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2026-04-05 - 11:55
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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 all highest latencies:
System rackdslot2.osadl.org (updated Sun Apr 05, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219552233168,23sleep20-21swapper/219:08:002
139591208174,22phc2sys0-21swapper/319:09:163
219002206141,21sleep10-21swapper/119:07:181
217862202168,22sleep00-21swapper/019:05:530
22401996524,4cyclictest9-21ksoftirqd/000:35:160
22401996430,5cyclictest9-21ksoftirqd/019:55:250
22401996327,3cyclictest9-21ksoftirqd/023:45:230
22401996231,4cyclictest9-21ksoftirqd/022:15:210
22401996230,4cyclictest9-21ksoftirqd/022:30:180
22401996129,4cyclictest9-21ksoftirqd/022:10:010
22401996128,5cyclictest9-21ksoftirqd/023:00:100
22401996126,5cyclictest9-21ksoftirqd/021:35:150
22401996126,4cyclictest9-21ksoftirqd/021:00:210
22401996126,4cyclictest9-21ksoftirqd/020:45:270
22401996123,4cyclictest9-21ksoftirqd/020:05:140
22401996029,10cyclictest9-21ksoftirqd/023:35:180
22401996027,4cyclictest9-21ksoftirqd/022:45:160
22401996021,4cyclictest9-21ksoftirqd/021:30:270
22401995927,3cyclictest9-21ksoftirqd/022:00:250
22401995921,4cyclictest9-21ksoftirqd/022:35:140
22401995920,3cyclictest9-21ksoftirqd/020:10:210
22401995826,8cyclictest9-21ksoftirqd/022:25:180
139291570,1ptp4l401ktimersoftd/323:58:563
2240199566,9cyclictest9-21ksoftirqd/000:15:150
2240199566,10cyclictest9-21ksoftirqd/021:25:000
22401995627,5cyclictest9-21ksoftirqd/023:05:180
22401995619,9cyclictest9-21ksoftirqd/019:35:250
139291560,1ptp4l401ktimersoftd/322:16:373
139291560,1ptp4l401ktimersoftd/319:53:553
22401995521,4cyclictest9-21ksoftirqd/020:50:270
22401995519,8cyclictest9-21ksoftirqd/021:50:200
2240299539,5cyclictest25-21ksoftirqd/120:20:191
22402995319,3cyclictest25-21ksoftirqd/119:14:141
2240199534,7cyclictest9-21ksoftirqd/023:20:260
2240199533,9cyclictest31206-21sendmail-msp00:00:010
2240199531,9cyclictest9-21ksoftirqd/020:20:170
2240199531,9cyclictest9-21ksoftirqd/000:00:180
22401995228,4cyclictest9-21ksoftirqd/022:10:160
22401995224,3cyclictest9-21ksoftirqd/019:10:250
2240299517,7cyclictest25-21ksoftirqd/122:15:241
2240299515,6cyclictest28340-21grep23:50:291
2240199515,7cyclictest9-21ksoftirqd/023:50:150
2240199510,9cyclictest9-21ksoftirqd/021:40:120
2240299505,6cyclictest9655-21sed22:05:191
22402995011,6cyclictest25-21ksoftirqd/119:40:381
2240199506,4cyclictest9-21ksoftirqd/020:30:270
22401995035,3cyclictest9-21ksoftirqd/023:25:140
2240199502,6cyclictest9-21ksoftirqd/019:40:180
2240199501,9cyclictest9-21ksoftirqd/000:25:200
2240199500,6cyclictest9-21ksoftirqd/021:15:190
2240199500,5cyclictest9-21ksoftirqd/022:20:190
2240299498,5cyclictest25-21ksoftirqd/121:50:261
2240299495,6cyclictest31343-21cut20:35:181
22402994919,9cyclictest25-21ksoftirqd/123:37:461
22402994919,9cyclictest25-21ksoftirqd/121:17:211
22402994918,4cyclictest25-21ksoftirqd/121:46:261
2240199496,4cyclictest9-21ksoftirqd/021:25:140
2240199493,5cyclictest9-21ksoftirqd/020:40:120
2240199492,5cyclictest9-21ksoftirqd/000:25:000
2240199491,8cyclictest9-21ksoftirqd/023:10:230
2240199486,3cyclictest9-21ksoftirqd/023:45:000
2240199485,4cyclictest9-21ksoftirqd/020:55:150
2240199483,5cyclictest9-21ksoftirqd/021:05:190
2240199482,9cyclictest9-21ksoftirqd/020:05:000
2240199482,8cyclictest9-21ksoftirqd/020:35:120
2240199482,10cyclictest9-21ksoftirqd/019:50:260
2240199481,6cyclictest9-21ksoftirqd/023:20:010
2240199481,6cyclictest9-21ksoftirqd/021:10:250
2240199480,7cyclictest9-21ksoftirqd/020:25:190
2240299475,7cyclictest12832-21awk23:20:141
2240299474,11cyclictest16235-21expr22:20:131
2240199476,3cyclictest9-21ksoftirqd/023:30:130
2240199474,4cyclictest9-21ksoftirqd/000:10:230
22403994641,3cyclictest18364-21cron20:10:002
22403994632,12cyclictest33-21ksoftirqd/222:35:002
2240299467,6cyclictest25-21ksoftirqd/123:40:241
2240299466,7cyclictest28271-21cpuspeed_turbos20:30:141
2240299464,6cyclictest30827-21timerandwakeup21:40:241
22402994611,4cyclictest25-21ksoftirqd/119:30:151
2240199464,4cyclictest9-21ksoftirqd/019:25:180
2240199463,5cyclictest9-21ksoftirqd/021:45:150
2240199462,9cyclictest9-21ksoftirqd/022:50:180
2240199462,8cyclictest9-21ksoftirqd/000:30:240
22401994628,8cyclictest9-21ksoftirqd/022:55:130
22401994619,4cyclictest9-21ksoftirqd/019:31:100
2240299453,7cyclictest8011-21sed00:15:271
2240299452,6cyclictest241ktimersoftd/119:20:141
2240299452,5cyclictest241ktimersoftd/123:55:231
22402994519,9cyclictest25-21ksoftirqd/122:25:181
2240299451,6cyclictest713-21df_abs22:55:131
22402994514,6cyclictest25-21ksoftirqd/122:45:211
2240199454,9cyclictest9-21ksoftirqd/000:05:170
2240199451,6cyclictest9-21ksoftirqd/019:47:170
2240299444,7cyclictest25634-21cat22:40:121
2240299443,6cyclictest7501-21/usr/sbin/munin22:00:211
2240199446,4cyclictest9-21ksoftirqd/019:17:140
2240199441,10cyclictest9-21ksoftirqd/020:15:160
2240299433,7cyclictest4256-21grep20:45:241
2240299432,5cyclictest241ktimersoftd/119:25:161
22402994319,3cyclictest25-21ksoftirqd/120:43:281
2240199432,10cyclictest9-21ksoftirqd/022:40:130
2240199430,6cyclictest9-21ksoftirqd/019:20:200
2240499421,38cyclictest2682-21cron20:45:003
2240299423,6cyclictest241ktimersoftd/123:15:131
2240299421,5cyclictest15306-21/usr/sbin/munin23:25:161
2240299420,6cyclictest241ktimersoftd/123:05:261
139291420,2ptp4l15823-21kworker/3:020:14:283
139291420,0ptp4l401ktimersoftd/320:59:503
22403994112,28cyclictest0-21swapper/219:40:352
2240299418,3cyclictest25-21ksoftirqd/119:20:001
2240299417,6cyclictest25-21ksoftirqd/123:00:131
2240299416,5cyclictest25-21ksoftirqd/120:05:241
2240299414,6cyclictest3536-21readlink00:07:291
2240299414,6cyclictest21886-21/usr/sbin/munin22:30:221
2240299414,5cyclictest241ktimersoftd/119:35:161
22402994120,4cyclictest25-21ksoftirqd/119:50:081
2240299410,5cyclictest14953-21latency_hist21:10:011
139291410,0ptp4l401ktimersoftd/321:41:093
139291410,0ptp4l401ktimersoftd/321:05:163
2240399400,38cyclictest0-21swapper/221:55:252
2240299408,6cyclictest25-21ksoftirqd/121:25:251
2240299407,6cyclictest25-21ksoftirqd/122:10:111
2240299406,5cyclictest25-21ksoftirqd/123:30:251
2240299406,5cyclictest25-21ksoftirqd/123:10:311
2240299406,5cyclictest25-21ksoftirqd/120:10:261
2240299405,7cyclictest25-21ksoftirqd/120:25:261
2240299403,6cyclictest241ktimersoftd/123:45:141
2240299402,5cyclictest241ktimersoftd/120:00:171
2240299401,6cyclictest241ktimersoftd/100:20:181
22402994013,6cyclictest25-21ksoftirqd/120:17:491
22402994011,3cyclictest25-21ksoftirqd/120:53:141
139291400,1ptp4l401ktimersoftd/322:10:463
2240299395,3cyclictest25-21ksoftirqd/121:10:161
2240299394,7cyclictest15885-21grep00:35:121
2240299391,6cyclictest8402sleep100:01:351
139291390,1ptp4l401ktimersoftd/322:29:583
139291390,0ptp4l401ktimersoftd/319:45:283
22404993833,3cyclictest41-21ksoftirqd/323:35:103
22404993832,4cyclictest41-21ksoftirqd/321:03:263
22404993832,4cyclictest41-21ksoftirqd/320:25:023
22404993832,4cyclictest41-21ksoftirqd/320:18:293
2240299388,3cyclictest25-21ksoftirqd/121:22:201
2240199382,9cyclictest9-21ksoftirqd/021:55:130
22404993732,3cyclictest41-21ksoftirqd/319:39:483
22404993731,4cyclictest41-21ksoftirqd/323:46:573
22404993731,4cyclictest41-21ksoftirqd/323:14:023
22404993731,4cyclictest41-21ksoftirqd/323:07:373
22404993731,4cyclictest41-21ksoftirqd/322:24:533
22404993731,4cyclictest41-21ksoftirqd/321:31:423
22404993731,3cyclictest41-21ksoftirqd/320:30:103
22404993730,5cyclictest41-21ksoftirqd/319:30:003
2240399379,26cyclictest8338-21kworker/2:123:30:252
22403993732,3cyclictest33-21ksoftirqd/219:55:122
22403993732,3cyclictest33-21ksoftirqd/219:27:162
22403993732,3cyclictest33-21ksoftirqd/219:15:112
22403993731,4cyclictest33-21ksoftirqd/223:07:042
22403993731,4cyclictest33-21ksoftirqd/222:26:082
22403993731,4cyclictest33-21ksoftirqd/221:17:402
2240299374,6cyclictest25-21ksoftirqd/121:00:141
2240299373,5cyclictest5234-21awk21:55:211
2240299372,6cyclictest111162sleep100:25:021
2240299370,10cyclictest28033-21/usr/sbin/munin21:35:221
22404993632,3cyclictest41-21ksoftirqd/300:30:133
22404993631,3cyclictest41-21ksoftirqd/321:10:133
22404993630,4cyclictest41-21ksoftirqd/300:09:113
22403993630,4cyclictest33-21ksoftirqd/220:29:102
2240299363,5cyclictest31410-21nfs4_client22:50:221
22404993530,3cyclictest41-21ksoftirqd/322:57:103
22404993529,4cyclictest41-21ksoftirqd/319:33:483
22404993529,4cyclictest41-21ksoftirqd/300:14:453
22404993529,3cyclictest1668-21egrep21:50:133
2240499352,3cyclictest121rcu_preempt20:00:263
22403993529,4cyclictest33-21ksoftirqd/223:38:412
22403993529,4cyclictest33-21ksoftirqd/222:19:382
22403993529,4cyclictest33-21ksoftirqd/221:52:272
22403993529,4cyclictest33-21ksoftirqd/221:46:492
22403993529,4cyclictest33-21ksoftirqd/221:02:002
22403993529,4cyclictest33-21ksoftirqd/220:03:192
22403993529,4cyclictest33-21ksoftirqd/219:14:252
22403993529,4cyclictest33-21ksoftirqd/200:22:582
22404993429,3cyclictest41-21ksoftirqd/323:24:303
22404993429,3cyclictest41-21ksoftirqd/319:12:143
22404993428,4cyclictest41-21ksoftirqd/323:26:593
22404993428,4cyclictest41-21ksoftirqd/320:40:003
22404993428,3cyclictest29310-21cron19:25:013
22404993427,4cyclictest41-21ksoftirqd/323:30:123
22404993427,4cyclictest41-21ksoftirqd/321:46:583
22403993429,3cyclictest33-21ksoftirqd/223:42:452
22403993429,3cyclictest33-21ksoftirqd/223:04:192
22403993429,3cyclictest33-21ksoftirqd/222:59:362
22403993429,3cyclictest33-21ksoftirqd/222:50:582
22403993429,3cyclictest33-21ksoftirqd/222:20:372
22403993429,3cyclictest33-21ksoftirqd/221:26:012
22403993429,3cyclictest33-21ksoftirqd/220:20:042
22403993429,3cyclictest33-21ksoftirqd/220:12:092
22403993429,3cyclictest33-21ksoftirqd/200:08:062
22403993428,4cyclictest33-21ksoftirqd/223:15:312
22403993428,4cyclictest33-21ksoftirqd/222:02:502
22403993428,4cyclictest33-21ksoftirqd/221:10:342
22403993428,4cyclictest33-21ksoftirqd/219:46:582
22402993429,3cyclictest25-21ksoftirqd/100:30:151
2240299342,4cyclictest25-21ksoftirqd/120:57:571
2240299341,5cyclictest25-21ksoftirqd/119:58:311
22404993328,3cyclictest41-21ksoftirqd/323:15:493
22404993328,3cyclictest41-21ksoftirqd/323:01:213
22404993328,3cyclictest41-21ksoftirqd/322:30:113
22404993328,3cyclictest41-21ksoftirqd/321:20:003
22404993328,3cyclictest41-21ksoftirqd/319:15:223
22404993327,4cyclictest41-21ksoftirqd/323:53:073
22404993327,4cyclictest41-21ksoftirqd/322:46:513
22404993327,4cyclictest41-21ksoftirqd/322:07:563
22403993328,3cyclictest33-21ksoftirqd/223:27:102
22403993328,3cyclictest33-21ksoftirqd/221:21:112
22403993328,3cyclictest33-21ksoftirqd/221:08:132
22403993328,3cyclictest33-21ksoftirqd/220:57:532
22403993327,4cyclictest33-21ksoftirqd/223:51:292
22403993327,4cyclictest33-21ksoftirqd/223:13:342
22403993327,4cyclictest33-21ksoftirqd/222:46:022
22403993327,4cyclictest33-21ksoftirqd/219:50:322
139291330,11ptp4l401ktimersoftd/321:38:593
22404993227,3cyclictest41-21ksoftirqd/323:40:083
22404993227,3cyclictest41-21ksoftirqd/322:52:143
22404993227,3cyclictest41-21ksoftirqd/322:35:333
22404993227,3cyclictest41-21ksoftirqd/321:59:153
22404993227,3cyclictest41-21ksoftirqd/320:00:003
22404993227,3cyclictest41-21ksoftirqd/319:43:473
22404993226,4cyclictest41-21ksoftirqd/320:51:383
22404993226,4cyclictest41-21ksoftirqd/300:04:183
22403993228,3cyclictest33-21ksoftirqd/222:11:092
22403993227,3cyclictest33-21ksoftirqd/222:39:242
22403993227,3cyclictest33-21ksoftirqd/222:05:422
22403993227,3cyclictest33-21ksoftirqd/219:36:412
22403993226,4cyclictest33-21ksoftirqd/223:58:272
22403993226,4cyclictest33-21ksoftirqd/223:24:252
22403993226,4cyclictest33-21ksoftirqd/221:34:582
22403993226,4cyclictest33-21ksoftirqd/200:38:432
22403993226,4cyclictest33-21ksoftirqd/200:17:252
22403993225,4cyclictest33-21ksoftirqd/220:53:252
22402993227,3cyclictest25-21ksoftirqd/119:47:251
22404993126,3cyclictest41-21ksoftirqd/322:04:403
22404993126,3cyclictest41-21ksoftirqd/321:29:183
22404993126,3cyclictest41-21ksoftirqd/321:22:203
22404993125,4cyclictest41-21ksoftirqd/320:49:453
22404993125,4cyclictest41-21ksoftirqd/320:05:493
22403993127,3cyclictest33-21ksoftirqd/221:41:092
22403993126,3cyclictest33-21ksoftirqd/220:44:382
22403993126,3cyclictest33-21ksoftirqd/220:30:132
22403993126,3cyclictest33-21ksoftirqd/219:34:182
22403993125,4cyclictest33-21ksoftirqd/200:28:112
22402993128,2cyclictest25-21ksoftirqd/100:15:001
22402993126,3cyclictest25-21ksoftirqd/121:30:281
22403993025,3cyclictest33-21ksoftirqd/221:37:352
22403993025,3cyclictest33-21ksoftirqd/200:10:212
22403993024,4cyclictest33-21ksoftirqd/219:21:432
22403993024,4cyclictest33-21ksoftirqd/200:31:412
2240299307,5cyclictest25-21ksoftirqd/122:35:121
139291300,0ptp4l401ktimersoftd/322:40:243
139291300,0ptp4l401ktimersoftd/300:28:483
22404992924,3cyclictest41-21ksoftirqd/300:18:313
22404992923,4cyclictest41-21ksoftirqd/320:20:373
22404992923,3cyclictest41-21ksoftirqd/300:40:003
22403992924,3cyclictest33-21ksoftirqd/200:02:132
22403992923,4cyclictest33-21ksoftirqd/220:17:432
22404992822,4cyclictest41-21ksoftirqd/300:24:523
22403992823,3cyclictest33-21ksoftirqd/220:50:002
22403992822,4cyclictest33-21ksoftirqd/220:37:302
22403992520,3cyclictest33-21ksoftirqd/223:46:182
22403992419,3cyclictest33-21ksoftirqd/222:44:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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