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2026-04-29 - 03:14
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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 Wed Apr 29, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308542205172,22sleep10-21swapper/119:09:321
139491205171,22phc2sys0-21swapper/319:09:123
308462204170,22sleep00-21swapper/019:09:280
308502203169,23sleep20-21swapper/219:09:302
31181997932,4cyclictest9-21ksoftirqd/019:19:320
31182997426,6cyclictest25-21ksoftirqd/119:19:211
3118399714,21cyclictest13607-21cat20:45:002
3118399651,21cyclictest12314-21/usr/sbin/munin19:35:152
315222640,6sleep33118499cyclictest20:15:003
3118399648,19cyclictest6883-21cstates20:30:132
4382570,2sleep20-21swapper/223:40:152
3118399572,22cyclictest28152-21gunzip22:20:232
31183995711,19cyclictest21926-21sed21:00:202
31181995525,4cyclictest9-21ksoftirqd/020:15:000
3118399540,19cyclictest14251-21apt-config00:07:142
31181995421,3cyclictest9-21ksoftirqd/000:30:010
31182995320,9cyclictest25-21ksoftirqd/119:59:211
31181995223,4cyclictest9-21ksoftirqd/021:55:140
31182995113,9cyclictest25-21ksoftirqd/120:35:161
31182995113,9cyclictest25-21ksoftirqd/120:35:161
31182994943,3cyclictest20661-21chrt20:59:591
204572490,2sleep20-21swapper/200:20:142
3118399482,25cyclictest0-21swapper/220:54:262
31182994818,9cyclictest25-21ksoftirqd/119:20:181
31181994839,2cyclictest9-21ksoftirqd/019:51:320
81132470,2sleep00-21swapper/021:40:140
31183994712,25cyclictest16546-21seq19:41:242
130232470,2sleep30-21swapper/322:55:273
31183994640,3cyclictest22966-21sh23:20:002
3118299464,8cyclictest25-21ksoftirqd/119:40:161
3118299452,3cyclictest121rcu_preempt22:00:001
31182994517,4cyclictest25-21ksoftirqd/100:05:001
3118299450,3cyclictest121rcu_preempt00:14:591
31181994431,3cyclictest9-21ksoftirqd/000:15:000
3118199441,3cyclictest9-21ksoftirqd/023:10:000
139391440,1ptp4l401ktimersoftd/322:04:473
139391440,0ptp4l401ktimersoftd/323:30:343
31184994338,3cyclictest41-21ksoftirqd/319:19:473
3118299437,3cyclictest121rcu_preempt20:01:281
3118299436,7cyclictest25-21ksoftirqd/119:50:181
31182994324,9cyclictest25-21ksoftirqd/120:20:001
3118299431,8cyclictest25-21ksoftirqd/100:15:151
3118299430,3cyclictest121rcu_preempt21:50:011
3118299430,2cyclictest121rcu_preempt21:10:001
139391430,0ptp4l401ktimersoftd/319:25:313
3118299426,9cyclictest25-21ksoftirqd/122:50:191
3118299424,7cyclictest25-21ksoftirqd/123:20:151
3118299424,7cyclictest25-21ksoftirqd/121:10:231
31182994211,4cyclictest25-21ksoftirqd/120:25:241
3118299420,3cyclictest121rcu_preempt23:00:271
31181994229,4cyclictest9-21ksoftirqd/021:50:000
31181994229,3cyclictest9-21ksoftirqd/021:10:010
139391420,0ptp4l401ktimersoftd/320:27:583
139391420,0ptp4l401ktimersoftd/300:10:153
31183994128,4cyclictest33-21ksoftirqd/223:46:372
31183994127,12cyclictest33-21ksoftirqd/222:45:002
3118299415,7cyclictest25-21ksoftirqd/122:30:261
3118299415,7cyclictest25-21ksoftirqd/121:15:281
31182994135,3cyclictest25-21ksoftirqd/100:30:011
3118299411,3cyclictest121rcu_preempt21:00:131
31181994136,3cyclictest9-21ksoftirqd/020:00:000
31181994134,4cyclictest19818-21cron00:20:000
31181994126,4cyclictest9-21ksoftirqd/021:00:190
31181994126,4cyclictest9-21ksoftirqd/020:05:160
139391410,0ptp4l401ktimersoftd/322:25:153
31183994034,4cyclictest33-21ksoftirqd/200:15:002
3118299405,9cyclictest25-21ksoftirqd/120:20:221
3118299405,8cyclictest25-21ksoftirqd/121:25:171
3118299404,8cyclictest25-21ksoftirqd/120:45:151
3118299403,8cyclictest25-21ksoftirqd/119:35:261
31182994034,3cyclictest25-21ksoftirqd/123:10:281
31182994023,3cyclictest25-21ksoftirqd/100:10:001
3118299401,4cyclictest25-21ksoftirqd/119:10:201
31182994010,7cyclictest25-21ksoftirqd/120:30:271
3118199408,4cyclictest9-21ksoftirqd/019:25:000
31181994024,3cyclictest9-21ksoftirqd/023:45:000
139391400,0ptp4l401ktimersoftd/322:05:303
3118399391,23cyclictest616-21gdbus19:10:252
3118299396,7cyclictest25-21ksoftirqd/122:55:141
3118299394,8cyclictest25-21ksoftirqd/122:00:151
3118299394,7cyclictest25-21ksoftirqd/119:30:231
3118299393,6cyclictest25-21ksoftirqd/123:40:251
3118299391,2cyclictest121rcu_preempt20:05:171
3118299390,7cyclictest121rcu_preempt23:05:141
3118199395,3cyclictest121rcu_preempt22:25:190
31181993931,3cyclictest9-21ksoftirqd/021:35:010
31181993925,4cyclictest9-21ksoftirqd/019:45:230
31181993923,4cyclictest9-21ksoftirqd/000:30:230
3118199391,3cyclictest808-21diskstats21:25:160
139391390,0ptp4l401ktimersoftd/323:15:273
3118399386,24cyclictest13103-21sshd22:55:282
31183993834,3cyclictest33-21ksoftirqd/219:51:312
31183993824,12cyclictest7567-21cron21:40:002
3118399382,33cyclictest6100-21uname23:50:192
3118399381,3cyclictest207-21systemd-journal22:14:552
3118399381,3cyclictest207-21systemd-journal22:14:552
3118299387,6cyclictest25-21ksoftirqd/121:40:221
3118299387,3cyclictest25-21ksoftirqd/120:10:221
3118299384,3cyclictest121rcu_preempt21:50:141
3118299383,8cyclictest25-21ksoftirqd/122:25:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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