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2026-05-03 - 13:45
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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 May 03, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491236168,23phc2sys0-21swapper/319:06:563
88382229164,21sleep20-21swapper/219:06:472
87922208174,23sleep10-21swapper/119:06:091
87912202169,22sleep00-21swapper/019:06:080
3117621450,6sleep0938999cyclictest00:25:010
9389996331,4cyclictest9-21ksoftirqd/021:20:180
9390996234,4cyclictest25-21ksoftirqd/120:45:231
139391620,1ptp4l401ktimersoftd/320:12:383
139391620,1ptp4l401ktimersoftd/320:12:383
9389996125,3cyclictest9-21ksoftirqd/021:25:190
9389996125,3cyclictest9-21ksoftirqd/021:25:190
9389996122,5cyclictest9-21ksoftirqd/021:55:150
9389996028,5cyclictest9-21ksoftirqd/022:40:180
9390995937,3cyclictest25-21ksoftirqd/122:00:231
9390995925,6cyclictest25-21ksoftirqd/121:24:591
9390995923,4cyclictest25-21ksoftirqd/100:05:001
9390995918,8cyclictest25-21ksoftirqd/122:45:141
9389995932,4cyclictest9-21ksoftirqd/022:45:200
9389995929,4cyclictest9-21ksoftirqd/020:45:170
9389995924,4cyclictest9-21ksoftirqd/021:05:240
139391590,8ptp4l401ktimersoftd/322:05:243
9390995829,3cyclictest25-21ksoftirqd/100:30:141
9390995826,3cyclictest25-21ksoftirqd/123:35:001
9390995822,10cyclictest25-21ksoftirqd/123:15:251
9390995821,7cyclictest25-21ksoftirqd/122:55:221
9390995821,7cyclictest25-21ksoftirqd/122:55:221
9390995819,10cyclictest25-21ksoftirqd/119:15:271
9389995833,3cyclictest9-21ksoftirqd/023:15:230
9389995830,4cyclictest9-21ksoftirqd/000:15:150
9389995813,4cyclictest9-21ksoftirqd/022:55:240
9389995813,4cyclictest9-21ksoftirqd/022:55:240
9390995729,4cyclictest25-21ksoftirqd/123:20:111
9390995717,9cyclictest25-21ksoftirqd/120:55:271
9389995731,3cyclictest9-21ksoftirqd/000:35:260
9389995729,4cyclictest9-21ksoftirqd/022:30:170
9389995728,4cyclictest9-21ksoftirqd/022:10:240
9390995627,7cyclictest25-21ksoftirqd/121:10:171
9390995621,8cyclictest25-21ksoftirqd/120:15:211
9390995619,10cyclictest25-21ksoftirqd/100:15:161
9389995629,4cyclictest9-21ksoftirqd/023:05:250
9389995629,4cyclictest9-21ksoftirqd/020:00:210
9389995625,4cyclictest9-21ksoftirqd/021:50:150
9389995624,3cyclictest9-21ksoftirqd/023:40:180
9389995623,4cyclictest9-21ksoftirqd/020:35:140
198772560,3sleep119881-21latency21:45:191
9390995521,8cyclictest25-21ksoftirqd/121:55:241
9389995529,3cyclictest9-21ksoftirqd/023:55:150
9389995529,3cyclictest9-21ksoftirqd/021:00:280
9389995528,4cyclictest9-21ksoftirqd/021:10:160
9389995527,4cyclictest9-21ksoftirqd/000:00:140
9389995525,3cyclictest9-21ksoftirqd/021:40:250
9389995524,7cyclictest9-21ksoftirqd/021:30:260
9389995523,4cyclictest9-21ksoftirqd/020:25:130
9389995522,8cyclictest9-21ksoftirqd/023:35:160
139391550,0ptp4l401ktimersoftd/320:01:503
939199546,5cyclictest14156-21awk20:25:192
9390995423,10cyclictest25-21ksoftirqd/121:50:261
9390995420,8cyclictest25-21ksoftirqd/120:50:211
9390995416,10cyclictest25-21ksoftirqd/120:10:211
9390995416,10cyclictest25-21ksoftirqd/120:10:211
9389995425,4cyclictest9-21ksoftirqd/022:15:250
9389995425,3cyclictest9-21ksoftirqd/022:50:240
939199531,50cyclictest26707-21kworker/2:222:05:252
9390995331,3cyclictest25-21ksoftirqd/120:00:121
9389995327,4cyclictest9-21ksoftirqd/023:00:140
9389995326,4cyclictest9-21ksoftirqd/023:25:160
9389995323,3cyclictest9-21ksoftirqd/021:45:170
139391530,1ptp4l401ktimersoftd/322:58:493
139391530,1ptp4l401ktimersoftd/322:58:493
939199526,7cyclictest11399-21cut22:35:182
939199525,7cyclictest10432-21date22:35:012
9389995227,3cyclictest9-21ksoftirqd/019:45:180
9389995224,5cyclictest9-21ksoftirqd/020:50:150
9389995221,4cyclictest9-21ksoftirqd/019:50:240
9389995218,7cyclictest9-21ksoftirqd/022:30:010
170252520,2sleep20-21swapper/223:55:182
939199518,8cyclictest26301-21cat22:00:142
939199516,6cyclictest16501-21test21:40:012
9390995130,8cyclictest25-21ksoftirqd/121:15:191
9390995120,9cyclictest25-21ksoftirqd/120:25:211
9390995119,9cyclictest25-21ksoftirqd/121:25:121
9390995119,9cyclictest25-21ksoftirqd/121:25:121
9390995118,6cyclictest25-21ksoftirqd/123:00:201
9389995124,8cyclictest9-21ksoftirqd/023:20:120
9389995124,4cyclictest9-21ksoftirqd/019:20:260
9389995123,4cyclictest9-21ksoftirqd/023:50:190
9389995113,9cyclictest9-21ksoftirqd/023:45:020
939199506,7cyclictest20414-21sed19:30:252
9390995028,10cyclictest25-21ksoftirqd/119:35:011
9390995023,3cyclictest25-21ksoftirqd/119:44:411
9389995031,10cyclictest9-21ksoftirqd/021:20:000
9389995020,3cyclictest9-21ksoftirqd/020:15:120
939199491,6cyclictest0-21swapper/220:04:592
939199490,11cyclictest11554-21latency_hist19:15:002
9390994936,3cyclictest25-21ksoftirqd/122:05:211
9389994922,3cyclictest9-21ksoftirqd/000:30:190
9389994922,3cyclictest9-21ksoftirqd/000:05:200
9389994915,5cyclictest9-21ksoftirqd/019:45:000
939299482,44cyclictest27832-21kworker/3:223:17:343
939199486,6cyclictest14047-21cat21:35:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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