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2026-06-12 - 11:06
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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 Fri Jun 12, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278832222160,50sleep30-21swapper/319:08:383
278502202170,21sleep20-21swapper/219:08:122
277602201168,22sleep00-21swapper/019:07:010
277982200168,21sleep10-21swapper/119:07:301
174521650,1sleep00-21swapper/020:30:010
139491160123,13phc2sys0-21swapper/319:10:013
2973421340,5sleep32828499cyclictest23:40:233
2828499671,28cyclictest13501-21/usr/sbin/munin00:15:263
2828499670,24cyclictest18090-21taskset22:10:143
2828499660,22cyclictest2407-21wc21:35:273
28283996525,6cyclictest33-21ksoftirqd/221:20:132
2828499640,24cyclictest2869-21chrt23:50:263
2828499640,21cyclictest20226-21ls21:05:233
2828499640,21cyclictest20226-21ls21:05:233
28283996428,6cyclictest33-21ksoftirqd/219:20:002
28283996427,7cyclictest33-21ksoftirqd/200:30:282
2828499630,25cyclictest0-21swapper/322:40:253
2828499630,25cyclictest0-21swapper/322:40:253
28283996329,9cyclictest33-21ksoftirqd/200:04:592
28283996328,6cyclictest33-21ksoftirqd/221:00:002
108822630,2sleep20-21swapper/221:55:162
2828399626,2cyclictest33-21ksoftirqd/222:45:002
2828399626,2cyclictest33-21ksoftirqd/222:45:002
28283996231,7cyclictest33-21ksoftirqd/220:40:152
28283996230,7cyclictest33-21ksoftirqd/223:30:222
28283996228,4cyclictest33-21ksoftirqd/219:50:252
28283996225,6cyclictest33-21ksoftirqd/222:25:292
28283996225,6cyclictest33-21ksoftirqd/222:20:282
2828499616,19cyclictest14565-21cat22:00:293
2828499611,26cyclictest23019-21cut20:05:193
2828499610,21cyclictest7200-21cstates22:55:153
2828499610,19cyclictest31375-21cat22:35:263
28283996133,4cyclictest33-21ksoftirqd/221:05:132
28283996133,4cyclictest33-21ksoftirqd/221:05:132
28283996131,9cyclictest33-21ksoftirqd/223:00:142
28283996131,7cyclictest33-21ksoftirqd/200:10:232
28283996129,6cyclictest33-21ksoftirqd/221:50:002
28283996129,3cyclictest33-21ksoftirqd/220:15:152
28283996126,6cyclictest33-21ksoftirqd/222:15:002
28283996124,7cyclictest33-21ksoftirqd/220:50:152
82282600,2sleep10-21swapper/121:50:131
2828499601,21cyclictest10492-21cpuspeed_turbos21:55:123
2828499601,19cyclictest11550-21/usr/sbin/munin20:50:193
2828499600,21cyclictest30902-21sed21:30:143
28283996032,3cyclictest33-21ksoftirqd/222:55:202
28283996030,3cyclictest33-21ksoftirqd/223:25:132
28283996028,4cyclictest33-21ksoftirqd/219:20:182
28283996027,6cyclictest33-21ksoftirqd/200:15:142
28283996023,6cyclictest33-21ksoftirqd/222:45:242
2828499591,22cyclictest25059-21phc2sys23:30:223
2828499590,20cyclictest9378-21bc23:00:103
28283995932,3cyclictest33-21ksoftirqd/219:35:002
28283995929,8cyclictest33-21ksoftirqd/200:05:192
28283995928,5cyclictest33-21ksoftirqd/223:15:172
28283995928,4cyclictest33-21ksoftirqd/220:25:242
28283995927,6cyclictest33-21ksoftirqd/221:15:012
28283995927,6cyclictest33-21ksoftirqd/221:00:152
28283995927,5cyclictest33-21ksoftirqd/221:35:152
28283995927,4cyclictest33-21ksoftirqd/220:20:132
28283995925,7cyclictest33-21ksoftirqd/219:25:272
2828499580,24cyclictest3986-21awk22:45:283
2828499580,21cyclictest29474-21apt-get20:20:113
28283995828,7cyclictest33-21ksoftirqd/220:10:132
28283995828,4cyclictest33-21ksoftirqd/223:50:152
28283995828,4cyclictest33-21ksoftirqd/221:50:192
28283995828,4cyclictest33-21ksoftirqd/220:30:132
28283995827,5cyclictest33-21ksoftirqd/219:15:012
28283995826,6cyclictest33-21ksoftirqd/222:15:272
28283995825,6cyclictest33-21ksoftirqd/222:30:252
28283995825,6cyclictest33-21ksoftirqd/220:50:002
28283995825,6cyclictest33-21ksoftirqd/219:40:152
28283995824,6cyclictest33-21ksoftirqd/223:10:142
28283995824,6cyclictest33-21ksoftirqd/223:05:142
28283995824,6cyclictest33-21ksoftirqd/219:45:232
28283995824,4cyclictest33-21ksoftirqd/223:35:122
28283995824,4cyclictest33-21ksoftirqd/223:25:012
28283995823,9cyclictest33-21ksoftirqd/223:40:282
28283995823,5cyclictest33-21ksoftirqd/221:20:002
28283995819,10cyclictest33-21ksoftirqd/223:45:152
2828499570,21cyclictest25317-21grep22:25:203
2828499570,20cyclictest27765-21cat23:35:263
28283995725,6cyclictest33-21ksoftirqd/221:40:262
28283995725,6cyclictest33-21ksoftirqd/220:00:262
28283995722,4cyclictest33-21ksoftirqd/222:35:132
2828499560,26cyclictest15160-21apt-get19:50:103
2828499560,20cyclictest22277-21expr00:30:263
28283995628,3cyclictest33-21ksoftirqd/200:25:242
28283995627,4cyclictest33-21ksoftirqd/221:30:132
28283995625,7cyclictest33-21ksoftirqd/219:55:252
28283995625,7cyclictest33-21ksoftirqd/219:55:252
28283995625,5cyclictest33-21ksoftirqd/222:00:142
28283995623,6cyclictest33-21ksoftirqd/222:50:182
28283995622,6cyclictest33-21ksoftirqd/219:35:242
2828499550,21cyclictest8435-21dpkg00:05:013
2828499550,21cyclictest5017-21mailstats23:55:243
28283995525,6cyclictest33-21ksoftirqd/223:55:172
28283995522,7cyclictest33-21ksoftirqd/200:20:242
28283995521,3cyclictest33-21ksoftirqd/220:05:182
139391550,1ptp4l391rcuc/321:40:203
2828499540,19cyclictest6091-21unixbench_multi20:35:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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