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2025-12-10 - 14:33
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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 50 highest latencies:
System rackdslot3.osadl.org (updated Wed Dec 10, 2025 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270372208141,22sleep10-21swapper/119:08:201
137191204169,23phc2sys0-21swapper/319:06:023
268352202169,22sleep20-21swapper/219:05:522
268382201167,23sleep00-21swapper/019:05:540
136991810,1ptp4l391rcuc/320:15:333
136991810,1ptp4l391rcuc/320:15:323
27459997532,6cyclictest25-21ksoftirqd/123:20:001
272312660,3sleep10-21swapper/120:15:231
272312660,3sleep10-21swapper/120:15:231
27459996525,4cyclictest25-21ksoftirqd/121:50:271
27459996419,6cyclictest25-21ksoftirqd/122:14:591
27459996328,4cyclictest25-21ksoftirqd/121:30:011
27459996324,7cyclictest25-21ksoftirqd/120:00:161
27459996128,7cyclictest25-21ksoftirqd/122:20:241
27458996131,4cyclictest9-21ksoftirqd/000:30:140
27459996027,10cyclictest25-21ksoftirqd/100:25:021
27459996025,7cyclictest25-21ksoftirqd/123:20:271
27459996025,7cyclictest25-21ksoftirqd/123:20:261
27459996024,6cyclictest25-21ksoftirqd/120:55:001
27459996021,7cyclictest25-21ksoftirqd/122:00:181
27461995910,11cyclictest13843-21sed20:55:213
27459995927,6cyclictest25-21ksoftirqd/122:55:281
27459995927,4cyclictest25-21ksoftirqd/119:35:141
27459995925,6cyclictest25-21ksoftirqd/100:15:001
27458995928,4cyclictest9-21ksoftirqd/020:50:170
27459995821,7cyclictest25-21ksoftirqd/120:40:251
258932580,3sleep30-21swapper/322:25:273
27461995710,11cyclictest32057-21sed20:25:223
27459995726,4cyclictest25-21ksoftirqd/119:30:191
27459995725,4cyclictest25-21ksoftirqd/123:44:591
27459995720,9cyclictest25-21ksoftirqd/123:54:411
27459995720,9cyclictest25-21ksoftirqd/123:54:401
27459995720,7cyclictest25-21ksoftirqd/121:10:001
27458995728,3cyclictest9-21ksoftirqd/020:00:250
27458995727,4cyclictest9-21ksoftirqd/022:45:160
27459995628,9cyclictest25-21ksoftirqd/123:30:221
27459995628,3cyclictest25-21ksoftirqd/121:55:281
27459995627,8cyclictest25-21ksoftirqd/120:10:301
27459995626,3cyclictest25-21ksoftirqd/100:35:201
27459995618,9cyclictest25-21ksoftirqd/120:05:501
27458995628,4cyclictest9-21ksoftirqd/021:45:150
27458995627,4cyclictest9-21ksoftirqd/000:20:170
27458995624,4cyclictest9-21ksoftirqd/019:20:230
27459995525,9cyclictest25-21ksoftirqd/122:05:151
27459995525,4cyclictest25-21ksoftirqd/119:45:191
27459995524,9cyclictest25-21ksoftirqd/121:30:211
27459995522,4cyclictest25-21ksoftirqd/122:50:011
27459995520,4cyclictest25-21ksoftirqd/122:53:281
27459995516,9cyclictest25-21ksoftirqd/121:40:261
27458995526,3cyclictest9-21ksoftirqd/019:10:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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