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2026-07-08 - 22:31
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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 Jul 08, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13222208175,21sleep10-21swapper/107:05:461
139491205171,23phc2sys0-21swapper/307:08:303
14602204171,22sleep20-21swapper/207:07:232
319382201168,22sleep00-21swapper/007:05:040
16752163125,13sleep20-21swapper/207:10:012
139491163124,13phc2sys0-21swapper/307:10:013
2605921530,7sleep1196899cyclictest10:15:001
1969997116,53cyclictest1559-21kworker/2:112:30:132
196999702,65cyclictest11027-21kworker/2:108:10:332
287472650,6sleep2196999cyclictest12:35:132
240642630,2sleep20-21swapper/212:25:152
139391610,1ptp4l401ktimersoftd/307:55:183
156332550,2sleep10-21swapper/111:00:131
142302550,2sleep20-21swapper/210:55:252
139391550,1ptp4l401ktimersoftd/311:02:173
196999491,45cyclictest0-21swapper/211:50:232
1969994617,27cyclictest0-21swapper/207:30:232
196899464,9cyclictest25-21ksoftirqd/112:20:261
196899455,3cyclictest25-21ksoftirqd/112:30:181
196999443,39cyclictest18545-21ls12:15:012
1967994415,3cyclictest121rcu_preempt10:13:030
1970994327,4cyclictest41-21ksoftirqd/307:35:243
196999430,2cyclictest0-21swapper/208:55:232
196799438,4cyclictest9-21ksoftirqd/008:40:000
139391430,3ptp4l16357-21ls08:45:203
139391430,0ptp4l401ktimersoftd/311:59:423
139391430,0ptp4l401ktimersoftd/308:05:113
139391430,0ptp4l401ktimersoftd/307:50:063
1969994237,3cyclictest23346-21cron12:25:012
1969994228,11cyclictest8932-21cron07:25:002
139391420,0ptp4l401ktimersoftd/310:15:513
196899419,3cyclictest25-21ksoftirqd/111:05:261
1967994135,3cyclictest9-21ksoftirqd/009:19:590
1967994135,3cyclictest9-21ksoftirqd/009:19:590
1967994134,4cyclictest8937-21idleruntime-cro07:25:000
1967994125,6cyclictest9-21ksoftirqd/009:00:250
139391410,0ptp4l401ktimersoftd/311:45:203
139391410,0ptp4l401ktimersoftd/311:45:203
139391410,0ptp4l401ktimersoftd/309:19:233
139391410,0ptp4l401ktimersoftd/309:19:233
1970994035,3cyclictest12638-21cron10:55:013
196899401,9cyclictest25-21ksoftirqd/108:30:231
196899401,4cyclictest25-21ksoftirqd/107:35:241
196899401,3cyclictest121rcu_preempt11:00:001
1967994025,5cyclictest9-21ksoftirqd/010:55:270
1967994025,5cyclictest9-21ksoftirqd/009:30:220
1967994024,5cyclictest9-21ksoftirqd/007:50:170
1967994024,5cyclictest9-21ksoftirqd/007:35:140
196799401,3cyclictest121rcu_preempt12:10:250
139391400,0ptp4l401ktimersoftd/311:20:223
196899394,3cyclictest25-21ksoftirqd/112:00:171
1968993935,2cyclictest25-21ksoftirqd/112:20:001
1968993935,2cyclictest25-21ksoftirqd/112:20:001
1968993927,4cyclictest25-21ksoftirqd/109:30:011
196899391,6cyclictest25-21ksoftirqd/111:40:001
1967993924,5cyclictest9-21ksoftirqd/012:25:130
1967993924,5cyclictest9-21ksoftirqd/010:25:270
1967993924,5cyclictest9-21ksoftirqd/008:15:160
1967993924,4cyclictest9-21ksoftirqd/011:45:150
1967993924,4cyclictest9-21ksoftirqd/011:45:150
1967993923,6cyclictest9-21ksoftirqd/011:55:220
1967993923,6cyclictest9-21ksoftirqd/009:55:240
1967993923,5cyclictest9-21ksoftirqd/011:15:230
1970993831,5cyclictest41-21ksoftirqd/310:12:183
1969993812,23cyclictest17434-21latency_hist11:05:002
1968993834,2cyclictest25-21ksoftirqd/108:49:591
196799384,3cyclictest121rcu_preempt10:20:180
1967993833,3cyclictest9-21ksoftirqd/012:00:130
1967993826,3cyclictest9-21ksoftirqd/009:20:360
1967993824,5cyclictest9-21ksoftirqd/011:25:190
1967993824,5cyclictest9-21ksoftirqd/008:50:240
1967993824,3cyclictest9-21ksoftirqd/009:45:230
1967993823,5cyclictest9-21ksoftirqd/012:35:150
1967993823,5cyclictest9-21ksoftirqd/012:30:220
1967993823,5cyclictest9-21ksoftirqd/011:50:220
1967993823,5cyclictest9-21ksoftirqd/010:50:210
1967993823,5cyclictest9-21ksoftirqd/009:35:180
1967993823,5cyclictest9-21ksoftirqd/008:40:140
1967993823,5cyclictest9-21ksoftirqd/008:30:200
1967993823,5cyclictest9-21ksoftirqd/007:55:190
1967993823,3cyclictest9-21ksoftirqd/008:05:110
1967993822,6cyclictest9-21ksoftirqd/009:25:220
1967993822,6cyclictest9-21ksoftirqd/008:10:140
1967993822,5cyclictest9-21ksoftirqd/010:45:210
1967993822,5cyclictest9-21ksoftirqd/010:45:210
1967993822,5cyclictest9-21ksoftirqd/009:40:420
1967993822,5cyclictest9-21ksoftirqd/007:40:180
1967993820,6cyclictest9-21ksoftirqd/011:02:390
197099375,6cyclictest41-21ksoftirqd/308:55:293
1970993734,2cyclictest41-21ksoftirqd/308:35:003
197099373,3cyclictest41-21ksoftirqd/311:00:003
1970993731,3cyclictest41-21ksoftirqd/310:05:003
1970993720,8cyclictest41-21ksoftirqd/310:45:243
1970993720,8cyclictest41-21ksoftirqd/310:45:243
1969993713,21cyclictest9685-21munin-node10:45:082
1969993713,21cyclictest9685-21munin-node10:45:082
196899376,3cyclictest121rcu_preempt08:20:181
196899376,3cyclictest121rcu_preempt08:00:121
1968993733,2cyclictest25-21ksoftirqd/108:30:011
1968993733,2cyclictest25-21ksoftirqd/108:00:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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