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2026-08-05 - 18:03
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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 rackdslot1.osadl.org (updated Wed Aug 05, 2026 12:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11815996824,5cyclictest9-21ksoftirqd/008:07:360
11815996723,4cyclictest9-21ksoftirqd/011:39:540
11815996722,7cyclictest9-21ksoftirqd/009:20:000
11815996518,9cyclictest9-21ksoftirqd/011:25:260
309582640,5sleep10-21swapper/110:55:161
11815996423,5cyclictest9-21ksoftirqd/007:12:400
11815996328,4cyclictest9-21ksoftirqd/011:18:470
134491620,17ptp4l448-21dbus-daemon11:18:222
11815996122,4cyclictest9-21ksoftirqd/011:31:080
11815996116,8cyclictest9-21ksoftirqd/010:50:000
134491600,4ptp4l0-21swapper/210:06:302
11815996023,4cyclictest9-21ksoftirqd/011:01:370
11818995927,7cyclictest41-21ksoftirqd/310:42:123
11815995919,8cyclictest9-21ksoftirqd/012:20:280
134491580,4ptp4l0-21swapper/009:31:090
1181899582,34cyclictest0-21swapper/312:02:463
1181899581,16cyclictest0-21swapper/310:35:013
11815995822,9cyclictest9-21ksoftirqd/010:22:230
11815995820,7cyclictest9-21ksoftirqd/009:55:010
134491570,3ptp4l0-21swapper/012:30:190
11818995726,9cyclictest41-21ksoftirqd/307:20:013
1181899570,12cyclictest757-21polkitd11:18:493
134491560,3ptp4l0-21swapper/111:24:381
1181899564,8cyclictest0-21swapper/310:00:163
134491550,4ptp4l0-21swapper/212:07:312
134491550,3ptp4l0-21swapper/110:15:281
134491550,3ptp4l0-21swapper/108:09:241
1181899553,7cyclictest0-21swapper/311:30:273
134491540,3ptp4l0-21swapper/312:25:003
134491540,3ptp4l0-21swapper/010:33:360
1181899542,30cyclictest0-21swapper/308:32:163
1181899540,6cyclictest41-21ksoftirqd/308:00:013
11815995419,4cyclictest9-21ksoftirqd/010:40:280
134491530,4ptp4l0-21swapper/212:13:162
134491530,3ptp4l0-21swapper/011:55:250
134491530,14ptp4l0-21swapper/111:05:191
1181899535,6cyclictest0-21swapper/308:00:503
1181899535,6cyclictest0-21swapper/307:32:003
1181899535,11cyclictest0-21swapper/310:29:553
1181899534,7cyclictest0-21swapper/308:28:583
1181899532,7cyclictest0-21swapper/312:35:283
1181899532,7cyclictest0-21swapper/312:30:153
134491520,4ptp4l0-21swapper/109:19:041
134491520,4ptp4l0-21swapper/107:59:341
134491520,4ptp4l0-21swapper/007:46:020
1181899523,5cyclictest41-21ksoftirqd/310:45:243
1181899522,6cyclictest41-21ksoftirqd/310:55:183
1181899522,43cyclictest0-21swapper/311:57:373
134491510,3ptp4l0-21swapper/110:10:261
1181899515,6cyclictest0-21swapper/310:07:153
1181899514,6cyclictest0-21swapper/307:51:323
1181899513,6cyclictest0-21swapper/308:43:573
1181899513,6cyclictest0-21swapper/308:15:343
1181899512,6cyclictest391rcuc/311:40:193
11815995122,8cyclictest9-21ksoftirqd/012:39:540
11815995119,4cyclictest9-21ksoftirqd/007:37:110
11815995118,4cyclictest9-21ksoftirqd/008:46:310
11815995117,4cyclictest9-21ksoftirqd/008:42:220
134491500,4ptp4l0-21swapper/207:50:322
134491500,4ptp4l0-21swapper/111:56:381
134491500,4ptp4l0-21swapper/012:10:380
134491500,4ptp4l0-21swapper/010:02:420
134491500,4ptp4l0-21swapper/009:07:250
1181899504,6cyclictest0-21swapper/310:21:233
1181899504,5cyclictest0-21swapper/311:09:203
1181899503,6cyclictest0-21swapper/312:11:393
1181899502,7cyclictest0-21swapper/312:05:183
1181899502,6cyclictest0-21swapper/311:10:253
1181899502,6cyclictest0-21swapper/310:15:183
1181899501,7cyclictest0-21swapper/310:35:253
11815995023,8cyclictest9-21ksoftirqd/008:30:010
11815995022,9cyclictest9-21ksoftirqd/008:15:550
11815995020,5cyclictest9-21ksoftirqd/011:10:150
134491490,4ptp4l0-21swapper/311:20:543
134491490,4ptp4l0-21swapper/111:31:121
134491490,4ptp4l0-21swapper/109:49:431
134491490,4ptp4l0-21swapper/109:49:431
134491490,4ptp4l0-21swapper/012:06:520
134491490,4ptp4l0-21swapper/012:00:240
134491490,4ptp4l0-21swapper/011:43:250
134491490,4ptp4l0-21swapper/009:37:510
1181899495,6cyclictest0-21swapper/309:21:023
1181899495,5cyclictest0-21swapper/310:53:033
1181899494,7cyclictest0-21swapper/307:10:323
1181899492,6cyclictest0-21swapper/311:25:383
1181899492,39cyclictest0-21swapper/308:20:293
1181899491,5cyclictest391rcuc/307:50:003
1181899490,6cyclictest41-21ksoftirqd/311:50:233
1181899490,6cyclictest1307-21sshd08:08:003
1181699491,3cyclictest121rcu_preempt11:18:471
11815994918,4cyclictest9-21ksoftirqd/011:23:190
11815994917,3cyclictest9-21ksoftirqd/010:05:220
11815994916,4cyclictest9-21ksoftirqd/008:00:050
11815994916,3cyclictest9-21ksoftirqd/009:43:590
11815994912,7cyclictest9-21ksoftirqd/009:15:000
134491480,4ptp4l0-21swapper/108:18:141
134491480,4ptp4l0-21swapper/011:49:040
134491480,4ptp4l0-21swapper/010:13:060
134491480,4ptp4l0-21swapper/007:44:050
134491480,3ptp4l0-21swapper/211:23:302
1181899485,6cyclictest0-21swapper/309:27:403
1181899484,7cyclictest0-21swapper/309:57:353
1181899484,6cyclictest0-21swapper/309:07:103
1181899484,6cyclictest0-21swapper/308:12:183
1181899484,5cyclictest0-21swapper/307:20:333
1181899482,6cyclictest0-21swapper/309:50:133
1181899480,5cyclictest41-21ksoftirqd/309:35:003
11815994818,4cyclictest9-21ksoftirqd/011:06:050
11815994814,6cyclictest9-21ksoftirqd/010:55:250
11815994813,4cyclictest9-21ksoftirqd/009:48:090
11815994813,4cyclictest9-21ksoftirqd/009:48:090
11815994812,4cyclictest9-21ksoftirqd/007:51:340
134491470,4ptp4l0-21swapper/008:13:270
134491470,3ptp4l0-21swapper/210:11:432
134491470,3ptp4l0-21swapper/110:27:061
134491470,3ptp4l0-21swapper/007:23:570
1181899475,6cyclictest0-21swapper/309:41:023
1181899475,11cyclictest0-21swapper/311:48:533
1181899475,11cyclictest0-21swapper/308:36:163
1181899474,6cyclictest0-21swapper/308:54:503
1181899474,6cyclictest0-21swapper/307:43:253
1181899473,6cyclictest41-21ksoftirqd/311:00:133
1181899472,7cyclictest0-21swapper/309:02:093
11815994718,6cyclictest9-21ksoftirqd/012:15:590
134491460,4ptp4l0-21swapper/210:55:122
134491460,3ptp4l0-21swapper/011:50:140
1181899464,6cyclictest0-21swapper/312:21:303
1181899464,6cyclictest0-21swapper/309:36:513
1181899464,6cyclictest0-21swapper/307:26:443
11815994621,8cyclictest9-21ksoftirqd/010:35:200
11815994615,3cyclictest9-21ksoftirqd/009:23:240
134491450,8ptp4l0-21swapper/211:36:112
134491450,4ptp4l0-21swapper/009:56:060
134491450,3ptp4l33-21ksoftirqd/207:21:552
1181899455,5cyclictest0-21swapper/307:37:193
1181899454,6cyclictest0-21swapper/309:15:363
1181899454,6cyclictest0-21swapper/308:47:223
1181899453,6cyclictest0-21swapper/312:16:373
1181899452,31cyclictest0-21swapper/309:45:213
1181899452,31cyclictest0-21swapper/309:45:213
11815994519,6cyclictest9-21ksoftirqd/007:55:310
11815994518,3cyclictest9-21ksoftirqd/008:38:010
11815994513,4cyclictest9-21ksoftirqd/008:57:590
134491440,9ptp4l21455-21fschecks_time10:35:181
134491440,9ptp4l0-21swapper/211:47:292
134491440,3ptp4l0-21swapper/112:00:451
1181899444,7cyclictest41-21ksoftirqd/311:35:193
1181899442,7cyclictest0-21swapper/310:10:243
134491430,9ptp4l0-21swapper/211:06:392
134491430,9ptp4l0-21swapper/210:31:492
134491430,9ptp4l0-21swapper/210:21:112
134491430,9ptp4l0-21swapper/210:15:442
134491430,9ptp4l0-21swapper/209:33:102
134491430,6ptp4l0-21swapper/107:08:531
134491430,5ptp4l0-21swapper/212:15:132
134491430,4ptp4l241ktimersoftd/110:40:181
134491430,4ptp4l2318-21gnome-shell11:53:581
134491430,4ptp4l0-21swapper/107:16:431
134491430,3ptp4l0-21swapper/110:31:201
134491430,3ptp4l0-21swapper/107:38:351
134491430,3ptp4l0-21swapper/007:34:360
1181899434,6cyclictest0-21swapper/309:11:483
11816994338,3cyclictest25-21ksoftirqd/107:25:011
11815994318,7cyclictest9-21ksoftirqd/008:51:020
11815994316,6cyclictest9-21ksoftirqd/012:27:110
11815994315,7cyclictest9-21ksoftirqd/010:15:240
1181599431,3cyclictest121rcu_preempt10:28:120
11815994311,3cyclictest9-21ksoftirqd/009:00:150
1181599430,7cyclictest21043-21cron08:25:010
134491420,9ptp4l0-21swapper/212:27:242
134491420,9ptp4l0-21swapper/209:46:102
134491420,9ptp4l0-21swapper/209:46:102
134491420,9ptp4l0-21swapper/207:13:412
134491420,5ptp4l2086-21users11:00:271
134491420,4ptp4l22748-21apt-get11:45:131
134491420,4ptp4l15472-21ls10:20:281
134491420,4ptp4l0-21swapper/210:50:482
134491420,4ptp4l0-21swapper/208:02:212
134491420,4ptp4l0-21swapper/207:56:412
134491420,3ptp4l0-21swapper/108:44:211
1181899422,6cyclictest0-21swapper/308:55:033
11815994218,6cyclictest9-21ksoftirqd/007:28:350
11815994216,3cyclictest9-21ksoftirqd/010:51:120
134491410,9ptp4l0-21swapper/207:17:032
134491410,8ptp4l0-21swapper/209:15:412
134491410,8ptp4l0-21swapper/208:15:372
134491410,4ptp4l553-21iostat_ios09:50:141
134491410,4ptp4l20209-21apt-get08:20:031
134491410,4ptp4l14177-21irqstats11:25:211
134491410,4ptp4l0-21swapper/110:00:391
134491410,4ptp4l0-21swapper/109:55:131
134491410,3ptp4l2985-21meminfo12:10:201
134491410,3ptp4l29329-21python10:50:271
11816994135,3cyclictest25-21ksoftirqd/112:16:041
11816994135,3cyclictest25-21ksoftirqd/107:30:001
11815994135,3cyclictest9-21ksoftirqd/007:20:010
134491400,9ptp4l0-21swapper/209:05:312
134491400,8ptp4l0-21swapper/207:29:132
134491400,6ptp4l0-21swapper/108:11:331
134491400,6ptp4l0-21swapper/007:05:580
134491400,5ptp4l0-21swapper/211:40:112
134491400,4ptp4l4742-21/usr/sbin/munin10:00:152
134491400,4ptp4l0-21swapper/211:55:452
134491400,4ptp4l0-21swapper/209:12:462
134491400,4ptp4l0-21swapper/207:46:362
134491400,4ptp4l0-21swapper/207:43:062
134491400,3ptp4l9274-21diskstats12:25:141
134491400,3ptp4l32310-21df_inode12:05:141
134491400,3ptp4l17676-21apt-get11:35:041
1181699404,3cyclictest25-21ksoftirqd/109:44:591
11816994035,3cyclictest25-21ksoftirqd/112:35:001
1181599409,10cyclictest9-21ksoftirqd/008:31:590
11815994025,4cyclictest9-21ksoftirqd/009:29:280
134491390,5ptp4l0-21swapper/211:30:202
134491390,4ptp4l7338-21df_abs10:05:151
134491390,4ptp4l0-21swapper/212:35:082
134491390,4ptp4l0-21swapper/212:34:122
134491390,4ptp4l0-21swapper/211:25:132
134491390,4ptp4l0-21swapper/211:03:002
134491390,4ptp4l0-21swapper/210:41:442
134491390,4ptp4l0-21swapper/210:25:252
134491390,4ptp4l0-21swapper/209:50:302
134491390,4ptp4l0-21swapper/209:36:562
134491390,4ptp4l0-21swapper/208:48:432
134491390,4ptp4l0-21swapper/208:41:192
134491390,4ptp4l0-21swapper/208:10:332
134491390,4ptp4l0-21swapper/207:35:112
134491390,4ptp4l0-21swapper/111:10:231
134491390,4ptp4l0-21swapper/110:45:201
134491390,4ptp4l0-21swapper/109:31:531
134491390,4ptp4l0-21swapper/109:27:481
134491390,4ptp4l0-21swapper/109:20:021
134491390,4ptp4l0-21swapper/109:10:581
134491390,4ptp4l0-21swapper/109:07:211
134491390,4ptp4l0-21swapper/109:00:591
134491390,4ptp4l0-21swapper/108:53:481
134491390,4ptp4l0-21swapper/108:35:461
134491390,4ptp4l0-21swapper/108:32:271
134491390,4ptp4l0-21swapper/108:25:091
134491390,4ptp4l0-21swapper/107:33:571
134491390,3ptp4l0-21swapper/211:50:272
134491390,3ptp4l0-21swapper/211:14:342
134491390,3ptp4l0-21swapper/107:53:591
134491390,2ptp4l13784-21apt-get12:35:141
11816993933,3cyclictest25-21ksoftirqd/108:50:001
11816993911,4cyclictest25-21ksoftirqd/107:48:491
134491380,4ptp4l2742-21sed09:55:162
134491380,4ptp4l0-21swapper/212:21:172
134491380,4ptp4l0-21swapper/212:01:492
134491380,4ptp4l0-21swapper/210:45:062
134491380,4ptp4l0-21swapper/210:35:402
134491380,4ptp4l0-21swapper/209:41:162
134491380,4ptp4l0-21swapper/209:28:152
134491380,4ptp4l0-21swapper/209:21:072
134491380,4ptp4l0-21swapper/209:00:092
134491380,4ptp4l0-21swapper/208:58:092
134491380,4ptp4l0-21swapper/208:50:242
134491380,4ptp4l0-21swapper/208:39:042
134491380,4ptp4l0-21swapper/208:31:422
134491380,4ptp4l0-21swapper/207:33:032
134491380,4ptp4l0-21swapper/112:20:111
134491380,4ptp4l0-21swapper/109:35:421
134491380,4ptp4l0-21swapper/107:40:151
134491380,4ptp4l0-21swapper/107:10:311
134491380,3ptp4l0-21swapper/208:05:092
134491380,3ptp4l0-21swapper/111:42:311
134491380,3ptp4l0-21swapper/108:00:581
134491370,4ptp4l0-21swapper/208:27:402
134491370,4ptp4l0-21swapper/208:20:212
134491370,4ptp4l0-21swapper/108:56:481
137891203,3phc2sys0-21swapper/307:07:513
112502113,4sleep20-21swapper/207:06:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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