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2026-06-28 - 18:38
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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 rackdslot4.osadl.org (updated Sun Jun 28, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
84732208173,23sleep30-21swapper/307:08:293
83182202170,21sleep20-21swapper/207:06:272
83102201168,22sleep10-21swapper/107:06:221
82492200168,21sleep00-21swapper/007:05:320
397621680,6sleep1889099cyclictest09:10:131
85982160121,13sleep20-21swapper/207:10:012
53152660,3sleep35318-21unixbench_singl11:20:253
76922570,2sleep00-21swapper/012:30:240
138491560,1ptp4l401ktimersoftd/311:27:083
138491560,1ptp4l401ktimersoftd/310:12:303
86642530,2sleep10-21swapper/111:30:141
138491530,1ptp4l401ktimersoftd/310:28:483
138491530,1ptp4l401ktimersoftd/307:51:323
8891994819,26cyclictest0-21swapper/211:40:252
889199461,42cyclictest13127-21latency_hist11:40:012
138491430,0ptp4l401ktimersoftd/312:08:443
138491430,0ptp4l401ktimersoftd/310:40:073
8890994034,3cyclictest29147-21grep11:05:181
8892993933,3cyclictest775-21ls09:05:003
8890993931,5cyclictest25-21ksoftirqd/111:40:001
138491390,16ptp4l401ktimersoftd/308:45:253
138491380,0ptp4l401ktimersoftd/308:10:123
8892993731,4cyclictest41-21ksoftirqd/311:07:573
8892993730,4cyclictest41-21ksoftirqd/308:23:583
8892993722,5cyclictest41-21ksoftirqd/309:20:153
8891993731,4cyclictest33-21ksoftirqd/211:03:252
889199370,35cyclictest0-21swapper/211:15:242
8889993730,4cyclictest9-21ksoftirqd/009:15:010
138491370,1ptp4l401ktimersoftd/308:55:003
8892993630,4cyclictest41-21ksoftirqd/311:00:353
8891993631,3cyclictest33-21ksoftirqd/208:37:452
8891993630,4cyclictest33-21ksoftirqd/209:57:372
8891993630,4cyclictest33-21ksoftirqd/207:51:122
8891993630,4cyclictest33-21ksoftirqd/207:43:492
8890993630,4cyclictest25-21ksoftirqd/111:15:301
8890993629,4cyclictest25-21ksoftirqd/109:35:051
8889993630,4cyclictest9-21ksoftirqd/011:59:540
8889993630,4cyclictest9-21ksoftirqd/011:59:540
8892993529,4cyclictest41-21ksoftirqd/312:03:343
8892993529,4cyclictest41-21ksoftirqd/310:20:323
8892993529,4cyclictest41-21ksoftirqd/309:42:203
8892993529,4cyclictest41-21ksoftirqd/308:07:463
8892993529,4cyclictest41-21ksoftirqd/308:07:463
8892993529,4cyclictest41-21ksoftirqd/308:01:353
8892993528,4cyclictest41-21ksoftirqd/307:44:593
8891993529,4cyclictest33-21ksoftirqd/212:12:592
8891993529,4cyclictest33-21ksoftirqd/212:07:352
8891993529,4cyclictest33-21ksoftirqd/210:44:172
8891993529,4cyclictest33-21ksoftirqd/209:39:032
8891993529,4cyclictest33-21ksoftirqd/207:18:342
8891993528,5cyclictest33-21ksoftirqd/211:13:182
8890993529,4cyclictest25-21ksoftirqd/111:28:491
8890993529,4cyclictest25-21ksoftirqd/110:19:381
8890993529,4cyclictest25-21ksoftirqd/110:00:161
8890993529,4cyclictest25-21ksoftirqd/109:20:331
8890993529,4cyclictest25-21ksoftirqd/108:25:361
8890993529,4cyclictest25-21ksoftirqd/107:47:261
8890993528,5cyclictest25-21ksoftirqd/109:43:511
8889993529,4cyclictest9-21ksoftirqd/012:03:240
8889993529,4cyclictest9-21ksoftirqd/011:20:270
8889993529,4cyclictest9-21ksoftirqd/008:43:450
8892993428,4cyclictest41-21ksoftirqd/309:31:383
8892993428,3cyclictest41-21ksoftirqd/308:40:123
8892993428,3cyclictest22977-21cron10:54:593
8891993429,3cyclictest33-21ksoftirqd/210:25:122
8891993428,4cyclictest33-21ksoftirqd/212:25:472
8891993428,4cyclictest33-21ksoftirqd/212:22:422
8891993428,4cyclictest33-21ksoftirqd/210:45:462
8891993428,4cyclictest33-21ksoftirqd/210:00:172
8891993428,4cyclictest33-21ksoftirqd/209:03:322
8890993428,4cyclictest25-21ksoftirqd/112:06:081
8890993428,4cyclictest25-21ksoftirqd/111:59:191
8890993428,4cyclictest25-21ksoftirqd/111:59:181
8890993428,4cyclictest25-21ksoftirqd/111:52:541
8890993428,4cyclictest25-21ksoftirqd/111:40:411
8890993428,4cyclictest25-21ksoftirqd/111:10:401
8890993428,4cyclictest25-21ksoftirqd/110:34:461
8890993428,4cyclictest25-21ksoftirqd/110:21:351
8890993428,4cyclictest25-21ksoftirqd/109:58:201
8890993428,4cyclictest25-21ksoftirqd/108:12:011
8890993428,3cyclictest27786-21md.daily11:03:241
8890993427,5cyclictest25-21ksoftirqd/107:59:371
8890993427,4cyclictest25-21ksoftirqd/110:40:111
8889993429,3cyclictest9-21ksoftirqd/011:00:000
8889993428,4cyclictest9-21ksoftirqd/011:45:500
8889993428,4cyclictest9-21ksoftirqd/011:31:020
8889993428,4cyclictest9-21ksoftirqd/010:16:360
8889993428,4cyclictest9-21ksoftirqd/009:21:160
8892993328,3cyclictest41-21ksoftirqd/312:29:253
8892993328,3cyclictest41-21ksoftirqd/311:40:053
8892993327,4cyclictest41-21ksoftirqd/309:49:313
8892993327,4cyclictest41-21ksoftirqd/309:49:313
8892993327,4cyclictest41-21ksoftirqd/307:49:083
8891993328,3cyclictest33-21ksoftirqd/210:17:322
8891993328,3cyclictest33-21ksoftirqd/207:20:112
8891993327,4cyclictest33-21ksoftirqd/211:07:492
8891993327,4cyclictest33-21ksoftirqd/210:10:412
8891993327,4cyclictest33-21ksoftirqd/209:06:022
8891993327,4cyclictest33-21ksoftirqd/208:53:382
8891993327,3cyclictest33-21ksoftirqd/211:21:402
8890993328,3cyclictest25-21ksoftirqd/107:12:021
8890993327,4cyclictest25-21ksoftirqd/112:16:281
8890993327,4cyclictest25-21ksoftirqd/110:25:041
8890993327,4cyclictest25-21ksoftirqd/110:08:501
8890993327,4cyclictest25-21ksoftirqd/108:57:381
8889993328,3cyclictest9-21ksoftirqd/011:30:010
8889993328,3cyclictest9-21ksoftirqd/007:57:150
8889993327,4cyclictest9-21ksoftirqd/011:38:040
8889993327,4cyclictest9-21ksoftirqd/011:10:360
8889993327,4cyclictest9-21ksoftirqd/010:36:580
8889993327,4cyclictest9-21ksoftirqd/010:30:280
8889993327,4cyclictest9-21ksoftirqd/009:44:430
8889993327,4cyclictest9-21ksoftirqd/008:18:290
8889993327,4cyclictest9-21ksoftirqd/008:13:440
8889993327,4cyclictest9-21ksoftirqd/007:19:320
8889993327,4cyclictest9-21ksoftirqd/007:11:580
138491330,0ptp4l401ktimersoftd/307:22:563
8892993227,3cyclictest41-21ksoftirqd/309:19:023
8892993227,3cyclictest41-21ksoftirqd/309:07:203
8892993227,3cyclictest41-21ksoftirqd/308:31:573
8892993226,4cyclictest41-21ksoftirqd/312:37:363
8892993226,4cyclictest41-21ksoftirqd/311:12:353
8892993226,4cyclictest41-21ksoftirqd/309:59:423
8892993226,4cyclictest41-21ksoftirqd/309:54:373
8892993226,4cyclictest41-21ksoftirqd/308:52:273
8892993226,4cyclictest41-21ksoftirqd/308:25:433
8892993226,4cyclictest41-21ksoftirqd/307:26:133
8892993226,4cyclictest41-21ksoftirqd/307:26:133
8892993226,3cyclictest41-21ksoftirqd/308:37:463
8892993225,5cyclictest41-21ksoftirqd/309:29:173
8891993227,3cyclictest33-21ksoftirqd/212:19:592
8891993227,3cyclictest33-21ksoftirqd/209:26:082
8891993227,3cyclictest33-21ksoftirqd/207:36:002
8891993227,3cyclictest33-21ksoftirqd/207:30:252
8891993226,4cyclictest33-21ksoftirqd/211:30:082
8891993226,4cyclictest33-21ksoftirqd/210:55:382
8891993226,4cyclictest33-21ksoftirqd/210:33:432
8891993226,4cyclictest33-21ksoftirqd/210:20:472
8891993226,4cyclictest33-21ksoftirqd/209:44:572
8891993226,4cyclictest33-21ksoftirqd/208:07:202
8891993226,4cyclictest33-21ksoftirqd/208:07:202
8891993224,5cyclictest33-21ksoftirqd/208:45:132
8890993227,3cyclictest25-21ksoftirqd/109:50:101
8890993227,3cyclictest25-21ksoftirqd/109:31:541
8890993227,3cyclictest25-21ksoftirqd/108:50:081
8890993226,4cyclictest25-21ksoftirqd/110:45:461
8890993226,4cyclictest25-21ksoftirqd/109:47:331
8890993226,4cyclictest25-21ksoftirqd/109:47:331
8890993226,4cyclictest25-21ksoftirqd/109:17:041
8890993226,4cyclictest25-21ksoftirqd/109:09:261
8890993226,4cyclictest25-21ksoftirqd/109:04:041
8890993226,4cyclictest25-21ksoftirqd/108:49:201
8890993226,4cyclictest25-21ksoftirqd/107:41:391
8890993226,4cyclictest25-21ksoftirqd/107:21:221
8889993228,2cyclictest9-21ksoftirqd/012:19:590
8889993227,3cyclictest9-21ksoftirqd/009:06:520
8889993227,3cyclictest9-21ksoftirqd/008:39:430
8889993226,4cyclictest9-21ksoftirqd/012:36:050
8889993226,4cyclictest9-21ksoftirqd/012:24:450
8889993226,4cyclictest9-21ksoftirqd/010:54:590
8889993226,4cyclictest9-21ksoftirqd/010:04:050
8889993226,4cyclictest9-21ksoftirqd/009:30:310
8889993226,4cyclictest9-21ksoftirqd/007:26:380
8889993226,4cyclictest9-21ksoftirqd/007:26:380
138491320,10ptp4l401ktimersoftd/307:39:163
138491320,10ptp4l0-21swapper/310:30:303
138491320,0ptp4l401ktimersoftd/312:30:183
138491320,0ptp4l401ktimersoftd/310:04:203
138491320,0ptp4l401ktimersoftd/309:35:223
8892993126,3cyclictest41-21ksoftirqd/307:57:593
8892993125,4cyclictest41-21ksoftirqd/312:23:123
8891993126,3cyclictest33-21ksoftirqd/208:55:372
8891993126,3cyclictest33-21ksoftirqd/208:11:022
8891993126,3cyclictest1303-21runrttasks08:23:272
8891993125,4cyclictest33-21ksoftirqd/211:53:252
8891993125,4cyclictest33-21ksoftirqd/208:00:542
8891993125,4cyclictest33-21ksoftirqd/207:47:232
8891993125,4cyclictest33-21ksoftirqd/207:27:332
8891993125,4cyclictest33-21ksoftirqd/207:27:322
8890993126,3cyclictest25-21ksoftirqd/107:32:521
8890993125,4cyclictest25-21ksoftirqd/108:30:421
8890993125,4cyclictest25-21ksoftirqd/108:09:121
8890993125,4cyclictest25-21ksoftirqd/108:09:121
8890993125,4cyclictest25-21ksoftirqd/107:54:401
8889993125,4cyclictest9-21ksoftirqd/008:57:010
138491310,0ptp4l401ktimersoftd/308:17:583
8892993025,3cyclictest41-21ksoftirqd/312:15:543
8892993024,4cyclictest41-21ksoftirqd/310:46:283
8892993024,3cyclictest41-21ksoftirqd/307:16:343
8891993025,3cyclictest33-21ksoftirqd/209:51:262
8891993025,3cyclictest33-21ksoftirqd/208:44:542
8891993024,4cyclictest33-21ksoftirqd/210:36:282
8891993024,4cyclictest33-21ksoftirqd/209:46:012
8891993024,4cyclictest33-21ksoftirqd/209:46:002
8890993025,3cyclictest25-21ksoftirqd/112:12:301
8890993025,3cyclictest25-21ksoftirqd/110:56:511
8890993025,3cyclictest25-21ksoftirqd/107:26:271
8890993025,3cyclictest25-21ksoftirqd/107:26:271
8890993024,4cyclictest25-21ksoftirqd/112:33:041
8890993024,4cyclictest25-21ksoftirqd/111:20:311
8890993024,4cyclictest25-21ksoftirqd/110:39:431
8889993025,3cyclictest9-21ksoftirqd/012:26:210
8889993025,3cyclictest9-21ksoftirqd/007:42:000
8889993025,3cyclictest9-21ksoftirqd/007:31:110
8889993024,4cyclictest9-21ksoftirqd/009:47:080
8889993024,4cyclictest9-21ksoftirqd/009:47:070
8889993024,4cyclictest9-21ksoftirqd/008:33:580
8889993024,4cyclictest9-21ksoftirqd/007:48:250
8889993024,4cyclictest9-21ksoftirqd/007:21:170
8889993023,5cyclictest9-21ksoftirqd/009:16:350
138491300,9ptp4l401ktimersoftd/307:14:523
138491300,0ptp4l401ktimersoftd/312:11:193
138491300,0ptp4l401ktimersoftd/311:30:173
138491300,0ptp4l401ktimersoftd/310:15:163
138491300,0ptp4l401ktimersoftd/310:08:443
8892992924,3cyclictest41-21ksoftirqd/309:12:593
8892992923,4cyclictest41-21ksoftirqd/311:37:103
8891992924,3cyclictest33-21ksoftirqd/207:57:382
8890992924,3cyclictest25-21ksoftirqd/112:24:511
8890992924,3cyclictest25-21ksoftirqd/110:52:551
8890992924,3cyclictest25-21ksoftirqd/110:13:341
8890992923,4cyclictest25-21ksoftirqd/111:46:561
8890992923,4cyclictest25-21ksoftirqd/108:00:491
8890992923,4cyclictest25-21ksoftirqd/107:16:001
8889992924,3cyclictest9-21ksoftirqd/010:14:400
8889992924,3cyclictest9-21ksoftirqd/010:06:330
8889992924,3cyclictest9-21ksoftirqd/009:38:140
8889992923,4cyclictest9-21ksoftirqd/009:59:340
8889992923,4cyclictest9-21ksoftirqd/008:45:090
8889992923,4cyclictest9-21ksoftirqd/008:23:470
8889992923,4cyclictest9-21ksoftirqd/008:04:090
8892992823,3cyclictest41-21ksoftirqd/311:54:453
8892992823,3cyclictest41-21ksoftirqd/311:15:193
8892992822,4cyclictest41-21ksoftirqd/310:58:273
8891992823,3cyclictest33-21ksoftirqd/210:51:452
8891992822,4cyclictest33-21ksoftirqd/212:34:272
8891992822,4cyclictest33-21ksoftirqd/212:01:332
8891992822,4cyclictest33-21ksoftirqd/208:15:512
889199280,2cyclictest121rcu_preempt09:20:152
8890992821,5cyclictest25-21ksoftirqd/108:22:041
8890992821,4cyclictest25-21ksoftirqd/108:39:531
8889992823,3cyclictest9-21ksoftirqd/010:40:260
8889992822,4cyclictest9-21ksoftirqd/012:05:440
8889992822,4cyclictest9-21ksoftirqd/011:40:530
8889992822,4cyclictest9-21ksoftirqd/010:21:410
138491280,0ptp4l401ktimersoftd/310:37:583
8891992722,3cyclictest33-21ksoftirqd/211:55:552
8891992722,3cyclictest33-21ksoftirqd/211:55:542
8891992721,4cyclictest33-21ksoftirqd/209:15:002
8890992722,3cyclictest25-21ksoftirqd/112:39:211
8890992721,3cyclictest25-21ksoftirqd/112:04:031
8889992722,3cyclictest9-21ksoftirqd/011:51:540
8889992722,3cyclictest9-21ksoftirqd/011:18:470
8889992722,3cyclictest9-21ksoftirqd/011:04:170
8889992722,3cyclictest9-21ksoftirqd/009:53:290
8889992722,3cyclictest9-21ksoftirqd/009:01:000
8889992722,3cyclictest9-21ksoftirqd/007:54:240
8889992721,4cyclictest9-21ksoftirqd/008:26:000
138491270,0ptp4l401ktimersoftd/311:57:323
138491270,0ptp4l401ktimersoftd/311:57:313
8891992622,3cyclictest33-21ksoftirqd/211:48:252
8891992621,3cyclictest33-21ksoftirqd/208:30:112
8890992621,3cyclictest25-21ksoftirqd/109:27:461
8890992620,4cyclictest25-21ksoftirqd/107:39:151
8889992621,3cyclictest9-21ksoftirqd/010:27:140
8889992621,3cyclictest9-21ksoftirqd/009:29:210
8889992620,4cyclictest9-21ksoftirqd/012:14:100
8889992620,4cyclictest9-21ksoftirqd/007:37:180
8891992520,3cyclictest33-21ksoftirqd/211:25:192
8891992520,3cyclictest33-21ksoftirqd/210:09:462
8891992520,3cyclictest33-21ksoftirqd/209:33:002
8890992520,3cyclictest25-21ksoftirqd/108:16:301
8890992519,4cyclictest25-21ksoftirqd/112:29:361
8889992520,3cyclictest9-21ksoftirqd/011:05:430
8889992519,4cyclictest9-21ksoftirqd/008:09:070
8889992519,4cyclictest9-21ksoftirqd/008:09:070
138491250,0ptp4l401ktimersoftd/311:45:133
8892992419,3cyclictest41-21ksoftirqd/307:30:133
8891992419,3cyclictest33-21ksoftirqd/208:28:092
8889992419,3cyclictest9-21ksoftirqd/008:53:360
8891992318,3cyclictest33-21ksoftirqd/209:18:402
889199210,18cyclictest8336-21apt-get12:35:052
8890992015,3cyclictest25-21ksoftirqd/108:40:121
8889991711,3cyclictest18431-21cpuspeed_turbos10:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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