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2026-04-12 - 04:04
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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 Sun Apr 12, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491233164,23phc2sys0-21swapper/319:09:563
304662231167,22sleep00-21swapper/019:09:130
303222229165,21sleep10-21swapper/119:07:211
301912204171,22sleep20-21swapper/219:05:462
305282163124,13sleep30-21swapper/319:10:003
89002780,5sleep09-21ksoftirqd/021:45:170
139391710,1ptp4l401ktimersoftd/300:30:213
30352640,3sleep13039-21irqrtprio22:40:181
139391640,2ptp4l0-21swapper/322:25:253
27722620,2sleep20-21swapper/221:30:272
139391580,1ptp4l401ktimersoftd/300:25:173
139391580,1ptp4l401ktimersoftd/300:25:173
30822995724,5cyclictest33-21ksoftirqd/223:20:242
14852560,2sleep00-21swapper/019:15:150
30822995522,7cyclictest33-21ksoftirqd/221:10:252
30822995423,4cyclictest33-21ksoftirqd/223:00:162
139391540,1ptp4l401ktimersoftd/321:45:173
30822995322,3cyclictest33-21ksoftirqd/200:25:272
30822995322,3cyclictest33-21ksoftirqd/200:25:272
30822995220,4cyclictest33-21ksoftirqd/220:55:192
30822995118,6cyclictest33-21ksoftirqd/223:40:002
30822995022,4cyclictest33-21ksoftirqd/219:50:132
30822995022,3cyclictest33-21ksoftirqd/223:30:152
30822995018,8cyclictest33-21ksoftirqd/223:15:012
30822994918,4cyclictest33-21ksoftirqd/200:05:262
225142490,2sleep20-21swapper/222:15:002
30822994813,4cyclictest33-21ksoftirqd/222:05:242
30822994813,4cyclictest33-21ksoftirqd/220:20:242
30822994719,6cyclictest33-21ksoftirqd/221:55:242
30822994717,4cyclictest33-21ksoftirqd/200:34:552
30820994729,7cyclictest9-21ksoftirqd/023:55:200
30822994627,6cyclictest33-21ksoftirqd/222:40:002
30822994627,6cyclictest33-21ksoftirqd/222:40:002
30822994617,3cyclictest33-21ksoftirqd/222:15:202
30822994616,4cyclictest33-21ksoftirqd/222:00:202
30822994612,9cyclictest33-21ksoftirqd/222:50:142
30822994515,7cyclictest33-21ksoftirqd/219:30:122
30822994514,7cyclictest33-21ksoftirqd/200:00:282
30822994511,8cyclictest33-21ksoftirqd/221:40:242
30822994510,4cyclictest33-21ksoftirqd/220:15:172
30822994433,9cyclictest33-21ksoftirqd/222:55:242
30822994426,4cyclictest33-21ksoftirqd/222:25:252
30822994410,4cyclictest33-21ksoftirqd/222:45:192
30820994413,9cyclictest9-21ksoftirqd/022:50:200
139391440,0ptp4l401ktimersoftd/323:05:243
3082299439,9cyclictest33-21ksoftirqd/219:45:252
3082299438,6cyclictest33-21ksoftirqd/221:00:142
3082299437,4cyclictest33-21ksoftirqd/219:35:242
3082299433,3cyclictest121rcu_preempt21:10:002
30822994324,8cyclictest33-21ksoftirqd/219:20:172
30822994315,7cyclictest33-21ksoftirqd/220:09:542
3082299431,3cyclictest33-21ksoftirqd/222:40:212
30822994313,7cyclictest33-21ksoftirqd/219:25:182
3082099434,3cyclictest9-21ksoftirqd/023:00:200
3082099433,5cyclictest9-21ksoftirqd/021:50:150
139391430,0ptp4l401ktimersoftd/323:04:373
3082299427,4cyclictest33-21ksoftirqd/221:26:532
30822994237,2cyclictest321ktimersoftd/221:45:172
30822994226,5cyclictest33-21ksoftirqd/220:35:002
30822994212,7cyclictest33-21ksoftirqd/223:15:142
3082099426,2cyclictest9-21ksoftirqd/023:25:270
3082099425,2cyclictest9-21ksoftirqd/023:10:250
3082099425,2cyclictest9-21ksoftirqd/022:20:190
30820994237,3cyclictest18590-21cron21:00:000
3082299418,4cyclictest33-21ksoftirqd/219:40:182
3082099419,3cyclictest9-21ksoftirqd/000:05:000
3082099417,6cyclictest9-21ksoftirqd/000:20:150
3082099416,3cyclictest9-21ksoftirqd/022:40:210
3082099416,3cyclictest9-21ksoftirqd/020:30:270
3082099416,2cyclictest9-21ksoftirqd/023:20:150
3082099414,2cyclictest121rcu_preempt23:35:240
3082099412,7cyclictest9-21ksoftirqd/022:55:210
3082099411,6cyclictest9-21ksoftirqd/021:20:230
30820994111,4cyclictest9-21ksoftirqd/021:30:000
30822994035,3cyclictest33-21ksoftirqd/200:40:002
30822994026,4cyclictest33-21ksoftirqd/223:50:192
30822994012,6cyclictest33-21ksoftirqd/220:40:002
30822994012,6cyclictest33-21ksoftirqd/220:40:002
3082099407,6cyclictest9-21ksoftirqd/000:30:240
3082099406,2cyclictest9-21ksoftirqd/021:30:170
3082099404,3cyclictest9-21ksoftirqd/021:10:230
3082099404,3cyclictest121rcu_preempt23:40:240
3082099404,2cyclictest121rcu_preempt23:45:160
3082099403,3cyclictest9-21ksoftirqd/019:45:170
3082099401,6cyclictest9-21ksoftirqd/019:30:220
30820994013,7cyclictest9-21ksoftirqd/022:10:270
30820994012,4cyclictest9-21ksoftirqd/020:20:160
3082099400,2cyclictest121rcu_preempt21:05:000
14222400,3sleep31427-21fschecks_time23:45:153
3082299398,5cyclictest33-21ksoftirqd/220:40:142
3082299398,5cyclictest33-21ksoftirqd/220:40:142
30822993934,2cyclictest33-21ksoftirqd/221:40:012
3082299393,3cyclictest121rcu_preempt21:15:272
30822993924,4cyclictest33-21ksoftirqd/200:10:172
30822993923,4cyclictest33-21ksoftirqd/219:15:012
3082299391,3cyclictest121rcu_preempt23:45:002
3082299391,3cyclictest121rcu_preempt00:00:002
3082099397,9cyclictest9-21ksoftirqd/022:29:390
3082099397,5cyclictest9-21ksoftirqd/022:30:230
3082099396,3cyclictest9-21ksoftirqd/019:40:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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