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2026-01-04 - 01:25
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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 highest latencies:
System rackdslot1.osadl.org (updated Sat Jan 03, 2026 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30967997335,5cyclictest33-21ksoftirqd/208:25:202
30967996736,7cyclictest33-21ksoftirqd/211:10:002
3096899655,11cyclictest11646-21sort07:35:343
3096899655,11cyclictest11646-21sort07:35:343
30967996533,3cyclictest33-21ksoftirqd/212:00:292
30967996530,7cyclictest33-21ksoftirqd/210:35:132
30967996530,5cyclictest33-21ksoftirqd/211:39:592
3096899648,17cyclictest25672-21grep11:35:153
30967996428,4cyclictest33-21ksoftirqd/211:40:222
134491640,3ptp4l17343-21sed12:25:211
3096899637,9cyclictest11071-21irqrtprio08:45:193
30967996333,4cyclictest33-21ksoftirqd/207:30:142
30967996331,5cyclictest33-21ksoftirqd/209:15:192
30967996331,4cyclictest33-21ksoftirqd/209:34:592
30967996330,6cyclictest33-21ksoftirqd/209:29:592
30967996328,4cyclictest33-21ksoftirqd/209:10:252
3096899627,11cyclictest14619-21switchtime10:00:273
3096899622,17cyclictest0-21swapper/312:15:003
30967996231,8cyclictest33-21ksoftirqd/209:00:192
30967996230,6cyclictest33-21ksoftirqd/211:25:222
30967996227,5cyclictest33-21ksoftirqd/207:30:002
3096899616,11cyclictest32310-21mailstats07:10:263
30968996110,11cyclictest24433-21chrt10:21:203
30967996129,6cyclictest33-21ksoftirqd/212:30:132
30967996128,6cyclictest33-21ksoftirqd/212:35:252
30967996126,6cyclictest33-21ksoftirqd/210:10:132
30967996125,4cyclictest33-21ksoftirqd/210:25:262
30967996121,6cyclictest33-21ksoftirqd/208:35:192
134491610,4ptp4l0-21swapper/209:05:012
3096899606,10cyclictest0-21swapper/311:05:283
3096899605,17cyclictest0-21swapper/311:15:263
30967996032,7cyclictest33-21ksoftirqd/208:30:142
30967996029,5cyclictest33-21ksoftirqd/208:00:172
30967996027,7cyclictest33-21ksoftirqd/207:15:152
30967996026,9cyclictest33-21ksoftirqd/209:49:592
30967996026,7cyclictest33-21ksoftirqd/208:55:152
30967996026,5cyclictest33-21ksoftirqd/207:40:252
30967996025,6cyclictest33-21ksoftirqd/212:15:302
30967996024,6cyclictest33-21ksoftirqd/207:35:272
30967996024,6cyclictest33-21ksoftirqd/207:35:272
3096899597,11cyclictest16253-21cut10:05:193
3096899595,16cyclictest18001-21seq12:25:293
3096899595,11cyclictest3580-21cpuspeed08:30:133
30967995933,6cyclictest33-21ksoftirqd/212:20:142
30967995932,6cyclictest33-21ksoftirqd/210:15:232
30967995930,3cyclictest33-21ksoftirqd/210:05:182
30967995929,5cyclictest33-21ksoftirqd/211:55:222
30967995929,3cyclictest33-21ksoftirqd/210:50:272
30967995928,6cyclictest33-21ksoftirqd/208:05:272
30967995924,5cyclictest33-21ksoftirqd/211:15:152
134491590,4ptp4l0-21swapper/011:58:240
134491590,3ptp4l0-21swapper/211:22:462
3096899589,15cyclictest17988-21tr09:00:173
3096899588,9cyclictest2938-21mailstats09:35:273
3096899586,11cyclictest0-21swapper/312:25:003
3096899583,11cyclictest7933-21latency_hist08:40:003
30967995828,5cyclictest33-21ksoftirqd/208:15:282
30967995828,3cyclictest33-21ksoftirqd/211:45:162
30967995827,6cyclictest33-21ksoftirqd/210:00:162
30967995826,9cyclictest33-21ksoftirqd/211:10:132
30967995826,6cyclictest33-21ksoftirqd/209:55:012
30967995825,6cyclictest33-21ksoftirqd/211:50:192
30967995825,5cyclictest33-21ksoftirqd/210:20:132
30967995824,6cyclictest33-21ksoftirqd/209:40:122
134491580,4ptp4l0-21swapper/007:25:170
3096899578,11cyclictest781-21ntpq10:40:223
3096899577,10cyclictest7797-21cat09:45:273
3096899575,8cyclictest27944-21cat08:10:273
3096899575,14cyclictest0-21swapper/312:00:253
3096899575,12cyclictest30701-21sort10:35:173
3096899574,10cyclictest26830-21/usr/sbin/munin09:20:163
30967995728,5cyclictest33-21ksoftirqd/212:25:202
30967995728,5cyclictest33-21ksoftirqd/210:45:192
30967995726,5cyclictest33-21ksoftirqd/207:50:262
30967995726,5cyclictest33-21ksoftirqd/207:20:192
30967995725,6cyclictest33-21ksoftirqd/207:10:162
30967995725,4cyclictest33-21ksoftirqd/211:00:182
134491570,5ptp4l0-21swapper/111:50:141
134491570,3ptp4l0-21swapper/110:50:191
134491570,3ptp4l0-21swapper/108:15:221
3096899568,16cyclictest22143-21ntp_states12:35:243
3096899565,10cyclictest21440-21sed09:05:243
3096899564,16cyclictest1107-21/usr/sbin/munin08:25:173
3096899564,12cyclictest1884-21cat07:15:223
3096899564,11cyclictest31077-21cat08:20:003
30967995626,3cyclictest33-21ksoftirqd/209:20:182
30967995624,6cyclictest33-21ksoftirqd/212:05:172
30967995623,4cyclictest33-21ksoftirqd/211:00:012
134491560,3ptp4l0-21swapper/107:43:441
134491560,3ptp4l0-21swapper/012:25:010
3096899557,6cyclictest0-21swapper/307:41:363
3096899555,10cyclictest0-21swapper/307:25:163
30967995524,4cyclictest33-21ksoftirqd/207:55:212
30967995522,5cyclictest33-21ksoftirqd/209:55:212
137891556,41phc2sys2318-21gnome-shell07:08:583
134491550,4ptp4l0-21swapper/112:15:191
134491550,4ptp4l0-21swapper/111:26:241
134491550,4ptp4l0-21swapper/010:55:340
134491550,3ptp4l0-21swapper/111:38:241
134491550,3ptp4l0-21swapper/008:10:230
3096899547,11cyclictest0-21swapper/312:30:193
3096899546,16cyclictest0-21swapper/311:45:183
3096899544,12cyclictest21000-21/usr/sbin/munin11:25:133
3096899543,10cyclictest0-21swapper/308:00:223
3096899542,16cyclictest0-21swapper/307:24:593
30967995422,16cyclictest33-21ksoftirqd/210:30:252
30967995422,16cyclictest33-21ksoftirqd/210:30:252
134491540,4ptp4l0-21swapper/110:33:281
134491540,4ptp4l0-21swapper/110:33:281
134491540,4ptp4l0-21swapper/107:25:031
3096899537,11cyclictest21046-21sed10:15:183
3096899535,10cyclictest28700-21ls10:30:273
3096899535,10cyclictest28700-21ls10:30:273
3096899534,11cyclictest8798-21cat07:30:183
3096899533,9cyclictest0-21swapper/310:55:003
3096899533,17cyclictest25971-21missed_timers10:25:233
3096899533,16cyclictest15353-21if_enp1s007:45:173
3096899532,9cyclictest0-21swapper/308:05:143
30967995322,9cyclictest33-21ksoftirqd/207:49:592
30967995321,4cyclictest33-21ksoftirqd/212:10:282
30967995320,4cyclictest33-21ksoftirqd/209:35:002
134491530,4ptp4l0-21swapper/110:48:351
134491530,4ptp4l0-21swapper/107:21:021
134491530,4ptp4l0-21swapper/011:09:350
134491530,4ptp4l0-21swapper/009:34:410
134491530,3ptp4l0-21swapper/107:52:351
134491530,3ptp4l0-21swapper/011:30:360
134491530,3ptp4l0-21swapper/007:54:220
134491520,5ptp4l0-21swapper/007:06:580
134491520,3ptp4l0-21swapper/010:06:200
134491520,12ptp4l9-21ksoftirqd/011:44:380
134491520,10ptp4l0-21swapper/111:02:341
86842510,5sleep30-21swapper/308:40:183
3096899516,10cyclictest14247-21tr11:10:183
3096899512,15cyclictest0-21swapper/308:50:293
134491510,4ptp4l0-21swapper/208:54:042
134491510,3ptp4l0-21swapper/012:12:290
134491510,3ptp4l0-21swapper/007:57:030
134491510,3ptp4l0-21swapper/007:35:360
134491510,3ptp4l0-21swapper/007:35:360
3096899509,8cyclictest3943-21apt-get09:40:113
3096899503,10cyclictest0-21swapper/307:55:203
30967995022,6cyclictest33-21ksoftirqd/211:30:162
134491500,5ptp4l0-21swapper/107:09:081
134491500,4ptp4l0-21swapper/110:09:031
134491500,4ptp4l0-21swapper/011:23:360
134491500,4ptp4l0-21swapper/008:38:580
134491500,4ptp4l0-21swapper/008:32:370
134491500,3ptp4l0-21swapper/208:48:352
134491500,3ptp4l0-21swapper/108:06:241
134491500,3ptp4l0-21swapper/009:38:250
3096899499,6cyclictest25190-21chrt11:32:443
3096899498,11cyclictest25959-21ssh09:15:253
3096899496,10cyclictest0-21swapper/309:30:143
30967994937,4cyclictest33-21ksoftirqd/208:22:112
134491490,9ptp4l0-21swapper/207:05:142
134491490,4ptp4l0-21swapper/110:16:421
134491490,4ptp4l0-21swapper/107:31:411
134491490,4ptp4l0-21swapper/008:43:150
134491490,3ptp4l0-21swapper/208:10:452
134491490,3ptp4l0-21swapper/008:18:330
3096899485,8cyclictest28881-21ls11:40:203
3096899483,9cyclictest0-21swapper/312:10:283
3096899481,10cyclictest0-21swapper/308:55:193
3096899477,7cyclictest8987-21/usr/sbin/munin11:00:263
30967994718,8cyclictest33-21ksoftirqd/210:40:132
134491470,4ptp4l0-21swapper/007:31:570
3096899465,7cyclictest6681-21apt-get10:55:123
3096899461,9cyclictest18549-21switchtime07:50:263
134491460,3ptp4l0-21swapper/111:40:151
134491460,3ptp4l0-21swapper/012:05:280
3096899453,10cyclictest4328-21cut10:50:013
30967994528,5cyclictest33-21ksoftirqd/208:43:392
134491450,3ptp4l0-21swapper/108:36:321
134491450,3ptp4l0-21swapper/009:16:560
134491450,3ptp4l0-21swapper/009:14:090
3096899446,6cyclictest0-21swapper/310:12:393
134491440,5ptp4l21861-21irqstats11:25:180
134491440,3ptp4l0-21swapper/109:51:111
134491440,3ptp4l0-21swapper/011:37:240
134491440,3ptp4l0-21swapper/008:53:550
134491440,12ptp4l2346-21ntpd07:15:170
3096899436,9cyclictest0-21swapper/312:05:213
30965994338,3cyclictest9-21ksoftirqd/012:20:010
134491430,9ptp4l0-21swapper/008:48:200
134491430,6ptp4l0-21swapper/010:47:590
134491430,5ptp4l22143-21ntp_states12:35:241
134491430,5ptp4l0-21swapper/009:00:170
134491430,4ptp4l24663-21iostat_ios08:05:180
134491430,3ptp4l16434-21ls07:45:271
134491430,3ptp4l0-21swapper/108:01:071
30966994235,4cyclictest25-21ksoftirqd/109:19:591
30966994210,7cyclictest25-21ksoftirqd/108:40:261
134491420,5ptp4l0-21swapper/109:10:221
134491420,5ptp4l0-21swapper/108:10:181
134491420,5ptp4l0-21swapper/010:40:120
134491420,4ptp4l14911-21users10:00:291
134491420,4ptp4l12717-21df07:40:130
134491420,4ptp4l11060-21df09:55:151
134491420,4ptp4l0-21swapper/111:33:371
134491420,3ptp4l31545-21df_inode08:20:150
134491420,3ptp4l101ktimersoftd/011:45:250
134491420,10ptp4l0-21swapper/010:12:280
134491410,8ptp4l9-21ksoftirqd/008:59:170
134491410,5ptp4l0-21swapper/108:45:191
134491410,5ptp4l0-21swapper/011:00:270
134491410,4ptp4l9742-21diskstats12:10:161
134491410,4ptp4l399-21diskstats11:50:160
134491410,4ptp4l22193-21apt-get10:20:011
134491410,4ptp4l19453-21apt-get09:05:020
134491410,4ptp4l19152-21hddtemp_smartct12:30:160
134491410,4ptp4l17854-21users11:15:300
134491410,4ptp4l15706-21irqstats07:45:180
134491410,4ptp4l0-21swapper/112:20:041
134491410,4ptp4l0-21swapper/111:45:371
134491410,4ptp4l0-21swapper/108:25:201
134491410,4ptp4l0-21swapper/011:10:230
134491410,4ptp4l0-21swapper/010:00:140
134491410,4ptp4l0-21swapper/009:25:000
134491410,3ptp4l32673-21users07:10:290
134491410,3ptp4l21787-21apt-get08:00:120
134491410,3ptp4l18906-21ls09:00:251
134491410,3ptp4l0-21swapper/110:29:341
134491410,3ptp4l0-21swapper/110:10:151
3096899405,5cyclictest134491ptp4l09:57:123
30966994034,3cyclictest25-21ksoftirqd/109:40:001
134491400,6ptp4l0-21swapper/107:19:461
134491400,5ptp4l0-21swapper/308:21:503
134491400,5ptp4l0-21swapper/109:24:241
134491400,5ptp4l0-21swapper/108:56:531
134491400,4ptp4l10136-21/usr/sbin/munin09:50:303
134491400,4ptp4l0-21swapper/309:11:233
134491400,4ptp4l0-21swapper/111:19:141
134491400,4ptp4l0-21swapper/110:58:071
134491400,4ptp4l0-21swapper/109:30:211
134491400,4ptp4l0-21swapper/109:05:081
134491400,4ptp4l0-21swapper/010:51:050
134491400,4ptp4l0-21swapper/010:39:200
134491400,4ptp4l0-21swapper/010:30:540
134491400,4ptp4l0-21swapper/010:30:540
134491400,4ptp4l0-21swapper/010:25:420
134491400,4ptp4l0-21swapper/009:48:190
134491400,4ptp4l0-21swapper/007:21:290
134491400,3ptp4l6253-21ls12:00:281
134491400,3ptp4l0-21swapper/111:20:181
134491400,2ptp4l32283-21strings08:20:211
3096899396,6cyclictest0-21swapper/309:25:273
134491390,5ptp4l0-21swapper/009:40:180
134491390,4ptp4l0-21swapper/311:58:353
134491390,4ptp4l0-21swapper/112:30:351
134491390,4ptp4l0-21swapper/112:05:211
134491390,4ptp4l0-21swapper/111:59:571
134491390,4ptp4l0-21swapper/111:12:181
134491390,4ptp4l0-21swapper/111:05:331
134491390,4ptp4l0-21swapper/110:41:151
134491390,4ptp4l0-21swapper/109:25:271
134491390,4ptp4l0-21swapper/108:53:041
134491390,4ptp4l0-21swapper/107:57:121
134491390,4ptp4l0-21swapper/107:10:261
134491390,4ptp4l0-21swapper/012:35:190
134491390,4ptp4l0-21swapper/012:25:330
134491390,4ptp4l0-21swapper/012:04:570
134491390,4ptp4l0-21swapper/010:20:020
134491390,4ptp4l0-21swapper/009:57:070
134491390,4ptp4l0-21swapper/009:51:360
134491390,4ptp4l0-21swapper/008:25:330
134491390,3ptp4l4613-21ntp_states08:30:221
134491390,3ptp4l29452-21diskstats09:25:150
134491390,3ptp4l0-21swapper/107:36:431
134491390,3ptp4l0-21swapper/107:36:421
134491380,4ptp4l0-21swapper/311:50:203
134491380,4ptp4l0-21swapper/311:20:173
134491380,4ptp4l0-21swapper/109:47:591
134491380,4ptp4l0-21swapper/109:40:221
134491380,4ptp4l0-21swapper/010:15:220
134491370,3ptp4l0-21swapper/110:37:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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