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2026-04-21 - 00:13
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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 Mon Apr 20, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9707997335,3cyclictest33-21ksoftirqd/209:50:152
134491700,6ptp4l0-21swapper/207:07:192
9706996812,22cyclictest13963-21ls08:25:271
9707996529,6cyclictest33-21ksoftirqd/209:35:242
134491650,5ptp4l0-21swapper/308:50:143
251352640,4sleep10-21swapper/111:10:191
134491640,4ptp4l0-21swapper/309:10:033
9707996333,3cyclictest33-21ksoftirqd/207:30:282
134491630,4ptp4l0-21swapper/309:00:123
9707996231,8cyclictest33-21ksoftirqd/210:20:242
9707996230,3cyclictest33-21ksoftirqd/210:50:272
9707996226,6cyclictest33-21ksoftirqd/212:05:152
9707996128,4cyclictest33-21ksoftirqd/209:25:192
134491610,3ptp4l18874-21ls12:05:183
9707996026,6cyclictest33-21ksoftirqd/207:10:212
134491600,4ptp4l13215-21phc2sys-jitter07:15:233
134491600,4ptp4l13215-21phc2sys-jitter07:15:233
134491600,4ptp4l0-21swapper/209:15:262
9707995927,5cyclictest33-21ksoftirqd/209:05:272
134491590,6ptp4l0-21swapper/107:08:451
134491590,4ptp4l0-21swapper/007:54:310
9707995832,6cyclictest33-21ksoftirqd/210:00:132
9707995831,7cyclictest33-21ksoftirqd/212:40:002
9707995828,4cyclictest33-21ksoftirqd/211:40:242
9707995827,4cyclictest33-21ksoftirqd/208:50:002
9707995826,6cyclictest33-21ksoftirqd/210:10:232
9707995826,5cyclictest33-21ksoftirqd/212:30:142
9707995826,4cyclictest33-21ksoftirqd/211:35:002
134491580,4ptp4l0-21swapper/310:30:423
134491580,4ptp4l0-21swapper/010:34:410
134491580,4ptp4l0-21swapper/008:59:550
9707995727,4cyclictest33-21ksoftirqd/209:43:462
9707995727,4cyclictest33-21ksoftirqd/208:24:232
9707995725,5cyclictest33-21ksoftirqd/212:20:192
134491570,4ptp4l0-21swapper/108:45:301
134491570,3ptp4l0-21swapper/310:45:203
134491570,3ptp4l0-21swapper/310:12:133
9707995628,7cyclictest33-21ksoftirqd/211:55:282
9707995628,4cyclictest33-21ksoftirqd/207:45:162
9707995627,4cyclictest33-21ksoftirqd/209:30:162
9707995627,3cyclictest33-21ksoftirqd/211:15:222
9707995627,3cyclictest33-21ksoftirqd/211:15:222
134491560,4ptp4l0-21swapper/011:38:360
134491560,3ptp4l0-21swapper/110:30:251
134491560,14ptp4l0-21swapper/312:31:323
134491560,11ptp4l0-21swapper/310:56:173
97742550,4sleep30-21swapper/308:20:013
9707995525,3cyclictest33-21ksoftirqd/210:17:442
9707995525,3cyclictest33-21ksoftirqd/207:51:582
9707995523,6cyclictest33-21ksoftirqd/210:55:172
9707995523,5cyclictest33-21ksoftirqd/208:30:272
9707995523,5cyclictest33-21ksoftirqd/208:00:142
9707995523,4cyclictest33-21ksoftirqd/208:55:242
9707995522,4cyclictest33-21ksoftirqd/208:14:192
9707995521,5cyclictest33-21ksoftirqd/209:55:252
9707995521,5cyclictest33-21ksoftirqd/208:50:172
9707995520,6cyclictest33-21ksoftirqd/207:55:152
9707995519,3cyclictest33-21ksoftirqd/212:15:012
134491550,4ptp4l0-21swapper/312:00:163
134491550,4ptp4l0-21swapper/308:23:333
134491550,4ptp4l0-21swapper/208:28:082
134491550,4ptp4l0-21swapper/011:28:010
134491550,4ptp4l0-21swapper/010:15:130
134491550,3ptp4l27886-21irqrtprio12:25:183
134491550,3ptp4l0-21swapper/210:05:012
9707995424,7cyclictest33-21ksoftirqd/211:20:142
9707995422,5cyclictest33-21ksoftirqd/212:26:152
9707995422,3cyclictest33-21ksoftirqd/207:20:272
9707995418,5cyclictest33-21ksoftirqd/210:40:222
134491540,4ptp4l0-21swapper/308:55:083
134491540,3ptp4l0-21swapper/312:19:293
134491540,3ptp4l0-21swapper/309:50:223
9707995324,3cyclictest33-21ksoftirqd/207:40:512
9707995323,3cyclictest33-21ksoftirqd/209:47:322
9707995314,7cyclictest33-21ksoftirqd/208:40:002
134491530,4ptp4l0-21swapper/307:31:413
9707995227,7cyclictest33-21ksoftirqd/210:35:162
9707995221,4cyclictest33-21ksoftirqd/211:05:202
9707995220,7cyclictest33-21ksoftirqd/207:15:222
9707995220,7cyclictest33-21ksoftirqd/207:15:222
9707995220,6cyclictest33-21ksoftirqd/211:55:002
9707995220,5cyclictest33-21ksoftirqd/208:15:182
9707995219,5cyclictest33-21ksoftirqd/209:20:162
134491520,4ptp4l0-21swapper/309:34:543
134491520,4ptp4l0-21swapper/308:02:333
134491520,3ptp4l0-21swapper/309:17:193
134491520,11ptp4l9-21ksoftirqd/011:17:190
134491520,11ptp4l9-21ksoftirqd/011:17:190
970799515,3cyclictest33-21ksoftirqd/207:35:222
9707995120,6cyclictest33-21ksoftirqd/210:34:412
264852510,4sleep10-21swapper/110:05:001
256612510,4sleep30-21swapper/311:10:253
134491510,4ptp4l0-21swapper/310:52:243
134491510,4ptp4l0-21swapper/308:48:193
134491510,3ptp4l0-21swapper/311:51:213
134491510,2ptp4l17168-21/usr/sbin/munin09:45:243
970799506,3cyclictest33-21ksoftirqd/208:40:162
9707995025,6cyclictest33-21ksoftirqd/210:27:542
9707995023,3cyclictest33-21ksoftirqd/211:35:162
9707995022,3cyclictest33-21ksoftirqd/209:10:202
9707995019,10cyclictest33-21ksoftirqd/211:25:182
9707995013,8cyclictest33-21ksoftirqd/212:15:232
134491500,9ptp4l0-21swapper/307:40:543
9707994917,8cyclictest33-21ksoftirqd/211:45:172
134491490,5ptp4l0-21swapper/309:29:543
134491490,12ptp4l0-21swapper/111:15:171
134491490,12ptp4l0-21swapper/111:15:171
9707994824,4cyclictest33-21ksoftirqd/207:28:032
9707994814,9cyclictest33-21ksoftirqd/209:00:132
134491480,4ptp4l0-21swapper/308:43:033
9707994733,7cyclictest33-21ksoftirqd/210:50:012
970799471,5cyclictest14727-21kworker/2:211:00:122
134491470,4ptp4l0-21swapper/308:07:453
134491470,4ptp4l0-21swapper/307:37:013
134491470,3ptp4l0-21swapper/311:20:573
134491470,3ptp4l0-21swapper/310:08:133
134491470,3ptp4l0-21swapper/308:13:523
970799465,2cyclictest33-21ksoftirqd/211:10:232
134491460,4ptp4l0-21swapper/309:24:443
134491460,12ptp4l0-21swapper/110:38:581
73542455,12sleep30-21swapper/307:05:123
134491450,7ptp4l0-21swapper/007:05:180
134491450,5ptp4l0-21swapper/009:50:130
134491450,5ptp4l0-21swapper/007:35:220
134491450,4ptp4l0-21swapper/311:59:203
134491450,3ptp4l0-21swapper/310:22:393
9707994435,2cyclictest33-21ksoftirqd/212:00:172
970799443,2cyclictest33-21ksoftirqd/208:06:192
134491440,3ptp4l0-21swapper/310:00:123
134491440,3ptp4l0-21swapper/308:28:153
134491440,2ptp4l121rcu_preempt10:27:413
134491430,9ptp4l0-21swapper/008:06:340
134491430,5ptp4l0-21swapper/311:00:093
134491430,5ptp4l0-21swapper/012:35:300
134491430,5ptp4l0-21swapper/012:05:110
134491430,5ptp4l0-21swapper/009:05:130
134491430,5ptp4l0-21swapper/008:20:030
134491430,4ptp4l21902-21users12:10:283
134491430,4ptp4l0-21swapper/312:37:483
134491430,3ptp4l101ktimersoftd/007:58:350
134491420,5ptp4l24888-21hddtemp_smartct11:10:170
134491420,5ptp4l24660-21iostat_ios10:00:170
134491420,5ptp4l0-21swapper/311:45:263
134491420,5ptp4l0-21swapper/011:55:290
134491420,5ptp4l0-21swapper/011:30:200
134491420,5ptp4l0-21swapper/010:40:150
134491420,4ptp4l9672-21apt-get08:20:021
134491420,4ptp4l6239-21memory08:10:201
134491420,4ptp4l3431-21apt-get11:35:023
134491420,4ptp4l28316-21ntp_states12:25:240
134491420,4ptp4l24843-21apt-get12:20:120
134491420,4ptp4l24196-21users12:15:290
134491420,4ptp4l22579-21meminfo08:45:210
134491420,4ptp4l17597-21meminfo07:25:201
134491420,4ptp4l15141-21perl08:30:163
134491420,4ptp4l10687-21meminfo07:10:203
134491420,4ptp4l0-21swapper/311:30:103
134491420,4ptp4l0-21swapper/007:10:000
134491420,3ptp4l26074-21apt-get07:45:121
134491420,3ptp4l23733-21ls11:05:281
134491420,3ptp4l18150-21ls07:25:270
134491410,9ptp4l25-21ksoftirqd/108:56:131
134491410,5ptp4l27266-21/usr/sbin/munin07:45:240
134491410,5ptp4l0-21swapper/307:25:173
134491410,5ptp4l0-21swapper/010:45:250
134491410,5ptp4l0-21swapper/009:33:390
134491410,5ptp4l0-21swapper/009:20:160
134491410,5ptp4l0-21swapper/008:25:160
134491410,4ptp4l0-21swapper/309:35:233
134491410,4ptp4l0-21swapper/307:51:423
134491410,4ptp4l0-21swapper/108:30:151
134491410,4ptp4l0-21swapper/107:35:141
134491410,4ptp4l0-21swapper/011:45:230
134491410,4ptp4l0-21swapper/011:40:140
134491410,4ptp4l0-21swapper/010:25:570
134491410,4ptp4l0-21swapper/009:45:130
134491410,4ptp4l0-21swapper/008:44:370
134491410,4ptp4l0-21swapper/008:30:590
134491410,3ptp4l6207-21apt-get11:40:133
134491410,3ptp4l10440-21apt-get10:40:113
134491400,5ptp4l30848-21/usr/sbin/munin12:30:270
134491400,5ptp4l0-21swapper/112:10:231
134491400,5ptp4l0-21swapper/110:00:161
134491400,5ptp4l0-21swapper/109:00:251
134491400,4ptp4l9-21ksoftirqd/007:15:240
134491400,4ptp4l9-21ksoftirqd/007:15:240
134491400,4ptp4l0-21swapper/311:15:143
134491400,4ptp4l0-21swapper/311:15:143
134491400,4ptp4l0-21swapper/311:05:233
134491400,4ptp4l0-21swapper/310:15:223
134491400,4ptp4l0-21swapper/307:55:193
134491400,4ptp4l0-21swapper/307:45:223
134491400,4ptp4l0-21swapper/112:05:111
134491400,4ptp4l0-21swapper/108:51:341
134491400,4ptp4l0-21swapper/012:12:380
134491400,4ptp4l0-21swapper/011:20:260
134491400,4ptp4l0-21swapper/010:52:260
134491400,4ptp4l0-21swapper/010:35:310
134491400,4ptp4l0-21swapper/010:07:470
134491400,4ptp4l0-21swapper/009:27:340
134491400,4ptp4l0-21swapper/008:00:530
134491400,3ptp4l8427-21diskstats10:35:163
134491400,3ptp4l2131-21memory10:20:210
134491400,3ptp4l15300-21meminfo07:20:203
134491400,3ptp4l14968-21/usr/sbin/munin09:40:130
134491400,3ptp4l0-21swapper/107:30:261
9706993932,4cyclictest25-21ksoftirqd/110:30:001
134491390,5ptp4l0-21swapper/008:11:230
134491390,4ptp4l32495-21grep09:05:273
134491390,4ptp4l24367-21hwlatdetect08:50:170
134491390,4ptp4l0-21swapper/312:23:223
134491390,4ptp4l0-21swapper/309:55:263
134491390,4ptp4l0-21swapper/309:44:323
134491390,4ptp4l0-21swapper/111:52:221
134491390,4ptp4l0-21swapper/111:24:071
134491390,4ptp4l0-21swapper/110:50:411
134491390,4ptp4l0-21swapper/110:45:061
134491390,4ptp4l0-21swapper/110:20:221
134491390,4ptp4l0-21swapper/109:55:241
134491390,4ptp4l0-21swapper/109:40:281
134491390,4ptp4l0-21swapper/109:33:491
134491390,4ptp4l0-21swapper/109:20:251
134491390,4ptp4l0-21swapper/109:15:231
134491390,4ptp4l0-21swapper/109:06:511
134491390,4ptp4l0-21swapper/108:41:041
134491390,4ptp4l0-21swapper/012:01:110
134491390,4ptp4l0-21swapper/011:51:220
134491390,4ptp4l0-21swapper/011:06:500
134491390,4ptp4l0-21swapper/011:04:290
134491390,4ptp4l0-21swapper/010:55:220
134491390,4ptp4l0-21swapper/009:55:450
134491390,4ptp4l0-21swapper/009:19:070
134491390,4ptp4l0-21swapper/009:11:510
134491390,4ptp4l0-21swapper/009:02:060
134491390,4ptp4l0-21swapper/008:35:510
134491390,4ptp4l0-21swapper/008:15:210
134491390,4ptp4l0-21swapper/007:40:060
134491390,4ptp4l0-21swapper/007:20:420
134491390,2ptp4l18058-21strings08:35:233
134491390,12ptp4l0-21swapper/110:17:481
134491380,5ptp4l25191-21cut12:20:141
134491380,5ptp4l0-21swapper/009:38:520
134491380,4ptp4l0-21swapper/311:25:203
134491380,4ptp4l0-21swapper/112:37:441
134491380,4ptp4l0-21swapper/112:34:221
134491380,4ptp4l0-21swapper/112:15:171
134491380,4ptp4l0-21swapper/111:55:051
134491380,4ptp4l0-21swapper/111:02:241
134491380,4ptp4l0-21swapper/109:28:011
134491380,4ptp4l0-21swapper/107:15:141
134491380,4ptp4l0-21swapper/107:15:141
134491380,4ptp4l0-21swapper/007:32:040
134491380,3ptp4l0-21swapper/111:41:051
134491380,3ptp4l0-21swapper/111:36:301
134491380,3ptp4l0-21swapper/111:30:531
134491380,3ptp4l0-21swapper/109:52:131
134491380,3ptp4l0-21swapper/109:13:461
134491380,3ptp4l0-21swapper/108:05:231
134491380,3ptp4l0-21swapper/010:10:240
9706993713,22cyclictest25939-21kworker/1:211:47:091
134491370,5ptp4l0-21swapper/109:35:191
134491370,3ptp4l0-21swapper/112:03:041
134491370,3ptp4l0-21swapper/111:26:181
134491370,3ptp4l0-21swapper/110:12:371
134491370,3ptp4l0-21swapper/108:15:581
134491370,3ptp4l0-21swapper/107:50:151
134491370,3ptp4l0-21swapper/107:23:061
134491360,4ptp4l0-21swapper/110:55:221
134491360,4ptp4l0-21swapper/108:00:121
134491360,4ptp4l0-21swapper/107:57:441
134491360,3ptp4l0-21swapper/112:25:231
134491360,3ptp4l0-21swapper/109:45:311
9706993428,4cyclictest25-21ksoftirqd/108:39:161
9706993415,17cyclictest23655-21cpuspeed_turbos07:40:151
134491320,3ptp4l0-21swapper/110:42:311
970699293,3cyclictest0-21swapper/107:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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