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2026-08-28 - 00:04
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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 Aug 27, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111112850,5sleep10-21swapper/111:20:271
141462810,4sleep00-21swapper/011:30:000
285182680,5sleep10-21swapper/108:30:211
134491660,27ptp4l15140-21meminfo10:20:211
134491620,4ptp4l0-21swapper/209:00:012
134491610,4ptp4l0-21swapper/208:38:042
134491610,18ptp4l0-21swapper/107:45:001
134491590,4ptp4l0-21swapper/211:00:222
134491590,4ptp4l0-21swapper/008:12:310
134491580,3ptp4l0-21swapper/308:34:253
134491570,11ptp4l21364-21nfs4_client07:05:201
134491560,3ptp4l13761-21cpuspeed_turbos09:10:151
137952550,3sleep313800-21cpuspeed_turbos08:00:143
134491550,5ptp4l25-21ksoftirqd/108:10:191
134491550,4ptp4l0-21swapper/311:42:153
134491550,3ptp4l0-21swapper/111:15:271
134491550,3ptp4l0-21swapper/109:05:021
134491550,3ptp4l0-21swapper/107:50:191
134491550,3ptp4l0-21swapper/107:15:251
134491540,4ptp4l0-21swapper/010:37:260
134491540,3ptp4l0-21swapper/108:19:341
134491530,4ptp4l0-21swapper/311:35:373
134491530,4ptp4l0-21swapper/007:34:280
134491520,4ptp4l17788-21chrt09:15:290
134491520,4ptp4l0-21swapper/310:46:583
134491520,3ptp4l0-21swapper/109:49:351
134491520,3ptp4l0-21swapper/109:49:351
134491510,5ptp4l23229-21diskstats07:10:140
134491510,4ptp4l0-21swapper/108:25:571
134491510,4ptp4l0-21swapper/107:21:161
134491510,4ptp4l0-21swapper/007:27:580
134491510,3ptp4l0-21swapper/211:40:562
134491510,3ptp4l0-21swapper/110:30:391
134491510,3ptp4l0-21swapper/109:20:341
134491510,12ptp4l0-21swapper/107:25:171
134491510,11ptp4l9-21ksoftirqd/008:05:460
134491500,4ptp4l0-21swapper/311:47:213
134491500,4ptp4l0-21swapper/011:59:520
134491500,4ptp4l0-21swapper/011:16:100
134491500,4ptp4l0-21swapper/011:06:460
134491500,4ptp4l0-21swapper/009:52:120
134491500,4ptp4l0-21swapper/007:54:350
134491500,3ptp4l0-21swapper/308:18:113
22870994928,10cyclictest33-21ksoftirqd/208:00:242
134491490,4ptp4l0-21swapper/311:26:293
134491490,4ptp4l0-21swapper/210:04:072
134491490,4ptp4l0-21swapper/110:36:031
134491490,4ptp4l0-21swapper/108:08:221
134491490,4ptp4l0-21swapper/011:54:480
134491490,4ptp4l0-21swapper/011:34:240
134491490,4ptp4l0-21swapper/010:05:270
134491480,4ptp4l0-21swapper/312:20:053
134491480,4ptp4l0-21swapper/312:17:353
134491480,4ptp4l0-21swapper/111:59:211
134491480,3ptp4l0-21swapper/110:02:041
134491470,7ptp4l0-21swapper/109:41:291
134491470,4ptp4l0-21swapper/312:08:373
134491470,4ptp4l0-21swapper/012:15:020
134491470,3ptp4l0-21swapper/111:03:101
134491470,3ptp4l0-21swapper/110:57:511
134491470,12ptp4l0-21swapper/107:48:551
46198460,12rtkit-daemon0-21swapper/210:37:432
2287099461,3cyclictest121rcu_preempt12:06:322
134491460,4ptp4l0-21swapper/311:32:103
134491460,4ptp4l0-21swapper/308:27:053
134491460,4ptp4l0-21swapper/111:31:421
134491460,4ptp4l0-21swapper/110:14:531
134491460,4ptp4l0-21swapper/109:35:441
134491460,3ptp4l0-21swapper/307:50:323
134491460,3ptp4l0-21swapper/107:31:441
134491460,3ptp4l0-21swapper/011:37:130
134491460,2ptp4l121rcu_preempt12:25:261
134491450,5ptp4l0-21swapper/209:55:192
134491450,4ptp4l0-21swapper/310:55:103
134491450,4ptp4l0-21swapper/308:21:223
134491450,4ptp4l0-21swapper/211:27:452
134491450,3ptp4l4672-21apt-get11:10:032
134491450,3ptp4l0-21swapper/112:07:311
134491450,3ptp4l0-21swapper/110:06:451
134491450,3ptp4l0-21swapper/108:46:201
134491450,3ptp4l0-21swapper/009:40:310
134491450,2ptp4l0-21swapper/107:14:401
2287099440,2cyclictest121rcu_preempt10:14:202
2287099440,2cyclictest121rcu_preempt07:55:492
134491440,9ptp4l0-21swapper/210:55:422
134491440,9ptp4l0-21swapper/209:23:512
134491440,9ptp4l0-21swapper/209:11:022
134491440,9ptp4l0-21swapper/207:33:332
134491440,9ptp4l0-21swapper/207:13:132
134491440,8ptp4l0-21swapper/209:04:542
134491440,5ptp4l4384-21apt-get08:50:122
134491440,5ptp4l0-21swapper/009:30:130
134491440,4ptp4l0-21swapper/212:03:092
134491440,4ptp4l0-21swapper/211:37:342
134491440,4ptp4l0-21swapper/210:40:302
134491440,3ptp4l22887-21apt-get08:20:122
134491440,3ptp4l0-21swapper/110:54:581
134491440,10ptp4l0-21swapper/208:28:132
22870994338,2cyclictest33-21ksoftirqd/212:20:012
134491430,9ptp4l0-21swapper/211:20:432
134491430,9ptp4l0-21swapper/208:48:302
134491430,8ptp4l0-21swapper/212:30:062
134491430,8ptp4l0-21swapper/212:23:522
134491430,7ptp4l0-21swapper/010:26:550
134491430,4ptp4l0-21swapper/309:05:193
134491430,4ptp4l0-21swapper/110:28:001
134491430,3ptp4l0-21swapper/110:44:161
134491430,3ptp4l0-21swapper/012:09:480
134491430,3ptp4l0-21swapper/009:05:150
2287099423,9cyclictest0-21swapper/209:45:292
2287099423,9cyclictest0-21swapper/209:45:292
22870994229,11cyclictest33-21ksoftirqd/212:10:122
2287099421,3cyclictest121rcu_preempt08:15:562
2287099420,2cyclictest121rcu_preempt10:18:092
22868994237,3cyclictest9-21ksoftirqd/007:39:590
134691420,9getstats0-21swapper/311:04:283
134691420,10getstats0-21swapper/309:19:573
134491420,9ptp4l0-21swapper/210:26:522
134491420,8ptp4l0-21swapper/210:20:242
134491420,6ptp4l0-21swapper/210:48:192
134491420,5ptp4l2286899cyclictest08:35:090
134491420,4ptp4l23452-21iostat08:20:170
134491420,4ptp4l11452-21python12:30:261
134491420,4ptp4l0-21swapper/309:30:273
134491420,4ptp4l0-21swapper/307:57:243
134491420,3ptp4l25373-21apt-get09:35:112
46198410,11rtkit-daemon0-21swapper/307:44:393
46198410,10rtkit-daemon0-21swapper/309:37:213
2287099417,4cyclictest33-21ksoftirqd/211:16:062
22868994136,3cyclictest9-21ksoftirqd/008:35:000
134691410,10getstats0-21swapper/312:30:593
134691410,10getstats0-21swapper/310:05:313
134691410,10getstats0-21swapper/308:45:583
134491410,5ptp4l0-21swapper/312:10:113
134491410,5ptp4l0-21swapper/311:50:153
134491410,5ptp4l0-21swapper/208:34:142
134491410,5ptp4l0-21swapper/207:27:002
134491410,5ptp4l0-21swapper/011:40:270
134491410,5ptp4l0-21swapper/010:45:220
134491410,5ptp4l0-21swapper/010:15:160
134491410,4ptp4l20504-21apt-get08:15:130
134491410,4ptp4l1745-21ntp_states12:10:220
134491410,4ptp4l11424-21users11:20:290
134491410,4ptp4l10668-21users09:00:283
134491410,4ptp4l0-21swapper/211:48:452
134491410,4ptp4l0-21swapper/208:10:322
134491410,4ptp4l0-21swapper/109:50:121
134491410,4ptp4l0-21swapper/109:30:141
134491410,4ptp4l0-21swapper/009:10:260
134491410,4ptp4l0-21swapper/007:05:150
134491410,3ptp4l4948-21iostat08:50:180
134491410,3ptp4l32131-21apt-get08:40:123
134491410,3ptp4l25681-21diskstats09:35:140
46198400,4rtkit-daemon0-21swapper/212:35:222
22870994036,2cyclictest33-21ksoftirqd/210:55:002
22870994035,3cyclictest33-21ksoftirqd/211:35:002
22870994034,3cyclictest33-21ksoftirqd/207:50:182
2286999403,36cyclictest0-21swapper/108:57:581
134691400,9getstats0-21swapper/310:25:533
134491400,5ptp4l29751-21timerwakeupswit12:00:280
134491400,5ptp4l2287199cyclictest12:00:123
134491400,5ptp4l0-21swapper/307:30:113
134491400,5ptp4l0-21swapper/210:05:252
134491400,5ptp4l0-21swapper/209:18:562
134491400,5ptp4l0-21swapper/010:20:140
134491400,4ptp4l8551-21ntp_states11:15:243
134491400,4ptp4l3560-21ntp_states09:55:211
134491400,4ptp4l25906-21apt-get11:55:142
134491400,4ptp4l19047-21irqstats08:10:173
134491400,4ptp4l0-21swapper/311:59:563
134491400,4ptp4l0-21swapper/311:10:173
134491400,4ptp4l0-21swapper/211:08:242
134491400,4ptp4l0-21swapper/209:40:072
134491400,4ptp4l0-21swapper/209:31:542
134491400,4ptp4l0-21swapper/209:27:232
134491400,4ptp4l0-21swapper/207:45:142
134491400,4ptp4l0-21swapper/207:40:562
134491400,4ptp4l0-21swapper/207:37:252
134491400,4ptp4l0-21swapper/207:22:352
134491400,4ptp4l0-21swapper/207:15:042
134491400,4ptp4l0-21swapper/111:37:031
134491400,4ptp4l0-21swapper/012:36:080
134491400,4ptp4l0-21swapper/012:34:360
134491400,4ptp4l0-21swapper/012:27:130
134491400,4ptp4l0-21swapper/012:20:440
134491400,4ptp4l0-21swapper/011:45:120
134491400,4ptp4l0-21swapper/011:10:260
134491400,4ptp4l0-21swapper/009:48:510
134491400,4ptp4l0-21swapper/009:48:510
134491400,4ptp4l0-21swapper/009:24:310
134491400,4ptp4l0-21swapper/008:25:200
134491400,4ptp4l0-21swapper/007:57:270
134491400,4ptp4l0-21swapper/007:20:220
134491400,3ptp4l9842-21irqstats09:00:191
134491400,3ptp4l25640-21perl07:15:160
134491400,10ptp4l0-21swapper/112:12:311
134491390,5ptp4l0-21swapper/310:02:343
134491390,5ptp4l0-21swapper/208:40:272
134491390,4ptp4l4292-21/usr/sbin/munin11:05:281
134491390,4ptp4l3621-21/usr/sbin/munin12:15:151
134491390,4ptp4l30595-21sed10:55:130
134491390,4ptp4l28329-21df_abs10:50:140
134491390,4ptp4l12796-21grep07:55:271
134491390,4ptp4l0-21swapper/312:36:423
134491390,4ptp4l0-21swapper/311:05:213
134491390,4ptp4l0-21swapper/310:40:353
134491390,4ptp4l0-21swapper/309:56:063
134491390,4ptp4l0-21swapper/309:44:443
134491390,4ptp4l0-21swapper/309:24:273
134491390,4ptp4l0-21swapper/307:47:543
134491390,4ptp4l0-21swapper/307:10:183
134491390,4ptp4l0-21swapper/212:26:052
134491390,4ptp4l0-21swapper/211:51:072
134491390,4ptp4l0-21swapper/210:30:162
134491390,4ptp4l0-21swapper/209:50:392
134491390,4ptp4l0-21swapper/209:07:422
134491390,4ptp4l0-21swapper/208:05:332
134491390,4ptp4l0-21swapper/112:35:461
134491390,4ptp4l0-21swapper/112:20:291
134491390,4ptp4l0-21swapper/111:40:371
134491390,4ptp4l0-21swapper/111:25:231
134491390,4ptp4l0-21swapper/111:14:341
134491390,4ptp4l0-21swapper/110:45:201
134491390,4ptp4l0-21swapper/110:15:141
134491390,4ptp4l0-21swapper/109:25:161
134491390,4ptp4l0-21swapper/109:15:181
134491390,4ptp4l0-21swapper/107:35:181
134491390,4ptp4l0-21swapper/011:00:260
134491390,4ptp4l0-21swapper/010:10:010
134491390,4ptp4l0-21swapper/009:55:130
134491390,4ptp4l0-21swapper/009:25:350
134491390,4ptp4l0-21swapper/009:02:210
134491390,4ptp4l0-21swapper/008:55:170
134491390,4ptp4l0-21swapper/008:46:170
134491390,4ptp4l0-21swapper/008:40:140
134491390,4ptp4l0-21swapper/007:40:260
134491390,3ptp4l24949-21/usr/sbin/munin11:50:251
134491390,3ptp4l24023-21iostat10:40:150
134491390,3ptp4l0-21swapper/008:01:490
134491380,5ptp4l0-21swapper/308:50:533
134491380,4ptp4l14520-21cat08:00:201
134491380,4ptp4l0-21swapper/312:28:253
134491380,4ptp4l0-21swapper/310:52:093
134491380,4ptp4l0-21swapper/310:39:193
134491380,4ptp4l0-21swapper/310:16:143
134491380,4ptp4l0-21swapper/310:10:263
134491380,4ptp4l0-21swapper/309:52:563
134491380,4ptp4l0-21swapper/309:46:163
134491380,4ptp4l0-21swapper/309:46:163
134491380,4ptp4l0-21swapper/309:10:233
134491380,4ptp4l0-21swapper/308:57:053
134491380,4ptp4l0-21swapper/308:35:413
134491380,4ptp4l0-21swapper/308:05:123
134491380,4ptp4l0-21swapper/307:23:003
134491380,4ptp4l0-21swapper/112:02:191
134491380,4ptp4l0-21swapper/108:50:471
134491380,4ptp4l0-21swapper/108:40:251
134491380,4ptp4l0-21swapper/108:20:211
134491380,4ptp4l0-21swapper/010:30:120
134491380,4ptp4l0-21swapper/010:00:150
134491380,4ptp4l0-21swapper/007:45:530
134491380,3ptp4l0-21swapper/311:23:023
134491380,3ptp4l0-21swapper/307:37:503
134491380,3ptp4l0-21swapper/307:27:083
134491380,3ptp4l0-21swapper/111:48:481
134491370,6ptp4l0-21swapper/108:35:111
134491370,4ptp4l0-21swapper/310:20:263
134491370,4ptp4l0-21swapper/307:17:423
134491370,3ptp4l0-21swapper/310:30:113
134491370,3ptp4l0-21swapper/309:27:473
137891233,4phc2sys0-21swapper/307:07:033
217182142,8sleep221918-21unixbench_multi07:05:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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