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2026-04-10 - 14:24
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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 Apr 10, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299422213179,22sleep20-21swapper/219:08:512
299422213179,22sleep20-21swapper/219:08:512
139491206173,22phc2sys0-21swapper/319:05:483
139491206173,22phc2sys0-21swapper/319:05:473
300022202169,22sleep00-21swapper/019:09:370
300022202169,22sleep00-21swapper/019:09:370
296992200166,22sleep10-21swapper/119:05:481
296992200166,22sleep10-21swapper/119:05:471
499321310,4sleep23032599cyclictest20:30:212
92832670,4sleep341-21ksoftirqd/321:45:243
30324996221,4cyclictest25-21ksoftirqd/119:50:231
30324996127,8cyclictest25-21ksoftirqd/120:40:001
30324996018,9cyclictest25-21ksoftirqd/123:05:131
30324995720,8cyclictest25-21ksoftirqd/121:35:141
30324995616,10cyclictest25-21ksoftirqd/120:50:001
30324995518,8cyclictest25-21ksoftirqd/100:35:241
30324995421,11cyclictest25-21ksoftirqd/121:40:191
30324995421,10cyclictest25-21ksoftirqd/100:00:191
315742530,2sleep00-21swapper/023:40:220
30324995315,7cyclictest25-21ksoftirqd/120:25:161
39242520,4sleep1231rcuc/122:43:181
30324995225,4cyclictest25-21ksoftirqd/123:50:281
30324995220,4cyclictest25-21ksoftirqd/120:15:261
30324995219,4cyclictest25-21ksoftirqd/121:55:281
30324995218,8cyclictest25-21ksoftirqd/120:55:251
30324995217,4cyclictest25-21ksoftirqd/121:10:211
30324995121,8cyclictest25-21ksoftirqd/100:10:231
30324995121,4cyclictest25-21ksoftirqd/119:55:191
30324995121,3cyclictest25-21ksoftirqd/121:30:141
30324995120,4cyclictest25-21ksoftirqd/123:45:141
30324995120,4cyclictest25-21ksoftirqd/121:05:181
30324995120,4cyclictest25-21ksoftirqd/100:00:001
30324995119,4cyclictest25-21ksoftirqd/122:30:191
30324995118,4cyclictest25-21ksoftirqd/120:00:191
30324995117,5cyclictest25-21ksoftirqd/119:35:271
30324995115,4cyclictest25-21ksoftirqd/123:30:221
3032499511,3cyclictest25-21ksoftirqd/119:30:281
139391510,1ptp4l401ktimersoftd/322:00:003
139391510,1ptp4l391rcuc/322:00:353
3032499507,3cyclictest25-21ksoftirqd/122:55:211
30324995021,4cyclictest25-21ksoftirqd/100:30:001
30324995021,3cyclictest25-21ksoftirqd/122:55:001
30324995020,4cyclictest25-21ksoftirqd/120:40:231
30324995019,4cyclictest25-21ksoftirqd/121:50:221
30324995018,4cyclictest25-21ksoftirqd/121:20:171
30324995017,4cyclictest25-21ksoftirqd/120:10:001
30324995017,4cyclictest25-21ksoftirqd/120:10:001
30324995015,11cyclictest25-21ksoftirqd/119:10:161
30324994919,4cyclictest25-21ksoftirqd/123:25:141
30324994916,5cyclictest25-21ksoftirqd/119:40:131
30324994916,4cyclictest25-21ksoftirqd/100:20:151
30324994915,7cyclictest25-21ksoftirqd/123:05:001
30324994915,7cyclictest25-21ksoftirqd/123:05:001
30324994913,4cyclictest25-21ksoftirqd/123:40:191
142252490,1sleep00-21swapper/020:50:180
30326994843,3cyclictest14380-21cron19:45:013
30324994817,8cyclictest25-21ksoftirqd/100:30:191
30324994816,8cyclictest25-21ksoftirqd/122:35:251
139391480,1ptp4l391rcuc/300:15:373
3032499479,7cyclictest25-21ksoftirqd/121:15:221
3032499476,3cyclictest25-21ksoftirqd/122:15:271
30324994718,9cyclictest25-21ksoftirqd/121:00:251
30324994716,8cyclictest25-21ksoftirqd/123:20:201
30324994714,3cyclictest25-21ksoftirqd/122:08:511
3032599461,42cyclictest7255-21cron19:30:002
3032499468,7cyclictest25-21ksoftirqd/122:45:251
3032499465,2cyclictest25-21ksoftirqd/122:20:191
3032499464,3cyclictest25-21ksoftirqd/122:00:261
30324994621,7cyclictest25-21ksoftirqd/123:35:191
30324994616,4cyclictest25-21ksoftirqd/119:20:181
30324994614,4cyclictest25-21ksoftirqd/119:15:251
30325994521,8cyclictest33-21ksoftirqd/220:40:172
30324994539,3cyclictest25-21ksoftirqd/100:20:011
30324994535,3cyclictest25-21ksoftirqd/120:30:181
30324994532,3cyclictest25-21ksoftirqd/121:46:131
30324994511,4cyclictest25-21ksoftirqd/123:15:181
3032499444,2cyclictest25-21ksoftirqd/100:05:121
30324994435,2cyclictest25-21ksoftirqd/120:10:201
3032499443,3cyclictest25-21ksoftirqd/122:30:001
139391440,0ptp4l401ktimersoftd/323:21:493
3032499435,2cyclictest25-21ksoftirqd/119:45:271
3032499433,7cyclictest121rcu_preempt23:10:261
30324994337,3cyclictest25-21ksoftirqd/120:20:241
3032499433,2cyclictest25-21ksoftirqd/120:50:191
30324994318,4cyclictest25-21ksoftirqd/119:30:011
3032499422,7cyclictest25-21ksoftirqd/121:30:011
30324994212,3cyclictest25-21ksoftirqd/122:10:321
139391420,0ptp4l401ktimersoftd/323:30:003
30325994125,14cyclictest33-21ksoftirqd/223:35:112
30325994121,11cyclictest33-21ksoftirqd/220:10:222
30325994035,3cyclictest9157-21cpuspeed_turbos22:55:112
30325994035,3cyclictest33-21ksoftirqd/221:50:012
30325994029,9cyclictest33-21ksoftirqd/219:10:242
30323994036,2cyclictest9-21ksoftirqd/022:15:000
139391400,0ptp4l401ktimersoftd/320:25:013
30325993928,9cyclictest33-21ksoftirqd/223:45:182
30326993832,4cyclictest41-21ksoftirqd/321:05:583
30325993832,3cyclictest33-21ksoftirqd/221:15:002
3032399386,8cyclictest9-21ksoftirqd/000:10:280
30323993833,3cyclictest9-21ksoftirqd/022:40:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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