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2025-08-21 - 22:10
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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 rackdslot3.osadl.org (updated Thu Aug 21, 2025 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239512224150,63sleep10-21swapper/107:06:581
238452206172,22sleep30-21swapper/307:05:363
238442205172,22sleep20-21swapper/207:05:362
240892203170,22sleep00-21swapper/007:08:460
279621630,1sleep30-21swapper/312:00:223
2771021590,4sleep12447899cyclictest10:35:261
225452750,23sleep09-21ksoftirqd/011:35:120
24479997034,5cyclictest33-21ksoftirqd/208:20:002
24479997034,5cyclictest33-21ksoftirqd/208:20:002
24479996432,4cyclictest33-21ksoftirqd/208:55:012
278462620,4sleep027852-21irqrtprio09:30:190
24479996232,5cyclictest33-21ksoftirqd/208:50:002
24479996230,4cyclictest33-21ksoftirqd/208:00:012
24479996125,5cyclictest33-21ksoftirqd/207:20:132
24479996029,5cyclictest33-21ksoftirqd/212:10:012
24479996027,7cyclictest33-21ksoftirqd/209:45:142
24479996027,6cyclictest33-21ksoftirqd/210:00:002
24479996027,6cyclictest33-21ksoftirqd/209:59:592
24479996024,6cyclictest33-21ksoftirqd/207:35:252
24479996022,7cyclictest33-21ksoftirqd/208:10:142
24479996021,5cyclictest33-21ksoftirqd/212:20:182
24479995926,6cyclictest33-21ksoftirqd/211:45:142
24479995926,6cyclictest33-21ksoftirqd/210:05:252
24479995925,5cyclictest33-21ksoftirqd/210:20:062
24479995922,6cyclictest33-21ksoftirqd/207:40:152
24479995829,4cyclictest33-21ksoftirqd/210:11:002
24479995828,4cyclictest33-21ksoftirqd/210:45:162
24479995825,4cyclictest33-21ksoftirqd/211:00:002
24479995822,5cyclictest33-21ksoftirqd/207:25:162
136991580,8ptp4l401ktimersoftd/310:17:093
24479995730,3cyclictest33-21ksoftirqd/211:05:242
24479995730,3cyclictest33-21ksoftirqd/211:05:242
24479995726,6cyclictest33-21ksoftirqd/209:10:172
24479995726,4cyclictest33-21ksoftirqd/210:50:282
24479995725,5cyclictest33-21ksoftirqd/208:00:172
24479995627,9cyclictest33-21ksoftirqd/211:25:012
24479995624,4cyclictest33-21ksoftirqd/209:50:202
24479995622,6cyclictest33-21ksoftirqd/209:40:242
24479995529,7cyclictest33-21ksoftirqd/208:05:152
24479995527,5cyclictest33-21ksoftirqd/209:05:132
24479995527,10cyclictest33-21ksoftirqd/208:35:192
24479995525,4cyclictest33-21ksoftirqd/210:35:152
24479995525,3cyclictest33-21ksoftirqd/208:55:202
24479995524,9cyclictest33-21ksoftirqd/211:15:202
24479995522,7cyclictest33-21ksoftirqd/210:40:142
24479995522,5cyclictest33-21ksoftirqd/211:10:242
24479995521,11cyclictest33-21ksoftirqd/207:50:192
24479995520,5cyclictest33-21ksoftirqd/210:25:282
24479995423,6cyclictest33-21ksoftirqd/212:00:282
24479995422,8cyclictest33-21ksoftirqd/208:25:272
24479995422,4cyclictest33-21ksoftirqd/212:33:432
24479995420,6cyclictest33-21ksoftirqd/212:25:202
24479995419,8cyclictest33-21ksoftirqd/211:55:252
24479995419,6cyclictest33-21ksoftirqd/209:25:132
136991540,1ptp4l401ktimersoftd/311:18:453
136991540,1ptp4l401ktimersoftd/309:53:423
136991540,1ptp4l391rcuc/307:33:283
24479995326,4cyclictest33-21ksoftirqd/207:45:152
24479995318,5cyclictest33-21ksoftirqd/209:35:212
24479995318,5cyclictest33-21ksoftirqd/208:20:232
24479995317,6cyclictest33-21ksoftirqd/209:20:272
24479995222,5cyclictest33-21ksoftirqd/209:05:002
24479995219,6cyclictest33-21ksoftirqd/207:15:152
24479995219,6cyclictest33-21ksoftirqd/207:15:152
24479995218,5cyclictest33-21ksoftirqd/212:15:272
18542520,2sleep10-21swapper/112:00:001
2447999515,7cyclictest33-21ksoftirqd/211:25:312
24479995127,6cyclictest33-21ksoftirqd/208:30:152
24479995123,9cyclictest33-21ksoftirqd/211:35:132
24479995120,6cyclictest33-21ksoftirqd/211:40:142
24479995038,3cyclictest33-21ksoftirqd/210:00:272
24479995020,10cyclictest33-21ksoftirqd/212:10:252
24479995018,6cyclictest33-21ksoftirqd/211:00:202
24479995017,6cyclictest33-21ksoftirqd/210:30:192
180922500,4sleep20-21swapper/210:15:502
2447999494,7cyclictest33-21ksoftirqd/207:30:252
2447999493,6cyclictest33-21ksoftirqd/208:45:002
24479994924,4cyclictest33-21ksoftirqd/207:10:262
2447999483,6cyclictest33-21ksoftirqd/209:30:192
2447999482,6cyclictest33-21ksoftirqd/212:35:132
2447999464,6cyclictest33-21ksoftirqd/209:15:282
136991460,1ptp4l0-21swapper/308:39:413
1371914533,5phc2sys0-21swapper/307:10:003
136991450,0ptp4l401ktimersoftd/307:50:143
59298440,9rtkit-daemon0-21swapper/111:44:461
2447999445,5cyclictest33-21ksoftirqd/211:52:462
2447999444,5cyclictest33-21ksoftirqd/211:30:132
136991440,1ptp4l401ktimersoftd/311:48:003
136991440,0ptp4l401ktimersoftd/311:40:003
2448099410,2cyclictest121rcu_preempt11:36:223
24477994135,4cyclictest25781-21cron10:35:000
136991390,1ptp4l401ktimersoftd/308:13:203
24480993731,3cyclictest41-21ksoftirqd/311:55:013
24480993629,5cyclictest41-21ksoftirqd/309:31:553
24478993630,4cyclictest25-21ksoftirqd/107:35:141
24478993630,4cyclictest25-21ksoftirqd/107:31:171
24480993530,3cyclictest20731-21perf08:10:003
24480993529,4cyclictest41-21ksoftirqd/312:19:193
24480993529,3cyclictest41-21ksoftirqd/307:16:453
24480993529,3cyclictest41-21ksoftirqd/307:16:443
24480993528,4cyclictest41-21ksoftirqd/311:58:223
24478993529,4cyclictest25-21ksoftirqd/110:59:511
24478993529,4cyclictest25-21ksoftirqd/110:45:061
24478993529,4cyclictest25-21ksoftirqd/109:04:561
24480993428,4cyclictest41-21ksoftirqd/312:08:373
24480993428,4cyclictest41-21ksoftirqd/311:20:393
24480993428,4cyclictest41-21ksoftirqd/310:06:093
24478993428,4cyclictest25-21ksoftirqd/112:16:321
24478993428,4cyclictest25-21ksoftirqd/112:02:491
24478993428,4cyclictest25-21ksoftirqd/108:16:311
24478993428,4cyclictest25-21ksoftirqd/108:16:301
24477993428,4cyclictest9-21ksoftirqd/011:49:480
24477993428,4cyclictest9-21ksoftirqd/010:54:390
24477993428,4cyclictest9-21ksoftirqd/009:46:280
24480993328,3cyclictest41-21ksoftirqd/308:27:193
24480993327,4cyclictest41-21ksoftirqd/308:59:333
24480993327,4cyclictest41-21ksoftirqd/307:59:153
24480993327,4cyclictest41-21ksoftirqd/307:47:373
24480993327,4cyclictest41-21ksoftirqd/307:27:023
24478993328,3cyclictest25-21ksoftirqd/111:25:151
24478993328,3cyclictest25-21ksoftirqd/110:40:541
24478993327,4cyclictest25-21ksoftirqd/111:16:111
24478993327,4cyclictest25-21ksoftirqd/111:01:431
24478993327,4cyclictest25-21ksoftirqd/110:29:341
24478993327,4cyclictest25-21ksoftirqd/109:34:541
24478993327,4cyclictest25-21ksoftirqd/108:36:081
24478993327,4cyclictest25-21ksoftirqd/108:21:281
24478993326,4cyclictest25-21ksoftirqd/109:05:171
24478993325,5cyclictest25-21ksoftirqd/110:31:541
24477993328,3cyclictest9-21ksoftirqd/007:30:000
24477993327,4cyclictest9-21ksoftirqd/010:43:130
24477993327,4cyclictest9-21ksoftirqd/007:56:070
24477993327,4cyclictest9-21ksoftirqd/007:17:040
24477993327,4cyclictest9-21ksoftirqd/007:17:040
24480993227,3cyclictest41-21ksoftirqd/312:33:493
24480993227,3cyclictest41-21ksoftirqd/309:48:593
24480993226,4cyclictest41-21ksoftirqd/312:11:133
24480993226,4cyclictest41-21ksoftirqd/311:12:323
24480993226,4cyclictest41-21ksoftirqd/311:01:213
24480993226,4cyclictest41-21ksoftirqd/310:53:313
24480993225,5cyclictest41-21ksoftirqd/311:26:443
24480993224,5cyclictest41-21ksoftirqd/309:14:383
24478993227,3cyclictest25-21ksoftirqd/112:27:121
24478993227,3cyclictest25-21ksoftirqd/108:25:161
24478993227,3cyclictest25-21ksoftirqd/107:58:081
24478993226,4cyclictest25-21ksoftirqd/112:36:391
24478993226,4cyclictest25-21ksoftirqd/109:44:161
24478993226,4cyclictest25-21ksoftirqd/108:31:511
24478993226,4cyclictest25-21ksoftirqd/108:02:421
24478993225,5cyclictest25-21ksoftirqd/108:07:521
24477993227,3cyclictest9-21ksoftirqd/011:16:050
24477993226,4cyclictest9-21ksoftirqd/012:13:390
24477993226,4cyclictest9-21ksoftirqd/011:51:010
24477993226,4cyclictest9-21ksoftirqd/010:08:180
24477993226,4cyclictest9-21ksoftirqd/008:51:120
24477993226,4cyclictest9-21ksoftirqd/007:49:130
24477993226,4cyclictest9-21ksoftirqd/007:24:380
24477993226,3cyclictest9-21ksoftirqd/010:15:330
24480993126,3cyclictest41-21ksoftirqd/310:13:173
24480993125,4cyclictest41-21ksoftirqd/307:23:253
24478993126,3cyclictest25-21ksoftirqd/107:16:221
24478993126,3cyclictest25-21ksoftirqd/107:16:211
24478993125,4cyclictest25-21ksoftirqd/112:08:071
24478993125,4cyclictest25-21ksoftirqd/111:23:341
24478993125,4cyclictest25-21ksoftirqd/109:39:591
24478993125,4cyclictest25-21ksoftirqd/108:53:541
24478993125,4cyclictest25-21ksoftirqd/108:46:391
24478993125,4cyclictest25-21ksoftirqd/107:13:441
24478993124,5cyclictest25-21ksoftirqd/107:42:041
24477993126,3cyclictest9-21ksoftirqd/010:03:130
24477993126,3cyclictest9-21ksoftirqd/009:27:370
24477993126,3cyclictest9-21ksoftirqd/008:11:440
24477993125,4cyclictest9-21ksoftirqd/012:01:070
24477993125,4cyclictest9-21ksoftirqd/011:55:060
24477993125,4cyclictest9-21ksoftirqd/011:21:120
24477993125,4cyclictest9-21ksoftirqd/011:11:330
24477993125,4cyclictest9-21ksoftirqd/009:42:590
24477993125,4cyclictest9-21ksoftirqd/008:06:350
24477993124,5cyclictest9-21ksoftirqd/009:14:310
136991310,0ptp4l401ktimersoftd/310:58:583
136991310,0ptp4l401ktimersoftd/308:30:493
136991310,0ptp4l401ktimersoftd/308:20:163
24480993025,3cyclictest41-21ksoftirqd/309:38:253
24480993025,3cyclictest41-21ksoftirqd/309:00:383
24480993024,4cyclictest41-21ksoftirqd/308:02:083
24480993024,4cyclictest41-21ksoftirqd/307:42:183
24480993022,5cyclictest41-21ksoftirqd/312:30:013
24478993025,3cyclictest25-21ksoftirqd/111:33:041
24478993025,3cyclictest25-21ksoftirqd/110:07:141
24478993024,4cyclictest25-21ksoftirqd/112:24:021
24478993024,4cyclictest25-21ksoftirqd/111:51:091
24478993024,4cyclictest25-21ksoftirqd/111:37:201
24478993024,4cyclictest25-21ksoftirqd/110:53:171
24478993024,4cyclictest25-21ksoftirqd/107:25:001
24478993023,5cyclictest25-21ksoftirqd/108:56:301
24477993026,3cyclictest9-21ksoftirqd/012:21:150
24477993025,3cyclictest9-21ksoftirqd/009:02:320
24477993024,4cyclictest9-21ksoftirqd/012:38:380
24477993024,4cyclictest9-21ksoftirqd/010:35:060
24477993024,4cyclictest9-21ksoftirqd/008:31:540
136991300,1ptp4l401ktimersoftd/312:37:493
136991300,0ptp4l401ktimersoftd/310:39:543
136991300,0ptp4l401ktimersoftd/308:49:023
136991300,0ptp4l401ktimersoftd/307:35:463
24480992924,3cyclictest41-21ksoftirqd/309:24:173
24480992923,3cyclictest41-21ksoftirqd/309:42:043
24478992924,3cyclictest25-21ksoftirqd/112:32:341
24478992924,3cyclictest25-21ksoftirqd/111:05:201
24478992924,3cyclictest25-21ksoftirqd/111:05:201
24478992924,3cyclictest25-21ksoftirqd/109:17:401
24478992923,4cyclictest25-21ksoftirqd/111:48:081
24478992923,4cyclictest25-21ksoftirqd/108:11:011
24477992924,3cyclictest9-21ksoftirqd/012:30:510
24477992924,3cyclictest9-21ksoftirqd/012:26:590
24477992924,3cyclictest9-21ksoftirqd/011:35:000
24477992924,3cyclictest9-21ksoftirqd/011:01:100
24477992924,3cyclictest9-21ksoftirqd/009:58:440
24477992924,3cyclictest9-21ksoftirqd/009:58:430
24477992923,4cyclictest9-21ksoftirqd/011:42:340
24477992923,4cyclictest9-21ksoftirqd/011:29:180
24477992923,4cyclictest9-21ksoftirqd/009:53:460
24477992923,4cyclictest9-21ksoftirqd/009:36:170
24477992923,4cyclictest9-21ksoftirqd/008:44:340
24477992923,4cyclictest9-21ksoftirqd/008:36:030
24477992923,4cyclictest9-21ksoftirqd/008:00:090
24477992923,4cyclictest9-21ksoftirqd/007:43:280
136991290,7ptp4l401ktimersoftd/310:48:463
136991290,0ptp4l401ktimersoftd/311:08:183
136991290,0ptp4l401ktimersoftd/311:08:183
136991290,0ptp4l401ktimersoftd/309:19:073
136991290,0ptp4l401ktimersoftd/308:44:373
24480992823,3cyclictest41-21ksoftirqd/310:03:053
24480992823,3cyclictest41-21ksoftirqd/309:09:203
24480992823,3cyclictest41-21ksoftirqd/308:50:383
24478992823,3cyclictest25-21ksoftirqd/109:20:081
24478992822,4cyclictest25-21ksoftirqd/110:21:431
24477992823,3cyclictest9-21ksoftirqd/007:53:010
24477992823,3cyclictest9-21ksoftirqd/007:39:160
24477992822,4cyclictest9-21ksoftirqd/008:58:220
24477992822,4cyclictest9-21ksoftirqd/008:23:240
136991280,0ptp4l401ktimersoftd/310:33:263
24480992722,3cyclictest41-21ksoftirqd/312:24:313
24480992721,4cyclictest41-21ksoftirqd/308:20:003
24480992721,4cyclictest41-21ksoftirqd/308:20:003
24478992722,3cyclictest25-21ksoftirqd/107:51:151
24478992722,3cyclictest25-21ksoftirqd/107:25:211
24478992721,4cyclictest25-21ksoftirqd/112:15:001
24478992721,4cyclictest25-21ksoftirqd/110:12:331
24478992720,5cyclictest25-21ksoftirqd/111:11:501
24477992722,3cyclictest9-21ksoftirqd/011:07:160
24477992722,3cyclictest9-21ksoftirqd/011:07:160
24477992721,4cyclictest9-21ksoftirqd/009:17:440
24477992721,4cyclictest9-21ksoftirqd/008:47:030
24477992721,4cyclictest9-21ksoftirqd/008:26:460
24477992721,3cyclictest9-21ksoftirqd/010:47:260
136991270,0ptp4l401ktimersoftd/310:40:393
24480992621,3cyclictest41-21ksoftirqd/310:28:433
24478992620,4cyclictest25-21ksoftirqd/110:16:341
24477992621,3cyclictest9-21ksoftirqd/012:07:200
24477992621,3cyclictest9-21ksoftirqd/009:24:550
24477992620,4cyclictest9-21ksoftirqd/010:21:050
24480992520,3cyclictest41-21ksoftirqd/309:59:013
24480992520,3cyclictest41-21ksoftirqd/309:59:013
2447899250,2cyclictest121rcu_preempt08:40:141
24477992520,3cyclictest9-21ksoftirqd/012:17:490
24477992520,3cyclictest9-21ksoftirqd/010:56:450
24477992520,3cyclictest9-21ksoftirqd/010:26:230
136991250,0ptp4l401ktimersoftd/310:20:123
24478992419,3cyclictest25-21ksoftirqd/109:57:471
24478992419,3cyclictest25-21ksoftirqd/109:57:471
24478992419,3cyclictest25-21ksoftirqd/109:50:151
24478992419,3cyclictest25-21ksoftirqd/109:48:341
24478992416,5cyclictest10989-21cron07:50:011
24477992418,4cyclictest9-21ksoftirqd/010:10:030
136991240,0ptp4l401ktimersoftd/311:30:113
136991240,0ptp4l401ktimersoftd/309:25:123
24478992318,3cyclictest25-21ksoftirqd/110:03:211
24477992318,3cyclictest9-21ksoftirqd/009:05:490
24477992316,5cyclictest9-21ksoftirqd/007:31:200
24477992217,3cyclictest9-21ksoftirqd/008:16:360
24477992217,3cyclictest9-21ksoftirqd/008:16:360
24478992116,3cyclictest25-21ksoftirqd/109:26:461
24478992115,3cyclictest25-21ksoftirqd/109:10:121
24477991611,3cyclictest26573-21sshd07:14:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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