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2026-08-22 - 01:31
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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 rackdslot4.osadl.org (updated Fri Aug 21, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311252205172,22sleep20-21swapper/207:07:452
311212203168,23sleep30-21swapper/307:07:423
310462203170,22sleep10-21swapper/107:06:441
309582203169,23sleep00-21swapper/007:05:340
1882121730,3sleep03160099cyclictest10:00:000
2448421650,6sleep33160399cyclictest09:05:153
153572780,25sleep341-21ksoftirqd/312:00:233
307192550,5sleep030723-21head10:20:260
3160299524,13cyclictest224912cut12:15:172
79462500,2sleep1241ktimersoftd/109:35:221
138491470,2ptp4l0-21swapper/310:50:123
138491430,35ptp4l0-21swapper/307:10:003
3160199422,38cyclictest1303-21runrttasks10:49:231
138491420,0ptp4l401ktimersoftd/312:13:173
138491420,0ptp4l401ktimersoftd/310:26:043
138491410,1ptp4l401ktimersoftd/311:48:323
138491410,0ptp4l401ktimersoftd/311:28:513
138491410,0ptp4l401ktimersoftd/311:10:173
138491410,0ptp4l401ktimersoftd/309:50:113
138491410,0ptp4l401ktimersoftd/309:50:113
31603994035,3cyclictest420-21rs:main3
31601994031,7cyclictest25-21ksoftirqd/107:44:591
138491400,1ptp4l401ktimersoftd/309:40:413
138491400,0ptp4l401ktimersoftd/312:31:553
31602993932,4cyclictest33-21ksoftirqd/210:10:102
138491390,0ptp4l401ktimersoftd/310:02:093
31602993832,4cyclictest33-21ksoftirqd/210:00:002
31601993833,3cyclictest25-21ksoftirqd/109:55:011
31601993833,3cyclictest25-21ksoftirqd/109:55:001
138491380,0ptp4l401ktimersoftd/312:16:323
31602993730,4cyclictest33-21ksoftirqd/211:47:542
31602993730,4cyclictest33-21ksoftirqd/207:54:592
138491370,0ptp4l401ktimersoftd/307:45:133
31602993630,4cyclictest33-21ksoftirqd/211:09:282
31602993630,4cyclictest33-21ksoftirqd/207:32:522
31601993631,3cyclictest25-21ksoftirqd/110:41:591
31601993630,4cyclictest25-21ksoftirqd/111:49:141
31601993630,4cyclictest25-21ksoftirqd/110:07:231
31601993630,4cyclictest25-21ksoftirqd/108:56:481
31601993630,4cyclictest25-21ksoftirqd/108:00:311
31600993630,4cyclictest9-21ksoftirqd/012:15:040
31600993630,4cyclictest9-21ksoftirqd/011:56:470
31600993630,4cyclictest9-21ksoftirqd/011:17:040
31600993630,4cyclictest9-21ksoftirqd/010:36:150
31600993630,4cyclictest9-21ksoftirqd/008:41:380
31600993630,4cyclictest9-21ksoftirqd/008:32:280
31600993630,4cyclictest9-21ksoftirqd/008:32:270
31600993622,5cyclictest9-21ksoftirqd/012:39:470
31603993530,3cyclictest6482-21cron07:25:003
31603993530,3cyclictest6482-21cron07:25:003
31603993530,3cyclictest41-21ksoftirqd/307:50:263
31603993529,4cyclictest41-21ksoftirqd/310:14:373
31603993529,4cyclictest41-21ksoftirqd/309:26:183
31603993529,4cyclictest41-21ksoftirqd/308:50:443
31603993528,5cyclictest41-21ksoftirqd/311:05:063
31602993529,4cyclictest33-21ksoftirqd/212:04:272
31602993529,4cyclictest33-21ksoftirqd/211:43:252
31602993529,4cyclictest33-21ksoftirqd/211:37:192
31602993529,4cyclictest33-21ksoftirqd/210:56:482
31602993529,4cyclictest33-21ksoftirqd/210:41:302
31602993529,4cyclictest33-21ksoftirqd/210:16:392
31602993529,4cyclictest33-21ksoftirqd/209:50:402
31602993529,4cyclictest33-21ksoftirqd/209:50:402
31602993529,4cyclictest33-21ksoftirqd/208:59:532
31602993529,4cyclictest33-21ksoftirqd/207:25:012
31601993529,4cyclictest25-21ksoftirqd/112:22:431
31601993529,4cyclictest25-21ksoftirqd/111:36:501
31601993529,4cyclictest25-21ksoftirqd/111:17:401
31601993529,4cyclictest25-21ksoftirqd/111:07:371
31601993529,4cyclictest25-21ksoftirqd/109:58:301
31601993529,4cyclictest25-21ksoftirqd/109:45:411
31601993529,4cyclictest25-21ksoftirqd/107:16:371
31600993531,3cyclictest9-21ksoftirqd/011:10:560
31600993530,3cyclictest9-21ksoftirqd/010:10:110
31600993530,3cyclictest9-21ksoftirqd/008:00:180
31600993529,4cyclictest9-21ksoftirqd/011:38:250
31600993529,4cyclictest9-21ksoftirqd/010:33:310
31600993529,4cyclictest9-21ksoftirqd/010:33:300
31600993529,4cyclictest9-21ksoftirqd/010:04:050
31600993529,4cyclictest9-21ksoftirqd/007:22:230
31600993529,4cyclictest9-21ksoftirqd/007:22:230
31603993429,3cyclictest41-21ksoftirqd/308:24:143
31603993428,4cyclictest41-21ksoftirqd/312:07:333
31603993428,4cyclictest41-21ksoftirqd/311:59:473
31603993428,4cyclictest41-21ksoftirqd/311:41:583
31603993428,4cyclictest41-21ksoftirqd/310:33:493
31603993428,4cyclictest41-21ksoftirqd/310:33:493
31603993428,4cyclictest41-21ksoftirqd/308:56:093
31603993427,5cyclictest41-21ksoftirqd/307:15:433
31602993428,4cyclictest33-21ksoftirqd/212:11:252
31602993428,4cyclictest33-21ksoftirqd/209:26:122
31602993428,4cyclictest33-21ksoftirqd/209:11:132
31602993428,4cyclictest33-21ksoftirqd/208:48:062
31602993428,4cyclictest33-21ksoftirqd/208:21:332
31602993428,4cyclictest33-21ksoftirqd/208:10:392
31602993428,4cyclictest33-21ksoftirqd/207:20:362
31602993428,4cyclictest33-21ksoftirqd/207:20:352
31602993427,4cyclictest33-21ksoftirqd/210:07:092
31602993427,4cyclictest33-21ksoftirqd/207:45:522
3160299340,2cyclictest0-21swapper/211:18:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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