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2025-12-13 - 17:11
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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 Dec 13, 2025 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187842700,4sleep10-21swapper/110:10:321
3118799671,30cyclictest3002-21seq09:36:050
3118799660,30cyclictest18142-21seq12:27:430
3118799660,26cyclictest590-21seq07:12:030
3118799660,26cyclictest590-21seq07:12:030
3118799651,61cyclictest29423-21iostat_ios08:15:220
3118799651,31cyclictest14675-21seq08:52:200
3118799650,30cyclictest24046-21seq10:22:260
3118799640,31cyclictest17886-21seq11:19:140
3118799640,30cyclictest16730-21taskset07:46:040
134491640,3ptp4l18442-21irqstats10:10:272
3118799631,29cyclictest28701-21taskset09:24:210
3118799630,36cyclictest24003-21seq09:13:590
3118799630,32cyclictest12567-21seq09:58:020
3118799630,31cyclictest10025-21taskset08:41:320
3118799630,30cyclictest5339-21seq09:41:230
3118799630,30cyclictest10505-21seq11:01:170
3118799630,29cyclictest28646-21seq10:31:530
134491630,4ptp4l19910-21/usr/sbin/munin07:55:171
3118799621,31cyclictest13686-21seq12:19:430
3118799620,59cyclictest14372-21users07:40:310
3118799620,29cyclictest6558-21seq12:04:240
3118799620,29cyclictest1782-21taskset11:53:030
3118799620,28cyclictest3134-21taskset07:18:570
134491620,15ptp4l0-21swapper/309:05:183
134491620,15ptp4l0-21swapper/309:05:183
3118799611,30cyclictest7652-21seq09:46:350
3118799611,30cyclictest30921-21seq09:28:190
3118799610,30cyclictest3574-21seq10:48:420
3118799610,30cyclictest16011-21seq12:24:490
3118799610,29cyclictest814-21seq10:41:360
3118799610,29cyclictest16845-21taskset08:55:480
3118799610,28cyclictest22255-21taskset11:26:080
3118799610,28cyclictest21558-21seq07:59:090
3118799610,22cyclictest30635-21cat10:35:330
79992600,4sleep37998-21dump-pmu-power08:39:593
3118799601,29cyclictest28306-21taskset08:11:190
3118799600,30cyclictest20842-21seq12:35:050
3118799600,29cyclictest5533-21seq08:33:070
3118799600,28cyclictest8883-21runrttasks12:09:490
134491600,4ptp4l8302-21apt-get11:00:023
134491600,4ptp4l0-21swapper/308:58:503
134491600,4ptp4l0-21swapper/110:25:281
134491600,4ptp4l0-21swapper/012:30:340
134491600,4ptp4l0-21swapper/010:50:280
134491600,28ptp4l25-21ksoftirqd/110:17:301
3118799591,30cyclictest19950-21taskset11:21:030
3118799591,29cyclictest13089-21seq11:09:560
3118799590,55cyclictest20455-21iostat10:15:230
3118799590,36cyclictest26127-21seq09:16:030
3118799590,31cyclictest12985-21seq10:00:150
3118799590,31cyclictest12985-21seq10:00:150
3118799590,30cyclictest9996-21seq07:33:170
3118799590,30cyclictest7583-21seq07:26:480
3118799590,29cyclictest5525-21seq07:24:510
3118799590,29cyclictest10210-21seq09:52:130
3118799590,28cyclictest26245-21taskset10:25:350
3118799590,28cyclictest10971-21taskset12:12:040
217852590,6sleep20-21swapper/211:25:302
3118799581,35cyclictest31582-21seq11:46:500
3118799580,30cyclictest19125-21taskset07:52:220
3118799580,30cyclictest19125-21taskset07:52:220
3118799580,28cyclictest7751-21taskset08:37:060
134491580,4ptp4l0-21swapper/209:17:582
134491580,4ptp4l0-21swapper/207:31:572
3118799570,29cyclictest29351-21seq11:42:490
3118799570,29cyclictest19555-21taskset10:14:030
3118799570,28cyclictest8229-21taskset10:59:320
3118799570,28cyclictest540-21taskset08:22:020
3118799570,28cyclictest17201-21seq10:08:180
134491570,5ptp4l0-21swapper/310:52:313
134491570,4ptp4l0-21swapper/211:49:542
134491570,4ptp4l0-21swapper/209:27:032
134491570,4ptp4l0-21swapper/007:08:510
134491570,3ptp4l0-21swapper/210:40:472
134491570,3ptp4l0-21swapper/112:15:321
3118799560,28cyclictest21571-21seq09:07:120
3118799560,28cyclictest21571-21seq09:07:120
134491560,8ptp4l0-21swapper/212:01:462
134491560,4ptp4l0-21swapper/212:23:102
134491560,3ptp4l0-21swapper/110:34:461
3118799553,21cyclictest0-21swapper/011:33:170
134491550,4ptp4l0-21swapper/307:20:323
134491550,4ptp4l0-21swapper/207:50:562
134491550,4ptp4l0-21swapper/207:50:562
134491550,3ptp4l0-21swapper/311:10:313
134491550,3ptp4l0-21swapper/309:35:223
134491540,4ptp4l0-21swapper/308:30:283
134491540,4ptp4l0-21swapper/307:37:553
134491540,4ptp4l0-21swapper/208:41:562
134491540,4ptp4l0-21swapper/207:29:272
134491540,4ptp4l0-21swapper/207:12:432
134491540,4ptp4l0-21swapper/207:12:432
134491540,4ptp4l0-21swapper/112:31:081
134491540,4ptp4l0-21swapper/110:21:181
134491540,4ptp4l0-21swapper/109:37:591
134491540,3ptp4l0-21swapper/110:38:281
3118799530,50cyclictest25171-21apt-get11:35:170
134491530,4ptp4l0-21swapper/310:31:593
134491530,4ptp4l0-21swapper/309:13:003
134491530,4ptp4l0-21swapper/309:02:433
134491530,4ptp4l0-21swapper/308:44:223
134491530,4ptp4l0-21swapper/211:21:042
134491530,4ptp4l0-21swapper/208:04:242
134491530,4ptp4l0-21swapper/112:09:541
134491530,3ptp4l0-21swapper/211:17:122
134491520,4ptp4l0-21swapper/309:42:053
134491520,4ptp4l0-21swapper/111:02:401
134491520,4ptp4l0-21swapper/107:48:261
134491520,3ptp4l0-21swapper/210:03:312
134491520,3ptp4l0-21swapper/210:03:312
3118799512,32cyclictest0-21swapper/011:11:300
134491510,4ptp4l0-21swapper/308:49:473
134491510,4ptp4l0-21swapper/307:33:553
134491510,3ptp4l0-21swapper/209:45:022
3118799502,21cyclictest0-21swapper/007:36:180
134491500,4ptp4l0-21swapper/210:40:002
134491500,4ptp4l0-21swapper/210:28:592
134491500,4ptp4l0-21swapper/111:51:091
134491500,4ptp4l0-21swapper/111:48:381
134491500,4ptp4l0-21swapper/111:22:301
134491500,4ptp4l0-21swapper/111:06:371
134491500,4ptp4l0-21swapper/108:03:041
134491500,4ptp4l0-21swapper/107:30:011
134491500,4ptp4l0-21swapper/107:19:071
134491500,4ptp4l0-21swapper/107:14:011
134491500,4ptp4l0-21swapper/107:14:011
134491500,2ptp4l0-21swapper/111:15:541
134491490,4ptp4l0-21swapper/208:27:522
134491490,3ptp4l0-21swapper/307:15:173
134491490,3ptp4l0-21swapper/112:03:041
134491490,3ptp4l0-21swapper/107:53:431
134491490,3ptp4l0-21swapper/107:53:431
3118799482,20cyclictest0-21swapper/009:04:020
134491480,8ptp4l0-21swapper/209:30:272
134491480,4ptp4l0-21swapper/308:22:523
134491480,4ptp4l0-21swapper/109:47:221
134491480,4ptp4l0-21swapper/108:05:441
134491480,3ptp4l0-21swapper/208:09:502
134491480,12ptp4l33-21ksoftirqd/211:30:222
134491470,9ptp4l0-21swapper/107:05:121
134491470,4ptp4l0-21swapper/211:05:252
134491470,4ptp4l0-21swapper/208:50:572
134491470,4ptp4l0-21swapper/208:31:412
134491470,4ptp4l0-21swapper/207:35:112
134491470,4ptp4l0-21swapper/109:06:321
134491470,4ptp4l0-21swapper/109:06:311
134491470,4ptp4l0-21swapper/108:44:041
134491470,3ptp4l0-21swapper/212:12:332
134491470,3ptp4l0-21swapper/111:55:121
134491470,13ptp4l31301-21/usr/sbin/munin09:30:223
3119099461,3cyclictest121rcu_preempt12:39:393
134491460,4ptp4l0-21swapper/208:20:202
134491450,9ptp4l0-21swapper/310:27:063
134491450,4ptp4l0-21swapper/108:11:441
134491450,3ptp4l0-21swapper/208:16:462
134491450,3ptp4l0-21swapper/110:56:101
31190994438,3cyclictest41-21ksoftirqd/312:20:003
3118799440,31cyclictest26108-21taskset08:07:360
134491430,4ptp4l0-21swapper/110:02:071
134491430,4ptp4l0-21swapper/110:02:071
134491430,4ptp4l0-21swapper/008:25:070
134491430,3ptp4l0-21swapper/310:04:493
134491430,3ptp4l0-21swapper/310:04:493
134491430,10ptp4l0-21swapper/009:34:120
31190994237,3cyclictest41-21ksoftirqd/311:30:003
31190994235,4cyclictest41-21ksoftirqd/311:20:173
31190994230,9cyclictest41-21ksoftirqd/308:10:173
3118799420,29cyclictest12552-21taskset08:49:320
134491420,9ptp4l0-21swapper/208:11:002
134491420,8ptp4l0-21swapper/212:32:472
134491420,4ptp4l0-21swapper/309:49:583
134491420,4ptp4l0-21swapper/112:37:561
134491420,4ptp4l0-21swapper/111:38:001
134491420,4ptp4l0-21swapper/109:51:141
134491420,10ptp4l0-21swapper/309:15:283
31190994134,3cyclictest41-21ksoftirqd/311:00:013
134491410,8ptp4l0-21swapper/212:36:272
134491410,7ptp4l25-21ksoftirqd/107:24:391
134491410,5ptp4l28438-21memory11:40:261
134491410,4ptp4l9469-21diskstats12:10:201
134491410,4ptp4l2249-21meminfo08:25:241
134491410,4ptp4l0-21swapper/208:55:242
134491410,4ptp4l0-21swapper/109:24:421
134491410,4ptp4l0-21swapper/108:15:061
134491410,3ptp4l8760-21apt-get11:00:162
134491410,3ptp4l10691-21apt-get09:55:191
134491410,3ptp4l0-21swapper/210:59:382
31190994034,3cyclictest41-21ksoftirqd/312:00:003
134491400,5ptp4l0-21swapper/307:40:273
134491400,5ptp4l0-21swapper/112:20:261
134491400,5ptp4l0-21swapper/111:11:221
134491400,5ptp4l0-21swapper/011:55:180
134491400,4ptp4l9342-21memory09:50:242
134491400,4ptp4l23032-21df11:30:201
134491400,4ptp4l1096-21apt-get10:45:043
134491400,4ptp4l0-21swapper/312:00:193
134491400,4ptp4l0-21swapper/310:15:563
134491400,4ptp4l0-21swapper/307:10:243
134491400,4ptp4l0-21swapper/307:10:243
134491400,4ptp4l0-21swapper/212:16:492
134491400,4ptp4l0-21swapper/211:55:162
134491400,4ptp4l0-21swapper/210:50:262
134491400,4ptp4l0-21swapper/210:45:022
134491400,4ptp4l0-21swapper/209:55:322
134491400,4ptp4l0-21swapper/110:53:591
134491400,3ptp4l6960-21ls08:35:262
134491400,3ptp4l16865-21ls10:05:333
134491400,3ptp4l15301-21apt-get10:05:182
134491400,3ptp4l12625-21ls11:05:323
134491400,3ptp4l0-21swapper/208:45:532
134491400,2ptp4l5799-21apt-get07:25:161
31190993935,3cyclictest41-21ksoftirqd/307:25:193
31190993934,3cyclictest41-21ksoftirqd/310:20:233
31190993934,3cyclictest41-21ksoftirqd/309:55:003
31190993933,3cyclictest41-21ksoftirqd/308:30:003
134491390,5ptp4l0-21swapper/207:45:182
134491390,4ptp4l26596-21sed09:20:001
134491390,4ptp4l23015-21memory09:10:382
134491390,4ptp4l0-21swapper/311:50:273
134491390,4ptp4l0-21swapper/309:25:323
134491390,4ptp4l0-21swapper/309:22:083
134491390,4ptp4l0-21swapper/308:15:283
134491390,4ptp4l0-21swapper/307:45:243
134491390,4ptp4l0-21swapper/211:50:332
134491390,4ptp4l0-21swapper/211:35:242
134491390,4ptp4l0-21swapper/209:40:392
134491390,4ptp4l0-21swapper/209:09:312
134491390,4ptp4l0-21swapper/209:09:312
134491390,4ptp4l0-21swapper/207:56:112
134491390,4ptp4l0-21swapper/207:17:012
134491390,4ptp4l0-21swapper/111:25:181
134491390,4ptp4l0-21swapper/110:45:231
134491390,4ptp4l0-21swapper/110:40:241
134491390,4ptp4l0-21swapper/109:32:181
134491390,4ptp4l0-21swapper/109:28:221
134491390,4ptp4l0-21swapper/109:10:021
134491390,4ptp4l0-21swapper/108:56:311
134491390,4ptp4l0-21swapper/108:54:531
134491390,4ptp4l0-21swapper/108:38:101
134491390,4ptp4l0-21swapper/108:30:221
134491390,4ptp4l0-21swapper/108:20:361
134491390,3ptp4l23150-21ls10:20:252
134491390,3ptp4l1521-21diskstats09:35:212
134491390,3ptp4l0-21swapper/311:45:253
134491390,3ptp4l0-21swapper/310:40:483
134491390,3ptp4l0-21swapper/308:50:173
134491390,3ptp4l0-21swapper/209:00:122
134491390,3ptp4l0-21swapper/107:35:211
134491380,4ptp4l0-21swapper/312:26:393
134491380,4ptp4l0-21swapper/308:06:143
134491380,4ptp4l0-21swapper/307:50:573
134491380,4ptp4l0-21swapper/307:50:573
134491380,4ptp4l0-21swapper/212:29:172
134491380,4ptp4l0-21swapper/212:06:452
134491380,4ptp4l0-21swapper/211:11:532
134491380,4ptp4l0-21swapper/210:30:452
134491380,4ptp4l0-21swapper/210:15:212
134491380,4ptp4l0-21swapper/209:20:522
134491380,4ptp4l0-21swapper/112:26:551
134491380,4ptp4l0-21swapper/110:06:591
134491380,4ptp4l0-21swapper/109:40:271
134491380,4ptp4l0-21swapper/109:00:191
134491380,4ptp4l0-21swapper/008:01:400
134491380,3ptp4l22223-21/usr/sbin/munin08:00:183
134491380,3ptp4l18710-21ntp_states10:10:313
134491380,3ptp4l0-21swapper/207:43:512
134491380,3ptp4l0-21swapper/207:22:252
134491380,3ptp4l0-21swapper/107:40:301
31190993732,3cyclictest41-21ksoftirqd/312:30:323
31190993723,3cyclictest41-21ksoftirqd/311:15:323
134491370,4ptp4l0-21swapper/311:42:033
134491370,4ptp4l0-21swapper/307:58:203
134491370,4ptp4l0-21swapper/108:45:041
134491370,3ptp4l0-21swapper/312:13:393
134491370,3ptp4l0-21swapper/311:30:233
134491370,3ptp4l0-21swapper/310:37:533
134491370,3ptp4l0-21swapper/309:55:253
134491370,3ptp4l0-21swapper/211:40:082
31190993632,2cyclictest41-21ksoftirqd/311:35:243
134491360,4ptp4l0-21swapper/312:06:483
134491360,3ptp4l0-21swapper/312:20:233
137891243,13phc2sys29157-21df_inode07:05:143
3058821811,3sleep20-21swapper/207:06:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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