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2026-06-28 - 12:46
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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 rackdslot3.osadl.org (updated Sun Jun 28, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293672228163,21sleep20-21swapper/219:08:382
293712207173,22sleep10-21swapper/119:08:411
139491205172,22phc2sys0-21swapper/319:05:363
273432200167,22sleep00-21swapper/019:05:110
2485021500,6sleep12976499cyclictest20:05:211
139391770,1ptp4l391rcuc/322:40:233
170302690,2sleep10-21swapper/120:55:241
139391680,1ptp4l391rcuc/322:15:253
29766996526,8cyclictest41-21ksoftirqd/319:40:173
22682620,7sleep22976599cyclictest19:20:132
75442610,3sleep02976399cyclictest00:00:010
61032610,2sleep20-21swapper/221:40:222
29766996025,7cyclictest41-21ksoftirqd/319:20:143
29766995922,4cyclictest41-21ksoftirqd/319:55:143
89212580,2sleep30-21swapper/320:40:173
2976699576,6cyclictest31384-21dpkg22:35:003
29766995722,10cyclictest41-21ksoftirqd/322:35:103
29763995622,8cyclictest9-21ksoftirqd/021:15:000
139391540,46ptp4l0-21swapper/319:10:003
139391540,46ptp4l0-21swapper/319:10:003
29766995322,10cyclictest41-21ksoftirqd/319:40:013
2976699520,10cyclictest1342-21apache219:45:243
2976399516,4cyclictest9-21ksoftirqd/022:25:190
29763995013,6cyclictest9-21ksoftirqd/022:35:240
29763994921,7cyclictest9-21ksoftirqd/022:30:140
215212490,1sleep20-21swapper/220:00:132
29766994818,3cyclictest41-21ksoftirqd/323:43:323
29766994817,8cyclictest41-21ksoftirqd/322:25:103
2976699450,12cyclictest41-21ksoftirqd/320:55:143
29765994540,3cyclictest16886-21fschecks_count19:50:152
2976699442,39cyclictest5731-21fschecks_count23:55:163
2976699441,15cyclictest29807-21tail23:35:273
2976399447,3cyclictest9-21ksoftirqd/020:30:280
29763994433,2cyclictest9-21ksoftirqd/021:35:260
29763994414,4cyclictest9-21ksoftirqd/020:05:140
29763994414,4cyclictest9-21ksoftirqd/019:20:240
139391440,0ptp4l401ktimersoftd/322:20:243
2976699432,6cyclictest8015-21/usr/sbin/munin22:50:263
29763994337,4cyclictest9-21ksoftirqd/021:50:140
29763994316,7cyclictest9-21ksoftirqd/023:55:010
29763994314,7cyclictest9-21ksoftirqd/020:55:240
29763994310,4cyclictest9-21ksoftirqd/023:15:010
2976399429,6cyclictest9-21ksoftirqd/000:25:140
2976399428,4cyclictest9-21ksoftirqd/021:50:010
2976399427,3cyclictest9-21ksoftirqd/021:05:290
2976399424,2cyclictest121rcu_preempt20:35:230
29763994216,7cyclictest9-21ksoftirqd/021:15:240
29763994214,7cyclictest9-21ksoftirqd/019:50:140
29763994213,3cyclictest9-21ksoftirqd/021:25:150
139391420,0ptp4l401ktimersoftd/323:23:573
139391420,0ptp4l401ktimersoftd/321:25:143
139391420,0ptp4l401ktimersoftd/320:22:133
139391420,0ptp4l401ktimersoftd/320:10:253
2976699415,5cyclictest41-21ksoftirqd/300:10:173
2976699414,6cyclictest22623-21cat21:10:003
2976399419,4cyclictest9-21ksoftirqd/000:05:270
2976399417,2cyclictest9-21ksoftirqd/022:45:270
2976399416,6cyclictest9-21ksoftirqd/020:45:140
2976399416,3cyclictest9-21ksoftirqd/020:50:160
2976399414,7cyclictest9-21ksoftirqd/000:25:010
29763994136,2cyclictest9-21ksoftirqd/020:19:590
2976399411,6cyclictest9-21ksoftirqd/023:35:250
2976399411,4cyclictest9-21ksoftirqd/022:00:180
29763994112,7cyclictest9-21ksoftirqd/019:30:130
29763994112,3cyclictest9-21ksoftirqd/023:25:010
29763994111,6cyclictest9-21ksoftirqd/023:30:010
2976399410,6cyclictest9-21ksoftirqd/023:00:180
139391410,0ptp4l401ktimersoftd/321:24:523
2976699408,6cyclictest41-21ksoftirqd/323:25:193
2976699402,7cyclictest41-21ksoftirqd/300:04:233
29766994019,7cyclictest41-21ksoftirqd/323:32:503
2976599402,37cyclictest8832-21kworker/2:119:35:332
2976399409,4cyclictest9-21ksoftirqd/000:30:270
2976399408,4cyclictest9-21ksoftirqd/021:55:190
2976399407,3cyclictest9-21ksoftirqd/019:45:210
2976399407,2cyclictest9-21ksoftirqd/023:30:250
2976399406,2cyclictest9-21ksoftirqd/020:20:290
2976399405,2cyclictest121rcu_preempt00:35:200
2976399404,5cyclictest9-21ksoftirqd/020:40:240
2976399404,2cyclictest121rcu_preempt21:30:150
2976399403,6cyclictest9-21ksoftirqd/023:50:010
2976399403,5cyclictest9-21ksoftirqd/019:15:180
29763994031,3cyclictest9-21ksoftirqd/022:45:000
2976399402,6cyclictest9-21ksoftirqd/022:50:250
2976399402,6cyclictest9-21ksoftirqd/000:15:270
2976399402,5cyclictest9-21ksoftirqd/019:25:270
29763994014,7cyclictest9-21ksoftirqd/020:00:170
29763994011,4cyclictest9-21ksoftirqd/021:40:270
29766993933,3cyclictest8104-21dump-pmu-power20:40:013
29766993923,7cyclictest41-21ksoftirqd/321:55:233
2976399399,4cyclictest9-21ksoftirqd/022:55:140
2976399396,2cyclictest9-21ksoftirqd/022:15:120
2976399395,2cyclictest121rcu_preempt23:05:140
2976399395,2cyclictest121rcu_preempt23:05:140
2976399392,6cyclictest9-21ksoftirqd/019:55:150
29763993912,7cyclictest9-21ksoftirqd/023:40:140
2976699383,5cyclictest41-21ksoftirqd/320:45:023
29764993833,3cyclictest25-21ksoftirqd/100:00:001
2976399387,3cyclictest9-21ksoftirqd/000:00:170
2976399382,2cyclictest121rcu_preempt21:20:140
2976399381,6cyclictest9-21ksoftirqd/022:05:150
2976399381,5cyclictest9-21ksoftirqd/020:25:170
2976699376,2cyclictest41-21ksoftirqd/322:00:113
2976699373,5cyclictest41-21ksoftirqd/321:15:203
29766993731,4cyclictest41-21ksoftirqd/321:41:183
2976699371,5cyclictest41-21ksoftirqd/320:33:383
29764993732,3cyclictest25-21ksoftirqd/123:44:591
29764993731,4cyclictest25-21ksoftirqd/119:45:391
29763993732,3cyclictest9-21ksoftirqd/022:25:010
29763993732,3cyclictest9-21ksoftirqd/000:10:130
2976399371,6cyclictest9-21ksoftirqd/019:35:180
139391370,0ptp4l401ktimersoftd/320:00:193
2976699366,5cyclictest41-21ksoftirqd/320:50:143
2976699365,5cyclictest41-21ksoftirqd/321:30:233
29766993618,7cyclictest41-21ksoftirqd/323:11:443
29766993618,10cyclictest41-21ksoftirqd/321:49:083
29765993631,3cyclictest33-21ksoftirqd/223:18:242
29765993630,4cyclictest33-21ksoftirqd/223:41:212
29765993630,4cyclictest33-21ksoftirqd/221:48:202
29764993631,3cyclictest25-21ksoftirqd/123:04:591
29764993631,3cyclictest25-21ksoftirqd/123:00:001
29764993630,4cyclictest25-21ksoftirqd/122:06:411
29764993630,4cyclictest25-21ksoftirqd/121:10:321
29764993630,4cyclictest25-21ksoftirqd/100:25:041
29764993629,4cyclictest25-21ksoftirqd/100:40:001
2976399369,3cyclictest9-21ksoftirqd/023:15:120
2976399368,7cyclictest9-21ksoftirqd/020:10:200
29763993631,3cyclictest9-21ksoftirqd/021:00:150
29766993530,4cyclictest41-21ksoftirqd/319:50:183
29766993522,6cyclictest41-21ksoftirqd/300:05:443
29766993522,4cyclictest41-21ksoftirqd/320:29:163
29766993522,3cyclictest41-21ksoftirqd/321:00:123
29766993516,5cyclictest41-21ksoftirqd/319:15:323
2976699351,4cyclictest41-21ksoftirqd/323:01:193
29765993530,3cyclictest33-21ksoftirqd/200:21:332
29765993530,3cyclictest33-21ksoftirqd/200:00:112
29765993529,4cyclictest33-21ksoftirqd/223:53:372
29764993530,3cyclictest25-21ksoftirqd/121:29:231
29764993529,4cyclictest25-21ksoftirqd/122:35:491
29764993529,4cyclictest25-21ksoftirqd/121:59:591
29764993529,4cyclictest25-21ksoftirqd/120:26:461
29764993529,4cyclictest25-21ksoftirqd/119:37:571
29764993529,4cyclictest25-21ksoftirqd/100:16:291
2976399357,7cyclictest9-21ksoftirqd/022:10:130
2976399353,4cyclictest9-21ksoftirqd/019:40:150
29763993531,2cyclictest9-21ksoftirqd/019:10:150
29763993531,2cyclictest9-21ksoftirqd/019:10:150
29766993421,4cyclictest41-21ksoftirqd/319:29:363
29766993419,7cyclictest41-21ksoftirqd/321:53:063
29765993429,3cyclictest33-21ksoftirqd/222:55:132
29765993429,3cyclictest33-21ksoftirqd/220:43:212
29765993429,3cyclictest33-21ksoftirqd/220:20:122
29765993428,4cyclictest33-21ksoftirqd/222:26:022
29765993428,4cyclictest33-21ksoftirqd/221:01:222
29765993428,4cyclictest33-21ksoftirqd/219:34:412
29765993428,4cyclictest33-21ksoftirqd/219:26:232
29765993428,3cyclictest33-21ksoftirqd/221:37:352
29765993428,3cyclictest33-21ksoftirqd/200:18:592
29764993429,3cyclictest25-21ksoftirqd/123:06:331
29764993429,3cyclictest25-21ksoftirqd/123:06:331
29764993428,4cyclictest25-21ksoftirqd/123:33:491
29764993428,4cyclictest25-21ksoftirqd/123:10:101
29764993428,4cyclictest25-21ksoftirqd/122:34:411
29764993428,4cyclictest25-21ksoftirqd/122:02:031
29764993428,4cyclictest25-21ksoftirqd/121:35:481
29764993428,4cyclictest25-21ksoftirqd/120:51:531
29764993428,4cyclictest25-21ksoftirqd/120:49:381
29764993428,4cyclictest25-21ksoftirqd/120:43:201
29764993428,4cyclictest25-21ksoftirqd/120:02:311
29764993428,4cyclictest25-21ksoftirqd/119:29:511
158742341,3sleep2121rcu_preempt22:00:242
29766993329,2cyclictest41-21ksoftirqd/323:05:273
29766993329,2cyclictest41-21ksoftirqd/323:05:273
29766993329,2cyclictest41-21ksoftirqd/320:05:243
29766993327,4cyclictest41-21ksoftirqd/320:19:153
29766993327,4cyclictest41-21ksoftirqd/319:33:103
29766993319,6cyclictest41-21ksoftirqd/322:58:213
2976699331,4cyclictest0-21swapper/323:50:233
29765993328,3cyclictest33-21ksoftirqd/223:59:282
29765993327,4cyclictest33-21ksoftirqd/223:08:322
29765993327,4cyclictest33-21ksoftirqd/223:08:322
29765993327,4cyclictest33-21ksoftirqd/222:42:402
29765993327,4cyclictest33-21ksoftirqd/222:24:512
29765993327,4cyclictest33-21ksoftirqd/221:12:102
29765993327,4cyclictest33-21ksoftirqd/219:15:112
29765993327,4cyclictest33-21ksoftirqd/200:37:412
29764993328,3cyclictest25-21ksoftirqd/122:45:131
29764993328,3cyclictest25-21ksoftirqd/120:40:011
29764993328,3cyclictest25-21ksoftirqd/119:57:251
29764993328,3cyclictest25-21ksoftirqd/100:31:591
29764993328,3cyclictest25-21ksoftirqd/100:06:561
29764993327,4cyclictest25-21ksoftirqd/123:17:481
29764993327,4cyclictest25-21ksoftirqd/122:22:411
29764993327,4cyclictest25-21ksoftirqd/121:45:461
29764993327,4cyclictest25-21ksoftirqd/119:31:551
29766993216,8cyclictest41-21ksoftirqd/300:25:253
29766993215,7cyclictest41-21ksoftirqd/323:18:223
2976699320,4cyclictest41-21ksoftirqd/322:09:553
29765993227,3cyclictest33-21ksoftirqd/222:11:082
29765993227,3cyclictest33-21ksoftirqd/220:47:452
29765993226,4cyclictest33-21ksoftirqd/223:10:402
29765993226,4cyclictest33-21ksoftirqd/222:07:182
29765993226,4cyclictest33-21ksoftirqd/221:34:272
29765993226,4cyclictest33-21ksoftirqd/221:26:222
29765993226,4cyclictest33-21ksoftirqd/221:22:452
29765993226,4cyclictest33-21ksoftirqd/220:30:112
29765993226,4cyclictest33-21ksoftirqd/220:29:132
29764993227,3cyclictest25-21ksoftirqd/121:42:081
29764993226,4cyclictest25-21ksoftirqd/123:48:451
29764993226,4cyclictest25-21ksoftirqd/122:52:061
29764993226,4cyclictest25-21ksoftirqd/121:54:571
29766993125,4cyclictest41-21ksoftirqd/323:49:443
29766993125,4cyclictest41-21ksoftirqd/300:37:113
2976699310,4cyclictest41-21ksoftirqd/321:11:393
29765993126,3cyclictest33-21ksoftirqd/222:15:092
29765993126,3cyclictest33-21ksoftirqd/220:55:132
29765993126,3cyclictest33-21ksoftirqd/220:05:442
29765993125,4cyclictest33-21ksoftirqd/222:48:462
29765993125,4cyclictest33-21ksoftirqd/219:13:392
29765993125,4cyclictest33-21ksoftirqd/219:13:392
29765993125,4cyclictest33-21ksoftirqd/200:10:172
29764993126,3cyclictest25-21ksoftirqd/119:40:241
29764993125,4cyclictest25-21ksoftirqd/121:07:391
29764993125,3cyclictest25-21ksoftirqd/122:15:061
29764993124,5cyclictest25-21ksoftirqd/121:20:351
2976699300,4cyclictest41-21ksoftirqd/321:35:243
2976599304,25cyclictest8832-21kworker/2:120:37:212
2976599303,25cyclictest8832-21kworker/2:121:09:532
2976599303,25cyclictest28583-21kworker/2:223:29:182
29765993025,3cyclictest33-21ksoftirqd/223:38:322
29765993024,4cyclictest33-21ksoftirqd/223:47:472
29765993024,4cyclictest33-21ksoftirqd/221:19:082
29765993024,4cyclictest33-21ksoftirqd/220:52:042
29765993024,4cyclictest33-21ksoftirqd/220:10:122
29764993026,3cyclictest25-21ksoftirqd/123:28:131
29764993025,3cyclictest25-21ksoftirqd/121:00:301
29764993024,4cyclictest25-21ksoftirqd/123:52:511
29764993024,4cyclictest25-21ksoftirqd/122:43:101
29764993024,4cyclictest25-21ksoftirqd/122:26:421
29764993024,4cyclictest25-21ksoftirqd/122:12:251
29764993024,4cyclictest25-21ksoftirqd/121:16:051
29764993024,4cyclictest25-21ksoftirqd/100:03:391
29766992923,4cyclictest41-21ksoftirqd/322:11:033
2976599293,25cyclictest8832-21kworker/2:119:49:252
2976599293,25cyclictest28583-21kworker/2:223:34:222
2976599293,25cyclictest28583-21kworker/2:200:09:132
29765992924,3cyclictest33-21ksoftirqd/222:50:562
29765992923,4cyclictest33-21ksoftirqd/223:02:172
29765992923,4cyclictest33-21ksoftirqd/222:31:322
29765992923,4cyclictest33-21ksoftirqd/220:19:022
29765992923,4cyclictest33-21ksoftirqd/200:28:062
29764992924,3cyclictest25-21ksoftirqd/123:22:571
29764992924,3cyclictest25-21ksoftirqd/120:17:041
29764992924,3cyclictest25-21ksoftirqd/119:21:451
29764992924,3cyclictest25-21ksoftirqd/119:17:541
29764992923,4cyclictest25-21ksoftirqd/100:21:511
139391290,0ptp4l401ktimersoftd/300:34:523
29766992825,2cyclictest41-21ksoftirqd/322:45:243
2976599283,24cyclictest8832-21kworker/2:121:55:202
29765992823,3cyclictest33-21ksoftirqd/223:21:212
29765992823,3cyclictest33-21ksoftirqd/200:34:442
2976599282,25cyclictest28583-21kworker/2:222:37:092
2976599280,2cyclictest121rcu_preempt19:41:362
29764992823,3cyclictest25-21ksoftirqd/100:10:561
29764992822,4cyclictest25-21ksoftirqd/123:37:501
29764992822,4cyclictest25-21ksoftirqd/120:21:101
29766992722,3cyclictest41-21ksoftirqd/300:15:263
2976599275,21cyclictest8832-21kworker/2:119:58:532
29764992722,3cyclictest25-21ksoftirqd/120:10:191
29764992721,4cyclictest25-21ksoftirqd/119:52:011
29765992621,3cyclictest33-21ksoftirqd/221:51:512
139391260,0ptp4l401ktimersoftd/300:20:273
29764992520,3cyclictest25-21ksoftirqd/119:11:171
29764992520,3cyclictest25-21ksoftirqd/119:11:171
29764992418,4cyclictest25-21ksoftirqd/120:32:091
29764992318,3cyclictest25-21ksoftirqd/121:30:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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