:30:132
13423995723,5cyclictest33-21ksoftirqd/210:00:032
1341699577,10cyclictest18904-21cut12:10:000
1341699577,10cyclictest16539-21cat12:05:000
1341699576,10cyclictest28135-21wc08:00:020
13423995625,9cyclictest33-21ksoftirqd/211:45:232
13423995624,5cyclictest33-21ksoftirqd/211:05:122
13423995623,5cyclictest33-21ksoftirqd/211:55:252
13423995621,11cyclictest33-21ksoftirqd/210:45:182
1341699569,9cyclictest6047-21expr10:35:130
1341699567,10cyclictest27896-21awk12:25:280
1341699566,11cyclictest7664-21perl11:45:130
1341699566,10cyclictest9269-21date09:35:000
1341699563,17cyclictest0-21swapper/011:20:180
1341699563,15cyclictest0-21swapper/010:55:210
13416995610,9cyclictest30187-21timerwakeupswit12:30:280
13423995526,5cyclictest33-21ksoftirqd/208:55:162
13423995523,6cyclictest33-21ksoftirqd/208:45:182
13423995522,4cyclictest33-21ksoftirqd/207:35:002
13423995521,8cyclictest33-21ksoftirqd/211:34:062
13423995519,6cyclictest33-21ksoftirqd/209:05:232
1341699557,15cyclictest10288-21irqrtprio09:35:170
1341699556,11cyclictest19809-21sed12:10:180
1341699556,11cyclictest19809-21sed12:10:170
1341699554,16cyclictest0-21swapper/007:20:120
1341699553,18cyclictest0-21swapper/009:15:150
139391540,1ptp4l401ktimersoftd/311:19:423
13423995425,4cyclictest33-21ksoftirqd/211:25:172
13423995423,9cyclictest33-21ksoftirqd/211:20:112
13423995423,7cyclictest33-21ksoftirqd/208:30:122
1341699549,9cyclictest11633-21/usr/sbin/munin07:25:100
1341699544,11cyclictest27062-21cut10:10:180
1341699544,11cyclictest27062-21cut10:10:170
1341699543,18cyclictest0-21swapper/011:50:240
1341699543,15cyclictest0-21swapper/011:35:140
22152520,1sleep10-21swapper/110:25:231
1342399526,6cyclictest33-21ksoftirqd/208:05:152
13423995222,5cyclictest33-21ksoftirqd/209:25:152
13423995212,5cyclictest33-21ksoftirqd/211:00:002
1341699529,9cyclictest18029-21expr08:45:120
1341699526,17cyclictest5603-21sed11:40:190
1341699526,17cyclictest5603-21sed11:40:190
1341699524,10cyclictest12989-21cstates08:35:130
1341699523,16cyclictest0-21swapper/008:55:180
1341699523,15cyclictest0-21swapper/008:30:240
60272510,2sleep30-21swapper/311:40:233
60272510,2sleep30-21swapper/311:40:233
1342399518,7cyclictest33-21ksoftirqd/209:35:252
13423995121,5cyclictest33-21ksoftirqd/210:15:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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