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2026-07-04 - 23:27
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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 Sat Jul 04, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
333421770,5sleep10-21swapper/107:05:201
134491670,3ptp4l0-21swapper/007:10:040
134491670,3ptp4l0-21swapper/007:10:040
134491620,4ptp4l13213-21memory10:55:220
134691610,2getstats0-21swapper/011:35:180
480899583,15cyclictest24973-21cat09:00:281
134491580,4ptp4l0-21swapper/209:48:422
134491580,4ptp4l0-21swapper/112:05:211
134491580,4ptp4l0-21swapper/011:19:250
134491580,3ptp4l0-21swapper/310:45:303
134491580,3ptp4l0-21swapper/309:28:013
134491580,3ptp4l0-21swapper/212:05:182
134491570,4ptp4l0-21swapper/312:20:313
134491570,4ptp4l0-21swapper/208:39:262
134491570,4ptp4l0-21swapper/107:25:241
134491570,3ptp4l0-21swapper/108:55:251
134491560,4ptp4l0-21swapper/212:23:192
134491560,4ptp4l0-21swapper/210:55:122
134491560,4ptp4l0-21swapper/210:54:402
134491560,3ptp4l0-21swapper/010:27:240
480899555,12cyclictest10594-21ls12:00:171
480899550,11cyclictest12525-21grep09:45:161
134491550,4ptp4l0-21swapper/208:09:012
134491550,4ptp4l0-21swapper/012:28:280
134491550,3ptp4l0-21swapper/112:15:151
134491550,3ptp4l0-21swapper/108:39:531
85412530,4sleep10-21swapper/107:15:271
480899530,11cyclictest7413-21awk08:25:131
134491530,4ptp4l0-21swapper/308:23:203
134491530,4ptp4l0-21swapper/208:46:532
134491530,4ptp4l0-21swapper/010:20:050
134491530,4ptp4l0-21swapper/009:11:400
134491530,4ptp4l0-21swapper/008:41:400
134491530,3ptp4l0-21swapper/007:25:220
134491530,2ptp4l0-21swapper/012:07:440
480899528,7cyclictest0-21swapper/112:35:141
480899527,10cyclictest0-21swapper/111:50:171
480899526,7cyclictest0-21swapper/109:35:111
480899521,12cyclictest15797-21sed08:40:271
480899521,10cyclictest0-21swapper/111:00:001
480899521,10cyclictest0-21swapper/111:00:001
134491520,6ptp4l0-21swapper/007:08:100
134491520,4ptp4l0-21swapper/312:14:243
134491520,4ptp4l0-21swapper/310:23:373
134491520,4ptp4l0-21swapper/309:30:503
134491520,4ptp4l0-21swapper/212:00:282
134491520,4ptp4l0-21swapper/011:25:540
134491520,4ptp4l0-21swapper/009:30:230
134491520,3ptp4l0-21swapper/308:05:163
134491520,3ptp4l0-21swapper/012:18:110
134491520,3ptp4l0-21swapper/011:10:190
480899516,6cyclictest30391-21latency_hist09:15:011
134491510,4ptp4l0-21swapper/307:28:063
134491500,4ptp4l0-21swapper/209:24:332
134491500,4ptp4l0-21swapper/010:53:220
134491500,4ptp4l0-21swapper/009:54:200
134491500,4ptp4l0-21swapper/007:56:090
134491490,5ptp4l33-21ksoftirqd/208:29:482
134491490,5ptp4l0-21swapper/010:03:130
134491490,4ptp4l0-21swapper/207:58:432
134491490,4ptp4l0-21swapper/012:31:080
134491490,4ptp4l0-21swapper/010:31:160
134491490,4ptp4l0-21swapper/009:00:120
134491490,4ptp4l0-21swapper/008:12:450
134491490,3ptp4l0-21swapper/009:41:170
480899487,8cyclictest0-21swapper/108:15:241
480899483,11cyclictest0-21swapper/111:20:381
134491480,4ptp4l0-21swapper/212:10:332
134491480,4ptp4l0-21swapper/009:15:230
134491480,4ptp4l0-21swapper/008:36:250
134491480,3ptp4l0-21swapper/011:20:370
134491480,3ptp4l0-21swapper/009:20:350
134491480,3ptp4l0-21swapper/007:35:170
134491470,6ptp4l33-21ksoftirqd/211:08:582
134491470,4ptp4l0-21swapper/312:32:233
134491470,4ptp4l0-21swapper/007:44:300
134491470,4ptp4l0-21swapper/007:33:160
134491470,3ptp4l0-21swapper/111:40:201
134491470,11ptp4l0-21swapper/207:15:202
480899468,6cyclictest0-21swapper/107:55:241
480899463,6cyclictest9749-21df_abs07:20:131
134491460,9ptp4l17826-21ntp_states09:55:223
134491460,7ptp4l0-21swapper/010:37:520
134491460,4ptp4l6301-21awk10:40:250
4810994534,9cyclictest33-21ksoftirqd/212:15:282
134491450,4ptp4l0-21swapper/312:05:313
134491450,4ptp4l0-21swapper/310:34:053
134491450,4ptp4l0-21swapper/307:36:273
134491450,4ptp4l0-21swapper/009:45:130
134491450,3ptp4l0-21swapper/208:20:592
134491450,3ptp4l0-21swapper/012:38:560
4810994439,3cyclictest33-21ksoftirqd/210:40:002
134491440,9ptp4l10024-21latency_hist12:00:003
134491440,9ptp4l0-21swapper/010:48:060
134491440,6ptp4l17521-21meminfo08:45:210
134491440,5ptp4l0-21swapper/308:15:123
134491440,4ptp4l23313-21apt-get07:50:112
134491440,4ptp4l0-21swapper/307:10:323
134491440,4ptp4l0-21swapper/307:10:323
134491440,3ptp4l7362-21apt-get08:25:133
134491440,3ptp4l0-21swapper/009:07:400
134491440,3ptp4l0-21swapper/009:07:400
134491440,2ptp4l22747-21runrttasks07:46:020
134491440,19ptp4l0-21swapper/309:52:553
134491440,12ptp4l0-21swapper/212:32:052
134491440,10ptp4l0-21swapper/210:45:142
134491440,10ptp4l0-21swapper/207:23:402
480899437,14cyclictest0-21swapper/109:40:351
480899434,4cyclictest134491ptp4l12:30:261
480899432,6cyclictest24186-21latency_hist12:29:591
480899432,5cyclictest0-21swapper/109:30:321
134491430,9ptp4l0-21swapper/211:30:492
134491430,9ptp4l0-21swapper/209:53:482
134491430,9ptp4l0-21swapper/208:14:242
134491430,9ptp4l0-21swapper/011:00:540
134491430,9ptp4l0-21swapper/011:00:540
134491430,5ptp4l0-21swapper/211:55:292
134491430,4ptp4l11816-21apt-get07:25:132
134491430,4ptp4l10980-21ls10:50:201
134491430,4ptp4l0-21swapper/208:02:392
134491430,4ptp4l0-21swapper/110:19:541
134491430,3ptp4l0-21swapper/008:57:240
134491430,10ptp4l0-21swapper/210:28:532
134491430,10ptp4l0-21swapper/207:49:242
480899422,8cyclictest21747-21perl10:05:161
480899422,5cyclictest0-21swapper/107:54:251
134491420,9ptp4l0-21swapper/211:39:022
134491420,9ptp4l0-21swapper/209:40:582
134491420,9ptp4l0-21swapper/209:15:592
134491420,4ptp4l28402-21perl08:00:163
134491420,4ptp4l16909-21chrt12:11:200
134491420,4ptp4l0-21swapper/209:25:122
134491420,4ptp4l0-21swapper/011:43:550
134491420,3ptp4l16709-21apt-get09:55:122
134491420,3ptp4l0-21swapper/010:09:430
134491420,10ptp4l0-21swapper/211:22:132
4810994136,3cyclictest33-21ksoftirqd/211:00:192
4810994136,3cyclictest33-21ksoftirqd/211:00:192
480899414,7cyclictest19330-21diskstats10:00:131
480899414,5cyclictest0-21swapper/111:38:191
480899413,8cyclictest881-21iostat09:20:181
480899412,5cyclictest0-21swapper/108:52:371
134691410,4getstats0-21swapper/310:35:193
134491410,9ptp4l0-21swapper/211:49:432
134491410,8ptp4l0-21swapper/210:16:422
134491410,6ptp4l0-21swapper/310:57:093
134491410,5ptp4l0-21swapper/207:35:202
134491410,5ptp4l0-21swapper/008:15:150
134491410,4ptp4l7500-21df_inode07:15:150
134491410,4ptp4l6467-21memory11:50:210
134491410,4ptp4l4373-21apt-get07:10:021
134491410,4ptp4l4373-21apt-get07:10:021
134491410,4ptp4l28287-21apt-get10:20:121
134491410,4ptp4l10429-21df_inode12:00:140
134491410,4ptp4l0-21swapper/312:01:453
134491410,4ptp4l0-21swapper/310:05:483
134491410,4ptp4l0-21swapper/308:10:343
134491410,4ptp4l0-21swapper/009:58:010
4810994035,3cyclictest33-21ksoftirqd/210:45:002
4810994017,5cyclictest33-21ksoftirqd/209:30:202
480899402,7cyclictest6090-21ls08:20:231
480899401,7cyclictest1306-21irqstats10:30:201
134491400,6ptp4l16182-21ls07:35:002
134491400,5ptp4l28896-21sed08:00:190
134491400,5ptp4l0-21swapper/311:45:193
134491400,5ptp4l0-21swapper/310:50:193
134491400,5ptp4l0-21swapper/210:10:162
134491400,5ptp4l0-21swapper/108:45:231
134491400,5ptp4l0-21swapper/012:20:280
134491400,4ptp4l28543-21iostat08:00:181
134491400,4ptp4l10229-21iostat08:30:182
134491400,4ptp4l0-21swapper/311:30:163
134491400,4ptp4l0-21swapper/309:35:253
134491400,4ptp4l0-21swapper/111:55:261
134491400,4ptp4l0-21swapper/109:55:231
134491400,4ptp4l0-21swapper/108:30:211
134491400,4ptp4l0-21swapper/008:29:230
134491400,3ptp4l5069-21apt-get08:20:130
134491400,3ptp4l315-21apt-get08:10:121
134491400,3ptp4l21164-21apt-get08:55:123
134491400,3ptp4l18867-21apt-get08:50:132
134491400,3ptp4l0-21swapper/011:06:160
4810993934,3cyclictest33-21ksoftirqd/209:10:002
4810993934,3cyclictest33-21ksoftirqd/209:10:002
480899394,8cyclictest30731-21diskstats09:15:141
480899394,5cyclictest0-21swapper/111:13:281
480899392,5cyclictest0-21swapper/112:20:151
134491390,5ptp4l0-21swapper/310:00:233
134491390,5ptp4l0-21swapper/309:40:123
134491390,5ptp4l0-21swapper/110:45:171
134491390,4ptp4l18397-21memory12:15:203
134491390,4ptp4l0-21swapper/309:05:173
134491390,4ptp4l0-21swapper/309:05:173
134491390,4ptp4l0-21swapper/308:48:133
134491390,4ptp4l0-21swapper/307:51:343
134491390,4ptp4l0-21swapper/307:43:053
134491390,4ptp4l0-21swapper/307:30:153
134491390,4ptp4l0-21swapper/211:51:492
134491390,4ptp4l0-21swapper/209:38:462
134491390,4ptp4l0-21swapper/209:01:112
134491390,4ptp4l0-21swapper/208:55:442
134491390,4ptp4l0-21swapper/207:13:282
134491390,4ptp4l0-21swapper/207:13:282
134491390,4ptp4l0-21swapper/111:15:191
134491390,4ptp4l0-21swapper/111:05:191
134491390,4ptp4l0-21swapper/110:55:211
134491390,4ptp4l0-21swapper/110:40:161
134491390,4ptp4l0-21swapper/011:32:560
134491390,4ptp4l0-21swapper/009:37:270
134491390,4ptp4l0-21swapper/008:50:150
134491390,4ptp4l0-21swapper/008:32:350
134491390,4ptp4l0-21swapper/008:09:110
134491390,4ptp4l0-21swapper/007:50:070
134491390,4ptp4l0-21swapper/007:21:520
134491390,3ptp4l23920-21df_inode10:10:141
134491390,3ptp4l21958-21ls07:45:203
134491390,3ptp4l19969-21meminfo10:00:182
134491390,3ptp4l0-21swapper/207:41:412
480899381,7cyclictest32156-21ls10:25:311
480899381,6cyclictest0-21swapper/111:31:491
134491380,5ptp4l0-21swapper/307:57:383
134491380,5ptp4l0-21swapper/110:35:141
134491380,4ptp4l481099cyclictest10:05:222
134491380,4ptp4l0-21swapper/311:35:243
134491380,4ptp4l0-21swapper/311:25:273
134491380,4ptp4l0-21swapper/311:05:073
134491380,4ptp4l0-21swapper/310:10:183
134491380,4ptp4l0-21swapper/309:49:073
134491380,4ptp4l0-21swapper/309:02:413
134491380,4ptp4l0-21swapper/308:40:113
134491380,4ptp4l0-21swapper/307:24:363
134491380,4ptp4l0-21swapper/212:36:392
134491380,4ptp4l0-21swapper/212:26:092
134491380,4ptp4l0-21swapper/211:40:582
134491380,4ptp4l0-21swapper/211:27:392
134491380,4ptp4l0-21swapper/211:18:292
134491380,4ptp4l0-21swapper/211:11:312
134491380,4ptp4l0-21swapper/210:33:052
134491380,4ptp4l0-21swapper/209:10:172
134491380,4ptp4l0-21swapper/208:40:232
134491380,4ptp4l0-21swapper/208:16:282
134491380,4ptp4l0-21swapper/112:14:271
134491380,4ptp4l0-21swapper/111:25:151
134491380,4ptp4l0-21swapper/109:25:031
134491380,4ptp4l0-21swapper/109:05:181
134491380,4ptp4l0-21swapper/109:05:181
134491380,4ptp4l0-21swapper/107:45:141
134491380,4ptp4l0-21swapper/107:35:111
134491380,4ptp4l0-21swapper/011:57:080
134491380,4ptp4l0-21swapper/011:48:400
134491380,4ptp4l0-21swapper/010:15:160
134491380,4ptp4l0-21swapper/010:10:150
134491380,3ptp4l3265-21iostat_ios09:25:170
134491380,3ptp4l0-21swapper/210:20:232
134491380,3ptp4l0-21swapper/109:50:111
134491380,2ptp4l30037-21apt-get08:05:021
134491370,4ptp4l0-21swapper/312:36:213
134491370,4ptp4l0-21swapper/312:28:223
134491370,4ptp4l0-21swapper/311:50:283
134491370,4ptp4l0-21swapper/311:18:303
134491370,4ptp4l0-21swapper/311:01:553
134491370,4ptp4l0-21swapper/311:01:553
134491370,4ptp4l0-21swapper/310:27:383
134491370,4ptp4l0-21swapper/309:21:153
134491370,4ptp4l0-21swapper/307:19:323
134491370,4ptp4l0-21swapper/111:45:141
134491370,4ptp4l0-21swapper/107:30:591
134491370,3ptp4l41-21ksoftirqd/309:15:253
134491370,3ptp4l18845-21sshd08:50:063
134491370,3ptp4l0-21swapper/310:44:543
134491360,4ptp4l0-21swapper/311:42:033
134491360,4ptp4l0-21swapper/311:11:533
134491360,4ptp4l0-21swapper/107:44:301
134491360,3ptp4l27794-21chrt10:17:103
134491360,3ptp4l0-21swapper/311:20:183
134491360,3ptp4l0-21swapper/309:10:203
134491360,3ptp4l0-21swapper/308:39:283
134491350,3ptp4l0-21swapper/308:30:013
31642204,9sleep30-21swapper/307:05:193
37432195,6sleep20-21swapper/207:05:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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