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2026-07-13 - 06:24
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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 Mon Jul 13, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
77152208174,22sleep20-21swapper/219:07:182
77152208174,22sleep20-21swapper/219:07:172
77232204169,23sleep00-21swapper/019:07:240
77232204169,23sleep00-21swapper/019:07:240
76512204171,22sleep10-21swapper/119:06:271
76512204171,22sleep10-21swapper/119:06:271
75902202168,22sleep30-21swapper/319:05:453
75902202168,22sleep30-21swapper/319:05:453
160882690,1sleep216089-21/usr/sbin/munin23:45:182
138491600,1ptp4l401ktimersoftd/300:35:243
138491590,1ptp4l401ktimersoftd/323:18:573
6842580,6sleep341-21ksoftirqd/320:00:103
138491570,1ptp4l401ktimersoftd/322:14:443
208812550,1sleep20-21swapper/219:35:132
208812550,1sleep20-21swapper/219:35:122
138491540,1ptp4l401ktimersoftd/323:20:123
79312520,2sleep10-21swapper/123:30:001
128082520,3sleep212807-21sshd19:16:032
8217995022,8cyclictest25-21ksoftirqd/121:40:271
138491500,1ptp4l401ktimersoftd/322:01:213
8217994817,4cyclictest25-21ksoftirqd/123:50:161
8217994817,4cyclictest25-21ksoftirqd/123:50:161
8217994716,4cyclictest25-21ksoftirqd/119:15:001
8217994617,4cyclictest25-21ksoftirqd/120:20:221
8217994616,6cyclictest25-21ksoftirqd/120:05:241
8217994615,7cyclictest25-21ksoftirqd/121:10:001
8217994521,3cyclictest25-21ksoftirqd/120:58:551
8217994513,4cyclictest25-21ksoftirqd/122:30:001
821799449,5cyclictest25-21ksoftirqd/121:30:151
138491440,0ptp4l401ktimersoftd/320:08:343
821799436,7cyclictest25-21ksoftirqd/122:05:251
821799436,4cyclictest25-21ksoftirqd/123:20:231
8217994316,7cyclictest25-21ksoftirqd/121:55:141
138491430,0ptp4l401ktimersoftd/320:50:083
138491430,0ptp4l401ktimersoftd/320:11:103
821799423,5cyclictest25-21ksoftirqd/120:30:191
821799422,36cyclictest1303-21runrttasks21:18:021
821799421,8cyclictest25-21ksoftirqd/120:35:201
8217994214,7cyclictest25-21ksoftirqd/122:55:241
8217994213,4cyclictest25-21ksoftirqd/122:50:221
8217994213,3cyclictest25-21ksoftirqd/122:20:161
8216994236,3cyclictest9-21ksoftirqd/021:20:000
8216994235,4cyclictest20563-21cron19:35:000
821799419,6cyclictest25-21ksoftirqd/123:55:271
821799417,8cyclictest25-21ksoftirqd/120:00:161
821799416,7cyclictest25-21ksoftirqd/121:00:121
821799415,6cyclictest25-21ksoftirqd/121:20:231
8217994136,3cyclictest25-21ksoftirqd/119:20:011
8217994136,3cyclictest25-21ksoftirqd/100:20:001
8217994128,9cyclictest25-21ksoftirqd/122:40:251
8217994114,7cyclictest25-21ksoftirqd/119:30:261
821899400,38cyclictest0-21swapper/221:55:232
821799408,7cyclictest25-21ksoftirqd/100:05:221
821799406,8cyclictest25-21ksoftirqd/119:35:241
821799406,8cyclictest25-21ksoftirqd/119:35:241
821799406,4cyclictest25-21ksoftirqd/120:45:011
821799406,3cyclictest25-21ksoftirqd/122:35:281
821799405,8cyclictest25-21ksoftirqd/119:40:281
821799404,6cyclictest25-21ksoftirqd/119:45:141
821799403,4cyclictest25-21ksoftirqd/100:25:211
821799402,4cyclictest25-21ksoftirqd/123:45:181
821799401,7cyclictest25-21ksoftirqd/100:20:161
821799401,5cyclictest25-21ksoftirqd/123:05:261
8217994010,8cyclictest25-21ksoftirqd/119:55:231
138491400,1ptp4l401ktimersoftd/319:27:373
821999392,36cyclictest15225-21kworker/3:019:10:443
821899390,37cyclictest0-21swapper/222:30:232
821799397,7cyclictest25-21ksoftirqd/100:10:261
821799397,6cyclictest25-21ksoftirqd/119:25:241
8217993933,3cyclictest25-21ksoftirqd/122:45:141
821799391,5cyclictest25-21ksoftirqd/123:10:271
8217993911,7cyclictest25-21ksoftirqd/100:35:221
8217993910,3cyclictest25-21ksoftirqd/100:30:151
138491390,0ptp4l401ktimersoftd/320:33:233
8219993832,4cyclictest41-21ksoftirqd/320:40:343
821899380,37cyclictest0-21swapper/221:00:232
821899380,37cyclictest0-21swapper/220:05:232
821899380,36cyclictest25313-21kworker/u8:020:55:242
821899380,1cyclictest24695-21ls00:00:332
821799389,4cyclictest25-21ksoftirqd/121:28:441
821799389,3cyclictest25-21ksoftirqd/120:10:181
821799385,2cyclictest121rcu_preempt22:00:131
8217993833,3cyclictest25-21ksoftirqd/120:50:241
8217993832,3cyclictest25-21ksoftirqd/123:20:001
8217993831,4cyclictest25-21ksoftirqd/120:48:291
821799380,10cyclictest25-21ksoftirqd/123:40:141
8216993833,3cyclictest9-21ksoftirqd/022:15:000
8216993831,4cyclictest9-21ksoftirqd/022:09:010
138491380,0ptp4l401ktimersoftd/321:20:143
138491380,0ptp4l401ktimersoftd/300:10:223
8218993730,4cyclictest33-21ksoftirqd/219:33:282
821899370,36cyclictest0-21swapper/223:25:332
821799374,3cyclictest121rcu_preempt23:35:141
821799374,2cyclictest121rcu_preempt21:45:251
8217993732,3cyclictest25-21ksoftirqd/119:25:001
8217993731,4cyclictest25-21ksoftirqd/119:50:321
8217993731,3cyclictest25-21ksoftirqd/123:05:011
821799371,4cyclictest25-21ksoftirqd/122:15:221
8216993732,3cyclictest9-21ksoftirqd/019:15:000
8216993731,4cyclictest9-21ksoftirqd/022:54:330
8216993731,4cyclictest9-21ksoftirqd/022:39:530
821699372,5cyclictest5366-21cron21:15:000
8219993631,3cyclictest41-21ksoftirqd/321:08:573
8219993630,4cyclictest41-21ksoftirqd/323:58:233
8219993630,4cyclictest41-21ksoftirqd/322:17:133
8219993630,4cyclictest41-21ksoftirqd/321:51:413
821999362,32cyclictest26472-21irqrtprio19:45:173
8218993631,3cyclictest33-21ksoftirqd/200:31:102
8218993630,4cyclictest33-21ksoftirqd/222:16:242
8218993630,4cyclictest33-21ksoftirqd/221:37:362
8218993630,4cyclictest33-21ksoftirqd/221:14:222
8218993630,4cyclictest33-21ksoftirqd/221:09:122
8218993630,4cyclictest33-21ksoftirqd/219:11:382
8218993630,3cyclictest33-21ksoftirqd/223:00:002
8218993630,3cyclictest33-21ksoftirqd/220:54:542
821799368,4cyclictest25-21ksoftirqd/123:30:141
8217993633,2cyclictest25-21ksoftirqd/122:10:281
8217993632,2cyclictest25-21ksoftirqd/120:15:141
8217993630,3cyclictest25-21ksoftirqd/100:00:151
8217993629,5cyclictest25-21ksoftirqd/120:29:071
821799362,7cyclictest25-21ksoftirqd/121:35:251
8216993631,3cyclictest9-21ksoftirqd/020:35:110
8216993631,3cyclictest9-21ksoftirqd/000:00:010
8216993630,4cyclictest9-21ksoftirqd/021:31:210
8216993630,4cyclictest9-21ksoftirqd/000:29:040
821699360,34cyclictest2922-21sh21:10:000
8219993530,3cyclictest41-21ksoftirqd/320:21:063
8219993529,4cyclictest41-21ksoftirqd/323:35:083
8219993529,4cyclictest41-21ksoftirqd/323:26:253
8219993529,4cyclictest41-21ksoftirqd/322:09:033
8219993529,4cyclictest41-21ksoftirqd/321:55:023
8219993529,4cyclictest41-21ksoftirqd/321:26:463
8219993529,4cyclictest41-21ksoftirqd/319:23:073
8219993529,4cyclictest41-21ksoftirqd/300:32:133
8219993528,4cyclictest41-21ksoftirqd/323:03:553
8218993529,4cyclictest33-21ksoftirqd/223:20:112
8218993529,4cyclictest33-21ksoftirqd/221:29:462
8218993529,4cyclictest33-21ksoftirqd/220:42:402
8218993529,4cyclictest33-21ksoftirqd/200:07:082
8218993529,4cyclictest33-21ksoftirqd/200:00:002
8218993528,4cyclictest33-21ksoftirqd/200:27:092
821799352,8cyclictest25-21ksoftirqd/121:50:221
821799351,6cyclictest25-21ksoftirqd/121:10:251
8216993531,2cyclictest9-21ksoftirqd/021:50:000
8216993530,3cyclictest9-21ksoftirqd/023:40:000
8216993530,3cyclictest9-21ksoftirqd/020:30:130
8216993529,4cyclictest9-21ksoftirqd/022:41:350
8216993529,4cyclictest9-21ksoftirqd/022:16:100
8216993529,4cyclictest9-21ksoftirqd/021:43:040
8216993529,4cyclictest9-21ksoftirqd/020:08:120
8216993529,4cyclictest9-21ksoftirqd/020:02:220
8216993529,4cyclictest9-21ksoftirqd/000:03:090
8216993529,3cyclictest9-21ksoftirqd/023:45:190
8216993528,4cyclictest9-21ksoftirqd/020:15:060
8219993430,2cyclictest41-21ksoftirqd/320:55:413
8219993429,3cyclictest41-21ksoftirqd/323:41:363
8219993429,3cyclictest41-21ksoftirqd/300:00:193
8219993428,4cyclictest41-21ksoftirqd/323:33:233
8219993428,4cyclictest41-21ksoftirqd/322:33:343
8219993428,4cyclictest41-21ksoftirqd/320:36:563
8219993427,4cyclictest41-21ksoftirqd/300:25:393
8218993428,4cyclictest33-21ksoftirqd/222:44:442
8218993428,4cyclictest33-21ksoftirqd/222:15:002
8218993428,4cyclictest33-21ksoftirqd/221:40:292
8218993428,4cyclictest33-21ksoftirqd/221:17:392
8218993427,4cyclictest33-21ksoftirqd/222:28:232
8216993430,2cyclictest9-21ksoftirqd/022:35:000
8216993429,3cyclictest9-21ksoftirqd/022:45:090
8216993429,3cyclictest9-21ksoftirqd/020:47:360
8216993429,3cyclictest9-21ksoftirqd/000:15:130
8216993429,3cyclictest9-21ksoftirqd/000:05:110
8216993428,4cyclictest9-21ksoftirqd/020:58:110
8216993428,3cyclictest9-21ksoftirqd/021:20:180
8216993424,4cyclictest9-21ksoftirqd/023:23:170
8219993328,3cyclictest41-21ksoftirqd/321:20:003
8219993328,3cyclictest41-21ksoftirqd/319:35:213
8219993328,3cyclictest41-21ksoftirqd/319:35:213
8219993327,4cyclictest41-21ksoftirqd/322:57:593
8219993327,4cyclictest41-21ksoftirqd/322:41:563
8219993327,4cyclictest41-21ksoftirqd/321:35:373
8219993327,4cyclictest41-21ksoftirqd/320:26:453
8219993327,4cyclictest41-21ksoftirqd/319:52:103
8219993326,4cyclictest41-21ksoftirqd/321:41:593
8218993329,3cyclictest33-21ksoftirqd/200:23:312
8218993328,3cyclictest33-21ksoftirqd/220:25:202
8218993327,4cyclictest33-21ksoftirqd/220:19:462
8218993327,4cyclictest33-21ksoftirqd/219:59:242
8218993327,3cyclictest33-21ksoftirqd/219:49:392
8218993327,3cyclictest33-21ksoftirqd/200:11:072
8218993326,5cyclictest33-21ksoftirqd/222:36:142
8216993328,3cyclictest9-21ksoftirqd/022:20:010
8216993328,3cyclictest9-21ksoftirqd/021:35:110
8216993328,3cyclictest9-21ksoftirqd/020:20:120
8216993328,3cyclictest9-21ksoftirqd/019:55:200
8216993328,3cyclictest9-21ksoftirqd/019:50:140
8216993328,3cyclictest9-21ksoftirqd/019:46:260
8216993327,4cyclictest9-21ksoftirqd/023:55:010
8216993327,4cyclictest9-21ksoftirqd/023:55:010
8216993327,4cyclictest9-21ksoftirqd/019:28:410
8216993326,4cyclictest9-21ksoftirqd/000:11:280
138491330,0ptp4l401ktimersoftd/322:45:123
138491330,0ptp4l401ktimersoftd/322:29:053
138491330,0ptp4l401ktimersoftd/319:15:223
8219993226,4cyclictest41-21ksoftirqd/321:31:033
8219993226,4cyclictest41-21ksoftirqd/321:02:513
8218993227,3cyclictest33-21ksoftirqd/223:34:062
8218993226,4cyclictest33-21ksoftirqd/222:50:422
8218993226,4cyclictest33-21ksoftirqd/220:14:442
8218993226,4cyclictest33-21ksoftirqd/219:29:592
8217993228,3cyclictest25-21ksoftirqd/122:35:001
8216993228,2cyclictest9-21ksoftirqd/022:55:190
8216993228,2cyclictest9-21ksoftirqd/019:45:010
8216993227,3cyclictest9-21ksoftirqd/023:40:340
8216993227,3cyclictest9-21ksoftirqd/021:01:280
8216993227,3cyclictest9-21ksoftirqd/020:10:200
8216993227,3cyclictest9-21ksoftirqd/019:15:190
8216993226,4cyclictest9-21ksoftirqd/022:29:010
8216993226,4cyclictest9-21ksoftirqd/022:04:340
138491320,0ptp4l401ktimersoftd/319:40:193
138491320,0ptp4l401ktimersoftd/319:31:413
138491320,0ptp4l401ktimersoftd/300:06:093
8219993126,3cyclictest41-21ksoftirqd/323:11:253
8219993126,3cyclictest41-21ksoftirqd/320:45:113
8219993125,4cyclictest41-21ksoftirqd/300:17:163
8218993126,3cyclictest33-21ksoftirqd/223:06:162
8218993126,3cyclictest33-21ksoftirqd/220:04:402
8218993126,3cyclictest33-21ksoftirqd/200:18:362
8218993124,4cyclictest33-21ksoftirqd/223:35:392
8218993124,4cyclictest33-21ksoftirqd/222:21:572
8216993127,3cyclictest9-21ksoftirqd/020:40:190
8216993126,3cyclictest9-21ksoftirqd/023:28:190
8216993126,3cyclictest9-21ksoftirqd/021:55:000
8216993126,3cyclictest9-21ksoftirqd/020:55:000
8216993126,3cyclictest9-21ksoftirqd/000:22:430
8216993125,4cyclictest9-21ksoftirqd/023:30:560
8216993125,4cyclictest9-21ksoftirqd/020:27:590
138491310,0ptp4l401ktimersoftd/323:45:423
138491310,0ptp4l401ktimersoftd/321:47:073
138491310,0ptp4l401ktimersoftd/319:56:043
8219993025,3cyclictest41-21ksoftirqd/300:22:153
8219993024,4cyclictest41-21ksoftirqd/323:52:573
8219993024,4cyclictest41-21ksoftirqd/323:52:573
8219993024,4cyclictest41-21ksoftirqd/322:37:113
8218993024,4cyclictest33-21ksoftirqd/223:54:082
8218993024,4cyclictest33-21ksoftirqd/223:54:082
8218993024,4cyclictest33-21ksoftirqd/222:48:322
8216993025,3cyclictest9-21ksoftirqd/000:37:530
8216993025,3cyclictest22364-21kworker/0:023:15:140
8216993025,2cyclictest9-21ksoftirqd/023:10:140
8216993024,4cyclictest9-21ksoftirqd/021:57:080
8216993023,4cyclictest9-21ksoftirqd/021:25:070
8218992924,3cyclictest33-21ksoftirqd/223:40:092
8218992924,3cyclictest33-21ksoftirqd/221:48:432
8218992924,3cyclictest33-21ksoftirqd/220:39:022
8218992924,3cyclictest33-21ksoftirqd/200:38:592
8218992923,4cyclictest33-21ksoftirqd/220:33:172
8218992923,4cyclictest33-21ksoftirqd/219:20:362
8216992925,3cyclictest9-21ksoftirqd/019:20:180
8216992924,3cyclictest9-21ksoftirqd/023:05:190
8219992823,3cyclictest41-21ksoftirqd/322:22:513
8219992823,3cyclictest41-21ksoftirqd/321:11:033
8218992823,3cyclictest33-21ksoftirqd/222:02:002
8218992823,3cyclictest33-21ksoftirqd/221:31:482
8218992823,3cyclictest33-21ksoftirqd/220:21:072
8218992822,4cyclictest33-21ksoftirqd/223:03:012
8218992820,6cyclictest33-21ksoftirqd/221:25:002
8216992822,4cyclictest9-21ksoftirqd/023:03:110
8219992722,3cyclictest41-21ksoftirqd/322:53:483
8219992721,4cyclictest41-21ksoftirqd/323:05:583
8218992721,4cyclictest33-21ksoftirqd/219:41:272
8216992723,2cyclictest9-21ksoftirqd/000:30:260
8216992722,3cyclictest9-21ksoftirqd/019:39:090
8216992722,3cyclictest9-21ksoftirqd/019:39:080
8218992620,4cyclictest33-21ksoftirqd/220:45:572
821899260,24cyclictest0-21swapper/221:50:332
8218992522,2cyclictest33-21ksoftirqd/223:15:252
8218992520,3cyclictest33-21ksoftirqd/223:11:162
8218992519,4cyclictest33-21ksoftirqd/219:52:052
138491250,0ptp4l401ktimersoftd/320:15:263
8218992116,3cyclictest33-21ksoftirqd/222:05:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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