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2026-06-11 - 22:18
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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 376 highest latencies:
System rackdslot3.osadl.org (updated Thu Jun 11, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44942227163,22sleep00-21swapper/007:08:430
43462216152,21sleep10-21swapper/107:06:461
139491204169,23phc2sys0-21swapper/307:09:263
44042202168,22sleep20-21swapper/207:07:332
1619121190,2sleep00-21swapper/009:45:230
1394918561,15phc2sys0-21swapper/307:10:013
4894996428,7cyclictest9-21ksoftirqd/011:20:000
4894996428,7cyclictest9-21ksoftirqd/011:20:000
139391640,1ptp4l391rcuc/308:25:253
4894996226,7cyclictest9-21ksoftirqd/009:55:010
4894996225,8cyclictest9-21ksoftirqd/010:45:010
101192620,2sleep10-21swapper/109:35:131
489799614,17cyclictest19670-21unixbench_singl08:45:263
4894996127,6cyclictest9-21ksoftirqd/011:40:200
4894995924,6cyclictest9-21ksoftirqd/011:15:000
4894995923,5cyclictest9-21ksoftirqd/007:50:010
4894995923,5cyclictest9-21ksoftirqd/007:50:000
4894995921,6cyclictest9-21ksoftirqd/009:25:000
139391590,1ptp4l391rcuc/307:35:103
489799582,11cyclictest139491phc2sys11:55:173
4894995828,7cyclictest9-21ksoftirqd/010:30:240
4894995824,5cyclictest9-21ksoftirqd/007:50:140
4894995823,6cyclictest9-21ksoftirqd/011:05:240
4894995821,8cyclictest9-21ksoftirqd/008:04:590
139391580,1ptp4l391rcuc/309:25:273
489799575,10cyclictest9663-21/usr/sbin/munin07:20:233
4894995725,6cyclictest9-21ksoftirqd/011:50:260
4894995723,6cyclictest9-21ksoftirqd/010:55:180
4894995723,5cyclictest9-21ksoftirqd/008:45:000
4894995722,6cyclictest9-21ksoftirqd/010:15:180
4894995722,6cyclictest9-21ksoftirqd/008:25:170
4894995722,6cyclictest9-21ksoftirqd/007:40:010
489799565,12cyclictest21884-21irqrtprio11:05:193
489799563,10cyclictest17791-21date08:45:013
4894995625,4cyclictest9-21ksoftirqd/009:25:130
4894995624,7cyclictest9-21ksoftirqd/010:25:310
4894995624,6cyclictest9-21ksoftirqd/012:40:000
4894995624,6cyclictest9-21ksoftirqd/008:45:120
4894995624,5cyclictest9-21ksoftirqd/007:25:220
4894995622,6cyclictest9-21ksoftirqd/009:15:130
4894995621,6cyclictest9-21ksoftirqd/012:30:210
4894995617,5cyclictest9-21ksoftirqd/012:15:000
4894995616,7cyclictest9-21ksoftirqd/009:35:250
489799554,11cyclictest27257-21df_abs10:10:143
4894995526,7cyclictest9-21ksoftirqd/011:50:000
4894995523,5cyclictest9-21ksoftirqd/010:05:180
4894995522,6cyclictest9-21ksoftirqd/008:35:140
4894995521,6cyclictest9-21ksoftirqd/011:00:260
4894995520,6cyclictest9-21ksoftirqd/012:20:260
4894995520,5cyclictest9-21ksoftirqd/008:05:250
4894995518,5cyclictest9-21ksoftirqd/007:30:180
489799542,10cyclictest18243-21irqrtprio12:05:183
4894995425,4cyclictest9-21ksoftirqd/008:30:260
4894995424,5cyclictest9-21ksoftirqd/011:20:130
4894995424,5cyclictest9-21ksoftirqd/011:20:130
4894995423,5cyclictest9-21ksoftirqd/012:00:270
4894995420,6cyclictest9-21ksoftirqd/011:35:130
4894995420,6cyclictest9-21ksoftirqd/008:55:240
4894995420,6cyclictest9-21ksoftirqd/008:20:250
4894995420,6cyclictest9-21ksoftirqd/008:20:250
4894995420,5cyclictest9-21ksoftirqd/012:25:230
4894995419,5cyclictest9-21ksoftirqd/008:55:010
489799532,11cyclictest9997-21latency10:40:213
489799532,11cyclictest12422-21df_abs07:25:133
4894995321,6cyclictest9-21ksoftirqd/007:15:180
4894995321,4cyclictest9-21ksoftirqd/010:50:220
4894995320,5cyclictest9-21ksoftirqd/007:20:190
4894995319,5cyclictest9-21ksoftirqd/010:20:120
4894995315,6cyclictest9-21ksoftirqd/009:30:150
42002530,2sleep20-21swapper/211:35:212
489799524,10cyclictest15892-21sed07:30:243
4894995221,6cyclictest9-21ksoftirqd/010:45:120
4894995221,5cyclictest9-21ksoftirqd/009:55:150
4894995221,5cyclictest9-21ksoftirqd/007:55:220
4894995221,4cyclictest9-21ksoftirqd/008:10:210
4894995220,6cyclictest9-21ksoftirqd/011:30:130
4894995220,3cyclictest9-21ksoftirqd/012:15:190
4894995219,5cyclictest9-21ksoftirqd/008:15:190
4894995218,6cyclictest9-21ksoftirqd/010:35:140
4894995217,5cyclictest9-21ksoftirqd/011:25:120
489799512,11cyclictest29173-21expr08:00:143
4894995119,3cyclictest9-21ksoftirqd/010:05:010
4894995115,8cyclictest9-21ksoftirqd/010:10:150
4894995019,4cyclictest9-21ksoftirqd/009:05:140
4894995018,6cyclictest9-21ksoftirqd/007:15:010
4894995015,7cyclictest9-21ksoftirqd/009:40:130
4894995013,5cyclictest9-21ksoftirqd/011:55:110
219782500,6sleep2489699cyclictest08:50:262
489799494,10cyclictest28285-21df_abs09:05:153
4894994918,8cyclictest9-21ksoftirqd/009:10:120
489799481,11cyclictest31670-21latency_hist12:35:003
489699483,5cyclictest33-21ksoftirqd/207:55:182
4894994815,5cyclictest9-21ksoftirqd/009:00:200
489799474,10cyclictest20767-21expr08:50:133
489799464,9cyclictest7553-21expr07:15:143
489799462,17cyclictest31930-21unixbench_multi09:10:263
489799461,15cyclictest29246-21/usr/sbin/munin10:15:133
489799454,18cyclictest15964-21irqrtprio12:00:193
489799451,8cyclictest18598-21apt-config11:00:003
489799450,11cyclictest0-21swapper/310:05:273
139391450,0ptp4l401ktimersoftd/307:45:463
139391450,0ptp4l401ktimersoftd/307:45:453
489799443,8cyclictest16661-21perl10:55:163
489799441,8cyclictest11596-21ls09:35:273
489499433,3cyclictest9-21ksoftirqd/012:05:130
489499433,2cyclictest9-21ksoftirqd/007:40:250
139391430,1ptp4l391rcuc/309:50:013
4896994237,3cyclictest33-21ksoftirqd/208:50:002
4896994231,9cyclictest321ktimersoftd/207:40:202
4896994229,2cyclictest33-21ksoftirqd/209:40:002
489599422,37cyclictest17755-21fschecks_count09:50:151
139391420,0ptp4l401ktimersoftd/311:49:153
489799412,8cyclictest27667-21users11:15:283
489799412,8cyclictest27667-21users11:15:273
489799412,8cyclictest25751-21memory12:20:213
489799412,7cyclictest26574-21meminfo09:00:203
489799412,7cyclictest1763-21perl08:10:143
139391400,0ptp4l401ktimersoftd/310:02:043
489799394,4cyclictest0-21swapper/310:45:123
489799392,7cyclictest8678-21memory09:30:193
489799392,7cyclictest32685-21memory10:20:203
4896993935,3cyclictest33-21ksoftirqd/210:00:002
4896993934,3cyclictest33-21ksoftirqd/211:55:012
4896993927,10cyclictest33-21ksoftirqd/210:30:162
4895993934,3cyclictest25-21ksoftirqd/108:00:011
4896993833,3cyclictest33-21ksoftirqd/207:15:182
4896993832,3cyclictest33-21ksoftirqd/209:50:012
489699380,4cyclictest33-21ksoftirqd/208:25:122
4895993833,3cyclictest25-21ksoftirqd/108:30:121
4895993832,4cyclictest25-21ksoftirqd/107:37:391
4896993733,2cyclictest33-21ksoftirqd/210:45:182
4896993732,3cyclictest33-21ksoftirqd/211:35:002
4896993732,3cyclictest33-21ksoftirqd/211:05:142
4896993732,3cyclictest33-21ksoftirqd/211:00:002
4896993732,3cyclictest33-21ksoftirqd/209:30:002
4896993732,3cyclictest33-21ksoftirqd/208:40:002
4896993726,9cyclictest33-21ksoftirqd/212:25:192
4896993725,10cyclictest33-21ksoftirqd/210:15:132
4896993723,4cyclictest33-21ksoftirqd/212:15:182
4897993631,3cyclictest41-21ksoftirqd/310:35:003
4897993630,4cyclictest41-21ksoftirqd/311:20:543
4897993630,4cyclictest41-21ksoftirqd/311:20:543
4896993632,2cyclictest33-21ksoftirqd/209:20:182
4896993632,2cyclictest33-21ksoftirqd/208:15:192
4896993631,3cyclictest33-21ksoftirqd/210:35:182
4896993631,3cyclictest33-21ksoftirqd/210:25:002
4896993631,3cyclictest33-21ksoftirqd/209:40:172
4896993631,3cyclictest33-21ksoftirqd/207:45:202
4896993631,3cyclictest33-21ksoftirqd/207:45:192
4896993630,4cyclictest33-21ksoftirqd/210:25:042
4896993630,4cyclictest33-21ksoftirqd/208:31:122
489699362,4cyclictest33-21ksoftirqd/207:25:002
4896993620,5cyclictest33-21ksoftirqd/209:30:162
4896993619,5cyclictest33-21ksoftirqd/211:20:182
4896993619,5cyclictest33-21ksoftirqd/211:20:182
4895993630,4cyclictest25-21ksoftirqd/111:28:021
4895993630,4cyclictest25-21ksoftirqd/111:20:401
4895993630,4cyclictest25-21ksoftirqd/111:20:401
4895993630,4cyclictest25-21ksoftirqd/110:37:431
4897993530,3cyclictest41-21ksoftirqd/308:33:213
489799351,17cyclictest27076-21/usr/sbin/munin12:25:253
489699356,2cyclictest33-21ksoftirqd/207:35:262
4896993531,3cyclictest33-21ksoftirqd/211:55:012
4896993531,2cyclictest33-21ksoftirqd/210:15:002
4896993531,2cyclictest33-21ksoftirqd/207:55:002
4896993530,3cyclictest33-21ksoftirqd/212:35:002
4896993530,3cyclictest33-21ksoftirqd/211:45:002
4896993530,3cyclictest33-21ksoftirqd/211:15:182
4896993530,3cyclictest33-21ksoftirqd/211:15:182
4896993530,3cyclictest33-21ksoftirqd/210:10:012
4896993530,3cyclictest33-21ksoftirqd/209:50:322
4896993530,3cyclictest33-21ksoftirqd/208:12:192
4896993530,3cyclictest33-21ksoftirqd/208:04:592
4896993529,4cyclictest33-21ksoftirqd/211:01:472
4896993529,4cyclictest33-21ksoftirqd/209:18:582
4896993528,5cyclictest33-21ksoftirqd/209:10:182
4895993530,3cyclictest25-21ksoftirqd/110:05:001
4895993529,4cyclictest25-21ksoftirqd/112:28:401
4895993529,4cyclictest25-21ksoftirqd/112:16:401
4895993529,4cyclictest25-21ksoftirqd/112:13:591
4895993529,4cyclictest25-21ksoftirqd/111:52:371
4895993529,4cyclictest25-21ksoftirqd/111:16:351
4895993529,4cyclictest25-21ksoftirqd/111:16:351
4895993529,4cyclictest25-21ksoftirqd/110:30:581
4895993529,4cyclictest25-21ksoftirqd/110:08:271
4895993529,4cyclictest25-21ksoftirqd/109:17:561
4895993529,4cyclictest25-21ksoftirqd/109:07:571
4895993529,4cyclictest25-21ksoftirqd/108:17:511
4895993529,4cyclictest25-21ksoftirqd/107:30:011
1394913528,3phc2sys41-21ksoftirqd/307:40:153
4897993429,3cyclictest41-21ksoftirqd/311:50:213
4897993428,4cyclictest41-21ksoftirqd/312:38:533
489699346,3cyclictest33-21ksoftirqd/208:05:252
489699345,9cyclictest33-21ksoftirqd/211:10:122
4896993430,2cyclictest33-21ksoftirqd/212:40:002
4896993430,2cyclictest33-21ksoftirqd/211:25:172
4896993430,2cyclictest33-21ksoftirqd/210:00:202
4896993429,3cyclictest33-21ksoftirqd/212:05:012
4896993429,3cyclictest33-21ksoftirqd/208:55:272
4896993428,4cyclictest33-21ksoftirqd/209:01:132
4896993428,4cyclictest33-21ksoftirqd/207:33:272
4895993429,3cyclictest25-21ksoftirqd/112:24:551
4895993429,3cyclictest25-21ksoftirqd/111:40:001
4895993428,4cyclictest25-21ksoftirqd/111:01:341
4895993428,4cyclictest25-21ksoftirqd/110:56:101
4895993428,4cyclictest25-21ksoftirqd/110:48:391
4895993428,4cyclictest25-21ksoftirqd/108:45:271
489799333,8cyclictest23735-21if_enp4s008:55:163
4897993330,2cyclictest41-21ksoftirqd/308:15:133
4897993328,3cyclictest41-21ksoftirqd/311:27:523
4897993327,3cyclictest41-21ksoftirqd/309:42:183
4897993326,4cyclictest41-21ksoftirqd/310:39:183
489699333,2cyclictest121rcu_preempt10:40:192
4896993329,2cyclictest33-21ksoftirqd/212:05:252
4896993328,3cyclictest33-21ksoftirqd/212:10:192
4896993328,3cyclictest33-21ksoftirqd/211:49:252
4896993328,3cyclictest33-21ksoftirqd/207:10:182
4895993329,3cyclictest25-21ksoftirqd/108:30:001
4895993328,3cyclictest25-21ksoftirqd/108:22:431
4895993328,3cyclictest25-21ksoftirqd/108:22:431
4895993328,3cyclictest25-21ksoftirqd/108:10:001
4895993327,4cyclictest25-21ksoftirqd/112:09:501
4895993327,4cyclictest25-21ksoftirqd/110:40:321
4895993327,4cyclictest25-21ksoftirqd/109:21:421
4895993327,4cyclictest25-21ksoftirqd/109:14:151
4895993327,4cyclictest25-21ksoftirqd/107:50:121
4895993327,4cyclictest25-21ksoftirqd/107:49:431
4895993327,4cyclictest25-21ksoftirqd/107:49:431
4897993229,2cyclictest41-21ksoftirqd/312:10:253
4897993227,3cyclictest41-21ksoftirqd/311:39:153
4897993226,4cyclictest41-21ksoftirqd/309:57:143
4897993226,4cyclictest41-21ksoftirqd/308:09:103
4897993226,3cyclictest41-21ksoftirqd/311:33:543
4897993226,3cyclictest41-21ksoftirqd/307:51:223
4897993225,4cyclictest41-21ksoftirqd/309:45:583
489699325,2cyclictest121rcu_preempt08:40:242
489699324,2cyclictest121rcu_preempt09:05:212
4896993228,3cyclictest33-21ksoftirqd/208:20:152
4896993228,3cyclictest33-21ksoftirqd/208:20:152
4895993227,3cyclictest25-21ksoftirqd/110:10:111
4895993227,3cyclictest25-21ksoftirqd/108:35:201
4895993227,3cyclictest25-21ksoftirqd/107:20:011
4895993226,4cyclictest25-21ksoftirqd/110:16:331
4897993126,3cyclictest41-21ksoftirqd/309:16:053
489699313,3cyclictest121rcu_preempt12:20:132
4896993127,2cyclictest33-21ksoftirqd/207:25:162
4896993126,3cyclictest33-21ksoftirqd/210:55:002
4895993126,3cyclictest25-21ksoftirqd/112:03:321
4895993125,4cyclictest25-21ksoftirqd/110:29:211
4895993125,4cyclictest25-21ksoftirqd/109:47:131
4895993125,4cyclictest25-21ksoftirqd/109:25:191
4895993125,4cyclictest25-21ksoftirqd/108:10:571
4895993125,4cyclictest25-21ksoftirqd/107:42:491
139391310,0ptp4l401ktimersoftd/308:38:213
489799304,15cyclictest4893-21cyclictest11:40:213
4897993025,3cyclictest41-21ksoftirqd/310:50:023
4897993025,3cyclictest41-21ksoftirqd/308:20:113
4897993025,3cyclictest41-21ksoftirqd/308:20:113
4897993024,4cyclictest41-21ksoftirqd/312:16:503
4895993025,3cyclictest25-21ksoftirqd/111:43:581
4895993025,3cyclictest25-21ksoftirqd/110:52:241
4895993025,3cyclictest25-21ksoftirqd/109:42:591
4895993025,3cyclictest25-21ksoftirqd/108:55:001
4895993025,3cyclictest25-21ksoftirqd/108:05:001
4895993024,4cyclictest25-21ksoftirqd/111:47:361
4895993024,4cyclictest25-21ksoftirqd/109:01:521
4895993024,4cyclictest25-21ksoftirqd/107:33:231
4897992923,4cyclictest41-21ksoftirqd/310:27:473
4895992924,3cyclictest25-21ksoftirqd/108:55:121
4895992924,3cyclictest25-21ksoftirqd/107:20:231
4895992923,4cyclictest25-21ksoftirqd/112:32:371
4895992923,4cyclictest25-21ksoftirqd/110:20:151
4895992923,4cyclictest25-21ksoftirqd/109:56:191
4895992923,3cyclictest25-21ksoftirqd/109:33:031
489799285,10cyclictest28801-21cat08:00:013
4897992823,3cyclictest41-21ksoftirqd/311:10:033
4895992823,3cyclictest25-21ksoftirqd/112:00:011
4895992823,3cyclictest25-21ksoftirqd/108:40:201
4895992822,3cyclictest25-21ksoftirqd/111:07:351
4895992722,3cyclictest25-21ksoftirqd/111:12:251
4895992722,3cyclictest25-21ksoftirqd/107:10:191
489799264,9cyclictest3785-21sed09:20:213
4895992519,4cyclictest25-21ksoftirqd/112:35:101
4895992419,3cyclictest25-21ksoftirqd/111:30:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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