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2026-04-14 - 13:42
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Tue Apr 14, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
184822218170,37sleep20-21swapper/219:05:592
185082206171,23sleep30-21swapper/319:06:203
185932204170,22sleep00-21swapper/019:07:220
184412203171,21sleep10-21swapper/119:05:301
139291880,1ptp4l401ktimersoftd/321:31:263
305782630,4sleep10-21swapper/100:00:161
45972610,3sleep00-21swapper/020:50:270
139291550,1ptp4l401ktimersoftd/323:32:013
19222995321,9cyclictest33-21ksoftirqd/219:35:012
19222995316,7cyclictest33-21ksoftirqd/219:55:212
19222995221,4cyclictest33-21ksoftirqd/200:10:122
19222995220,4cyclictest33-21ksoftirqd/222:30:242
19222995123,6cyclictest33-21ksoftirqd/220:00:162
19222995122,7cyclictest33-21ksoftirqd/220:35:282
19222995120,4cyclictest33-21ksoftirqd/221:55:162
19222995120,3cyclictest33-21ksoftirqd/223:45:232
19222995016,4cyclictest33-21ksoftirqd/220:25:252
19222994922,7cyclictest33-21ksoftirqd/200:30:152
19222994918,7cyclictest33-21ksoftirqd/223:55:002
19222994916,4cyclictest33-21ksoftirqd/223:30:002
19222994821,6cyclictest33-21ksoftirqd/222:50:252
19222994818,7cyclictest33-21ksoftirqd/221:20:192
19222994817,3cyclictest33-21ksoftirqd/222:10:182
19222994817,3cyclictest33-21ksoftirqd/219:15:152
19222994816,5cyclictest33-21ksoftirqd/220:10:252
1922299481,44cyclictest12077-21cron00:30:012
19222994813,7cyclictest33-21ksoftirqd/222:40:132
1922299476,8cyclictest33-21ksoftirqd/221:50:262
19222994717,4cyclictest33-21ksoftirqd/221:25:282
19222994716,4cyclictest33-21ksoftirqd/220:20:142
19222994713,4cyclictest33-21ksoftirqd/222:45:142
19222994710,6cyclictest33-21ksoftirqd/221:05:232
1922299459,7cyclictest33-21ksoftirqd/222:05:002
1922299457,4cyclictest33-21ksoftirqd/220:45:222
19222994516,6cyclictest33-21ksoftirqd/219:50:192
19222994515,6cyclictest33-21ksoftirqd/221:40:272
19222994515,6cyclictest33-21ksoftirqd/221:40:272
1922299450,3cyclictest33-21ksoftirqd/223:40:152
1922299447,5cyclictest33-21ksoftirqd/219:35:012
1922299445,4cyclictest33-21ksoftirqd/220:05:262
1922299444,7cyclictest33-21ksoftirqd/221:15:162
19222994431,11cyclictest33-21ksoftirqd/223:10:002
19222994414,7cyclictest33-21ksoftirqd/220:55:012
19222994414,3cyclictest33-21ksoftirqd/222:27:592
19222994410,5cyclictest33-21ksoftirqd/219:50:002
19221994415,6cyclictest25-21ksoftirqd/121:45:191
1922299439,8cyclictest33-21ksoftirqd/223:55:112
19222994331,8cyclictest33-21ksoftirqd/223:10:272
19222994330,11cyclictest33-21ksoftirqd/223:25:012
19222994330,11cyclictest33-21ksoftirqd/219:30:012
19222994312,3cyclictest33-21ksoftirqd/220:55:192
19222994310,9cyclictest33-21ksoftirqd/220:15:142
19221994313,4cyclictest25-21ksoftirqd/121:10:261
139291430,0ptp4l401ktimersoftd/319:40:313
1922299429,10cyclictest33-21ksoftirqd/219:20:172
1922299426,4cyclictest33-21ksoftirqd/223:34:592
19222994233,2cyclictest33-21ksoftirqd/223:00:172
19222994213,3cyclictest33-21ksoftirqd/219:14:272
19221994211,3cyclictest25-21ksoftirqd/123:45:011
139291420,0ptp4l401ktimersoftd/323:00:223
41298410,1rtkit-daemon411-21rtkit-daemon00:10:150
1922299419,8cyclictest33-21ksoftirqd/222:55:262
1922299415,10cyclictest33-21ksoftirqd/222:05:142
1922299413,7cyclictest33-21ksoftirqd/221:30:202
19222994134,4cyclictest33-21ksoftirqd/200:20:012
19222994116,3cyclictest33-21ksoftirqd/222:15:252
1922299411,3cyclictest121rcu_preempt23:35:182
1922299411,3cyclictest121rcu_preempt00:09:592
19221994136,3cyclictest25-21ksoftirqd/122:35:001
19221994132,5cyclictest25-21ksoftirqd/121:50:131
19221994131,7cyclictest25-21ksoftirqd/123:00:151
19221994123,8cyclictest25-21ksoftirqd/123:55:011
1922199411,4cyclictest25-21ksoftirqd/122:20:181
139291410,0ptp4l401ktimersoftd/322:11:103
139291410,0ptp4l401ktimersoftd/319:30:143
139291410,0ptp4l401ktimersoftd/300:35:143
19223994035,3cyclictest41-21ksoftirqd/323:50:263
1922299407,9cyclictest33-21ksoftirqd/223:15:192
1922299400,2cyclictest121rcu_preempt22:40:002
1922299400,2cyclictest121rcu_preempt19:45:002
1922199405,3cyclictest25-21ksoftirqd/100:05:241
1922199405,3cyclictest121rcu_preempt20:45:211
139291400,0ptp4l401ktimersoftd/321:05:193
1922299395,9cyclictest33-21ksoftirqd/200:00:152
19222993935,3cyclictest33-21ksoftirqd/200:25:012
19222993934,3cyclictest33-21ksoftirqd/220:40:242
1922299391,3cyclictest121rcu_preempt00:40:002
1922199394,4cyclictest25-21ksoftirqd/120:30:301
19221993934,3cyclictest25-21ksoftirqd/119:35:131
19221993934,3cyclictest16845-21grep00:39:591
1922199392,3cyclictest25-21ksoftirqd/120:50:181
19221993921,8cyclictest25-21ksoftirqd/123:55:181
1922199391,4cyclictest25-21ksoftirqd/123:25:241
1922199391,4cyclictest25-21ksoftirqd/122:55:121
1922199391,4cyclictest25-21ksoftirqd/122:40:231
1922199391,4cyclictest25-21ksoftirqd/100:15:241
1922199391,3cyclictest25-21ksoftirqd/121:55:171
19221993910,4cyclictest25-21ksoftirqd/121:25:241
19220993932,4cyclictest9-21ksoftirqd/021:45:000
19220993932,4cyclictest9-21ksoftirqd/021:45:000
1922299383,5cyclictest33-21ksoftirqd/221:45:162
19222993831,4cyclictest33-21ksoftirqd/220:33:072
1922299380,2cyclictest121rcu_preempt21:35:152
1922199389,3cyclictest25-21ksoftirqd/120:30:001
1922199385,4cyclictest25-21ksoftirqd/119:40:141
1922199385,2cyclictest25-21ksoftirqd/123:10:201
1922199384,4cyclictest25-21ksoftirqd/119:10:191
1922199384,3cyclictest25-21ksoftirqd/123:35:221
19221993833,2cyclictest25-21ksoftirqd/119:55:001
1922199380,5cyclictest25-21ksoftirqd/123:05:171
139291380,0ptp4l401ktimersoftd/322:25:223
19223993732,3cyclictest41-21ksoftirqd/300:00:123
19223993731,4cyclictest41-21ksoftirqd/320:17:173
19223993731,4cyclictest41-21ksoftirqd/300:26:243
1922299373,6cyclictest33-21ksoftirqd/222:20:132
1922199379,6cyclictest25-21ksoftirqd/123:35:001
1922199376,6cyclictest25-21ksoftirqd/122:00:231
1922199374,3cyclictest121rcu_preempt19:15:241
1922199374,2cyclictest121rcu_preempt21:00:201
19221993732,3cyclictest25-21ksoftirqd/123:25:001
19221993732,3cyclictest25-21ksoftirqd/120:05:181
19221993730,4cyclictest25-21ksoftirqd/100:14:321
1922199371,5cyclictest25-21ksoftirqd/120:20:181
1922199371,4cyclictest25-21ksoftirqd/122:35:241
19221993711,7cyclictest25-21ksoftirqd/122:20:001
1922199370,7cyclictest25-21ksoftirqd/119:55:231
19223993631,3cyclictest41-21ksoftirqd/320:13:233
19223993630,4cyclictest41-21ksoftirqd/323:56:573
19223993630,4cyclictest41-21ksoftirqd/323:47:343
19223993630,4cyclictest41-21ksoftirqd/323:05:423
19223993630,4cyclictest41-21ksoftirqd/322:31:243
19223993630,4cyclictest41-21ksoftirqd/321:00:093
19223993630,4cyclictest41-21ksoftirqd/320:54:073
1922199368,3cyclictest25-21ksoftirqd/120:39:081
1922199365,3cyclictest121rcu_preempt23:15:201
1922199364,2cyclictest121rcu_preempt21:05:161
19221993632,2cyclictest25-21ksoftirqd/122:10:131
19221993632,2cyclictest25-21ksoftirqd/121:30:221
19221993632,2cyclictest25-21ksoftirqd/120:40:011
19221993631,3cyclictest25-21ksoftirqd/122:05:121
19221993631,3cyclictest25-21ksoftirqd/121:35:171
19221993631,3cyclictest25-21ksoftirqd/121:20:271
19221993631,3cyclictest25-21ksoftirqd/121:15:011
19221993631,3cyclictest25-21ksoftirqd/120:15:261
19221993631,3cyclictest25-21ksoftirqd/119:35:001
19221993631,2cyclictest25-21ksoftirqd/122:45:271
19221993630,4cyclictest25-21ksoftirqd/120:56:021
19220993631,3cyclictest9-21ksoftirqd/000:05:110
19220993630,4cyclictest9-21ksoftirqd/021:30:550
19220993629,4cyclictest9-21ksoftirqd/023:22:150
19223993530,3cyclictest41-21ksoftirqd/322:42:033
19223993530,3cyclictest41-21ksoftirqd/322:21:173
19223993530,3cyclictest41-21ksoftirqd/322:06:183
19223993530,3cyclictest41-21ksoftirqd/321:57:593
19223993529,4cyclictest41-21ksoftirqd/320:47:283
19223993529,4cyclictest41-21ksoftirqd/319:52:013
19222993530,3cyclictest33-21ksoftirqd/221:10:112
19222993529,3cyclictest33-21ksoftirqd/221:00:142
1922199356,4cyclictest25-21ksoftirqd/100:20:211
19221993531,3cyclictest25-21ksoftirqd/119:25:101
19221993530,3cyclictest25-21ksoftirqd/100:25:221
19221993529,4cyclictest25-21ksoftirqd/119:20:541
19221993529,3cyclictest25-21ksoftirqd/120:00:161
19221993529,3cyclictest25-21ksoftirqd/100:30:251
19220993530,3cyclictest9-21ksoftirqd/021:09:160
19220993529,4cyclictest9-21ksoftirqd/022:07:580
19220993529,4cyclictest9-21ksoftirqd/020:32:050
19220993529,4cyclictest9-21ksoftirqd/020:04:420
19220993529,4cyclictest9-21ksoftirqd/000:35:010
139291350,1ptp4l391rcuc/323:35:293
19223993429,3cyclictest41-21ksoftirqd/321:37:433
19223993429,3cyclictest41-21ksoftirqd/320:35:543
19223993429,3cyclictest41-21ksoftirqd/319:12:243
19223993428,4cyclictest41-21ksoftirqd/323:44:093
19223993428,4cyclictest41-21ksoftirqd/320:04:413
19223993428,4cyclictest41-21ksoftirqd/319:15:103
19223993428,4cyclictest41-21ksoftirqd/300:21:113
19221993429,3cyclictest25-21ksoftirqd/120:10:211
19221993429,3cyclictest25-21ksoftirqd/119:45:131
19221993429,2cyclictest25-21ksoftirqd/123:45:221
19220993429,3cyclictest9-21ksoftirqd/023:33:570
19220993429,3cyclictest9-21ksoftirqd/020:42:290
19220993428,4cyclictest9-21ksoftirqd/022:46:090
19220993428,4cyclictest9-21ksoftirqd/021:37:450
19220993428,4cyclictest9-21ksoftirqd/020:56:450
19220993428,4cyclictest9-21ksoftirqd/019:54:140
19220993427,4cyclictest9-21ksoftirqd/022:22:540
41298330,1rtkit-daemon411-21rtkit-daemon22:51:440
19223993328,3cyclictest41-21ksoftirqd/323:22:193
19223993328,3cyclictest41-21ksoftirqd/320:33:533
19223993328,3cyclictest41-21ksoftirqd/320:23:053
19223993328,3cyclictest41-21ksoftirqd/319:35:043
19223993328,3cyclictest41-21ksoftirqd/319:21:563
19223993328,3cyclictest41-21ksoftirqd/300:14:253
19223993327,4cyclictest41-21ksoftirqd/323:29:133
19223993327,4cyclictest41-21ksoftirqd/322:47:363
1922399330,31cyclictest0-21swapper/321:52:443
1922199334,3cyclictest121rcu_preempt22:50:231
19221993328,3cyclictest25-21ksoftirqd/121:42:261
19221993328,3cyclictest25-21ksoftirqd/121:42:261
19221993328,2cyclictest25-21ksoftirqd/122:25:121
19220993327,4cyclictest9-21ksoftirqd/023:48:340
19220993327,4cyclictest9-21ksoftirqd/023:37:470
19220993327,4cyclictest9-21ksoftirqd/023:25:450
19220993327,4cyclictest9-21ksoftirqd/022:12:110
19223993227,3cyclictest41-21ksoftirqd/322:36:423
19223993227,3cyclictest41-21ksoftirqd/321:20:513
19223993227,3cyclictest41-21ksoftirqd/321:15:423
19223993227,3cyclictest41-21ksoftirqd/319:49:313
19223993227,3cyclictest41-21ksoftirqd/300:34:023
19223993226,3cyclictest41-21ksoftirqd/323:20:013
19220993227,3cyclictest9-21ksoftirqd/023:10:470
19220993227,3cyclictest9-21ksoftirqd/023:01:540
19220993227,3cyclictest9-21ksoftirqd/021:22:030
19220993227,3cyclictest9-21ksoftirqd/020:08:240
19220993227,3cyclictest9-21ksoftirqd/019:27:270
19220993226,4cyclictest9-21ksoftirqd/023:52:070
19220993226,4cyclictest9-21ksoftirqd/022:19:010
19220993226,4cyclictest9-21ksoftirqd/021:45:020
19220993226,4cyclictest9-21ksoftirqd/021:11:520
19220993226,4cyclictest9-21ksoftirqd/019:47:250
19220993226,3cyclictest9-21ksoftirqd/020:27:040
19223993126,3cyclictest41-21ksoftirqd/322:18:333
19223993126,3cyclictest41-21ksoftirqd/322:00:563
19223993126,3cyclictest41-21ksoftirqd/300:15:453
19223993125,4cyclictest41-21ksoftirqd/322:57:263
19223993125,4cyclictest41-21ksoftirqd/321:42:293
19223993125,4cyclictest41-21ksoftirqd/321:42:293
19220993126,3cyclictest9-21ksoftirqd/020:49:390
19220993126,3cyclictest9-21ksoftirqd/020:38:440
19220993126,3cyclictest9-21ksoftirqd/019:35:120
19220993126,3cyclictest9-21ksoftirqd/000:02:220
19220993125,4cyclictest9-21ksoftirqd/022:56:560
19220993125,4cyclictest9-21ksoftirqd/000:34:530
139291310,0ptp4l401ktimersoftd/323:13:423
19223993025,3cyclictest41-21ksoftirqd/321:14:293
19223993025,3cyclictest41-21ksoftirqd/320:05:103
19223993025,3cyclictest41-21ksoftirqd/319:57:393
19223993025,3cyclictest41-21ksoftirqd/300:06:083
19223993024,4cyclictest41-21ksoftirqd/322:53:573
19220993025,3cyclictest9-21ksoftirqd/022:27:020
19220993025,3cyclictest9-21ksoftirqd/019:42:230
19220993024,4cyclictest9-21ksoftirqd/021:58:420
19220993024,4cyclictest9-21ksoftirqd/020:14:370
19220993024,4cyclictest9-21ksoftirqd/019:16:280
19220993024,4cyclictest9-21ksoftirqd/000:23:250
139291300,0ptp4l401ktimersoftd/321:26:123
19223992924,3cyclictest41-21ksoftirqd/319:26:293
19220992924,3cyclictest9-21ksoftirqd/022:02:560
19220992924,3cyclictest9-21ksoftirqd/000:18:180
19220992923,4cyclictest9-21ksoftirqd/023:09:030
19220992923,4cyclictest9-21ksoftirqd/022:37:410
19220992923,4cyclictest9-21ksoftirqd/021:04:150
19223992823,3cyclictest41-21ksoftirqd/320:56:293
19223992823,3cyclictest41-21ksoftirqd/320:40:193
19223992823,3cyclictest41-21ksoftirqd/320:28:313
19220992823,3cyclictest9-21ksoftirqd/020:21:110
19220992823,3cyclictest9-21ksoftirqd/019:10:260
19223992722,3cyclictest41-21ksoftirqd/321:46:163
19220992722,3cyclictest9-21ksoftirqd/023:59:090
19220992721,4cyclictest9-21ksoftirqd/021:16:140
19220992621,3cyclictest9-21ksoftirqd/022:30:550
19220992621,3cyclictest9-21ksoftirqd/021:53:210
19220992621,3cyclictest9-21ksoftirqd/021:27:580
19220992621,3cyclictest9-21ksoftirqd/019:33:370
19220992620,4cyclictest9-21ksoftirqd/020:19:500
19220992620,4cyclictest9-21ksoftirqd/000:26:220
19220992521,2cyclictest9-21ksoftirqd/019:22:190
19220992520,3cyclictest9-21ksoftirqd/023:44:530
19220992318,3cyclictest9-21ksoftirqd/022:40:120
19220991712,3cyclictest9213-21if_err_enp4s023:15:170
19220991712,3cyclictest9046-21expr19:55:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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