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2026-06-20 - 07:11
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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 376 highest latencies:
System rackdslot4.osadl.org (updated Sat Jun 20, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591235167,23phc2sys0-21swapper/319:09:363
103682203170,22sleep20-21swapper/219:07:082
103672202169,22sleep10-21swapper/119:07:071
102892200166,22sleep00-21swapper/019:06:060
2428021690,6sleep11088199cyclictest21:45:211
1385918361,14phc2sys0-21swapper/319:10:013
138491640,1ptp4l401ktimersoftd/319:41:123
10881996219,9cyclictest25-21ksoftirqd/119:40:261
80322610,2sleep00-21swapper/023:25:140
10881996015,10cyclictest25-21ksoftirqd/121:55:271
301522560,6sleep11088199cyclictest19:45:261
134991550,2getstats0-21swapper/320:30:253
10881995520,4cyclictest25-21ksoftirqd/120:05:181
10881995517,4cyclictest25-21ksoftirqd/122:00:231
138491540,0ptp4l401ktimersoftd/323:55:043
10881995423,9cyclictest25-21ksoftirqd/120:10:181
10881995415,9cyclictest25-21ksoftirqd/121:40:171
10881995412,6cyclictest25-21ksoftirqd/121:15:141
1088199538,8cyclictest25-21ksoftirqd/100:10:251
10881995320,6cyclictest25-21ksoftirqd/123:30:141
10881995313,10cyclictest25-21ksoftirqd/123:35:151
138491520,1ptp4l401ktimersoftd/322:50:193
138491520,1ptp4l391rcuc/320:53:143
10881995116,4cyclictest25-21ksoftirqd/123:50:121
10881995018,4cyclictest25-21ksoftirqd/120:45:001
10881995017,9cyclictest25-21ksoftirqd/119:35:121
10881995016,5cyclictest25-21ksoftirqd/100:00:241
10881995011,10cyclictest25-21ksoftirqd/123:25:171
10881994914,5cyclictest25-21ksoftirqd/121:30:161
1088199483,3cyclictest25-21ksoftirqd/122:50:261
10881994816,4cyclictest25-21ksoftirqd/120:25:131
10881994814,6cyclictest25-21ksoftirqd/121:05:131
5352470,1sleep20-21swapper/221:00:012
138491470,2ptp4l401ktimersoftd/323:43:553
1088199473,2cyclictest121rcu_preempt20:40:011
10881994716,4cyclictest25-21ksoftirqd/120:55:271
1088199471,2cyclictest121rcu_preempt22:15:261
10881994712,8cyclictest25-21ksoftirqd/123:45:231
10881994712,8cyclictest25-21ksoftirqd/123:45:231
1088199461,3cyclictest25-21ksoftirqd/119:20:201
10881994612,9cyclictest25-21ksoftirqd/122:05:161
10880994616,3cyclictest9-21ksoftirqd/022:20:230
10882994527,4cyclictest33-21ksoftirqd/223:25:282
10882994526,5cyclictest33-21ksoftirqd/223:10:212
1088199459,4cyclictest25-21ksoftirqd/120:15:131
10881994539,4cyclictest25-21ksoftirqd/123:19:591
1088199453,6cyclictest25-21ksoftirqd/120:05:011
10881994517,10cyclictest25-21ksoftirqd/119:55:221
10881994515,9cyclictest25-21ksoftirqd/122:25:141
10881994515,4cyclictest25-21ksoftirqd/122:55:151
10881994510,9cyclictest25-21ksoftirqd/100:20:141
10881994510,3cyclictest25-21ksoftirqd/121:50:191
1088199444,6cyclictest25-21ksoftirqd/119:15:231
10881994439,3cyclictest25-21ksoftirqd/121:40:001
1088199443,5cyclictest25-21ksoftirqd/123:00:311
10881994431,3cyclictest25-21ksoftirqd/119:35:011
10881994413,9cyclictest25-21ksoftirqd/120:45:191
10881994413,6cyclictest25-21ksoftirqd/100:30:281
10881994412,4cyclictest25-21ksoftirqd/120:20:191
10881994412,4cyclictest25-21ksoftirqd/100:09:151
10881994410,5cyclictest25-21ksoftirqd/123:55:021
1088199440,2cyclictest121rcu_preempt21:00:261
1088199440,2cyclictest121rcu_preempt19:50:211
10880994413,4cyclictest9-21ksoftirqd/019:40:230
10880994411,8cyclictest9-21ksoftirqd/000:05:270
10883994329,12cyclictest41-21ksoftirqd/300:20:103
10882994326,8cyclictest33-21ksoftirqd/219:35:002
1088199433,5cyclictest121rcu_preempt23:40:241
1088199433,3cyclictest121rcu_preempt22:35:091
1088199432,2cyclictest25-21ksoftirqd/121:10:151
10881994315,4cyclictest25-21ksoftirqd/100:35:231
1088199430,2cyclictest121rcu_preempt22:10:231
10880994330,6cyclictest9-21ksoftirqd/020:00:230
10880994316,4cyclictest9-21ksoftirqd/020:55:190
10880994314,6cyclictest9-21ksoftirqd/020:45:000
10880994313,3cyclictest9-21ksoftirqd/019:30:150
10880994312,7cyclictest9-21ksoftirqd/020:20:150
10880994312,5cyclictest9-21ksoftirqd/022:15:260
10880994312,3cyclictest9-21ksoftirqd/021:50:000
10880994311,7cyclictest9-21ksoftirqd/019:40:010
1088099430,2cyclictest223-21systemd-journal21:15:000
138491420,1ptp4l401ktimersoftd/322:15:163
10882994236,3cyclictest33-21ksoftirqd/219:50:002
10882994227,4cyclictest33-21ksoftirqd/221:25:112
1088199425,2cyclictest25-21ksoftirqd/120:50:121
1088199423,6cyclictest121rcu_preempt22:30:211
10881994230,10cyclictest25-21ksoftirqd/119:10:171
1088199422,2cyclictest25-21ksoftirqd/100:25:121
10881994216,10cyclictest25-21ksoftirqd/121:20:181
1088099429,7cyclictest9-21ksoftirqd/021:30:000
1088099426,4cyclictest9-21ksoftirqd/020:25:220
10880994214,4cyclictest9-21ksoftirqd/022:10:240
10882994125,5cyclictest33-21ksoftirqd/200:10:202
10882994124,5cyclictest33-21ksoftirqd/219:55:002
1088299410,2cyclictest121rcu_preempt19:15:112
10881994136,3cyclictest25-21ksoftirqd/120:35:001
10881994130,9cyclictest25-21ksoftirqd/123:10:041
10881994128,10cyclictest25-21ksoftirqd/122:40:161
1088199411,6cyclictest121rcu_preempt19:25:191
1088099418,3cyclictest9-21ksoftirqd/021:30:110
10880994110,8cyclictest9-21ksoftirqd/019:55:250
10880994110,3cyclictest9-21ksoftirqd/020:05:180
10882994034,3cyclictest33-21ksoftirqd/220:25:002
10882994033,3cyclictest25631-21cron19:40:002
10882994025,5cyclictest33-21ksoftirqd/200:20:242
10882994025,4cyclictest33-21ksoftirqd/223:35:172
10882994025,4cyclictest33-21ksoftirqd/220:30:232
10882994023,5cyclictest33-21ksoftirqd/221:05:262
10882994020,9cyclictest33-21ksoftirqd/222:55:192
10881994035,2cyclictest25-21ksoftirqd/123:20:181
10881994033,3cyclictest25-21ksoftirqd/121:25:131
1088199401,6cyclictest121rcu_preempt22:20:231
1088099409,8cyclictest9-21ksoftirqd/022:40:170
1088099409,4cyclictest9-21ksoftirqd/023:40:130
10880994013,3cyclictest9-21ksoftirqd/020:10:240
10880994012,9cyclictest9-21ksoftirqd/019:45:120
10880994012,4cyclictest9-21ksoftirqd/020:15:260
10880994010,3cyclictest9-21ksoftirqd/022:05:240
10883993933,4cyclictest41-21ksoftirqd/321:35:013
10882993934,3cyclictest33-21ksoftirqd/223:10:012
10882993928,9cyclictest33-21ksoftirqd/219:15:012
10882993922,8cyclictest33-21ksoftirqd/221:35:232
10882993920,8cyclictest33-21ksoftirqd/221:55:142
1088199391,6cyclictest25-21ksoftirqd/122:45:231
1088199391,6cyclictest25-21ksoftirqd/122:45:231
1088199390,6cyclictest121rcu_preempt23:05:131
1088099399,7cyclictest9-21ksoftirqd/000:15:190
1088099399,3cyclictest9-21ksoftirqd/019:25:210
1088099399,3cyclictest9-21ksoftirqd/019:10:190
1088099398,4cyclictest9-21ksoftirqd/023:55:160
1088099397,3cyclictest9-21ksoftirqd/022:30:230
1088099396,3cyclictest9-21ksoftirqd/020:30:190
1088099395,3cyclictest9-21ksoftirqd/023:30:250
1088099393,3cyclictest121rcu_preempt23:15:200
10880993912,6cyclictest9-21ksoftirqd/022:55:250
10880993911,8cyclictest9-21ksoftirqd/021:20:140
10880993911,3cyclictest9-21ksoftirqd/023:20:130
10880993911,3cyclictest9-21ksoftirqd/019:15:250
10880993911,3cyclictest9-21ksoftirqd/000:20:130
10882993832,4cyclictest33-21ksoftirqd/223:32:182
10882993831,4cyclictest33-21ksoftirqd/222:18:082
10882993826,9cyclictest33-21ksoftirqd/222:30:222
10882993823,8cyclictest33-21ksoftirqd/220:35:152
10882993823,4cyclictest33-21ksoftirqd/221:40:142
10882993821,9cyclictest33-21ksoftirqd/223:45:192
10882993821,9cyclictest33-21ksoftirqd/223:45:192
1088199386,7cyclictest25-21ksoftirqd/100:15:181
1088099389,6cyclictest9-21ksoftirqd/000:00:120
10880993810,7cyclictest9-21ksoftirqd/000:35:140
10880993810,3cyclictest9-21ksoftirqd/020:45:160
10880993810,3cyclictest9-21ksoftirqd/020:35:180
10880993810,3cyclictest9-21ksoftirqd/000:25:210
10883993731,4cyclictest41-21ksoftirqd/320:56:093
10883993731,3cyclictest41-21ksoftirqd/300:35:123
10882993733,3cyclictest33-21ksoftirqd/221:15:002
10882993732,3cyclictest33-21ksoftirqd/220:25:192
10882993731,4cyclictest33-21ksoftirqd/222:50:082
10882993731,4cyclictest33-21ksoftirqd/220:08:382
10882993722,5cyclictest33-21ksoftirqd/223:20:132
10882993721,5cyclictest33-21ksoftirqd/220:15:142
10882993720,8cyclictest33-21ksoftirqd/200:30:242
10882993719,8cyclictest33-21ksoftirqd/223:50:262
10882993719,8cyclictest33-21ksoftirqd/222:35:202
10882993719,8cyclictest33-21ksoftirqd/221:45:172
1088099379,3cyclictest9-21ksoftirqd/023:50:180
1088099377,3cyclictest9-21ksoftirqd/000:30:260
10880993731,4cyclictest9-21ksoftirqd/019:54:440
10880993724,3cyclictest9-21ksoftirqd/022:50:180
10883993631,3cyclictest29974-21sh23:05:003
10883993630,4cyclictest41-21ksoftirqd/321:16:433
10883993630,4cyclictest41-21ksoftirqd/319:23:463
10883993630,4cyclictest41-21ksoftirqd/300:01:153
10883993629,4cyclictest41-21ksoftirqd/320:28:053
10883993629,4cyclictest41-21ksoftirqd/319:37:023
10883993628,5cyclictest41-21ksoftirqd/323:27:083
10882993631,3cyclictest33-21ksoftirqd/222:29:592
10882993631,3cyclictest33-21ksoftirqd/220:00:002
10882993631,3cyclictest33-21ksoftirqd/200:20:012
10882993631,3cyclictest33-21ksoftirqd/200:08:192
10882993631,2cyclictest33-21ksoftirqd/223:40:182
10882993621,7cyclictest33-21ksoftirqd/220:10:132
10882993621,7cyclictest33-21ksoftirqd/200:35:142
10882993621,5cyclictest33-21ksoftirqd/221:30:232
10882993619,8cyclictest33-21ksoftirqd/220:50:122
1088099368,3cyclictest9-21ksoftirqd/022:25:150
1088099364,3cyclictest9-21ksoftirqd/023:00:320
10880993632,2cyclictest9-21ksoftirqd/022:40:000
10880993631,3cyclictest9-21ksoftirqd/023:50:010
10880993631,3cyclictest9-21ksoftirqd/023:50:010
10880993631,3cyclictest9-21ksoftirqd/023:10:010
10880993631,3cyclictest9-21ksoftirqd/022:00:130
10880993631,3cyclictest9-21ksoftirqd/020:50:120
10880993623,3cyclictest9-21ksoftirqd/019:24:370
10880993622,3cyclictest9-21ksoftirqd/021:40:190
10883993532,2cyclictest41-21ksoftirqd/319:20:003
10883993529,4cyclictest41-21ksoftirqd/320:23:513
10883993529,4cyclictest41-21ksoftirqd/320:09:353
10883993529,4cyclictest41-21ksoftirqd/300:13:423
10882993530,3cyclictest33-21ksoftirqd/222:50:012
10882993530,3cyclictest33-21ksoftirqd/222:50:002
10882993530,3cyclictest33-21ksoftirqd/200:00:122
10882993529,4cyclictest33-21ksoftirqd/222:03:482
10882993529,3cyclictest33-21ksoftirqd/219:25:002
10882993521,5cyclictest33-21ksoftirqd/223:55:182
10882993520,4cyclictest33-21ksoftirqd/200:25:142
10882993519,7cyclictest33-21ksoftirqd/222:20:162
10882993519,5cyclictest33-21ksoftirqd/221:15:132
10882993517,9cyclictest33-21ksoftirqd/222:40:212
1088099357,3cyclictest9-21ksoftirqd/021:50:190
10880993531,2cyclictest9-21ksoftirqd/023:10:120
10880993531,2cyclictest9-21ksoftirqd/000:10:270
10880993530,3cyclictest9-21ksoftirqd/021:55:180
10880993529,4cyclictest9-21ksoftirqd/021:19:010
138491340,12ptp4l401ktimersoftd/322:05:153
10883993429,3cyclictest41-21ksoftirqd/323:36:313
10883993428,4cyclictest41-21ksoftirqd/322:30:413
10882993430,2cyclictest33-21ksoftirqd/222:05:192
10882993428,4cyclictest33-21ksoftirqd/223:17:332
10882993428,4cyclictest33-21ksoftirqd/220:46:252
10882993428,4cyclictest33-21ksoftirqd/219:29:262
10882993414,9cyclictest33-21ksoftirqd/219:40:192
1088099344,3cyclictest9-21ksoftirqd/021:04:560
10880993430,3cyclictest9-21ksoftirqd/021:35:130
10880993428,3cyclictest9-21ksoftirqd/022:45:130
10880993428,3cyclictest9-21ksoftirqd/022:45:130
138491330,0ptp4l401ktimersoftd/319:50:243
10883993328,3cyclictest41-21ksoftirqd/321:40:113
10883993327,4cyclictest41-21ksoftirqd/323:14:333
10883993327,4cyclictest41-21ksoftirqd/319:46:243
10883993327,4cyclictest41-21ksoftirqd/319:33:533
10882993328,3cyclictest33-21ksoftirqd/222:14:232
10882993319,4cyclictest33-21ksoftirqd/223:00:182
10880993328,3cyclictest9-21ksoftirqd/021:05:200
10880993327,3cyclictest9-21ksoftirqd/023:35:220
138491320,0ptp4l401ktimersoftd/322:25:193
138491320,0ptp4l401ktimersoftd/321:20:303
10883993228,2cyclictest41-21ksoftirqd/323:15:253
10883993227,3cyclictest41-21ksoftirqd/322:44:093
10883993227,3cyclictest41-21ksoftirqd/321:03:123
10883993226,4cyclictest41-21ksoftirqd/322:20:513
10883993226,4cyclictest41-21ksoftirqd/322:02:563
10883993226,4cyclictest41-21ksoftirqd/320:42:093
10882993227,3cyclictest33-21ksoftirqd/221:53:562
10882993227,3cyclictest33-21ksoftirqd/220:00:142
138491310,9ptp4l401ktimersoftd/322:39:543
138491310,0ptp4l401ktimersoftd/321:57:283
10883993126,3cyclictest41-21ksoftirqd/322:50:003
10883993126,3cyclictest41-21ksoftirqd/322:50:003
10883993126,3cyclictest41-21ksoftirqd/320:35:103
10883993126,3cyclictest41-21ksoftirqd/320:13:353
10883993125,4cyclictest41-21ksoftirqd/300:15:063
10883993118,11cyclictest41-21ksoftirqd/323:10:003
10882993127,2cyclictest33-21ksoftirqd/221:05:002
10882993121,8cyclictest33-21ksoftirqd/220:40:112
138491300,0ptp4l401ktimersoftd/323:49:513
138491300,0ptp4l401ktimersoftd/323:49:513
138491300,0ptp4l401ktimersoftd/321:51:353
138491300,0ptp4l401ktimersoftd/321:35:153
138491300,0ptp4l401ktimersoftd/321:12:393
138491300,0ptp4l401ktimersoftd/320:00:253
138491300,0ptp4l401ktimersoftd/300:27:343
10883993025,3cyclictest41-21ksoftirqd/300:33:133
10883993024,4cyclictest41-21ksoftirqd/321:28:263
10883993024,4cyclictest41-21ksoftirqd/321:06:033
10882993024,4cyclictest33-21ksoftirqd/221:24:442
138491290,0ptp4l401ktimersoftd/323:53:573
10883992924,3cyclictest41-21ksoftirqd/319:25:333
10883992923,4cyclictest41-21ksoftirqd/320:17:013
10883992922,4cyclictest41-21ksoftirqd/320:47:423
138491280,0ptp4l401ktimersoftd/322:14:433
138491280,0ptp4l401ktimersoftd/321:45:113
138491280,0ptp4l401ktimersoftd/300:07:013
10883992821,4cyclictest41-21ksoftirqd/322:55:043
10883992722,3cyclictest41-21ksoftirqd/319:57:493
10883992621,3cyclictest41-21ksoftirqd/323:30:093
10883992520,3cyclictest41-21ksoftirqd/323:24:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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