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2026-01-02 - 21:12
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Fri Jan 02, 2026 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
694021620,7sleep23096799cyclictest08:35:152
216922670,3sleep10-21swapper/109:05:221
134491570,3ptp4l0-21swapper/310:30:283
134491560,12ptp4l29524-21memory07:05:200
134491550,3ptp4l0-21swapper/208:34:362
134491540,12ptp4l0-21swapper/209:44:492
134491530,4ptp4l0-21swapper/312:12:503
134491530,4ptp4l0-21swapper/209:24:422
134491530,4ptp4l0-21swapper/207:28:562
134491530,4ptp4l0-21swapper/007:45:200
134491530,3ptp4l0-21swapper/208:24:042
134491530,10ptp4l321ktimersoftd/208:45:252
3096599528,4cyclictest9-21ksoftirqd/011:05:380
134491520,4ptp4l0-21swapper/309:50:153
134491520,3ptp4l19618-21apt-get07:55:110
3096699514,4cyclictest25-21ksoftirqd/107:37:261
3096599516,5cyclictest9-21ksoftirqd/012:36:490
134491510,5ptp4l0-21swapper/207:09:272
134491510,4ptp4l0-21swapper/310:48:263
134491510,4ptp4l0-21swapper/309:42:183
134491510,4ptp4l0-21swapper/309:27:533
134491510,4ptp4l0-21swapper/111:23:231
134491510,3ptp4l0-21swapper/310:15:143
134491510,3ptp4l0-21swapper/307:20:143
134491510,3ptp4l0-21swapper/210:24:142
3096699502,4cyclictest25-21ksoftirqd/107:29:281
134491500,9ptp4l0-21swapper/307:35:173
134491500,5ptp4l0-21swapper/307:09:003
134491500,5ptp4l0-21swapper/107:06:481
134491500,4ptp4l0-21swapper/212:23:062
134491500,4ptp4l0-21swapper/209:45:202
134491500,4ptp4l0-21swapper/209:45:192
134491500,3ptp4l0-21swapper/309:55:263
134491500,13ptp4l0-21swapper/307:50:273
134491500,12ptp4l0-21swapper/311:58:513
134491500,10ptp4l0-21swapper/311:10:123
3096699492,5cyclictest25-21ksoftirqd/110:35:091
134491490,5ptp4l0-21swapper/209:37:142
134491490,4ptp4l3096799cyclictest09:00:202
134491490,4ptp4l0-21swapper/308:52:063
134491490,4ptp4l0-21swapper/207:31:132
134491490,4ptp4l0-21swapper/110:03:141
134491490,3ptp4l0-21swapper/008:17:060
134491490,10ptp4l0-21swapper/308:18:363
134491480,4ptp4l0-21swapper/312:15:253
134491480,4ptp4l0-21swapper/312:09:013
134491480,4ptp4l0-21swapper/309:34:453
134491480,4ptp4l0-21swapper/307:13:343
134491480,4ptp4l0-21swapper/210:43:522
134491480,3ptp4l0-21swapper/310:59:063
134491480,3ptp4l0-21swapper/212:10:442
134491480,12ptp4l0-21swapper/311:15:313
46198470,14rtkit-daemon134491ptp4l08:51:082
134491470,5ptp4l0-21swapper/010:50:180
134491470,4ptp4l0-21swapper/312:03:463
134491470,4ptp4l0-21swapper/311:44:363
134491470,4ptp4l0-21swapper/311:25:513
134491470,4ptp4l0-21swapper/207:46:202
134491470,3ptp4l3096799cyclictest11:19:552
134491470,3ptp4l0-21swapper/307:26:103
134491470,3ptp4l0-21swapper/210:53:202
3096699466,9cyclictest25-21ksoftirqd/110:25:161
3096599469,3cyclictest121rcu_preempt07:35:340
3096599466,3cyclictest9-21ksoftirqd/011:31:460
3096599466,3cyclictest9-21ksoftirqd/011:31:450
3096599466,3cyclictest9-21ksoftirqd/009:34:480
30965994641,3cyclictest9-21ksoftirqd/008:04:390
134491460,5ptp4l0-21swapper/311:20:223
134491460,4ptp4l0-21swapper/309:37:433
134491460,4ptp4l0-21swapper/308:28:403
134491460,3ptp4l0-21swapper/211:21:012
134491460,2ptp4l121rcu_preempt12:15:262
3096699454,4cyclictest25-21ksoftirqd/111:20:001
134491450,4ptp4l0-21swapper/309:00:153
134491450,3ptp4l0-21swapper/310:41:013
134491450,3ptp4l0-21swapper/309:45:103
134491450,3ptp4l0-21swapper/309:45:103
134491450,3ptp4l0-21swapper/210:48:042
134491450,3ptp4l0-21swapper/207:59:382
30965994427,4cyclictest9-21ksoftirqd/009:10:280
30965994427,4cyclictest9-21ksoftirqd/009:10:270
134491440,9ptp4l0-21swapper/011:50:520
134491440,4ptp4l0-21swapper/308:03:493
134491440,3ptp4l0-21swapper/308:11:223
134491440,3ptp4l0-21swapper/208:43:252
134491440,10ptp4l0-21swapper/209:15:262
46198430,4rtkit-daemon0-21swapper/211:33:082
46198430,4rtkit-daemon0-21swapper/211:33:082
3096699433,7cyclictest25-21ksoftirqd/110:44:041
3096699433,4cyclictest121rcu_preempt08:21:521
3096699431,8cyclictest25-21ksoftirqd/109:15:061
3096599431,9cyclictest9-21ksoftirqd/008:25:240
134491430,9ptp4l0-21swapper/007:19:200
134491430,8ptp4l0-21swapper/310:20:133
134491430,5ptp4l0-21swapper/012:30:290
134491430,4ptp4l13815-21apt-get10:00:102
134491430,4ptp4l0-21swapper/308:09:083
134491430,4ptp4l0-21swapper/307:45:283
134491430,4ptp4l0-21swapper/012:21:350
30967994228,4cyclictest33-21ksoftirqd/212:05:182
30967994223,17cyclictest33-21ksoftirqd/209:30:002
3096699424,8cyclictest25-21ksoftirqd/110:55:241
30966994237,3cyclictest25-21ksoftirqd/107:25:001
30966994228,3cyclictest25-21ksoftirqd/108:35:171
30966994228,3cyclictest25-21ksoftirqd/107:10:281
30966994227,4cyclictest25-21ksoftirqd/112:10:271
30966994227,3cyclictest25-21ksoftirqd/112:20:141
30966994226,3cyclictest25-21ksoftirqd/111:40:241
3096699422,3cyclictest121rcu_preempt09:55:181
30965994227,3cyclictest9-21ksoftirqd/008:35:160
30965994226,4cyclictest9-21ksoftirqd/011:35:190
30965994218,2cyclictest134491ptp4l12:27:080
30965994215,5cyclictest9-21ksoftirqd/007:51:410
134491420,9ptp4l0-21swapper/310:50:103
134491420,9ptp4l0-21swapper/008:34:510
134491420,5ptp4l3096899cyclictest11:50:133
134491420,4ptp4l7913-21ls10:55:202
134491420,4ptp4l6014-21hddtemp_smartct07:25:160
134491420,4ptp4l16687-21iostat10:05:180
134491420,4ptp4l15227-21meminfo12:20:213
134491420,4ptp4l0-21swapper/209:11:202
134491420,4ptp4l0-21swapper/209:11:192
134491420,4ptp4l0-21swapper/207:21:042
134491420,4ptp4l0-21swapper/009:50:250
134491420,4ptp4l0-21swapper/007:13:420
3096699415,7cyclictest25-21ksoftirqd/110:55:001
3096699412,8cyclictest25-21ksoftirqd/107:43:121
30966994127,3cyclictest25-21ksoftirqd/110:45:211
30966994126,4cyclictest25-21ksoftirqd/111:25:171
30966994126,3cyclictest25-21ksoftirqd/107:55:261
30966994125,4cyclictest25-21ksoftirqd/108:52:571
30966994124,4cyclictest25-21ksoftirqd/112:28:591
3096599415,3cyclictest121rcu_preempt10:40:250
30965994137,2cyclictest9-21ksoftirqd/007:25:000
30965994135,3cyclictest9-21ksoftirqd/008:40:120
30965994127,3cyclictest9-21ksoftirqd/008:05:180
30965994126,3cyclictest9-21ksoftirqd/009:45:240
30965994126,3cyclictest9-21ksoftirqd/009:45:230
3096599410,4cyclictest9-21ksoftirqd/010:30:170
134491410,4ptp4l8733-21apt-get09:50:012
134491410,4ptp4l32097-21apt-get09:30:122
134491410,4ptp4l28770-21ntp_states10:30:232
134491410,4ptp4l27641-21apt-get11:40:022
134491410,4ptp4l23062-21ntp_states08:00:222
134491410,4ptp4l0-21swapper/211:10:112
134491410,3ptp4l7892-21apt-get07:30:143
134491410,3ptp4l31134-21ntp_states10:35:230
134491410,3ptp4l18422-21apt-get10:10:122
134491410,3ptp4l15884-21apt-get08:55:142
134491410,3ptp4l12166-21hddtemp_smartct11:05:162
30966994035,3cyclictest25-21ksoftirqd/110:20:001
30966994035,3cyclictest25-21ksoftirqd/109:50:281
30966994026,3cyclictest25-21ksoftirqd/110:30:171
30966994026,3cyclictest25-21ksoftirqd/109:40:261
30966994025,4cyclictest25-21ksoftirqd/109:00:161
30966994024,4cyclictest25-21ksoftirqd/111:48:581
30966994024,4cyclictest25-21ksoftirqd/109:45:271
30966994024,4cyclictest25-21ksoftirqd/109:45:271
3096699402,3cyclictest121rcu_preempt11:55:291
134491400,5ptp4l0-21swapper/308:30:143
134491400,5ptp4l0-21swapper/211:50:212
134491400,5ptp4l0-21swapper/012:05:220
134491400,5ptp4l0-21swapper/009:07:220
134491400,4ptp4l9949-21apt-get07:35:012
134491400,4ptp4l8297-21meminfo12:05:191
134491400,4ptp4l5046-21apt-get12:00:132
134491400,4ptp4l30244-21ntp_states08:15:282
134491400,4ptp4l26468-21ntp_states10:25:212
134491400,4ptp4l19616-21memory11:20:210
134491400,4ptp4l19445-21iostat12:30:182
134491400,4ptp4l10332-21ntp_states11:00:213
134491400,4ptp4l0-21swapper/310:05:193
134491400,4ptp4l0-21swapper/308:55:143
134491400,4ptp4l0-21swapper/212:35:192
134491400,4ptp4l0-21swapper/212:29:432
134491400,4ptp4l0-21swapper/209:05:142
134491400,4ptp4l0-21swapper/207:50:542
134491400,4ptp4l0-21swapper/012:17:150
134491400,4ptp4l0-21swapper/012:10:020
134491400,4ptp4l0-21swapper/011:55:220
134491400,4ptp4l0-21swapper/011:29:450
134491400,4ptp4l0-21swapper/011:16:180
134491400,4ptp4l0-21swapper/011:11:140
134491400,4ptp4l0-21swapper/011:01:260
134491400,4ptp4l0-21swapper/010:57:500
134491400,4ptp4l0-21swapper/010:26:320
134491400,4ptp4l0-21swapper/010:02:200
134491400,4ptp4l0-21swapper/009:37:390
134491400,4ptp4l0-21swapper/009:15:250
134491400,4ptp4l0-21swapper/008:58:370
134491400,4ptp4l0-21swapper/008:45:300
134491400,4ptp4l0-21swapper/008:20:320
134491400,4ptp4l0-21swapper/007:42:580
134491400,4ptp4l0-21swapper/007:30:190
134491400,3ptp4l30455-21apt-get11:45:153
134491400,3ptp4l24549-21df_inode08:05:142
134491400,3ptp4l11494-21apt-get09:55:122
134491400,3ptp4l11273-21apt-get11:05:013
3096699396,4cyclictest25-21ksoftirqd/111:55:011
30966993935,2cyclictest25-21ksoftirqd/109:25:291
30966993934,3cyclictest25-21ksoftirqd/111:00:231
30966993933,3cyclictest25-21ksoftirqd/112:05:011
30966993925,4cyclictest25-21ksoftirqd/112:35:261
30966993925,4cyclictest25-21ksoftirqd/108:40:241
30966993925,3cyclictest25-21ksoftirqd/110:05:291
30966993925,3cyclictest25-21ksoftirqd/108:25:241
30966993925,3cyclictest25-21ksoftirqd/108:00:261
30966993924,4cyclictest25-21ksoftirqd/107:50:181
30966993924,3cyclictest25-21ksoftirqd/109:20:211
30965993936,2cyclictest9-21ksoftirqd/011:40:200
30965993935,2cyclictest9-21ksoftirqd/010:45:140
3096599393,3cyclictest121rcu_preempt09:40:140
30965993924,3cyclictest9-21ksoftirqd/008:13:580
30965993923,3cyclictest9-21ksoftirqd/010:20:260
3096599391,3cyclictest121rcu_preempt10:10:250
3096599390,9cyclictest9-21ksoftirqd/011:45:160
134491390,5ptp4l0-21swapper/312:25:123
134491390,4ptp4l31460-21timerandwakeup10:35:282
134491390,4ptp4l25345-21apt-get10:25:103
134491390,4ptp4l0-21swapper/311:30:253
134491390,4ptp4l0-21swapper/311:30:253
134491390,4ptp4l0-21swapper/310:35:123
134491390,4ptp4l0-21swapper/310:11:043
134491390,4ptp4l0-21swapper/309:13:073
134491390,4ptp4l0-21swapper/309:13:073
134491390,4ptp4l0-21swapper/309:10:003
134491390,4ptp4l0-21swapper/308:35:183
134491390,4ptp4l0-21swapper/211:36:552
134491390,4ptp4l0-21swapper/208:27:402
134491390,4ptp4l0-21swapper/107:30:201
134491390,4ptp4l0-21swapper/107:19:041
134491390,4ptp4l0-21swapper/010:16:220
134491390,4ptp4l0-21swapper/009:55:420
134491390,4ptp4l0-21swapper/009:25:200
134491390,4ptp4l0-21swapper/009:20:460
134491390,3ptp4l9712-21meminfo08:40:203
134491390,3ptp4l15153-21ls08:50:290
134491390,3ptp4l0-21swapper/312:35:093
134491390,3ptp4l0-21swapper/310:00:213
134491390,3ptp4l0-21swapper/208:10:222
3096699389,3cyclictest25-21ksoftirqd/108:45:201
3096699385,3cyclictest25-21ksoftirqd/109:36:331
30966993832,3cyclictest25-21ksoftirqd/112:15:231
30966993825,3cyclictest25-21ksoftirqd/108:15:241
30966993824,4cyclictest25-21ksoftirqd/110:20:111
30966993824,3cyclictest25-21ksoftirqd/109:30:131
30966993823,3cyclictest25-21ksoftirqd/111:30:241
30966993823,3cyclictest25-21ksoftirqd/111:30:241
30966993823,3cyclictest25-21ksoftirqd/108:10:581
134491380,4ptp4l32446-21sed08:20:263
134491380,4ptp4l16536-21grep10:05:162
134491380,4ptp4l10475-21ps11:00:242
134491380,4ptp4l0-21swapper/312:30:223
134491380,4ptp4l0-21swapper/311:39:083
134491380,4ptp4l0-21swapper/309:15:143
134491380,4ptp4l0-21swapper/308:44:593
134491380,4ptp4l0-21swapper/307:40:143
134491380,4ptp4l0-21swapper/307:15:243
134491380,4ptp4l0-21swapper/211:45:312
134491380,4ptp4l0-21swapper/211:26:482
134491380,4ptp4l0-21swapper/210:17:262
134491380,4ptp4l0-21swapper/207:41:322
134491380,4ptp4l0-21swapper/207:10:062
134491380,4ptp4l0-21swapper/112:33:421
134491380,4ptp4l0-21swapper/111:09:131
134491380,4ptp4l0-21swapper/108:06:361
134491380,4ptp4l0-21swapper/012:00:210
134491380,4ptp4l0-21swapper/009:00:220
30966993733,3cyclictest25-21ksoftirqd/109:15:001
30966993733,3cyclictest25-21ksoftirqd/109:15:001
30966993732,3cyclictest25-21ksoftirqd/111:39:541
30966993721,4cyclictest25-21ksoftirqd/111:10:591
134491370,4ptp4l0-21swapper/211:58:522
134491370,4ptp4l0-21swapper/207:15:282
134491370,4ptp4l0-21swapper/107:45:221
134491370,3ptp4l0-21swapper/309:20:153
134491370,3ptp4l0-21swapper/307:55:563
134491360,3ptp4l0-21swapper/110:12:331
134491350,3ptp4l0-21swapper/108:30:121
3096699342,2cyclictest25-21ksoftirqd/108:55:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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