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2026-04-07 - 01:45
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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 rackdslot4.osadl.org (updated Mon Apr 06, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
84892206172,23sleep10-21swapper/107:08:581
84432203170,22sleep20-21swapper/207:08:232
138591201167,23phc2sys0-21swapper/307:09:573
63632199166,22sleep00-21swapper/007:05:110
946321620,6sleep1886899cyclictest08:15:161
946321620,6sleep1886899cyclictest08:15:161
1522921370,4sleep2886999cyclictest09:30:192
138491710,1ptp4l401ktimersoftd/310:59:283
325772600,3sleep10-21swapper/112:15:211
8869995928,6cyclictest33-21ksoftirqd/208:45:162
8869995823,6cyclictest33-21ksoftirqd/210:50:192
886899581,17cyclictest7811-21/usr/sbin/munin08:10:241
8869995729,7cyclictest33-21ksoftirqd/209:45:182
8869995724,6cyclictest33-21ksoftirqd/210:20:132
8869995528,3cyclictest33-21ksoftirqd/211:05:182
8869995524,9cyclictest33-21ksoftirqd/210:45:002
8869995512,12cyclictest33-21ksoftirqd/208:40:262
8869995425,3cyclictest33-21ksoftirqd/208:20:002
8869995425,3cyclictest33-21ksoftirqd/208:20:002
8869995421,6cyclictest33-21ksoftirqd/210:15:002
886999540,2cyclictest121rcu_preempt10:10:002
138491540,1ptp4l20781-21ls09:40:233
8869995326,4cyclictest33-21ksoftirqd/209:35:222
8869995323,7cyclictest33-21ksoftirqd/212:00:182
8869995323,4cyclictest33-21ksoftirqd/210:05:012
8869995322,4cyclictest33-21ksoftirqd/208:50:252
8869995321,10cyclictest33-21ksoftirqd/207:25:262
8869995320,6cyclictest33-21ksoftirqd/211:55:222
8869995320,6cyclictest33-21ksoftirqd/211:40:182
8869995320,5cyclictest33-21ksoftirqd/211:10:272
8869995319,6cyclictest33-21ksoftirqd/209:10:232
8869995319,4cyclictest33-21ksoftirqd/211:15:262
8869995318,7cyclictest33-21ksoftirqd/211:55:012
8869995318,6cyclictest33-21ksoftirqd/210:45:162
8869995318,5cyclictest33-21ksoftirqd/212:20:222
8869995315,6cyclictest33-21ksoftirqd/211:20:242
8869995315,4cyclictest33-21ksoftirqd/208:05:172
117552530,5sleep09-21ksoftirqd/011:35:120
8869995220,6cyclictest33-21ksoftirqd/211:30:242
8869995220,4cyclictest33-21ksoftirqd/207:35:122
8869995219,6cyclictest33-21ksoftirqd/209:05:142
8869995219,6cyclictest33-21ksoftirqd/209:00:012
8869995218,6cyclictest33-21ksoftirqd/211:35:112
8869995218,6cyclictest33-21ksoftirqd/209:25:272
8869995218,6cyclictest33-21ksoftirqd/208:30:192
8869995217,6cyclictest33-21ksoftirqd/212:05:192
8869995215,6cyclictest33-21ksoftirqd/208:15:002
303352520,2sleep30-21swapper/312:10:223
8869995123,3cyclictest33-21ksoftirqd/207:50:082
8869995119,6cyclictest33-21ksoftirqd/208:00:252
8869995118,5cyclictest33-21ksoftirqd/209:15:242
8869995117,5cyclictest33-21ksoftirqd/207:30:252
8869995116,6cyclictest33-21ksoftirqd/207:10:172
8869995116,10cyclictest33-21ksoftirqd/211:45:172
8869995115,6cyclictest33-21ksoftirqd/208:20:242
8869995115,5cyclictest33-21ksoftirqd/210:55:162
147622510,4sleep314768-21irqrtprio10:35:193
134991510,6getstats0-21swapper/309:06:453
8869995022,4cyclictest33-21ksoftirqd/209:00:122
8869995021,4cyclictest33-21ksoftirqd/208:35:232
8869995020,6cyclictest33-21ksoftirqd/211:30:012
8869995019,3cyclictest33-21ksoftirqd/210:25:262
8869995018,6cyclictest33-21ksoftirqd/207:45:142
8869995018,5cyclictest33-21ksoftirqd/209:25:002
8869995018,5cyclictest33-21ksoftirqd/208:25:132
8869995015,6cyclictest33-21ksoftirqd/211:00:132
8869995015,5cyclictest33-21ksoftirqd/209:55:252
314112500,2sleep00-21swapper/010:05:110
8869994921,3cyclictest33-21ksoftirqd/207:20:202
8869994920,4cyclictest33-21ksoftirqd/207:40:242
8869994915,4cyclictest33-21ksoftirqd/212:35:152
8869994914,6cyclictest33-21ksoftirqd/212:15:152
134991490,6getstats0-21swapper/309:11:453
8869994824,6cyclictest33-21ksoftirqd/212:10:152
8869994818,9cyclictest33-21ksoftirqd/210:35:262
8869994818,5cyclictest33-21ksoftirqd/207:55:142
259132480,2sleep30-21swapper/312:00:513
886999472,6cyclictest33-21ksoftirqd/212:25:162
8869994716,6cyclictest33-21ksoftirqd/210:15:292
8869994715,6cyclictest33-21ksoftirqd/207:15:122
8869994615,9cyclictest33-21ksoftirqd/210:30:262
8869994613,4cyclictest33-21ksoftirqd/209:50:142
886899460,9cyclictest21303-21cat11:55:011
8869994513,5cyclictest33-21ksoftirqd/209:40:162
8870994432,10cyclictest41-21ksoftirqd/308:17:593
8870994432,10cyclictest41-21ksoftirqd/308:17:593
886899441,8cyclictest2315-21gnome-shell08:31:581
886999430,4cyclictest8739-21perf12:35:012
138491430,0ptp4l401ktimersoftd/307:53:053
138491420,0ptp4l401ktimersoftd/307:44:563
886899410,8cyclictest9795-21perl09:20:151
886899410,17cyclictest2726-21python08:00:241
138491410,0ptp4l401ktimersoftd/312:20:293
138491410,0ptp4l401ktimersoftd/311:45:053
886899401,8cyclictest27287-21memory07:45:211
886899401,7cyclictest19324-21hddtemp_smartct07:30:151
886899401,7cyclictest16743-21df_inode07:25:141
886899401,16cyclictest2315-21gnome-shell11:11:591
886899400,8cyclictest30784-21users10:00:281
8868993933,3cyclictest11895-21hwlatdetect11:35:151
886899391,8cyclictest10727-21users07:10:271
886899390,7cyclictest4383-21diskstats11:20:151
138491390,0ptp4l401ktimersoftd/310:14:553
886899381,8cyclictest24471-21hddtemp_smartct10:55:171
886899381,7cyclictest16943-21df09:35:131
886899380,7cyclictest32194-21memory07:55:201
8867993832,4cyclictest9-21ksoftirqd/011:20:000
8870993732,3cyclictest41-21ksoftirqd/312:19:593
8870993731,4cyclictest41-21ksoftirqd/309:53:033
886899371,8cyclictest12394-21iostat09:25:181
886899370,8cyclictest22453-21meminfo11:55:201
8867993732,3cyclictest28627-21idleruntime-cro11:05:010
8870993630,4cyclictest41-21ksoftirqd/307:47:463
8868993629,4cyclictest25-21ksoftirqd/112:22:591
8868993629,4cyclictest25-21ksoftirqd/109:16:581
8867993630,4cyclictest9-21ksoftirqd/008:40:350
8867993629,5cyclictest9-21ksoftirqd/010:15:020
8870993531,2cyclictest41-21ksoftirqd/308:12:403
8870993529,4cyclictest41-21ksoftirqd/310:47:023
8870993529,4cyclictest41-21ksoftirqd/310:43:123
8870993529,4cyclictest41-21ksoftirqd/310:31:263
8870993529,4cyclictest41-21ksoftirqd/308:50:333
8870993529,3cyclictest41-21ksoftirqd/308:35:003
8868993530,3cyclictest25-21ksoftirqd/111:15:181
8868993529,4cyclictest25-21ksoftirqd/109:14:181
886899351,14cyclictest28874-21apt11:05:111
8867993529,4cyclictest9-21ksoftirqd/012:13:170
8867993529,4cyclictest9-21ksoftirqd/010:51:330
8867993529,4cyclictest9-21ksoftirqd/010:28:460
8867993529,4cyclictest9-21ksoftirqd/010:12:450
8867993529,4cyclictest9-21ksoftirqd/009:00:320
8867993529,4cyclictest9-21ksoftirqd/008:37:110
8867993529,4cyclictest9-21ksoftirqd/008:12:550
8867993529,4cyclictest9-21ksoftirqd/007:54:180
8867993529,4cyclictest9-21ksoftirqd/007:16:060
50798350,2rtkit-daemon506-21rtkit-daemon12:08:070
8870993429,3cyclictest41-21ksoftirqd/308:22:423
8870993428,4cyclictest41-21ksoftirqd/311:27:303
8870993428,4cyclictest41-21ksoftirqd/311:22:493
8870993428,4cyclictest41-21ksoftirqd/311:08:013
8870993428,4cyclictest41-21ksoftirqd/309:55:033
8870993428,4cyclictest41-21ksoftirqd/309:37:383
8870993428,4cyclictest41-21ksoftirqd/309:00:353
8870993428,4cyclictest41-21ksoftirqd/308:35:363
8868993428,4cyclictest25-21ksoftirqd/112:26:251
8868993428,4cyclictest25-21ksoftirqd/108:38:351
8868993428,4cyclictest25-21ksoftirqd/107:23:581
886899340,7cyclictest24966-21irqstats09:50:201
8867993429,3cyclictest9-21ksoftirqd/012:39:430
8867993429,3cyclictest9-21ksoftirqd/008:54:430
8867993429,3cyclictest9-21ksoftirqd/008:05:130
8867993428,4cyclictest9-21ksoftirqd/011:30:320
8867993428,4cyclictest9-21ksoftirqd/009:43:250
8867993428,4cyclictest9-21ksoftirqd/009:29:170
8867993428,4cyclictest9-21ksoftirqd/008:45:480
8867993428,4cyclictest9-21ksoftirqd/008:20:290
8867993428,4cyclictest9-21ksoftirqd/007:29:180
8867993427,4cyclictest9-21ksoftirqd/011:25:000
8870993327,4cyclictest41-21ksoftirqd/312:31:573
8870993327,4cyclictest41-21ksoftirqd/311:59:183
8870993327,4cyclictest41-21ksoftirqd/311:14:263
8870993327,4cyclictest41-21ksoftirqd/308:45:313
8870993327,4cyclictest41-21ksoftirqd/307:31:013
8868993329,3cyclictest25-21ksoftirqd/111:30:581
8868993328,3cyclictest25-21ksoftirqd/108:50:171
8868993327,3cyclictest25-21ksoftirqd/110:28:501
8867993328,3cyclictest9-21ksoftirqd/011:42:280
8867993327,4cyclictest9-21ksoftirqd/012:03:540
8867993327,4cyclictest9-21ksoftirqd/011:52:590
8867993327,4cyclictest9-21ksoftirqd/011:06:410
8867993327,4cyclictest9-21ksoftirqd/009:05:420
8867993327,4cyclictest9-21ksoftirqd/007:10:490
8867993326,4cyclictest9-21ksoftirqd/010:58:230
8867993326,4cyclictest9-21ksoftirqd/010:33:320
138491330,0ptp4l401ktimersoftd/309:27:513
8870993227,3cyclictest41-21ksoftirqd/312:38:243
8870993227,3cyclictest41-21ksoftirqd/311:20:003
8870993227,3cyclictest41-21ksoftirqd/309:32:413
8870993227,3cyclictest41-21ksoftirqd/307:28:143
8870993226,4cyclictest41-21ksoftirqd/312:29:363
8870993226,4cyclictest41-21ksoftirqd/311:35:493
8870993226,4cyclictest41-21ksoftirqd/310:20:393
8870993226,4cyclictest41-21ksoftirqd/309:46:293
8870993226,4cyclictest41-21ksoftirqd/309:22:383
8870993226,4cyclictest41-21ksoftirqd/308:43:263
8870993226,4cyclictest41-21ksoftirqd/307:57:253
8870993226,4cyclictest41-21ksoftirqd/307:10:533
8868993227,3cyclictest25-21ksoftirqd/108:08:131
8868993226,4cyclictest25-21ksoftirqd/110:12:551
8868993226,4cyclictest25-21ksoftirqd/109:33:511
8868993226,4cyclictest25-21ksoftirqd/108:40:401
8868993226,4cyclictest25-21ksoftirqd/107:53:541
8868993226,3cyclictest25-21ksoftirqd/109:55:581
8868993225,4cyclictest25-21ksoftirqd/110:51:021
8868993225,4cyclictest25-21ksoftirqd/108:56:401
8867993227,3cyclictest9-21ksoftirqd/009:54:550
8867993226,4cyclictest9-21ksoftirqd/011:59:080
8867993226,4cyclictest9-21ksoftirqd/011:14:060
8867993226,4cyclictest9-21ksoftirqd/010:48:520
8867993226,4cyclictest9-21ksoftirqd/009:56:170
8867993226,4cyclictest9-21ksoftirqd/009:45:500
8867993226,4cyclictest9-21ksoftirqd/009:18:500
8867993226,4cyclictest9-21ksoftirqd/008:25:420
275202320,5sleep125-21ksoftirqd/111:00:201
138491320,0ptp4l401ktimersoftd/310:16:343
8870993127,2cyclictest41-21ksoftirqd/311:30:203
8870993125,4cyclictest41-21ksoftirqd/310:26:123
8868993126,3cyclictest25-21ksoftirqd/110:19:481
8868993126,3cyclictest25-21ksoftirqd/109:50:001
8868993125,4cyclictest25-21ksoftirqd/112:30:101
8868993125,4cyclictest25-21ksoftirqd/110:45:161
8868993125,4cyclictest25-21ksoftirqd/110:43:511
8868993125,4cyclictest25-21ksoftirqd/108:46:411
8867993126,3cyclictest9-21ksoftirqd/007:39:270
8867993125,4cyclictest9-21ksoftirqd/007:58:380
8867993125,3cyclictest9-21ksoftirqd/007:40:240
138491310,0ptp4l401ktimersoftd/310:00:173
138491310,0ptp4l401ktimersoftd/307:35:203
8870993025,3cyclictest41-21ksoftirqd/311:02:043
8870993025,3cyclictest41-21ksoftirqd/308:07:083
8870993025,3cyclictest41-21ksoftirqd/308:04:073
8870993025,3cyclictest41-21ksoftirqd/307:15:113
8868993025,3cyclictest25-21ksoftirqd/107:42:151
8868993024,4cyclictest25-21ksoftirqd/112:06:391
8868993024,4cyclictest25-21ksoftirqd/110:23:051
886899300,2cyclictest121rcu_preempt10:39:131
886899300,29cyclictest0-21swapper/107:15:231
8867993025,3cyclictest9-21ksoftirqd/008:00:470
8867993025,3cyclictest9-21ksoftirqd/007:32:570
8867993024,4cyclictest9-21ksoftirqd/012:31:220
8867993024,4cyclictest9-21ksoftirqd/011:26:430
8867993024,4cyclictest9-21ksoftirqd/010:21:360
8867993024,4cyclictest9-21ksoftirqd/010:04:310
8867993024,4cyclictest9-21ksoftirqd/009:30:370
138491300,0ptp4l401ktimersoftd/308:58:393
138491300,0ptp4l401ktimersoftd/308:29:053
8870992923,3cyclictest41-21ksoftirqd/312:06:353
8870992922,4cyclictest41-21ksoftirqd/310:05:243
8868992923,4cyclictest25-21ksoftirqd/111:46:181
8868992923,4cyclictest25-21ksoftirqd/111:43:451
8868992923,4cyclictest25-21ksoftirqd/111:26:401
8867992924,3cyclictest9-21ksoftirqd/012:15:120
8867992924,3cyclictest9-21ksoftirqd/009:38:520
8867992924,3cyclictest9-21ksoftirqd/007:21:060
8867992923,4cyclictest9-21ksoftirqd/010:42:140
8867992923,4cyclictest9-21ksoftirqd/009:14:290
8870992823,3cyclictest41-21ksoftirqd/310:51:413
8868992822,4cyclictest25-21ksoftirqd/109:41:531
8868992822,4cyclictest25-21ksoftirqd/107:38:091
8867992822,4cyclictest9-21ksoftirqd/011:49:300
8867992822,4cyclictest9-21ksoftirqd/008:15:510
8867992822,4cyclictest9-21ksoftirqd/008:15:510
8867992822,4cyclictest9-21ksoftirqd/007:46:360
138491280,7ptp4l401ktimersoftd/309:19:113
8870992722,3cyclictest41-21ksoftirqd/311:40:323
8870992721,3cyclictest41-21ksoftirqd/311:53:273
8868992723,3cyclictest25-21ksoftirqd/108:25:161
8868992722,3cyclictest25-21ksoftirqd/112:35:521
8868992722,3cyclictest25-21ksoftirqd/112:00:111
8868992721,4cyclictest25-21ksoftirqd/109:05:511
886899270,15cyclictest30175-21ls12:10:201
8867992721,4cyclictest9-21ksoftirqd/012:29:410
8867992721,4cyclictest9-21ksoftirqd/010:36:520
8868992620,4cyclictest25-21ksoftirqd/110:08:131
8867992621,3cyclictest9-21ksoftirqd/008:56:230
8867992520,3cyclictest9-21ksoftirqd/012:20:270
8867992519,4cyclictest9-21ksoftirqd/009:20:460
8870992419,3cyclictest41-21ksoftirqd/307:24:233
8868992419,3cyclictest25-21ksoftirqd/108:20:201
8868992318,3cyclictest25-21ksoftirqd/110:30:451
8868992317,4cyclictest25-21ksoftirqd/109:02:061
8867992317,4cyclictest9-21ksoftirqd/008:31:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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