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2025-12-05 - 18:05
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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 Fri Dec 05, 2025 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2614721710,9sleep343899cyclictest11:20:173
2847191700,3ptp4l0-21swapper/208:00:162
2847191650,5ptp4l23656-21df_abs11:15:151
2847191640,21ptp4l28984-21irqstats12:35:161
146502630,4sleep00-21swapper/010:55:190
2847191590,4ptp4l0-21swapper/111:37:271
2847191590,4ptp4l0-21swapper/107:21:411
2847191580,4ptp4l0-21swapper/009:13:560
2847191580,3ptp4l0-21swapper/110:47:381
2847191570,4ptp4l0-21swapper/011:55:260
2847191570,3ptp4l24734-21apt-get08:45:031
2847191570,3ptp4l24734-21apt-get08:45:031
2847191570,3ptp4l0-21swapper/211:10:062
2847191570,3ptp4l0-21swapper/009:03:420
2847191560,9ptp4l0-21swapper/211:25:022
2847191560,9ptp4l0-21swapper/208:46:352
2847191560,9ptp4l0-21swapper/208:46:352
2847191560,4ptp4l0-21swapper/107:10:231
2847191560,4ptp4l0-21swapper/107:10:221
2847191560,3ptp4l0-21swapper/012:33:110
48872550,5sleep343899cyclictest11:45:003
2847191550,4ptp4l0-21swapper/211:54:592
2847191550,4ptp4l0-21swapper/007:54:140
2847191550,3ptp4l0-21swapper/010:50:220
2847191540,4ptp4l0-21swapper/207:51:292
2847191540,4ptp4l0-21swapper/207:45:272
2847191540,4ptp4l0-21swapper/108:58:381
2847191540,4ptp4l0-21swapper/012:21:490
2847191540,4ptp4l0-21swapper/011:51:110
2847191540,4ptp4l0-21swapper/011:23:040
2847191540,4ptp4l0-21swapper/010:08:520
2847191540,4ptp4l0-21swapper/009:28:470
43899533,14cyclictest1793-21llvmpipe-009:07:583
2847191530,4ptp4l0-21swapper/211:02:292
2847191530,4ptp4l0-21swapper/208:12:202
2847191530,4ptp4l0-21swapper/110:38:271
2847191530,4ptp4l0-21swapper/012:39:430
2847191530,4ptp4l0-21swapper/012:05:130
2847191530,4ptp4l0-21swapper/010:44:510
2847191530,3ptp4l0-21swapper/007:46:200
2847191520,4ptp4l0-21swapper/212:28:152
2847191520,4ptp4l0-21swapper/209:41:342
2847191520,4ptp4l0-21swapper/209:11:262
2847191520,4ptp4l0-21swapper/207:57:162
2847191520,4ptp4l0-21swapper/109:22:191
2847191520,3ptp4l0-21swapper/110:00:401
2847191520,3ptp4l0-21swapper/012:29:310
2847191520,3ptp4l0-21swapper/011:14:320
2847191510,4ptp4l0-21swapper/210:34:382
2847191510,4ptp4l0-21swapper/210:13:242
2847191510,4ptp4l0-21swapper/112:20:281
2847191510,4ptp4l0-21swapper/112:11:381
2847191510,4ptp4l0-21swapper/109:32:301
2847191510,4ptp4l0-21swapper/010:01:580
2847191510,4ptp4l0-21swapper/009:56:510
2847191510,4ptp4l0-21swapper/009:46:380
2847191510,4ptp4l0-21swapper/009:24:220
2847191510,3ptp4l0-21swapper/008:15:000
2847191510,14ptp4l0-21swapper/008:03:130
2847191500,8ptp4l0-21swapper/312:19:073
2847191500,4ptp4l0-21swapper/111:06:151
2847191500,4ptp4l0-21swapper/109:37:301
2847191500,4ptp4l0-21swapper/109:27:021
2847191500,4ptp4l0-21swapper/012:18:070
2847191500,3ptp4l0-21swapper/012:14:150
43899491,11cyclictest29689-21cat12:35:243
2847191490,5ptp4l0-21swapper/107:05:341
2847191490,3ptp4l0-21swapper/107:44:081
2847191480,3ptp4l0-21swapper/211:08:312
2847191480,3ptp4l0-21swapper/110:29:291
2847191480,3ptp4l0-21swapper/010:31:540
2847191470,4ptp4l0-21swapper/009:54:200
2847191470,3ptp4l0-21swapper/109:01:121
43899464,12cyclictest0-21swapper/310:20:143
2847191460,4ptp4l0-21swapper/209:54:122
2847191460,4ptp4l0-21swapper/010:28:120
2847191460,4ptp4l0-21swapper/007:28:320
2847191460,3ptp4l0-21swapper/112:33:211
43899458,7cyclictest0-21swapper/309:45:163
43899452,11cyclictest0-21swapper/307:25:233
2847191450,9ptp4l0-21swapper/008:16:040
2847191450,9ptp4l0-21swapper/008:16:040
2847191450,3ptp4l0-21swapper/212:15:272
2847191450,3ptp4l0-21swapper/110:30:281
2847191450,3ptp4l0-21swapper/109:45:221
2847191450,3ptp4l0-21swapper/107:36:111
43899448,6cyclictest0-21swapper/311:30:273
2847191440,9ptp4l0-21swapper/210:55:082
2847191440,9ptp4l0-21swapper/208:39:262
2847191440,9ptp4l0-21swapper/012:00:590
2847191440,9ptp4l0-21swapper/012:00:590
2847191440,3ptp4l0-21swapper/011:38:400
2847191440,10ptp4l0-21swapper/212:10:582
2847191440,10ptp4l0-21swapper/111:34:461
43899432,7cyclictest26341-21ls10:10:213
2847191430,9ptp4l0-21swapper/212:09:542
2847191430,9ptp4l0-21swapper/210:08:062
2847191430,9ptp4l0-21swapper/208:08:222
2847191430,5ptp4l0-21swapper/209:20:132
2847191430,4ptp4l26004-21apt-get08:55:092
2847191430,4ptp4l0-21swapper/210:04:222
2847191430,4ptp4l0-21swapper/107:18:101
2847191430,4ptp4l0-21swapper/011:44:490
2847191430,10ptp4l0-21swapper/210:52:272
43899428,6cyclictest0-21swapper/311:55:153
43899424,17cyclictest22331-21systemctl11:10:233
2849491420,9getstats0-21swapper/311:28:023
2849491420,10getstats0-21swapper/310:35:173
2849491420,10getstats0-21swapper/309:36:443
2847191420,9ptp4l0-21swapper/207:24:122
2847191420,8ptp4l0-21swapper/208:32:372
2847191420,8ptp4l0-21swapper/010:12:300
2847191420,8ptp4l0-21swapper/008:25:220
2847191420,4ptp4l0-21swapper/208:53:282
2847191420,4ptp4l0-21swapper/109:10:231
2847191420,4ptp4l0-21swapper/008:35:440
43899418,6cyclictest0-21swapper/312:30:263
43899418,6cyclictest0-21swapper/309:30:183
43899417,6cyclictest0-21swapper/310:15:253
43899416,6cyclictest0-21swapper/311:15:253
2847191410,9ptp4l0-21swapper/209:30:272
2847191410,5ptp4l0-21swapper/309:40:143
2847191410,5ptp4l0-21swapper/008:40:160
2847191410,4ptp4l30457-21/usr/sbin/munin10:20:161
2847191410,4ptp4l28429-21hddtemp_smartct11:25:160
2847191410,4ptp4l14684-21hddtemp_smartct12:05:181
2847191410,4ptp4l12348-21irqstats07:55:170
2847191410,4ptp4l0-21swapper/310:03:053
2847191410,4ptp4l0-21swapper/211:58:542
2847191410,4ptp4l0-21swapper/211:15:282
2847191410,4ptp4l0-21swapper/208:40:162
2847191410,4ptp4l0-21swapper/112:01:021
2847191410,4ptp4l0-21swapper/112:01:011
2847191410,4ptp4l0-21swapper/111:40:131
2847191410,4ptp4l0-21swapper/010:45:210
2847191410,4ptp4l0-21swapper/008:50:540
2847191410,4ptp4l0-21swapper/007:23:240
2847191410,3ptp4l9318-21hddtemp_smartct09:35:140
2847191410,3ptp4l6228-21apt-get07:30:011
2847191410,3ptp4l15073-21apt-get08:10:121
2847191410,3ptp4l11705-21df07:55:131
2847191410,3ptp4l10561-21memory11:55:211
2847191410,3ptp4l0-21swapper/211:42:162
2847191410,3ptp4l0-21swapper/209:55:372
2847191410,3ptp4l0-21swapper/010:15:580
43899407,6cyclictest0-21swapper/309:50:173
43899406,6cyclictest0-21swapper/311:02:433
2847191400,4ptp4l43899cyclictest12:07:593
2847191400,4ptp4l28000-21fschecks_count10:15:151
2847191400,4ptp4l25312-21/usr/sbin/munin10:10:121
2847191400,4ptp4l21608-21iostat11:10:151
2847191400,4ptp4l0-21swapper/311:06:423
2847191400,4ptp4l0-21swapper/308:49:583
2847191400,4ptp4l0-21swapper/308:49:583
2847191400,4ptp4l0-21swapper/308:35:003
2847191400,4ptp4l0-21swapper/307:18:043
2847191400,4ptp4l0-21swapper/307:12:593
2847191400,4ptp4l0-21swapper/307:12:583
2847191400,4ptp4l0-21swapper/212:32:292
2847191400,4ptp4l0-21swapper/212:00:582
2847191400,4ptp4l0-21swapper/212:00:582
2847191400,4ptp4l0-21swapper/211:31:542
2847191400,4ptp4l0-21swapper/210:36:542
2847191400,4ptp4l0-21swapper/210:21:372
2847191400,4ptp4l0-21swapper/209:48:022
2847191400,4ptp4l0-21swapper/209:18:382
2847191400,4ptp4l0-21swapper/209:00:022
2847191400,4ptp4l0-21swapper/208:20:192
2847191400,4ptp4l0-21swapper/207:36:152
2847191400,4ptp4l0-21swapper/207:32:032
2847191400,4ptp4l0-21swapper/207:16:412
2847191400,4ptp4l0-21swapper/207:14:302
2847191400,4ptp4l0-21swapper/207:14:302
2847191400,4ptp4l0-21swapper/112:25:221
2847191400,4ptp4l0-21swapper/112:17:561
2847191400,4ptp4l0-21swapper/111:50:121
2847191400,4ptp4l0-21swapper/110:06:191
2847191400,4ptp4l0-21swapper/109:55:131
2847191400,4ptp4l0-21swapper/011:45:170
2847191400,4ptp4l0-21swapper/011:15:200
2847191400,4ptp4l0-21swapper/011:06:090
2847191400,4ptp4l0-21swapper/010:22:020
2847191400,4ptp4l0-21swapper/009:40:020
2847191400,4ptp4l0-21swapper/009:19:200
2847191400,4ptp4l0-21swapper/008:55:120
2847191400,4ptp4l0-21swapper/008:30:340
2847191400,4ptp4l0-21swapper/008:09:520
2847191400,4ptp4l0-21swapper/007:40:310
2847191400,4ptp4l0-21swapper/007:16:420
2847191400,3ptp4l6895-21diskstats09:30:160
2847191400,3ptp4l4932-21df_inode10:35:150
2847191400,3ptp4l4721-21iostat07:25:171
2847191400,3ptp4l25894-21df11:20:141
2847191400,3ptp4l19614-21meminfo08:25:191
2847191400,3ptp4l16996-21iostat_ios11:00:190
2847191400,3ptp4l0-21swapper/110:55:151
2847191400,3ptp4l0-21swapper/009:09:130
2847191400,2ptp4l1778-21gnome-shell09:17:581
2847191400,2ptp4l12508-21ls10:50:201
43899393,11cyclictest0-21swapper/308:03:423
2847191390,5ptp4l0-21swapper/311:50:293
2847191390,5ptp4l0-21swapper/310:41:473
2847191390,5ptp4l0-21swapper/307:20:183
2847191390,4ptp4l0-21swapper/311:48:483
2847191390,4ptp4l0-21swapper/310:56:263
2847191390,4ptp4l0-21swapper/310:31:153
2847191390,4ptp4l0-21swapper/310:08:563
2847191390,4ptp4l0-21swapper/309:55:243
2847191390,4ptp4l0-21swapper/308:15:243
2847191390,4ptp4l0-21swapper/308:15:243
2847191390,4ptp4l0-21swapper/307:57:193
2847191390,4ptp4l0-21swapper/307:30:143
2847191390,4ptp4l0-21swapper/212:35:572
2847191390,4ptp4l0-21swapper/211:46:072
2847191390,4ptp4l0-21swapper/211:36:262
2847191390,4ptp4l0-21swapper/211:21:112
2847191390,4ptp4l0-21swapper/210:49:182
2847191390,4ptp4l0-21swapper/210:42:262
2847191390,4ptp4l0-21swapper/210:25:162
2847191390,4ptp4l0-21swapper/210:15:262
2847191390,4ptp4l0-21swapper/209:39:482
2847191390,4ptp4l0-21swapper/209:05:282
2847191390,4ptp4l0-21swapper/208:19:032
2847191390,4ptp4l0-21swapper/208:19:032
2847191390,4ptp4l0-21swapper/207:40:102
2847191390,4ptp4l0-21swapper/207:27:022
2847191390,4ptp4l0-21swapper/111:45:161
2847191390,4ptp4l0-21swapper/111:28:041
2847191390,4ptp4l0-21swapper/109:40:161
2847191390,4ptp4l0-21swapper/109:07:081
2847191390,4ptp4l0-21swapper/108:52:361
2847191390,4ptp4l0-21swapper/108:36:021
2847191390,4ptp4l0-21swapper/108:21:081
2847191390,4ptp4l0-21swapper/108:08:091
2847191390,4ptp4l0-21swapper/008:21:060
2847191390,4ptp4l0-21swapper/007:38:080
2847191390,4ptp4l0-21swapper/007:12:460
2847191390,4ptp4l0-21swapper/007:12:460
2847191390,4ptp4l0-21swapper/007:05:200
2847191390,3ptp4l0-21swapper/312:12:193
2847191390,3ptp4l0-21swapper/208:27:212
2847191390,3ptp4l0-21swapper/110:41:111
2847191390,3ptp4l0-21swapper/109:50:581
2847191390,3ptp4l0-21swapper/011:30:160
2847191390,3ptp4l0-21swapper/008:49:360
2847191390,3ptp4l0-21swapper/008:49:350
2847191380,5ptp4l0-21swapper/308:36:083
2847191380,4ptp4l0-21swapper/312:28:103
2847191380,4ptp4l0-21swapper/309:27:593
2847191380,4ptp4l0-21swapper/309:23:323
2847191380,4ptp4l0-21swapper/309:14:183
2847191380,4ptp4l0-21swapper/308:56:263
2847191380,4ptp4l0-21swapper/308:41:143
2847191380,4ptp4l0-21swapper/308:12:573
2847191380,4ptp4l0-21swapper/307:47:403
2847191380,4ptp4l0-21swapper/209:28:392
2847191380,4ptp4l0-21swapper/111:00:241
2847191380,4ptp4l0-21swapper/107:45:521
2847191380,4ptp4l0-21swapper/007:30:010
2847191380,3ptp4l0-21swapper/310:45:403
2847191380,3ptp4l0-21swapper/310:25:593
2847191380,3ptp4l0-21swapper/307:54:423
2847191380,3ptp4l0-21swapper/307:37:223
2847191380,3ptp4l0-21swapper/212:22:272
2847191380,3ptp4l0-21swapper/108:18:141
2847191380,3ptp4l0-21swapper/108:18:141
2847191380,3ptp4l0-21swapper/108:00:571
2847191380,3ptp4l0-21swapper/107:50:181
2847191380,2ptp4l23264-21ls08:40:221
2847191380,2ptp4l0-21swapper/308:23:093
43899377,5cyclictest0-21swapper/310:51:593
2847191370,4ptp4l0-21swapper/312:22:243
2847191370,4ptp4l0-21swapper/311:37:523
2847191370,4ptp4l0-21swapper/308:09:033
2847191370,3ptp4l0-21swapper/312:01:193
2847191370,3ptp4l0-21swapper/312:01:183
2847191370,3ptp4l0-21swapper/108:31:541
2847191360,4ptp4l0-21swapper/307:40:083
2847191360,3ptp4l0-21swapper/308:25:043
2847191350,3ptp4l0-21swapper/309:00:023
2847191350,2ptp4l0-21swapper/309:15:163
43899332,5cyclictest0-21swapper/308:50:203
324472144,6sleep30-21swapper/307:08:213
322862124,4sleep20-21swapper/207:06:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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