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2026-05-05 - 07:25
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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 Tue May 05, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249282226163,20sleep20-21swapper/219:09:142
139491207173,22phc2sys0-21swapper/319:07:513
248602202169,22sleep10-21swapper/119:08:211
248542200167,22sleep00-21swapper/019:08:150
3198521640,5sleep12528099cyclictest21:40:001
25279996228,4cyclictest9-21ksoftirqd/020:00:000
25280996113,11cyclictest16357-21sed23:20:181
25279996129,6cyclictest9-21ksoftirqd/019:20:280
296982600,2sleep10-21swapper/120:25:181
2528099590,18cyclictest0-21swapper/120:00:251
25279995925,5cyclictest9-21ksoftirqd/023:05:000
25279995924,5cyclictest9-21ksoftirqd/023:15:000
25279995923,8cyclictest9-21ksoftirqd/021:40:020
326652580,2sleep10-21swapper/119:25:131
25279995828,4cyclictest9-21ksoftirqd/019:30:010
25279995825,4cyclictest9-21ksoftirqd/021:35:010
25279995825,4cyclictest9-21ksoftirqd/020:35:000
25279995822,7cyclictest9-21ksoftirqd/022:15:210
25279995822,5cyclictest9-21ksoftirqd/000:40:010
25279995722,7cyclictest9-21ksoftirqd/023:20:260
25279995624,5cyclictest9-21ksoftirqd/022:10:140
25279995622,4cyclictest9-21ksoftirqd/000:10:000
25279995621,6cyclictest9-21ksoftirqd/022:35:130
25279995620,7cyclictest9-21ksoftirqd/023:50:170
25279995620,5cyclictest9-21ksoftirqd/020:20:240
25282995522,5cyclictest41-21ksoftirqd/300:15:193
2528099550,12cyclictest4801-21cat00:05:001
25279995523,4cyclictest9-21ksoftirqd/000:10:220
25279995523,4cyclictest9-21ksoftirqd/000:10:220
25279995522,6cyclictest9-21ksoftirqd/021:55:160
25279995520,8cyclictest9-21ksoftirqd/019:10:240
25279995519,7cyclictest9-21ksoftirqd/019:35:160
25279995519,6cyclictest9-21ksoftirqd/019:40:150
25279995518,8cyclictest9-21ksoftirqd/022:30:240
25279995518,7cyclictest9-21ksoftirqd/021:25:190
25279995518,7cyclictest9-21ksoftirqd/021:25:190
2528099540,17cyclictest0-21swapper/121:05:301
25279995422,3cyclictest9-21ksoftirqd/023:30:180
25279995421,8cyclictest9-21ksoftirqd/022:25:280
25279995421,6cyclictest9-21ksoftirqd/022:05:220
25279995420,6cyclictest9-21ksoftirqd/022:55:190
25279995420,6cyclictest9-21ksoftirqd/020:00:190
25279995420,5cyclictest9-21ksoftirqd/021:40:010
25279995420,10cyclictest9-21ksoftirqd/021:10:230
25279995419,7cyclictest9-21ksoftirqd/020:59:590
25279995419,6cyclictest9-21ksoftirqd/022:20:190
25279995419,4cyclictest9-21ksoftirqd/019:35:010
25279995418,6cyclictest9-21ksoftirqd/023:15:220
25279995417,9cyclictest9-21ksoftirqd/020:35:180
2528299535,7cyclictest6307-21df_abs23:00:153
2528299534,7cyclictest15297-21latency_hist21:05:013
2528099530,11cyclictest27040-21cut20:20:181
25279995320,8cyclictest9-21ksoftirqd/021:00:170
25279995320,6cyclictest9-21ksoftirqd/023:35:220
25279995320,6cyclictest9-21ksoftirqd/000:00:190
25279995320,5cyclictest9-21ksoftirqd/021:05:250
25279995320,5cyclictest9-21ksoftirqd/020:25:180
25279995320,4cyclictest9-21ksoftirqd/023:05:200
25279995318,7cyclictest9-21ksoftirqd/022:40:240
25279995318,7cyclictest9-21ksoftirqd/022:40:230
25279995318,7cyclictest9-21ksoftirqd/019:15:230
25279995318,6cyclictest9-21ksoftirqd/021:45:240
25279995318,4cyclictest9-21ksoftirqd/000:20:110
25282995215,5cyclictest41-21ksoftirqd/320:00:263
2528099523,12cyclictest28122-21irqrtprio21:30:181
2528099520,17cyclictest0-21swapper/123:09:571
2528099520,17cyclictest0-21swapper/122:35:241
2528099520,16cyclictest0-21swapper/119:22:561
2528099520,12cyclictest6188-21cstates23:00:151
25279995222,5cyclictest9-21ksoftirqd/019:45:150
25279995220,5cyclictest9-21ksoftirqd/022:50:150
25279995220,3cyclictest9-21ksoftirqd/022:00:220
25279995219,4cyclictest9-21ksoftirqd/000:25:190
25279995218,6cyclictest9-21ksoftirqd/023:45:000
25279995218,4cyclictest9-21ksoftirqd/023:50:000
25279995216,7cyclictest9-21ksoftirqd/021:15:250
25279995216,4cyclictest9-21ksoftirqd/020:40:230
2528299512,5cyclictest26900-21hostname22:35:143
25282995112,5cyclictest41-21ksoftirqd/319:10:213
2528099510,12cyclictest19839-21if_enp1s022:20:171
2528099510,12cyclictest1204-21/usr/sbin/munin20:35:181
2528099510,11cyclictest848-21cut21:40:181
2528099510,11cyclictest3602-21cat19:30:201
2528099510,11cyclictest18737-21cut23:25:201
2528099510,11cyclictest12278-21/usr/sbin/munin00:20:121
25279995120,6cyclictest9-21ksoftirqd/021:20:220
25279995120,5cyclictest9-21ksoftirqd/020:10:190
25279995119,6cyclictest9-21ksoftirqd/020:50:200
25279995119,5cyclictest9-21ksoftirqd/020:45:180
25279995118,9cyclictest9-21ksoftirqd/000:30:230
25279995118,7cyclictest9-21ksoftirqd/020:15:270
25279995117,6cyclictest9-21ksoftirqd/020:10:000
25279995116,6cyclictest9-21ksoftirqd/000:15:230
2528299506,7cyclictest16556-21sed21:05:233
2528199506,9cyclictest33-21ksoftirqd/220:35:012
2528099502,16cyclictest19235-21grep20:05:141
2528099502,14cyclictest10789-21apt-get20:55:131
2528099500,9cyclictest23659-21awk20:14:591
2528099500,17cyclictest8652-21mailstats19:40:231
2528099500,17cyclictest31199-21apt-get22:45:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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