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2026-05-03 - 21:05
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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 rackdslot4.osadl.org (updated Sun May 03, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591232167,53phc2sys0-21swapper/307:06:273
291202203171,21sleep20-21swapper/207:08:562
289532201167,22sleep00-21swapper/007:06:450
289542200166,22sleep10-21swapper/107:06:461
1873521600,3sleep02950699cyclictest07:50:250
29507996623,4cyclictest25-21ksoftirqd/110:55:251
29507996524,10cyclictest25-21ksoftirqd/109:13:031
29506996520,8cyclictest9-21ksoftirqd/011:20:120
29507996420,4cyclictest25-21ksoftirqd/107:55:191
29506996432,4cyclictest9-21ksoftirqd/007:35:000
29507996328,3cyclictest25-21ksoftirqd/107:40:221
29506996333,6cyclictest9-21ksoftirqd/009:15:160
138491630,1ptp4l401ktimersoftd/309:24:103
29507996229,3cyclictest25-21ksoftirqd/109:40:001
29506996229,4cyclictest9-21ksoftirqd/012:20:220
29507996124,4cyclictest25-21ksoftirqd/109:30:151
29506996130,4cyclictest9-21ksoftirqd/008:25:270
29506996129,5cyclictest9-21ksoftirqd/007:20:000
29506996129,4cyclictest9-21ksoftirqd/009:25:160
151742610,4sleep30-21swapper/312:05:193
29507996029,3cyclictest25-21ksoftirqd/109:05:161
29507996028,6cyclictest25-21ksoftirqd/112:30:121
29507996028,4cyclictest25-21ksoftirqd/108:15:191
29507996028,4cyclictest25-21ksoftirqd/107:50:121
29507996024,5cyclictest25-21ksoftirqd/109:25:261
29507996024,4cyclictest25-21ksoftirqd/111:40:251
29507996022,4cyclictest25-21ksoftirqd/112:25:181
29506996028,10cyclictest9-21ksoftirqd/011:20:010
29507995929,3cyclictest25-21ksoftirqd/108:30:141
29507995927,6cyclictest25-21ksoftirqd/109:50:181
29507995927,6cyclictest25-21ksoftirqd/108:40:121
29507995924,4cyclictest25-21ksoftirqd/110:45:181
29506995929,4cyclictest9-21ksoftirqd/012:00:000
29506995929,4cyclictest9-21ksoftirqd/008:50:190
29506995929,4cyclictest9-21ksoftirqd/008:50:190
29506995928,4cyclictest9-21ksoftirqd/008:55:190
29506995928,3cyclictest9-21ksoftirqd/010:30:140
29506995927,4cyclictest9-21ksoftirqd/010:25:180
29506995927,4cyclictest9-21ksoftirqd/010:25:180
29506995926,4cyclictest9-21ksoftirqd/012:15:230
29506995923,10cyclictest9-21ksoftirqd/010:35:270
29507995828,4cyclictest25-21ksoftirqd/110:25:011
29507995827,4cyclictest25-21ksoftirqd/109:20:211
29507995826,4cyclictest25-21ksoftirqd/111:30:151
29507995823,3cyclictest25-21ksoftirqd/110:15:241
29506995832,8cyclictest9-21ksoftirqd/009:50:250
29506995831,6cyclictest9-21ksoftirqd/012:00:140
29506995827,9cyclictest9-21ksoftirqd/007:10:130
29507995725,4cyclictest25-21ksoftirqd/111:45:261
29507995724,3cyclictest25-21ksoftirqd/108:15:001
29507995723,3cyclictest25-21ksoftirqd/111:20:121
29507995722,4cyclictest25-21ksoftirqd/111:05:171
29506995730,9cyclictest9-21ksoftirqd/007:20:130
29506995728,4cyclictest9-21ksoftirqd/008:05:140
29506995727,8cyclictest9-21ksoftirqd/008:30:270
29506995724,4cyclictest9-21ksoftirqd/008:35:160
29506995723,5cyclictest9-21ksoftirqd/011:00:010
29506995723,3cyclictest9-21ksoftirqd/009:00:130
29506995720,2cyclictest121rcu_preempt12:10:200
29508995618,10cyclictest33-21ksoftirqd/207:50:182
29507995630,3cyclictest25-21ksoftirqd/112:20:221
29507995628,3cyclictest25-21ksoftirqd/108:35:161
29507995626,4cyclictest25-21ksoftirqd/107:30:291
29507995618,7cyclictest25-21ksoftirqd/111:35:151
29506995626,4cyclictest9-21ksoftirqd/011:30:180
29506995626,4cyclictest9-21ksoftirqd/009:30:190
29506995625,9cyclictest9-21ksoftirqd/008:00:110
29506995623,4cyclictest9-21ksoftirqd/012:25:260
135191560,7getstats2950999cyclictest10:07:433
29508995517,11cyclictest33-21ksoftirqd/207:35:012
29508995517,11cyclictest33-21ksoftirqd/207:35:002
29507995523,4cyclictest25-21ksoftirqd/112:05:161
29507995520,3cyclictest25-21ksoftirqd/107:50:001
29506995527,4cyclictest9-21ksoftirqd/009:55:270
29506995525,6cyclictest9-21ksoftirqd/009:05:370
29506995520,10cyclictest9-21ksoftirqd/009:12:250
138491550,1ptp4l401ktimersoftd/312:25:213
138491550,1ptp4l401ktimersoftd/312:10:263
29507995424,4cyclictest25-21ksoftirqd/107:35:181
29507995424,4cyclictest25-21ksoftirqd/107:35:181
29507995424,3cyclictest25-21ksoftirqd/108:45:141
29507995422,3cyclictest25-21ksoftirqd/109:40:131
29507995422,10cyclictest25-21ksoftirqd/110:40:131
29507995420,3cyclictest25-21ksoftirqd/111:10:191
29507995416,8cyclictest25-21ksoftirqd/110:30:271
29507995415,7cyclictest25-21ksoftirqd/108:00:231
29506995427,4cyclictest9-21ksoftirqd/007:25:220
29506995426,4cyclictest9-21ksoftirqd/010:10:180
29506995426,4cyclictest9-21ksoftirqd/009:35:240
29507995328,4cyclictest25-21ksoftirqd/109:55:241
29507995325,3cyclictest25-21ksoftirqd/108:20:261
29507995325,3cyclictest25-21ksoftirqd/108:20:261
29507995320,4cyclictest25-21ksoftirqd/108:25:251
29506995325,3cyclictest9-21ksoftirqd/008:15:160
29506995318,7cyclictest9-21ksoftirqd/007:50:010
29508995214,20cyclictest33-21ksoftirqd/208:02:332
29507995227,4cyclictest25-21ksoftirqd/110:50:121
29506995218,4cyclictest9-21ksoftirqd/008:40:250
205102520,2sleep10-21swapper/109:00:191
135191520,2getstats0-21swapper/310:12:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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