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2026-05-14 - 20:38
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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 Thu May 14, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491670,4ptp4l0-21swapper/010:40:240
134491640,4ptp4l0-21swapper/307:15:243
69532630,5sleep20-21swapper/210:05:242
134491620,22ptp4l0-21swapper/010:15:270
134491610,4ptp4l4063-21cut11:10:162
134491600,4ptp4l0-21swapper/011:22:440
134491590,4ptp4l0-21swapper/210:00:462
134491590,3ptp4l0-21swapper/008:12:430
134491580,4ptp4l0-21swapper/309:44:573
134491580,3ptp4l0-21swapper/309:29:563
134491580,3ptp4l0-21swapper/309:29:563
134491580,3ptp4l0-21swapper/308:27:403
134491580,3ptp4l0-21swapper/308:27:403
134491570,4ptp4l0-21swapper/312:39:493
134491570,4ptp4l0-21swapper/207:52:472
134491570,3ptp4l0-21swapper/208:35:172
134491560,4ptp4l0-21swapper/311:30:483
134491560,4ptp4l0-21swapper/210:40:552
134491560,4ptp4l0-21swapper/209:03:272
134491560,4ptp4l0-21swapper/207:32:072
134491560,4ptp4l0-21swapper/111:34:151
134491560,4ptp4l0-21swapper/107:59:261
134491560,4ptp4l0-21swapper/010:30:170
134491560,3ptp4l0-21swapper/307:55:263
134491560,3ptp4l0-21swapper/208:55:322
134491560,3ptp4l0-21swapper/208:55:322
134491560,12ptp4l18689-21apt-get07:05:021
134491550,4ptp4l0-21swapper/311:23:313
134491550,4ptp4l0-21swapper/011:34:000
134491550,3ptp4l0-21swapper/309:30:183
134491540,4ptp4l0-21swapper/212:29:272
134491540,4ptp4l0-21swapper/207:25:082
134491540,4ptp4l0-21swapper/008:22:590
134491540,4ptp4l0-21swapper/007:07:370
134491540,3ptp4l0-21swapper/310:48:553
134491540,14ptp4l0-21swapper/307:40:253
134491530,4ptp4l0-21swapper/312:15:283
134491530,4ptp4l0-21swapper/312:15:283
134491530,4ptp4l0-21swapper/308:52:553
134491530,4ptp4l0-21swapper/012:10:080
134491530,3ptp4l0-21swapper/310:22:583
134491530,3ptp4l0-21swapper/210:56:542
134491530,3ptp4l0-21swapper/210:20:432
134491530,3ptp4l0-21swapper/110:23:571
134491530,3ptp4l0-21swapper/007:49:520
134491520,4ptp4l0-21swapper/312:01:203
134491520,4ptp4l0-21swapper/308:48:593
134491520,4ptp4l0-21swapper/208:51:572
134491520,3ptp4l0-21swapper/310:38:113
134491520,3ptp4l0-21swapper/208:46:092
134491520,2ptp4l0-21swapper/307:11:123
134491520,11ptp4l0-21swapper/209:42:082
134491510,4ptp4l0-21swapper/308:15:053
134491510,4ptp4l0-21swapper/209:55:352
134491510,4ptp4l0-21swapper/209:55:352
134491510,4ptp4l0-21swapper/108:18:231
134491510,4ptp4l0-21swapper/011:46:080
134491510,4ptp4l0-21swapper/011:35:360
134491510,3ptp4l0-21swapper/211:44:362
134491510,3ptp4l0-21swapper/210:18:042
134491510,3ptp4l0-21swapper/110:58:521
134491500,4ptp4l0-21swapper/312:23:053
134491500,4ptp4l0-21swapper/308:12:313
134491500,4ptp4l0-21swapper/207:16:292
134491500,10ptp4l0-21swapper/212:10:192
134491490,4ptp4l0-21swapper/311:40:313
134491490,4ptp4l0-21swapper/211:45:482
134491490,4ptp4l0-21swapper/008:38:230
134491490,3ptp4l0-21swapper/107:52:581
134491490,10ptp4l0-21swapper/210:54:222
134491480,8ptp4l0-21swapper/211:37:502
134491480,5ptp4l0-21swapper/311:50:223
134491480,4ptp4l0-21swapper/309:10:033
134491480,4ptp4l0-21swapper/012:37:090
134491480,4ptp4l0-21swapper/007:11:180
134491480,3ptp4l0-21swapper/112:35:491
134491470,4ptp4l0-21swapper/012:26:480
134491470,3ptp4l0-21swapper/209:37:222
2147899462,2cyclictest121rcu_preempt10:45:522
134491460,4ptp4l0-21swapper/311:26:063
134491460,4ptp4l0-21swapper/310:26:003
134491460,4ptp4l0-21swapper/309:04:583
134491460,4ptp4l0-21swapper/208:43:242
134491460,4ptp4l0-21swapper/109:33:211
134491460,4ptp4l0-21swapper/108:48:571
134491460,3ptp4l0-21swapper/308:39:123
134491460,3ptp4l0-21swapper/212:24:162
21478994512,8cyclictest33-21ksoftirqd/212:15:212
21478994512,8cyclictest33-21ksoftirqd/212:15:212
21478994511,4cyclictest33-21ksoftirqd/208:19:592
21476994539,4cyclictest9-21ksoftirqd/011:00:230
134491450,9ptp4l0-21swapper/210:31:202
134491450,6ptp4l0-21swapper/010:25:120
134491450,4ptp4l5423-21apt-get10:05:103
134491450,3ptp4l0-21swapper/209:06:002
134491450,12ptp4l0-21swapper/312:05:493
134491450,10ptp4l0-21swapper/110:40:141
134491450,10ptp4l0-21swapper/108:52:411
2147899442,5cyclictest121rcu_preempt09:19:432
21478994414,4cyclictest33-21ksoftirqd/209:10:142
134491440,9ptp4l0-21swapper/209:51:592
134491440,6ptp4l0-21swapper/308:24:443
134491440,4ptp4l0-21swapper/310:00:303
134491440,4ptp4l0-21swapper/309:37:213
134491440,4ptp4l0-21swapper/307:51:183
134491440,4ptp4l0-21swapper/307:45:533
134491440,4ptp4l0-21swapper/112:23:141
134491440,4ptp4l0-21swapper/111:55:531
134491440,4ptp4l0-21swapper/110:11:581
134491440,4ptp4l0-21swapper/109:35:111
134491440,3ptp4l0-21swapper/108:01:301
21478994332,9cyclictest33-21ksoftirqd/210:10:252
21478994322,8cyclictest33-21ksoftirqd/211:07:102
21478994310,4cyclictest33-21ksoftirqd/212:32:402
134491430,9ptp4l0-21swapper/208:09:432
134491430,9ptp4l0-21swapper/111:39:151
134491430,9ptp4l0-21swapper/109:55:071
134491430,9ptp4l0-21swapper/109:55:071
134491430,6ptp4l13500-21/usr/sbin/munin10:20:210
134491430,6ptp4l0-21swapper/111:10:251
134491430,4ptp4l9927-21apt-get07:55:112
134491430,4ptp4l7926-21df10:10:130
134491430,4ptp4l0-21swapper/310:15:183
134491430,4ptp4l0-21swapper/211:57:322
134491430,4ptp4l0-21swapper/211:51:342
134491430,4ptp4l0-21swapper/209:34:172
134491430,4ptp4l0-21swapper/111:04:311
134491430,4ptp4l0-21swapper/110:35:501
134491430,3ptp4l0-21swapper/108:07:361
134491430,10ptp4l0-21swapper/207:42:252
134491430,10ptp4l0-21swapper/207:22:502
134491430,10ptp4l0-21swapper/110:45:181
134491430,10ptp4l0-21swapper/110:15:191
134491430,10ptp4l0-21swapper/108:27:151
134491430,10ptp4l0-21swapper/108:27:151
21478994237,3cyclictest38392irq/126-enp1s0-09:45:212
21478994237,3cyclictest33-21ksoftirqd/211:20:002
21476994236,3cyclictest9-21ksoftirqd/007:20:000
21476994225,7cyclictest9-21ksoftirqd/010:55:180
134491420,9ptp4l0-21swapper/110:28:231
134491420,8ptp4l19909-21cut09:25:201
134491420,8ptp4l19909-21cut09:25:201
134491420,6ptp4l0-21swapper/009:40:280
134491420,5ptp4l0-21swapper/312:25:263
134491420,5ptp4l0-21swapper/311:45:193
134491420,5ptp4l0-21swapper/208:10:102
134491420,5ptp4l0-21swapper/108:40:181
134491420,4ptp4l5903-21iostat_ios07:45:162
134491420,4ptp4l27031-21diskstats12:00:150
134491420,4ptp4l22417-21diskstats11:50:140
134491420,4ptp4l20384-21meminfo10:35:200
134491420,4ptp4l0-21swapper/309:16:463
134491420,4ptp4l0-21swapper/211:00:492
134491420,4ptp4l0-21swapper/209:23:342
134491420,4ptp4l0-21swapper/207:14:132
134491420,4ptp4l0-21swapper/011:43:300
134491420,3ptp4l12238-21apt-get08:00:123
134491420,3ptp4l0-21swapper/310:31:253
134491420,3ptp4l0-21swapper/212:36:082
134491420,3ptp4l0-21swapper/111:44:061
134491420,3ptp4l0-21swapper/107:25:181
134491420,3ptp4l0-21swapper/010:50:160
21479994134,4cyclictest41-21ksoftirqd/311:15:003
2147899419,3cyclictest33-21ksoftirqd/208:21:292
21478994136,3cyclictest33-21ksoftirqd/211:25:222
21478994136,3cyclictest33-21ksoftirqd/208:30:222
21478994136,2cyclictest33-21ksoftirqd/211:20:122
21478994135,3cyclictest33-21ksoftirqd/210:38:582
2147899411,3cyclictest121rcu_preempt09:27:582
2147899411,3cyclictest121rcu_preempt09:27:582
21478994111,8cyclictest33-21ksoftirqd/208:25:292
21478994111,8cyclictest33-21ksoftirqd/208:25:282
21478994110,7cyclictest33-21ksoftirqd/212:10:002
21476994135,4cyclictest9-21ksoftirqd/009:55:190
21476994135,4cyclictest9-21ksoftirqd/009:55:190
134491410,5ptp4l0-21swapper/309:50:123
134491410,5ptp4l0-21swapper/308:55:123
134491410,5ptp4l0-21swapper/308:55:123
134491410,5ptp4l0-21swapper/110:00:351
134491410,5ptp4l0-21swapper/008:30:170
134491410,4ptp4l31196-21hddtemp_smartct07:30:150
134491410,4ptp4l23967-21apt-get08:25:120
134491410,4ptp4l23967-21apt-get08:25:120
134491410,4ptp4l1779-21memory08:45:210
134491410,4ptp4l1508-21irqstats07:35:193
134491410,4ptp4l0-21swapper/311:15:463
134491410,4ptp4l0-21swapper/311:05:133
134491410,4ptp4l0-21swapper/308:33:023
134491410,4ptp4l0-21swapper/307:23:433
134491410,4ptp4l0-21swapper/111:20:141
134491410,4ptp4l0-21swapper/009:45:250
134491410,4ptp4l0-21swapper/009:26:090
134491410,4ptp4l0-21swapper/009:26:090
134491410,4ptp4l0-21swapper/009:24:180
21478994030,8cyclictest33-21ksoftirqd/208:00:232
2147799400,2cyclictest3039-21apt-get07:40:131
21476994034,4cyclictest28548-21kworker/0:212:30:060
134491400,6ptp4l2454-21sed09:55:283
134491400,6ptp4l2454-21sed09:55:283
134491400,5ptp4l4889-21processes12:20:240
134491400,5ptp4l25-21ksoftirqd/110:30:181
134491400,5ptp4l0-21swapper/110:05:201
134491400,5ptp4l0-21swapper/108:30:241
134491400,5ptp4l0-21swapper/011:15:180
134491400,5ptp4l0-21swapper/007:43:430
134491400,4ptp4l8582-21memory07:50:200
134491400,4ptp4l30416-21python12:05:240
134491400,4ptp4l2915-21latency_hist07:40:011
134491400,4ptp4l25359-21memory11:55:220
134491400,4ptp4l21669-21apt-get08:20:121
134491400,4ptp4l10500-21iostat_ios07:55:170
134491400,4ptp4l0-21swapper/311:55:223
134491400,4ptp4l0-21swapper/309:49:233
134491400,4ptp4l0-21swapper/207:37:252
134491400,4ptp4l0-21swapper/112:32:431
134491400,4ptp4l0-21swapper/111:49:581
134491400,4ptp4l0-21swapper/109:09:191
134491400,4ptp4l0-21swapper/011:27:000
134491400,4ptp4l0-21swapper/011:12:090
134491400,4ptp4l0-21swapper/010:05:200
134491400,4ptp4l0-21swapper/009:37:340
134491400,4ptp4l0-21swapper/009:32:510
134491400,4ptp4l0-21swapper/009:10:190
134491400,4ptp4l0-21swapper/008:16:190
134491400,4ptp4l0-21swapper/008:04:020
134491400,3ptp4l953-21diskstats07:35:140
134491400,3ptp4l4127-21meminfo08:50:200
134491400,3ptp4l3434-21diskstats10:00:130
134491400,3ptp4l30022-21meminfo12:05:191
134491400,3ptp4l29623-21/usr/sbin/munin07:25:220
134491400,3ptp4l0-21swapper/008:41:190
21477993913,23cyclictest6401-21irqstats11:15:181
2147799390,2cyclictest15947-21/usr/sbin/munin09:15:241
21476993932,4cyclictest9-21ksoftirqd/009:01:120
134491390,5ptp4l0-21swapper/311:37:303
134491390,5ptp4l0-21swapper/108:35:281
134491390,5ptp4l0-21swapper/008:05:210
134491390,4ptp4l31476-21irqrtprio09:50:160
134491390,4ptp4l18213-21ps09:20:231
134491390,4ptp4l0-21swapper/312:30:433
134491390,4ptp4l0-21swapper/312:13:363
134491390,4ptp4l0-21swapper/311:00:223
134491390,4ptp4l0-21swapper/310:55:163
134491390,4ptp4l0-21swapper/310:50:183
134491390,4ptp4l0-21swapper/309:20:283
134491390,4ptp4l0-21swapper/309:06:403
134491390,4ptp4l0-21swapper/308:40:143
134491390,4ptp4l0-21swapper/308:05:243
134491390,4ptp4l0-21swapper/307:30:273
134491390,4ptp4l0-21swapper/307:28:363
134491390,4ptp4l0-21swapper/211:30:102
134491390,4ptp4l0-21swapper/210:25:152
134491390,4ptp4l0-21swapper/112:25:231
134491390,4ptp4l0-21swapper/112:17:481
134491390,4ptp4l0-21swapper/112:17:481
134491390,4ptp4l0-21swapper/111:53:571
134491390,4ptp4l0-21swapper/111:08:021
134491390,4ptp4l0-21swapper/109:54:451
134491390,4ptp4l0-21swapper/108:56:361
134491390,4ptp4l0-21swapper/108:56:361
134491390,4ptp4l0-21swapper/107:45:151
134491390,4ptp4l0-21swapper/107:30:141
134491390,4ptp4l0-21swapper/107:15:221
134491390,4ptp4l0-21swapper/107:13:141
134491390,4ptp4l0-21swapper/012:15:280
134491390,4ptp4l0-21swapper/012:15:280
134491390,4ptp4l0-21swapper/010:46:050
134491390,4ptp4l0-21swapper/009:15:240
134491390,4ptp4l0-21swapper/009:06:130
134491390,4ptp4l0-21swapper/008:58:400
134491390,4ptp4l0-21swapper/008:58:400
134491390,4ptp4l0-21swapper/007:21:380
134491390,3ptp4l13161-21irqrtprio09:10:211
134491390,3ptp4l0-21swapper/310:41:443
134491390,3ptp4l0-21swapper/212:00:262
134491390,3ptp4l0-21swapper/112:00:221
134491390,2ptp4l1960-21strings11:05:210
134491380,4ptp4l0-21swapper/310:10:143
134491380,4ptp4l0-21swapper/112:10:321
134491380,4ptp4l0-21swapper/111:26:471
134491380,4ptp4l0-21swapper/109:45:251
134491380,4ptp4l0-21swapper/109:04:381
134491380,4ptp4l0-21swapper/108:10:351
134491380,4ptp4l0-21swapper/107:20:361
134491380,3ptp4l0-21swapper/110:50:211
134491380,3ptp4l0-21swapper/109:40:281
137891253,15phc2sys19145-21apt-get07:05:113
202212182,9sleep220261-21ntp_states07:05:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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