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2026-03-26 - 00:46
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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 Wed Mar 25, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2789521620,4sleep32537599cyclictest10:41:273
142221430,3sleep12537399cyclictest12:05:131
316012750,7sleep02537299cyclictest09:40:180
140642750,5sleep20-21swapper/211:20:252
200552650,3sleep220059-21needreboot09:15:202
134491640,8ptp4l13780-21ls10:10:262
134491600,4ptp4l0-21swapper/109:33:591
134491600,4ptp4l0-21swapper/109:33:591
134491580,5ptp4l5054-21latency_hist09:54:590
134491580,4ptp4l0-21swapper/110:30:181
134491580,3ptp4l0-21swapper/008:29:190
134491570,4ptp4l0-21swapper/009:45:240
134491570,3ptp4l0-21swapper/109:00:191
134491570,3ptp4l0-21swapper/109:00:191
134491570,3ptp4l0-21swapper/008:30:140
134491560,4ptp4l0-21swapper/211:09:582
134491560,4ptp4l0-21swapper/211:09:582
134491560,4ptp4l0-21swapper/112:01:261
134491560,4ptp4l0-21swapper/111:34:101
134491560,4ptp4l0-21swapper/109:37:131
134491560,4ptp4l0-21swapper/012:01:240
134491560,4ptp4l0-21swapper/008:56:220
134491560,3ptp4l0-21swapper/312:27:133
134491560,3ptp4l0-21swapper/012:30:240
134491560,3ptp4l0-21swapper/011:36:520
134491560,3ptp4l0-21swapper/011:36:520
134491550,3ptp4l0-21swapper/309:00:273
134491550,3ptp4l0-21swapper/309:00:273
134491550,3ptp4l0-21swapper/207:35:012
134491550,3ptp4l0-21swapper/111:01:451
134491550,3ptp4l0-21swapper/011:51:380
134491550,3ptp4l0-21swapper/010:35:250
134491540,4ptp4l0-21swapper/008:49:130
134491540,3ptp4l0-21swapper/007:11:570
298942530,3sleep20-21swapper/211:55:192
134491530,4ptp4l0-21swapper/312:16:193
134491530,4ptp4l0-21swapper/011:12:540
134491530,4ptp4l0-21swapper/009:35:180
134491530,4ptp4l0-21swapper/009:24:280
134491530,3ptp4l0-21swapper/110:06:341
134491530,3ptp4l0-21swapper/007:55:170
134491520,4ptp4l0-21swapper/308:00:183
134491520,4ptp4l0-21swapper/011:25:460
134491520,4ptp4l0-21swapper/009:13:190
134491520,3ptp4l0-21swapper/008:52:440
134491510,4ptp4l0-21swapper/211:28:452
134491510,4ptp4l0-21swapper/208:55:062
134491510,4ptp4l0-21swapper/010:19:540
134491500,7ptp4l23247-21df07:05:131
134491500,4ptp4l0-21swapper/110:41:141
134491500,4ptp4l0-21swapper/009:31:150
134491500,4ptp4l0-21swapper/009:31:150
134491500,4ptp4l0-21swapper/009:16:360
134491490,4ptp4l0-21swapper/310:12:053
134491490,3ptp4l0-21swapper/111:41:111
134491490,3ptp4l0-21swapper/010:31:080
46198480,4rtkit-daemon0-21swapper/208:27:132
134491480,8ptp4l3578-21apt-get12:10:122
134491480,4ptp4l0-21swapper/010:13:170
134491480,3ptp4l0-21swapper/011:15:140
134491480,3ptp4l0-21swapper/008:19:560
134491480,3ptp4l0-21swapper/007:43:380
134491470,4ptp4l0-21swapper/311:01:553
134491470,4ptp4l0-21swapper/112:31:461
134491470,4ptp4l0-21swapper/112:24:591
134491470,4ptp4l0-21swapper/111:54:021
134491470,12ptp4l0-21swapper/210:20:232
134491460,4ptp4l0-21swapper/110:28:231
134491460,4ptp4l0-21swapper/010:09:360
134491460,4ptp4l0-21swapper/008:38:290
134491460,3ptp4l0-21swapper/110:10:431
134491460,3ptp4l0-21swapper/109:54:571
25374994532,11cyclictest33-21ksoftirqd/209:10:012
25374994513,4cyclictest33-21ksoftirqd/209:10:192
25374994512,4cyclictest33-21ksoftirqd/209:30:292
25374994512,4cyclictest33-21ksoftirqd/209:30:292
134491450,9ptp4l0-21swapper/210:32:002
134491450,9ptp4l0-21swapper/009:58:160
134491450,4ptp4l0-21swapper/210:27:242
134491450,4ptp4l0-21swapper/107:25:411
134491450,4ptp4l0-21swapper/008:14:360
134491450,4ptp4l0-21swapper/007:22:380
134491450,3ptp4l0-21swapper/112:11:301
134491450,3ptp4l0-21swapper/107:19:261
134491450,3ptp4l0-21swapper/008:21:260
134491440,9ptp4l0-21swapper/211:10:032
134491440,9ptp4l0-21swapper/209:22:462
134491440,9ptp4l0-21swapper/208:23:042
134491440,9ptp4l0-21swapper/008:02:510
134491440,4ptp4l22106-21apt-get11:40:122
134491440,4ptp4l0-21swapper/311:07:293
134491440,4ptp4l0-21swapper/311:07:293
134491440,4ptp4l0-21swapper/307:09:063
134491440,4ptp4l0-21swapper/111:25:441
134491440,4ptp4l0-21swapper/012:21:470
134491440,4ptp4l0-21swapper/010:50:250
134491440,3ptp4l0-21swapper/108:59:461
134491440,3ptp4l0-21swapper/108:16:261
134491440,3ptp4l0-21swapper/107:42:031
134491440,10ptp4l0-21swapper/210:16:102
2537499431,2cyclictest121rcu_preempt10:45:002
25374994311,4cyclictest33-21ksoftirqd/211:15:272
2537499430,5cyclictest33-21ksoftirqd/209:40:212
134491430,9ptp4l0-21swapper/210:08:352
134491430,9ptp4l0-21swapper/208:41:302
134491430,9ptp4l0-21swapper/207:56:162
134491430,8ptp4l0-21swapper/212:27:382
134491430,8ptp4l0-21swapper/207:11:552
134491430,5ptp4l2318-21gnome-shell08:49:591
134491430,5ptp4l14630-21hddtemp_smartct07:55:161
134491430,4ptp4l11905-21apt-get07:50:131
134491430,4ptp4l0-21swapper/312:35:093
134491430,3ptp4l0-21swapper/109:27:461
134491430,3ptp4l0-21swapper/109:23:301
134491430,3ptp4l0-21swapper/107:48:321
134491430,3ptp4l0-21swapper/011:45:080
134491430,3ptp4l0-21swapper/011:06:040
134491430,3ptp4l0-21swapper/011:06:040
134491430,3ptp4l0-21swapper/009:02:490
134491430,3ptp4l0-21swapper/009:02:490
134491430,3ptp4l0-21swapper/008:42:590
25374994237,3cyclictest33-21ksoftirqd/210:40:002
25374994236,3cyclictest33-21ksoftirqd/209:35:122
2537499421,2cyclictest121rcu_preempt09:05:002
2537499421,2cyclictest121rcu_preempt09:04:592
25374994212,4cyclictest33-21ksoftirqd/209:45:242
134491420,9ptp4l0-21swapper/212:37:212
134491420,9ptp4l0-21swapper/212:06:202
134491420,9ptp4l0-21swapper/211:35:132
134491420,9ptp4l0-21swapper/211:35:132
134491420,9ptp4l0-21swapper/208:32:262
134491420,8ptp4l0-21swapper/210:01:482
134491420,8ptp4l0-21swapper/209:59:362
134491420,5ptp4l29006-21apt-get11:55:121
134491420,5ptp4l19079-21df08:05:152
134491420,5ptp4l0-21swapper/207:08:382
134491420,4ptp4l29750-21apt-get07:20:021
134491420,4ptp4l19522-21df_inode10:25:140
134491420,4ptp4l1647-21hddtemp_smartct12:05:150
134491420,4ptp4l14510-21apt-get10:15:131
134491420,4ptp4l0-21swapper/112:17:371
134491420,4ptp4l0-21swapper/012:28:420
134491420,4ptp4l0-21swapper/012:19:090
134491420,4ptp4l0-21swapper/007:17:150
134491420,3ptp4l8954-21ls11:10:203
134491420,3ptp4l14366-21apt-get09:05:131
134491420,3ptp4l0-21swapper/108:27:281
134491420,3ptp4l0-21swapper/007:49:480
25374994137,3cyclictest33-21ksoftirqd/207:30:012
25374994136,3cyclictest33-21ksoftirqd/209:54:592
25374994136,3cyclictest33-21ksoftirqd/207:25:002
2537499412,6cyclictest121rcu_preempt08:54:592
25374994111,3cyclictest33-21ksoftirqd/210:50:002
134491410,9ptp4l0-21swapper/212:03:032
134491410,8ptp4l0-21swapper/207:44:102
134491410,5ptp4l0-21swapper/111:10:181
134491410,5ptp4l0-21swapper/110:55:141
134491410,5ptp4l0-21swapper/009:05:130
134491410,4ptp4l934-21diskstats09:45:151
134491410,4ptp4l3127-21hddtemp_smartct07:30:160
134491410,4ptp4l22318-21df11:40:130
134491410,4ptp4l19984-21ntp_states08:05:240
134491410,4ptp4l0-21swapper/312:05:213
134491410,4ptp4l0-21swapper/211:00:202
134491410,4ptp4l0-21swapper/111:05:201
134491410,4ptp4l0-21swapper/111:05:201
134491410,4ptp4l0-21swapper/109:10:121
134491410,4ptp4l0-21swapper/108:50:201
134491410,4ptp4l0-21swapper/010:22:000
134491410,4ptp4l0-21swapper/009:27:160
134491410,3ptp4l9456-21kworker/3:110:24:253
134491410,3ptp4l4003-21hddtemp_smartct12:10:160
134491410,3ptp4l32671-21apt-get08:35:121
134491410,3ptp4l28950-21diskstats10:45:130
134491410,3ptp4l25254-21irqstats11:45:181
134491410,3ptp4l2187-21apt-get07:30:032
134491410,1ptp4l0-21swapper/007:26:010
25374994035,3cyclictest33-21ksoftirqd/212:35:002
25374994035,3cyclictest33-21ksoftirqd/211:45:192
25374994034,3cyclictest33-21ksoftirqd/212:20:342
134491400,6ptp4l0-21swapper/311:23:113
134491400,5ptp4l0-21swapper/310:00:143
134491400,5ptp4l0-21swapper/110:45:161
134491400,5ptp4l0-21swapper/110:35:271
134491400,5ptp4l0-21swapper/007:05:160
134491400,4ptp4l6247-21meminfo09:55:181
134491400,4ptp4l30585-21df08:30:141
134491400,4ptp4l27087-21memory10:40:190
134491400,4ptp4l20344-21sshd09:15:251
134491400,4ptp4l1389-21iostat10:55:160
134491400,4ptp4l0-21swapper/311:25:253
134491400,4ptp4l0-21swapper/210:54:112
134491400,4ptp4l0-21swapper/208:15:172
134491400,4ptp4l0-21swapper/111:35:271
134491400,4ptp4l0-21swapper/111:35:271
134491400,4ptp4l0-21swapper/108:20:241
134491400,4ptp4l0-21swapper/108:11:261
134491400,4ptp4l0-21swapper/108:05:201
134491400,4ptp4l0-21swapper/011:21:120
134491400,4ptp4l0-21swapper/011:04:510
134491400,3ptp4l30938-21apt-get10:50:121
134491400,3ptp4l17280-21apt-get11:30:100
134491400,3ptp4l15138-21ls07:55:193
134491400,3ptp4l12206-21/usr/sbin/munin07:50:150
134491400,3ptp4l10491-21apt-get12:25:121
25374993934,3cyclictest33-21ksoftirqd/209:25:582
134491390,5ptp4l0-21swapper/108:00:251
134491390,4ptp4l0-21swapper/311:54:403
134491390,4ptp4l0-21swapper/311:35:103
134491390,4ptp4l0-21swapper/311:35:103
134491390,4ptp4l0-21swapper/310:54:253
134491390,4ptp4l0-21swapper/310:19:573
134491390,4ptp4l0-21swapper/309:38:273
134491390,4ptp4l0-21swapper/309:20:173
134491390,4ptp4l0-21swapper/309:16:393
134491390,4ptp4l0-21swapper/309:10:293
134491390,4ptp4l0-21swapper/308:50:223
134491390,4ptp4l0-21swapper/308:45:353
134491390,4ptp4l0-21swapper/308:15:293
134491390,4ptp4l0-21swapper/307:11:563
134491390,4ptp4l0-21swapper/212:16:172
134491390,4ptp4l0-21swapper/211:52:322
134491390,4ptp4l0-21swapper/211:30:042
134491390,4ptp4l0-21swapper/210:55:082
134491390,4ptp4l0-21swapper/208:45:062
134491390,4ptp4l0-21swapper/208:35:442
134491390,4ptp4l0-21swapper/208:10:442
134491390,4ptp4l0-21swapper/207:50:442
134491390,4ptp4l0-21swapper/207:46:322
134491390,4ptp4l0-21swapper/207:18:342
134491390,4ptp4l0-21swapper/111:15:111
134491390,4ptp4l0-21swapper/110:20:201
134491390,4ptp4l0-21swapper/110:00:241
134491390,4ptp4l0-21swapper/107:12:441
134491390,4ptp4l0-21swapper/012:35:100
134491390,4ptp4l0-21swapper/010:00:240
134491390,4ptp4l0-21swapper/007:40:010
134491390,3ptp4l30753-21apt-get09:40:121
134491390,3ptp4l0-21swapper/011:55:480
46198380,4rtkit-daemon0-21swapper/307:17:093
134491380,4ptp4l5554-21/usr/sbin/munin07:35:171
134491380,4ptp4l29580-21ps11:55:183
134491380,4ptp4l0-21swapper/312:33:393
134491380,4ptp4l0-21swapper/312:11:093
134491380,4ptp4l0-21swapper/312:01:213
134491380,4ptp4l0-21swapper/311:30:483
134491380,4ptp4l0-21swapper/310:48:113
134491380,4ptp4l0-21swapper/310:36:093
134491380,4ptp4l0-21swapper/310:30:113
134491380,4ptp4l0-21swapper/310:27:283
134491380,4ptp4l0-21swapper/309:58:233
134491380,4ptp4l0-21swapper/309:46:563
134491380,4ptp4l0-21swapper/309:44:353
134491380,4ptp4l0-21swapper/309:30:213
134491380,4ptp4l0-21swapper/309:30:213
134491380,4ptp4l0-21swapper/112:35:171
134491380,4ptp4l0-21swapper/111:20:091
134491380,4ptp4l0-21swapper/108:40:181
134491380,3ptp4l0-21swapper/308:10:203
134491380,3ptp4l0-21swapper/307:47:083
134491380,3ptp4l0-21swapper/208:00:172
134491370,4ptp4l0-21swapper/310:55:113
134491370,4ptp4l0-21swapper/310:05:283
134491370,4ptp4l0-21swapper/309:50:413
134491370,4ptp4l0-21swapper/308:55:153
134491370,4ptp4l0-21swapper/308:44:293
134491370,4ptp4l0-21swapper/308:30:413
134491370,4ptp4l0-21swapper/307:50:463
134491370,4ptp4l0-21swapper/307:30:343
134491370,4ptp4l0-21swapper/107:30:251
134491370,3ptp4l0-21swapper/311:42:523
134491370,3ptp4l0-21swapper/307:41:513
134491370,3ptp4l0-21swapper/307:39:513
134491360,4ptp4l0-21swapper/312:21:343
134491360,4ptp4l0-21swapper/311:46:423
134491360,4ptp4l0-21swapper/311:15:283
134491360,4ptp4l0-21swapper/308:26:083
134491360,3ptp4l0-21swapper/309:26:313
134491360,3ptp4l0-21swapper/309:05:563
134491360,3ptp4l0-21swapper/308:24:023
134491360,3ptp4l0-21swapper/307:21:313
46198350,4rtkit-daemon0-21swapper/308:38:033
134491350,4ptp4l0-21swapper/308:05:183
134491320,3ptp4l0-21swapper/307:29:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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