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2026-04-10 - 12:01
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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 highest latencies:
System rackdslot4.osadl.org (updated Fri Apr 10, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72222205172,22sleep10-21swapper/119:08:551
72852204170,22sleep00-21swapper/019:09:410
138591204170,22phc2sys0-21swapper/319:05:043
69132201168,22sleep20-21swapper/219:05:292
868121510,1sleep10-21swapper/120:15:211
7603996832,3cyclictest33-21ksoftirqd/219:20:162
7603996127,9cyclictest33-21ksoftirqd/223:50:002
7603996120,5cyclictest33-21ksoftirqd/221:40:222
7603996120,5cyclictest33-21ksoftirqd/221:40:222
7603996117,4cyclictest33-21ksoftirqd/221:25:002
251232610,2sleep30-21swapper/321:55:163
257582600,2sleep20-21swapper/223:00:182
7604995927,4cyclictest41-21ksoftirqd/319:10:253
7603995922,4cyclictest33-21ksoftirqd/219:50:172
7603995920,4cyclictest33-21ksoftirqd/223:05:192
7603995822,4cyclictest33-21ksoftirqd/219:30:282
7603995820,4cyclictest33-21ksoftirqd/221:50:222
7603995819,4cyclictest33-21ksoftirqd/222:05:142
7603995818,8cyclictest33-21ksoftirqd/222:30:222
239442580,2sleep10-21swapper/122:55:231
202152580,2sleep30-21swapper/323:55:153
7604995727,3cyclictest41-21ksoftirqd/322:25:203
7604995716,4cyclictest41-21ksoftirqd/319:25:013
7603995728,4cyclictest33-21ksoftirqd/219:10:142
7603995620,4cyclictest33-21ksoftirqd/219:55:192
7603995620,4cyclictest33-21ksoftirqd/219:55:192
7603995619,8cyclictest33-21ksoftirqd/223:59:572
7603995619,4cyclictest33-21ksoftirqd/221:48:332
7603995615,4cyclictest33-21ksoftirqd/223:15:002
7603995524,9cyclictest33-21ksoftirqd/200:30:272
7603995516,7cyclictest33-21ksoftirqd/220:35:212
7603995516,10cyclictest33-21ksoftirqd/200:10:222
7603995516,10cyclictest33-21ksoftirqd/200:10:222
7603995513,8cyclictest33-21ksoftirqd/222:45:362
7604995424,3cyclictest41-21ksoftirqd/300:05:153
7603995417,5cyclictest33-21ksoftirqd/220:10:112
7603995417,4cyclictest33-21ksoftirqd/222:50:202
7603995416,9cyclictest33-21ksoftirqd/219:18:562
7604995325,3cyclictest41-21ksoftirqd/320:00:013
7604995325,3cyclictest41-21ksoftirqd/320:00:013
7603995324,8cyclictest33-21ksoftirqd/221:05:112
7603995317,9cyclictest33-21ksoftirqd/221:10:142
7603995317,9cyclictest33-21ksoftirqd/221:10:142
7603995314,10cyclictest33-21ksoftirqd/220:50:012
7603995310,8cyclictest33-21ksoftirqd/222:25:192
7603995221,11cyclictest33-21ksoftirqd/223:25:202
7603995211,2cyclictest33-21ksoftirqd/220:05:172
760499513,19cyclictest41-21ksoftirqd/319:55:013
760399514,6cyclictest33-21ksoftirqd/221:55:192
760399514,5cyclictest33-21ksoftirqd/220:55:142
7603995117,8cyclictest33-21ksoftirqd/220:20:182
7603995117,8cyclictest33-21ksoftirqd/220:19:552
7603995114,4cyclictest33-21ksoftirqd/223:40:362
7604995022,4cyclictest41-21ksoftirqd/322:50:143
7604995018,3cyclictest41-21ksoftirqd/322:30:253
7604995013,7cyclictest41-21ksoftirqd/320:40:013
7603995014,8cyclictest33-21ksoftirqd/223:30:122
138491500,1ptp4l401ktimersoftd/319:37:403
760399497,3cyclictest33-21ksoftirqd/223:50:242
760399496,8cyclictest33-21ksoftirqd/222:15:242
760399495,4cyclictest33-21ksoftirqd/200:25:252
760399494,7cyclictest33-21ksoftirqd/220:30:262
760399494,7cyclictest33-21ksoftirqd/220:30:262
760399494,5cyclictest33-21ksoftirqd/219:25:142
760399493,9cyclictest33-21ksoftirqd/219:40:002
7603994918,4cyclictest33-21ksoftirqd/221:27:062
7603994916,3cyclictest33-21ksoftirqd/222:42:312
7603994915,9cyclictest33-21ksoftirqd/222:03:082
7603994915,8cyclictest33-21ksoftirqd/221:01:462
7603994915,5cyclictest33-21ksoftirqd/200:04:402
7603994915,10cyclictest33-21ksoftirqd/222:57:312
7603994914,8cyclictest33-21ksoftirqd/223:20:012
7603994914,4cyclictest33-21ksoftirqd/219:45:132
7604994820,3cyclictest41-21ksoftirqd/319:30:133
7604994817,3cyclictest41-21ksoftirqd/320:20:203
760499480,4cyclictest2131-21apt-config22:15:003
760499480,4cyclictest2131-21apt-config22:15:003
760399485,9cyclictest33-21ksoftirqd/222:25:002
760399484,3cyclictest33-21ksoftirqd/220:40:192
7603994815,4cyclictest33-21ksoftirqd/220:53:372
7603994812,9cyclictest33-21ksoftirqd/221:35:232
760499472,2cyclictest121rcu_preempt00:20:003
7604994715,5cyclictest41-21ksoftirqd/300:35:113
760399476,2cyclictest33-21ksoftirqd/200:05:172
760399475,3cyclictest33-21ksoftirqd/219:40:222
760399474,6cyclictest33-21ksoftirqd/221:30:152
7603994717,4cyclictest33-21ksoftirqd/221:15:542
7603994713,9cyclictest33-21ksoftirqd/222:36:182
7604994623,3cyclictest41-21ksoftirqd/300:25:243
7604994619,3cyclictest41-21ksoftirqd/322:05:263
7604994616,4cyclictest41-21ksoftirqd/323:05:173
7604994613,4cyclictest41-21ksoftirqd/323:25:163
760399461,7cyclictest33-21ksoftirqd/200:15:202
7603994613,9cyclictest33-21ksoftirqd/200:39:012
760499452,5cyclictest121rcu_preempt19:20:003
7604994517,3cyclictest41-21ksoftirqd/321:15:253
7604994513,4cyclictest41-21ksoftirqd/321:45:193
7604994511,8cyclictest41-21ksoftirqd/323:40:223
7604994510,7cyclictest41-21ksoftirqd/300:05:003
760399456,6cyclictest121rcu_preempt20:25:182
760399453,11cyclictest33-21ksoftirqd/223:35:142
7603994515,4cyclictest33-21ksoftirqd/223:16:372
7604994432,3cyclictest41-21ksoftirqd/323:30:263
7604994412,5cyclictest41-21ksoftirqd/321:20:263
7604994412,4cyclictest41-21ksoftirqd/322:20:173
7604994410,5cyclictest41-21ksoftirqd/323:15:153
760399444,5cyclictest33-21ksoftirqd/222:11:032
760399444,5cyclictest33-21ksoftirqd/222:11:032
138491440,0ptp4l401ktimersoftd/323:51:433
760499439,4cyclictest41-21ksoftirqd/320:45:133
760499436,5cyclictest41-21ksoftirqd/321:50:253
7604994315,3cyclictest41-21ksoftirqd/322:55:143
7604994313,3cyclictest41-21ksoftirqd/300:10:123
7604994313,3cyclictest41-21ksoftirqd/300:10:123
7604994311,4cyclictest41-21ksoftirqd/323:25:023
7604994310,5cyclictest41-21ksoftirqd/322:45:003
760499430,4cyclictest29477-21taskset20:59:533
760399433,6cyclictest33-21ksoftirqd/220:00:162
138491430,0ptp4l401ktimersoftd/323:39:243
138491430,0ptp4l401ktimersoftd/320:50:163
7604994211,4cyclictest41-21ksoftirqd/320:40:183
7604994210,3cyclictest41-21ksoftirqd/322:40:003
760399420,1cyclictest121rcu_preempt00:20:292
7602994230,4cyclictest25-21ksoftirqd/100:09:091
138491420,0ptp4l401ktimersoftd/322:45:213
760499412,2cyclictest121rcu_preempt21:05:103
760499411,2cyclictest121rcu_preempt20:09:443
760499410,2cyclictest121rcu_preempt20:10:123
7602994125,5cyclictest25-21ksoftirqd/119:25:011
760499408,8cyclictest41-21ksoftirqd/319:44:593
760499407,4cyclictest41-21ksoftirqd/322:15:143
760499406,5cyclictest41-21ksoftirqd/323:45:233
7604994035,3cyclictest41-21ksoftirqd/320:30:003
7604994035,3cyclictest25385-21fschecks_count23:00:143
7604994027,3cyclictest41-21ksoftirqd/321:40:273
7604994027,3cyclictest41-21ksoftirqd/321:40:263
7604994015,4cyclictest41-21ksoftirqd/319:25:143
760499400,2cyclictest121rcu_preempt22:04:593
7602994036,2cyclictest25-21ksoftirqd/120:59:591
7601994036,2cyclictest9-21ksoftirqd/021:00:000
760199400,3cyclictest121rcu_preempt22:55:260
760499398,5cyclictest41-21ksoftirqd/321:10:273
760499398,5cyclictest41-21ksoftirqd/321:10:273
760499398,4cyclictest41-21ksoftirqd/300:30:183
760499397,3cyclictest41-21ksoftirqd/321:35:263
760499390,2cyclictest121rcu_preempt21:25:243
760499390,2cyclictest121rcu_preempt21:00:263
7602993929,3cyclictest25-21ksoftirqd/123:13:261
760299392,3cyclictest121rcu_preempt22:04:591
7601993932,4cyclictest9-21ksoftirqd/021:18:580
7601993924,4cyclictest9-21ksoftirqd/000:40:000
760499386,4cyclictest41-21ksoftirqd/320:30:143
760499386,4cyclictest41-21ksoftirqd/320:30:143
760499380,3cyclictest121rcu_preempt21:30:143
7601993831,5cyclictest9-21ksoftirqd/020:45:120
760199380,6cyclictest17729-21fschecks_count23:50:160
760499374,2cyclictest121rcu_preempt23:10:113
7604993731,3cyclictest41-21ksoftirqd/320:15:183
760499371,5cyclictest121rcu_preempt20:00:283
7602993732,3cyclictest25-21ksoftirqd/119:55:011
7602993731,4cyclictest25-21ksoftirqd/121:10:181
7602993731,4cyclictest25-21ksoftirqd/121:10:181
760499366,3cyclictest41-21ksoftirqd/300:20:153
760499360,2cyclictest121rcu_preempt19:45:283
7602993632,3cyclictest25-21ksoftirqd/120:55:001
7602993631,3cyclictest25-21ksoftirqd/120:40:011
7602993630,4cyclictest25-21ksoftirqd/121:43:111
7602993630,4cyclictest25-21ksoftirqd/121:43:101
7602993630,4cyclictest25-21ksoftirqd/119:35:331
7602993630,4cyclictest25-21ksoftirqd/100:01:021
7602993630,3cyclictest25-21ksoftirqd/119:20:001
7601993632,2cyclictest9-21ksoftirqd/022:50:010
7601993630,4cyclictest9-21ksoftirqd/020:14:570
7601993630,3cyclictest9-21ksoftirqd/023:30:000
7601993619,4cyclictest9-21ksoftirqd/022:25:270
7602993531,3cyclictest25-21ksoftirqd/123:05:181
7602993531,3cyclictest25-21ksoftirqd/121:15:151
7602993530,3cyclictest25-21ksoftirqd/119:58:251
7602993530,3cyclictest25-21ksoftirqd/119:58:251
7602993530,3cyclictest25-21ksoftirqd/100:35:001
7602993529,4cyclictest25-21ksoftirqd/121:32:111
7602993529,4cyclictest25-21ksoftirqd/100:11:051
7602993529,4cyclictest25-21ksoftirqd/100:11:051
7602993528,4cyclictest25-21ksoftirqd/120:03:421
760299351,3cyclictest121rcu_preempt21:10:011
7601993531,2cyclictest9-21ksoftirqd/019:10:170
7601993530,3cyclictest9-21ksoftirqd/019:40:000
760199352,3cyclictest121rcu_preempt23:45:200
7601993520,4cyclictest9-21ksoftirqd/019:45:000
760199351,3cyclictest121rcu_preempt19:30:240
7602993431,2cyclictest25-21ksoftirqd/122:15:001
7602993431,2cyclictest25-21ksoftirqd/122:15:001
7602993429,3cyclictest25-21ksoftirqd/123:25:011
7602993428,4cyclictest25-21ksoftirqd/123:19:421
7602993428,4cyclictest25-21ksoftirqd/123:03:131
7602993428,4cyclictest25-21ksoftirqd/120:48:181
7602993427,5cyclictest25-21ksoftirqd/122:37:071
760299340,7cyclictest121rcu_preempt22:05:131
760199344,2cyclictest121rcu_preempt21:59:590
760199343,3cyclictest6506-21switchtime22:20:250
7601993430,3cyclictest9-21ksoftirqd/019:30:010
7601993429,3cyclictest9-21ksoftirqd/023:15:130
7601993429,3cyclictest9-21ksoftirqd/020:25:000
7601993428,4cyclictest9-21ksoftirqd/021:03:110
7601993428,4cyclictest9-21ksoftirqd/020:54:560
7601993428,4cyclictest9-21ksoftirqd/000:20:350
7601993428,3cyclictest9-21ksoftirqd/022:30:130
7601993428,3cyclictest9-21ksoftirqd/000:30:130
7601993427,5cyclictest9-21ksoftirqd/022:04:590
760199340,5cyclictest0-21swapper/000:05:190
7602993328,3cyclictest25-21ksoftirqd/119:49:541
7602993327,4cyclictest25-21ksoftirqd/122:52:021
7602993327,4cyclictest25-21ksoftirqd/122:24:181
7602993327,4cyclictest25-21ksoftirqd/119:41:551
7602993327,4cyclictest25-21ksoftirqd/100:23:211
7602993327,3cyclictest25-21ksoftirqd/123:30:011
7601993329,3cyclictest9-21ksoftirqd/023:05:000
7601993328,3cyclictest9-21ksoftirqd/022:15:010
7601993328,3cyclictest9-21ksoftirqd/022:15:010
7601993328,3cyclictest9-21ksoftirqd/021:20:020
7601993327,4cyclictest9-21ksoftirqd/021:31:190
7601993327,4cyclictest9-21ksoftirqd/020:25:560
7601993327,3cyclictest9-21ksoftirqd/023:20:100
7601993327,3cyclictest9-21ksoftirqd/020:05:110
7601993326,5cyclictest9-21ksoftirqd/022:07:570
760199331,3cyclictest121rcu_preempt19:50:110
760199331,2cyclictest0-21swapper/021:10:000
760199330,3cyclictest121rcu_preempt20:35:230
7602993229,2cyclictest25-21ksoftirqd/120:24:591
7602993228,3cyclictest25-21ksoftirqd/121:50:221
7602993228,2cyclictest25-21ksoftirqd/123:50:001
7602993227,3cyclictest25-21ksoftirqd/122:15:191
7602993227,3cyclictest25-21ksoftirqd/121:56:301
7602993226,4cyclictest25-21ksoftirqd/123:51:561
7602993226,4cyclictest25-21ksoftirqd/123:35:361
7602993226,4cyclictest25-21ksoftirqd/120:12:561
7602993226,4cyclictest25-21ksoftirqd/100:28:391
7602993225,4cyclictest25-21ksoftirqd/119:15:001
760199323,4cyclictest9-21ksoftirqd/023:38:240
7601993227,3cyclictest9-21ksoftirqd/023:40:120
7601993227,3cyclictest9-21ksoftirqd/023:10:390
7601993227,3cyclictest9-21ksoftirqd/023:08:160
7601993227,3cyclictest9-21ksoftirqd/022:55:010
7601993227,3cyclictest9-21ksoftirqd/000:00:180
7601993226,4cyclictest9-21ksoftirqd/022:42:100
7601993226,4cyclictest9-21ksoftirqd/020:04:200
7601993226,4cyclictest9-21ksoftirqd/000:27:370
7601993226,4cyclictest9-21ksoftirqd/000:17:260
760199320,2cyclictest121rcu_preempt19:15:180
7602993127,3cyclictest25-21ksoftirqd/120:44:141
7602993127,2cyclictest25-21ksoftirqd/123:55:171
7602993126,3cyclictest25-21ksoftirqd/120:06:421
7602993126,3cyclictest25-21ksoftirqd/119:29:151
7602993125,4cyclictest25-21ksoftirqd/123:34:361
7602993125,4cyclictest25-21ksoftirqd/122:43:041
7602993125,4cyclictest25-21ksoftirqd/122:31:491
7602993125,4cyclictest25-21ksoftirqd/121:20:491
7602993125,4cyclictest25-21ksoftirqd/121:03:061
7601993125,4cyclictest9-21ksoftirqd/021:44:340
7601993125,4cyclictest9-21ksoftirqd/021:44:340
7601993125,4cyclictest9-21ksoftirqd/021:12:520
7601993125,4cyclictest9-21ksoftirqd/021:12:520
7601993116,4cyclictest9-21ksoftirqd/021:50:000
760199310,3cyclictest121rcu_preempt19:20:190
7602993025,3cyclictest25-21ksoftirqd/121:39:201
7602993024,4cyclictest25-21ksoftirqd/123:42:541
7602993024,4cyclictest25-21ksoftirqd/121:27:501
7602993024,4cyclictest25-21ksoftirqd/100:16:151
7602993023,5cyclictest25-21ksoftirqd/122:46:571
7601993026,3cyclictest9-21ksoftirqd/020:40:170
7601993026,2cyclictest9-21ksoftirqd/023:30:180
7601993025,3cyclictest9-21ksoftirqd/021:50:540
7601993025,3cyclictest9-21ksoftirqd/019:57:410
7601993025,3cyclictest9-21ksoftirqd/019:57:410
7601993015,5cyclictest9-21ksoftirqd/020:15:190
760199300,2cyclictest121rcu_preempt21:25:240
7602992925,2cyclictest25-21ksoftirqd/120:33:021
7602992925,2cyclictest25-21ksoftirqd/120:33:021
7602992923,4cyclictest25-21ksoftirqd/119:32:521
7601992924,3cyclictest9-21ksoftirqd/020:30:150
7601992924,3cyclictest9-21ksoftirqd/020:30:150
7601992923,4cyclictest9-21ksoftirqd/000:10:080
7601992923,4cyclictest9-21ksoftirqd/000:10:080
7602992823,3cyclictest25-21ksoftirqd/122:29:111
7601992823,3cyclictest9-21ksoftirqd/021:36:040
7601992823,3cyclictest9-21ksoftirqd/000:00:010
7601992822,4cyclictest9-21ksoftirqd/022:36:090
7601992822,4cyclictest9-21ksoftirqd/022:16:120
7602992722,3cyclictest25-21ksoftirqd/121:45:211
7602992721,4cyclictest25-21ksoftirqd/120:26:561
7601992623,2cyclictest9-21ksoftirqd/019:45:140
7602992520,3cyclictest25-21ksoftirqd/100:35:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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