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2026-06-13 - 15:04
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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 Sat Jun 13, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
216402204172,21sleep20-21swapper/219:08:152
215842203169,22sleep10-21swapper/119:07:311
216802202167,23sleep00-21swapper/019:08:450
214962202169,22sleep30-21swapper/319:06:243
217752163124,13sleep20-21swapper/219:10:012
990721480,6sleep02206699cyclictest19:50:210
2206999706,3cyclictest0-21swapper/319:30:273
22068996227,6cyclictest33-21ksoftirqd/222:50:002
22068996226,6cyclictest33-21ksoftirqd/220:15:012
236072610,3sleep20-21swapper/221:25:182
150192600,8sleep32206999cyclictest23:25:023
22068995926,9cyclictest33-21ksoftirqd/222:00:172
22068995922,10cyclictest33-21ksoftirqd/221:45:182
2206799598,11cyclictest26678-21latency_hist23:50:001
2206799598,10cyclictest660-21mailstats00:00:281
22068995822,10cyclictest33-21ksoftirqd/220:00:232
2206799589,10cyclictest30349-21/usr/sbin/munin20:35:161
2206799587,10cyclictest24342-21latency_hist23:45:001
2206799587,10cyclictest15421-21df_abs21:10:121
22068995726,4cyclictest33-21ksoftirqd/223:05:152
22068995725,9cyclictest33-21ksoftirqd/220:15:262
22068995721,11cyclictest33-21ksoftirqd/223:55:162
22068995721,11cyclictest33-21ksoftirqd/200:10:282
2206799579,10cyclictest20360-21if_enp4s023:35:171
22068995626,5cyclictest33-21ksoftirqd/221:30:152
22068995626,10cyclictest33-21ksoftirqd/223:30:182
22068995626,10cyclictest33-21ksoftirqd/221:15:122
22068995624,4cyclictest33-21ksoftirqd/221:00:132
22068995622,4cyclictest33-21ksoftirqd/222:30:232
2206799568,12cyclictest17639-21expr23:30:121
2206799566,10cyclictest9908-21irqrtprio22:05:171
139391560,45ptp4l0-21swapper/319:10:013
279112550,1sleep327914-21wc19:20:193
22068995523,6cyclictest33-21ksoftirqd/220:45:122
22068995523,4cyclictest33-21ksoftirqd/220:55:152
2206799558,18cyclictest18517-21date00:40:001
2206799558,17cyclictest13749-21date00:30:011
22068995423,4cyclictest33-21ksoftirqd/222:15:112
22068995422,4cyclictest33-21ksoftirqd/223:50:132
2206799547,16cyclictest18337-21grep20:10:111
2206899533,6cyclictest33-21ksoftirqd/219:20:132
2206899533,6cyclictest33-21ksoftirqd/200:25:202
2206799539,14cyclictest9054-21rt-features20:55:241
2206799536,11cyclictest24838-21df_abs19:15:131
2206899522,6cyclictest33-21ksoftirqd/222:40:002
22068995223,4cyclictest33-21ksoftirqd/223:40:132
2206899513,7cyclictest33-21ksoftirqd/219:55:162
2206799517,17cyclictest26996-21cut21:35:001
2206799516,10cyclictest11179-21latency_hist00:25:001
2206899504,8cyclictest33-21ksoftirqd/220:25:152
2206899504,5cyclictest33-21ksoftirqd/219:45:222
22067995010,8cyclictest31529-21meminfo22:50:201
2206899493,5cyclictest33-21ksoftirqd/222:55:232
2206899492,6cyclictest33-21ksoftirqd/219:50:182
2206899491,8cyclictest33-21ksoftirqd/200:20:112
2206799499,7cyclictest24305-21sshd21:26:351
2206799498,7cyclictest3906-21irqstats20:45:181
2206799497,10cyclictest20969-21cat22:30:001
2206899484,9cyclictest33-21ksoftirqd/220:40:232
2206899483,8cyclictest33-21ksoftirqd/220:30:172
2206899481,7cyclictest33-21ksoftirqd/221:40:182
2206899481,5cyclictest33-21ksoftirqd/221:05:202
22067994814,14cyclictest0-21swapper/121:01:041
22066994842,4cyclictest24226-21cron19:14:590
162652480,2sleep10-21swapper/120:05:151
2206899474,10cyclictest33-21ksoftirqd/200:00:182
2206899472,9cyclictest33-21ksoftirqd/222:05:152
2206899472,6cyclictest33-21ksoftirqd/223:35:242
2206899472,6cyclictest33-21ksoftirqd/222:20:172
2206899472,6cyclictest33-21ksoftirqd/221:35:132
2206899472,5cyclictest33-21ksoftirqd/200:15:142
22068994719,5cyclictest33-21ksoftirqd/220:35:252
22068994719,5cyclictest33-21ksoftirqd/200:35:172
2206899471,6cyclictest33-21ksoftirqd/221:50:272
2206799478,9cyclictest4867-21irqrtprio19:40:161
2206799478,8cyclictest32509-21irqstats19:30:181
2206799478,8cyclictest27294-21diskstats23:50:141
2206799478,8cyclictest15299-21python22:15:221
2206899466,5cyclictest33-21ksoftirqd/223:15:162
2206899465,7cyclictest33-21ksoftirqd/219:30:192
2206899465,7cyclictest33-21ksoftirqd/219:25:132
2206899465,6cyclictest33-21ksoftirqd/223:30:012
2206899464,10cyclictest33-21ksoftirqd/220:20:142
2206899463,9cyclictest33-21ksoftirqd/223:10:222
2206899463,5cyclictest33-21ksoftirqd/223:25:012
2206899463,11cyclictest33-21ksoftirqd/222:10:242
2206899462,9cyclictest33-21ksoftirqd/223:45:152
2206899461,5cyclictest33-21ksoftirqd/221:20:002
2206899455,6cyclictest33-21ksoftirqd/219:15:252
2206899455,5cyclictest33-21ksoftirqd/219:35:192
2206899454,7cyclictest33-21ksoftirqd/200:05:172
2206899454,6cyclictest33-21ksoftirqd/222:50:132
2206899452,5cyclictest33-21ksoftirqd/221:55:162
2206899451,5cyclictest33-21ksoftirqd/219:40:182
2206899450,7cyclictest33-21ksoftirqd/200:30:152
2206799458,7cyclictest12439-21irqstats22:10:181
2206799457,7cyclictest5642-21df20:50:131
2206799457,7cyclictest29727-21hddtemp_smartct19:25:151
2206799455,9cyclictest3188-21ls19:35:251
2206899445,7cyclictest33-21ksoftirqd/220:50:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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