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2026-05-15 - 04:56
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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 rackdslot1.osadl.org (updated Fri May 15, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26248997410,62cyclictest29576-21kworker/1:200:31:491
26249997337,4cyclictest33-21ksoftirqd/200:00:002
101302690,4sleep110134-21timerandwakeup20:50:261
26249996834,4cyclictest33-21ksoftirqd/200:40:012
26249996828,7cyclictest33-21ksoftirqd/223:19:442
26249996733,7cyclictest33-21ksoftirqd/222:16:192
26249996729,4cyclictest33-21ksoftirqd/200:25:142
2624899670,24cyclictest2844-21hddtemp_smartct00:05:201
2624899670,22cyclictest5635-21cut00:10:191
134491670,3ptp4l9850-21ntp_states23:10:263
26249996626,6cyclictest33-21ksoftirqd/223:05:002
2624899660,27cyclictest10241-21awk22:00:281
2624899660,26cyclictest32079-21cat00:00:001
149412660,6sleep02624799cyclictest19:55:130
26249996530,4cyclictest33-21ksoftirqd/219:36:262
26249996530,4cyclictest33-21ksoftirqd/219:36:262
2624899652,26cyclictest0-21swapper/100:37:121
2624899650,24cyclictest14608-21ls21:00:261
26249996434,3cyclictest33-21ksoftirqd/220:05:002
26249996430,4cyclictest33-21ksoftirqd/223:43:282
26249996425,4cyclictest33-21ksoftirqd/220:30:002
2624899641,60cyclictest8041-21irqstats00:15:191
26249996333,4cyclictest33-21ksoftirqd/200:00:352
26249996333,3cyclictest33-21ksoftirqd/223:40:002
2624899632,19cyclictest0-21swapper/119:35:271
2624899632,19cyclictest0-21swapper/119:35:271
2624899630,30cyclictest31412-21seq21:39:371
2624899630,24cyclictest21490-21switchtime22:25:231
26249996233,4cyclictest33-21ksoftirqd/219:44:522
26249996230,5cyclictest33-21ksoftirqd/200:15:162
2624899621,22cyclictest12779-21expr00:25:221
134491620,3ptp4l28177-21ntp_states22:40:233
134491620,3ptp4l28177-21ntp_states22:40:233
26249996132,7cyclictest33-21ksoftirqd/220:39:172
26249996132,7cyclictest33-21ksoftirqd/220:39:172
26249996130,4cyclictest33-21ksoftirqd/222:54:022
26249996130,4cyclictest33-21ksoftirqd/219:45:152
26249996130,4cyclictest33-21ksoftirqd/219:22:082
26249996129,5cyclictest33-21ksoftirqd/221:20:162
26249996128,5cyclictest33-21ksoftirqd/221:45:282
26249996122,6cyclictest33-21ksoftirqd/222:40:002
2624899612,25cyclictest0-21swapper/120:35:181
2624899612,25cyclictest0-21swapper/120:35:181
2624899610,58cyclictest13650-21diskstats23:20:151
2624899610,25cyclictest21058-21timerwakeupswit20:05:291
2624899610,25cyclictest21058-21timerwakeupswit20:05:291
26249996029,4cyclictest33-21ksoftirqd/221:06:182
26249996028,4cyclictest33-21ksoftirqd/221:39:482
26249996025,7cyclictest33-21ksoftirqd/220:43:452
2624899602,18cyclictest0-21swapper/100:20:271
2624899601,26cyclictest5023-21taskset19:32:131
2624899600,29cyclictest26591-21chrt22:38:141
2624899600,28cyclictest28018-21seq19:10:291
26249995927,7cyclictest33-21ksoftirqd/220:00:002
26249995927,4cyclictest33-21ksoftirqd/222:55:492
26249995927,3cyclictest33-21ksoftirqd/219:50:132
26249995926,4cyclictest33-21ksoftirqd/219:10:222
2624899591,27cyclictest18748-21taskset20:01:061
2624899590,29cyclictest23827-21seq20:11:501
2624899590,24cyclictest26798-21cat23:45:271
2624899590,22cyclictest134491ptp4l00:04:341
134491590,5ptp4l0-21swapper/020:00:190
134491590,4ptp4l0-21swapper/123:27:401
134491590,4ptp4l0-21swapper/019:40:270
134491590,3ptp4l0-21swapper/022:00:120
26249995831,7cyclictest33-21ksoftirqd/222:05:152
26249995826,6cyclictest33-21ksoftirqd/220:10:212
26249995825,4cyclictest33-21ksoftirqd/200:22:182
26249995823,7cyclictest33-21ksoftirqd/223:20:212
26249995823,5cyclictest33-21ksoftirqd/221:15:192
26249995819,6cyclictest33-21ksoftirqd/222:50:002
2624899580,29cyclictest3589-21seq22:56:381
2624899580,29cyclictest28872-21taskset21:31:331
2624899580,29cyclictest19556-21taskset22:21:311
2624899580,29cyclictest17240-21seq21:05:421
2624899580,28cyclictest986-21seq21:40:331
2624899580,28cyclictest28883-21taskset22:42:171
2624899580,28cyclictest28883-21taskset22:42:171
2624899580,28cyclictest2653-21seq19:26:181
2624899580,27cyclictest7954-21taskset21:55:321
2624899580,27cyclictest24366-21seq22:34:161
2624899580,27cyclictest16613-21taskset19:58:221
134491580,3ptp4l25007-21cat23:44:553
26249995727,4cyclictest33-21ksoftirqd/221:02:352
26249995725,6cyclictest33-21ksoftirqd/222:25:142
26249995724,3cyclictest33-21ksoftirqd/221:30:272
2624899571,27cyclictest26475-21seq21:25:561
2624899570,30cyclictest3436-21seq21:46:311
2624899570,29cyclictest1180-21taskset22:51:121
2624899570,28cyclictest31175-21seq20:28:511
2624899570,28cyclictest20175-21seq23:34:501
2624899570,28cyclictest19794-21taskset21:13:551
2624899570,26cyclictest14418-21chrt19:54:391
26249995630,6cyclictest33-21ksoftirqd/223:35:002
26249995630,6cyclictest33-21ksoftirqd/220:45:182
26249995624,5cyclictest33-21ksoftirqd/223:25:162
26249995619,8cyclictest33-21ksoftirqd/223:50:202
2624899560,30cyclictest8082-21taskset20:46:151
2624899560,28cyclictest28696-21taskset20:21:361
2624899560,26cyclictest24265-21taskset21:22:081
2624899560,22cyclictest420-21taskset19:23:301
134491560,4ptp4l0-21swapper/323:55:353
134491560,3ptp4l0-21swapper/120:55:141
26249995542,3cyclictest33-21ksoftirqd/219:30:002
26249995529,7cyclictest33-21ksoftirqd/222:10:202
26249995529,6cyclictest33-21ksoftirqd/200:32:572
26249995525,4cyclictest33-21ksoftirqd/222:22:162
26249995518,8cyclictest33-21ksoftirqd/221:40:122
26249995517,5cyclictest33-21ksoftirqd/222:00:222
2624899552,19cyclictest0-21swapper/119:45:171
2624899552,17cyclictest0-21swapper/123:05:221
2624899551,28cyclictest24925-21seq23:43:521
2624899551,25cyclictest9538-21taskset19:40:591
2624899550,28cyclictest5704-21taskset21:51:071
2624899550,28cyclictest31599-21seq22:49:521
2624899550,28cyclictest22443-21chrt23:39:281
2624899550,28cyclictest13155-21seq22:10:061
2624899550,27cyclictest17239-21taskset22:16:351
2624899550,26cyclictest881-21chrt20:31:491
2624899550,26cyclictest29547-21chrt23:53:281
134491550,4ptp4l0-21swapper/022:30:260
26249995421,5cyclictest33-21ksoftirqd/223:09:252
2624899541,28cyclictest28604-21seq19:15:031
2624899541,28cyclictest12861-21seq23:17:241
2624899540,28cyclictest26543-21seq20:19:201
2624799549,9cyclictest9-21ksoftirqd/023:05:190
134491540,4ptp4l0-21swapper/320:51:433
134491540,4ptp4l0-21swapper/021:18:460
134491540,3ptp4l0-21swapper/019:27:470
26249995326,7cyclictest33-21ksoftirqd/220:05:292
26249995326,7cyclictest33-21ksoftirqd/220:05:292
26249995325,6cyclictest33-21ksoftirqd/221:55:272
26249995321,5cyclictest33-21ksoftirqd/219:15:162
26249995316,6cyclictest33-21ksoftirqd/223:45:142
2624899530,30cyclictest12661-21seq22:06:411
2624899530,28cyclictest6100-21seq23:04:011
134491530,4ptp4l0-21swapper/020:08:180
134491530,4ptp4l0-21swapper/020:08:180
134491530,3ptp4l0-21swapper/322:18:113
134491530,3ptp4l0-21swapper/020:49:140
26249995231,5cyclictest33-21ksoftirqd/220:58:242
26249995223,7cyclictest33-21ksoftirqd/221:25:252
2624899521,29cyclictest5719-21seq20:40:551
2624899520,29cyclictest21967-21seq21:17:211
134491520,4ptp4l0-21swapper/320:59:293
134491520,4ptp4l0-21swapper/319:12:043
134491520,4ptp4l0-21swapper/021:32:030
26249995138,3cyclictest33-21ksoftirqd/223:15:002
26249995120,4cyclictest33-21ksoftirqd/219:30:122
26249995113,6cyclictest33-21ksoftirqd/200:10:262
134491510,4ptp4l0-21swapper/321:45:183
134491510,4ptp4l0-21swapper/023:27:270
134491510,4ptp4l0-21swapper/022:14:240
134491510,4ptp4l0-21swapper/020:42:570
134491510,4ptp4l0-21swapper/020:33:360
26249995012,5cyclictest33-21ksoftirqd/220:15:222
134491500,4ptp4l0-21swapper/319:27:243
2624999494,7cyclictest33-21ksoftirqd/221:50:032
26249994921,7cyclictest33-21ksoftirqd/222:40:152
26249994921,7cyclictest33-21ksoftirqd/222:40:142
134491490,4ptp4l0-21swapper/323:34:193
134491490,4ptp4l0-21swapper/023:15:360
134491490,4ptp4l0-21swapper/022:20:380
134491490,4ptp4l0-21swapper/019:15:470
134491490,4ptp4l0-21swapper/000:02:350
134491490,3ptp4l0-21swapper/021:12:170
26249994834,3cyclictest33-21ksoftirqd/220:24:212
26249994824,12cyclictest33-21ksoftirqd/222:30:102
26247994813,4cyclictest9-21ksoftirqd/019:24:590
26249994714,8cyclictest33-21ksoftirqd/220:50:152
26247994718,4cyclictest9-21ksoftirqd/023:30:280
134491470,4ptp4l0-21swapper/323:07:583
134491470,3ptp4l0-21swapper/000:31:300
26249994611,6cyclictest33-21ksoftirqd/220:30:212
26247994614,4cyclictest9-21ksoftirqd/019:45:270
26247994610,4cyclictest9-21ksoftirqd/022:15:250
26247994514,5cyclictest9-21ksoftirqd/020:10:270
26247994513,6cyclictest9-21ksoftirqd/023:55:150
134491450,4ptp4l0-21swapper/300:03:243
134491450,3ptp4l0-21swapper/322:45:363
2624999448,8cyclictest33-21ksoftirqd/221:10:272
2624999441,2cyclictest121rcu_preempt00:05:182
26247994439,3cyclictest9-21ksoftirqd/020:40:010
26247994439,3cyclictest9-21ksoftirqd/020:40:010
2624799441,41cyclictest22126-21kworker/0:122:48:270
26247994413,4cyclictest9-21ksoftirqd/000:24:190
26247994411,8cyclictest9-21ksoftirqd/020:58:090
26247994411,6cyclictest9-21ksoftirqd/021:45:290
134491440,4ptp4l401ktimersoftd/320:40:103
134491440,3ptp4l0-21swapper/000:05:420
134491440,10ptp4l0-21swapper/319:20:113
26247994310,5cyclictest9-21ksoftirqd/020:20:120
134491430,6ptp4l0-21swapper/019:05:270
134491430,4ptp4l25387-21irqstats20:15:190
134491430,3ptp4l7205-21ls21:55:193
134491430,3ptp4l0-21swapper/020:27:200
2624899420,28cyclictest10729-21chrt23:14:291
26247994214,4cyclictest9-21ksoftirqd/023:21:320
26247994214,3cyclictest9-21ksoftirqd/020:55:010
2624799421,2cyclictest121rcu_preempt22:40:200
2624799421,2cyclictest121rcu_preempt22:40:190
26247994211,3cyclictest9-21ksoftirqd/019:38:200
26247994211,3cyclictest9-21ksoftirqd/019:38:200
26247994210,5cyclictest9-21ksoftirqd/023:00:150
26247994210,5cyclictest9-21ksoftirqd/019:30:260
26247994210,5cyclictest9-21ksoftirqd/000:10:200
134691420,10getstats0-21swapper/323:15:453
134491420,5ptp4l0-21swapper/321:30:153
134491420,5ptp4l0-21swapper/022:50:140
134491420,4ptp4l786-21ls21:40:260
134491420,4ptp4l15539-21apt-get21:05:113
134491420,4ptp4l0-21swapper/322:22:063
134491420,4ptp4l0-21swapper/119:05:151
134491420,4ptp4l0-21swapper/021:21:190
26250994134,4cyclictest41-21ksoftirqd/320:05:273
26250994134,4cyclictest41-21ksoftirqd/320:05:273
2624799417,5cyclictest9-21ksoftirqd/000:25:150
2624799414,5cyclictest9-21ksoftirqd/022:40:000
134691410,10getstats0-21swapper/320:14:213
134691410,10getstats0-21swapper/300:30:073
134691410,10getstats0-21swapper/300:25:343
134691410,10getstats0-21swapper/300:13:003
134491410,5ptp4l0-21swapper/021:05:190
134491410,5ptp4l0-21swapper/019:10:130
134491410,4ptp4l8836-21head00:15:280
134491410,4ptp4l24085-21apt-get20:15:013
134491410,4ptp4l22494-21apt-get23:40:020
134491410,4ptp4l0-21swapper/322:07:073
134491410,4ptp4l0-21swapper/321:25:213
134491410,4ptp4l0-21swapper/319:15:213
134491410,4ptp4l0-21swapper/023:50:390
134491410,4ptp4l0-21swapper/021:28:070
134491410,3ptp4l12712-21diskstats19:50:140
134491410,3ptp4l0-21swapper/322:02:293
134491410,3ptp4l0-21swapper/321:37:153
26247994035,3cyclictest9-21ksoftirqd/022:10:000
26247994034,3cyclictest9-21ksoftirqd/023:10:290
2624799401,37cyclictest18621-21kworker/0:221:01:020
134691400,10getstats0-21swapper/321:15:383
134691400,10getstats0-21swapper/320:20:083
134691400,10getstats0-21swapper/320:03:143
134491400,4ptp4l5717-21grep19:35:143
134491400,4ptp4l5717-21grep19:35:143
134491400,4ptp4l0-21swapper/023:45:140
134491400,4ptp4l0-21swapper/023:35:230
134491400,4ptp4l0-21swapper/000:35:310
134491400,3ptp4l28564-21ls23:50:203
134491400,3ptp4l0-21swapper/319:55:223
26250993934,3cyclictest41-21ksoftirqd/323:00:003
26250993934,3cyclictest41-21ksoftirqd/320:40:003
26250993934,3cyclictest41-21ksoftirqd/320:40:003
2624799398,4cyclictest9-21ksoftirqd/021:55:240
134491390,4ptp4l0-21swapper/322:51:503
134491390,4ptp4l0-21swapper/321:00:123
134491390,4ptp4l0-21swapper/320:48:393
134491390,4ptp4l0-21swapper/319:45:443
134491390,4ptp4l0-21swapper/319:30:133
134491390,4ptp4l0-21swapper/300:35:263
134491390,4ptp4l0-21swapper/300:20:143
134491390,4ptp4l0-21swapper/022:56:100
134491390,4ptp4l0-21swapper/021:52:340
134491390,3ptp4l24985-21diskstats22:35:163
134491390,3ptp4l21031-21meminfo22:25:170
134491390,3ptp4l0-21swapper/323:45:153
134491390,3ptp4l0-21swapper/319:40:223
134491390,3ptp4l0-21swapper/300:15:153
134491380,4ptp4l0-21swapper/322:10:493
134491380,4ptp4l0-21swapper/321:50:013
134491380,4ptp4l0-21swapper/321:42:253
134491380,4ptp4l0-21swapper/321:20:253
134491380,4ptp4l0-21swapper/021:36:070
26250993732,3cyclictest41-21ksoftirqd/322:25:093
134491370,4ptp4l0-21swapper/323:00:143
134491370,4ptp4l0-21swapper/319:51:563
134491370,3ptp4l0-21swapper/320:30:233
134491370,3ptp4l0-21swapper/320:25:303
134491370,3ptp4l0-21swapper/300:05:283
134491360,3ptp4l0-21swapper/322:33:543
134491360,3ptp4l0-21swapper/321:11:253
134491350,3ptp4l0-21swapper/323:36:483
134491350,3ptp4l0-21swapper/323:26:273
26250992924,3cyclictest41-21ksoftirqd/323:20:583
2503422115,2sleep30-21swapper/319:05:243
259562142,7sleep225966-21latencyplot19:09:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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