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2026-07-26 - 17:35
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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 Sun Jul 26, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285332740,3sleep02235599cyclictest12:00:140
170632650,6sleep12235699cyclictest08:05:281
134491630,3ptp4l13900-21iostat08:00:180
134491590,3ptp4l0-21swapper/108:34:391
134491580,4ptp4l13740-21cat12:35:271
134491580,4ptp4l0-21swapper/110:05:201
134491580,4ptp4l0-21swapper/010:09:250
134491580,3ptp4l0-21swapper/209:35:162
2235699571,3cyclictest134491ptp4l07:55:141
134491570,4ptp4l0-21swapper/212:20:332
134491570,4ptp4l0-21swapper/210:11:252
134491570,4ptp4l0-21swapper/208:55:212
134491570,3ptp4l0-21swapper/111:40:201
134491570,3ptp4l0-21swapper/107:25:141
134491560,4ptp4l0-21swapper/312:16:113
134491560,4ptp4l0-21swapper/108:18:461
134491560,4ptp4l0-21swapper/008:55:250
134491560,3ptp4l0-21swapper/109:20:191
134491560,3ptp4l0-21swapper/010:20:180
134491560,3ptp4l0-21swapper/008:45:200
134491550,4ptp4l0-21swapper/109:25:201
134491550,4ptp4l0-21swapper/009:30:150
134491550,3ptp4l24681-21apt-get07:15:120
134491550,3ptp4l0-21swapper/109:45:541
134491550,3ptp4l0-21swapper/010:50:260
134491550,3ptp4l0-21swapper/009:35:220
134491550,3ptp4l0-21swapper/009:10:240
91762540,5sleep30-21swapper/309:00:143
134491540,5ptp4l0-21swapper/107:06:311
134491540,4ptp4l0-21swapper/311:50:403
134491540,4ptp4l0-21swapper/209:16:362
134491540,4ptp4l0-21swapper/012:35:300
134491540,3ptp4l3280-21irqrtprio11:05:190
134491540,3ptp4l0-21swapper/007:30:260
113762540,3sleep30-21swapper/310:15:123
46198530,4rtkit-daemon0-21swapper/210:38:502
134491530,4ptp4l0-21swapper/311:06:453
134491530,4ptp4l0-21swapper/309:06:013
134491530,4ptp4l0-21swapper/011:47:590
134491530,4ptp4l0-21swapper/011:41:260
134491530,4ptp4l0-21swapper/009:07:390
134491530,3ptp4l0-21swapper/312:23:243
134491530,3ptp4l0-21swapper/107:39:461
134491530,3ptp4l0-21swapper/009:48:260
134491520,5ptp4l0-21swapper/007:10:120
134491520,4ptp4l0-21swapper/310:14:273
134491520,4ptp4l0-21swapper/009:19:230
134491520,4ptp4l0-21swapper/007:57:140
134491520,3ptp4l0-21swapper/212:01:132
134491520,3ptp4l0-21swapper/008:20:170
134491510,4ptp4l0-21swapper/308:39:043
134491510,3ptp4l0-21swapper/311:17:073
134491510,3ptp4l0-21swapper/311:17:073
134491510,10ptp4l20331-21diskstats07:05:160
134491500,5ptp4l41-21ksoftirqd/309:50:163
134491490,9ptp4l0-21swapper/210:59:382
134491490,9ptp4l0-21swapper/210:48:262
134491490,7ptp4l22106-21ls07:10:011
134491490,4ptp4l0-21swapper/010:00:110
134491490,4ptp4l0-21swapper/010:00:110
134491490,3ptp4l0-21swapper/308:12:393
134491490,3ptp4l0-21swapper/109:18:301
134491490,3ptp4l0-21swapper/007:38:430
134491480,4ptp4l0-21swapper/309:45:253
134491480,4ptp4l0-21swapper/307:23:043
134491480,4ptp4l0-21swapper/008:17:280
134491480,4ptp4l0-21swapper/008:10:200
134491480,3ptp4l11461-21runrttasks11:24:181
134491480,3ptp4l0-21swapper/307:18:183
134491480,3ptp4l0-21swapper/008:41:100
134491480,15ptp4l0-21swapper/007:42:380
134491470,4ptp4l0-21swapper/107:50:071
134491470,4ptp4l0-21swapper/007:25:360
134491470,11ptp4l0-21swapper/210:00:172
134491470,11ptp4l0-21swapper/210:00:172
134491460,4ptp4l0-21swapper/308:15:363
134491460,4ptp4l0-21swapper/111:47:191
134491460,4ptp4l0-21swapper/011:58:350
134491460,3ptp4l401ktimersoftd/309:57:153
134491460,3ptp4l0-21swapper/112:29:011
134491460,3ptp4l0-21swapper/109:53:531
134491460,12ptp4l0-21swapper/207:35:142
22358994536,5cyclictest41-21ksoftirqd/312:25:123
134491450,9ptp4l0-21swapper/207:34:442
134491450,5ptp4l0-21swapper/209:00:212
134491450,3ptp4l241ktimersoftd/112:30:151
134491450,3ptp4l0-21swapper/310:28:303
134491450,3ptp4l0-21swapper/110:29:151
134491450,3ptp4l0-21swapper/110:02:451
134491450,3ptp4l0-21swapper/110:02:451
134491450,3ptp4l0-21swapper/108:39:521
134491450,15ptp4l1317-21runrttasks08:29:480
134491450,15ptp4l1317-21runrttasks08:29:480
134491450,12ptp4l1799migration/008:34:510
22357994438,3cyclictest33-21ksoftirqd/212:40:012
134491440,9ptp4l0-21swapper/211:58:152
134491440,9ptp4l0-21swapper/211:06:062
134491440,9ptp4l0-21swapper/210:52:332
134491440,9ptp4l0-21swapper/209:30:422
134491440,4ptp4l16013-21apt-get10:25:172
134491440,4ptp4l0-21swapper/111:52:411
134491440,4ptp4l0-21swapper/007:51:540
134491440,3ptp4l0-21swapper/111:36:511
134491440,3ptp4l0-21swapper/109:33:271
134491440,3ptp4l0-21swapper/012:14:120
134491440,10ptp4l0-21swapper/212:06:472
134491440,10ptp4l0-21swapper/209:10:282
22357994338,3cyclictest33-21ksoftirqd/211:25:002
134691430,11getstats0-21swapper/107:42:111
134491430,9ptp4l0-21swapper/211:54:392
134491430,9ptp4l0-21swapper/211:46:202
134491430,9ptp4l0-21swapper/209:41:132
134491430,9ptp4l0-21swapper/209:25:502
134491430,9ptp4l0-21swapper/208:54:572
134491430,9ptp4l0-21swapper/207:22:082
134491430,4ptp4l7756-21apt-get12:25:132
134491430,4ptp4l6842-21apt-get08:55:161
134491430,4ptp4l27001-21apt-get07:20:131
134491430,3ptp4l32174-21apt-get09:50:120
134491430,3ptp4l0-21swapper/112:17:241
134491430,3ptp4l0-21swapper/112:12:061
134491430,3ptp4l0-21swapper/110:52:391
134491430,3ptp4l0-21swapper/110:21:011
134491430,3ptp4l0-21swapper/108:13:441
134491430,3ptp4l0-21swapper/010:56:260
134491430,10ptp4l0-21swapper/208:00:062
22357994234,3cyclictest1317-21runrttasks08:12:172
134491420,9ptp4l0-21swapper/212:10:412
134491420,9ptp4l0-21swapper/011:29:020
134491420,8ptp4l0-21swapper/211:37:362
134491420,8ptp4l0-21swapper/209:23:362
134491420,5ptp4l0-21swapper/307:25:173
134491420,4ptp4l8063-21diskstats12:25:160
134491420,4ptp4l31764-21apt-get08:40:121
134491420,4ptp4l26002-21apt-get11:55:121
134491420,3ptp4l30951-21ls08:35:270
134491420,3ptp4l22559-21apt-get08:20:121
22357994129,10cyclictest33-21ksoftirqd/212:30:282
134691410,10getstats0-21swapper/111:25:421
134691410,10getstats0-21swapper/110:10:021
134691410,10getstats0-21swapper/109:37:021
134491410,9ptp4l0-21swapper/207:13:112
134491410,8ptp4l0-21swapper/210:41:262
134491410,8ptp4l0-21swapper/208:45:582
134491410,8ptp4l0-21swapper/208:44:032
134491410,4ptp4l28119-21ntp_states07:20:240
134491410,4ptp4l2751-21iostat09:55:180
134491410,4ptp4l26444-21ls10:45:203
134491410,4ptp4l25166-21diskstats08:25:161
134491410,4ptp4l25166-21diskstats08:25:161
134491410,4ptp4l23491-21iostat_ios10:40:200
134491410,4ptp4l20971-21df_inode09:25:170
134491410,4ptp4l1776-21df_abs07:35:143
134491410,4ptp4l16753-21ntp_states08:05:240
134491410,4ptp4l1131-21memory11:00:220
134491410,4ptp4l0-21swapper/310:40:133
134491410,4ptp4l0-21swapper/308:30:563
134491410,4ptp4l0-21swapper/112:00:301
134491410,4ptp4l0-21swapper/109:40:161
134491410,4ptp4l0-21swapper/012:32:590
134491410,4ptp4l0-21swapper/012:17:370
134491410,4ptp4l0-21swapper/011:35:140
134491410,4ptp4l0-21swapper/008:51:200
134491410,3ptp4l7061-21irqstats07:45:181
134491410,3ptp4l5458-21apt-get12:20:111
134491410,3ptp4l3298-21ntp_states09:55:232
134491410,3ptp4l20599-21apt-get10:35:141
134491410,3ptp4l13754-21apt-get09:10:161
134491410,3ptp4l0-21swapper/112:08:591
134491410,3ptp4l0-21swapper/011:24:140
2235799403,8cyclictest33-21ksoftirqd/209:05:112
22357994034,3cyclictest33-21ksoftirqd/207:45:182
134691400,11getstats0-21swapper/111:00:301
134691400,10getstats0-21swapper/109:58:451
134491400,5ptp4l29254-21users09:40:300
134491400,5ptp4l0-21swapper/308:05:143
134491400,5ptp4l0-21swapper/208:05:492
134491400,5ptp4l0-21swapper/111:10:201
134491400,4ptp4l23351-21hddtemp_smartct10:40:181
134491400,4ptp4l18789-21hddtemp_smartct09:20:160
134491400,4ptp4l18600-21df_abs10:30:150
134491400,4ptp4l12549-21iostat11:25:192
134491400,4ptp4l10108-21memory09:00:210
134491400,4ptp4l0-21swapper/311:35:223
134491400,4ptp4l0-21swapper/211:41:202
134491400,4ptp4l0-21swapper/211:32:222
134491400,4ptp4l0-21swapper/211:15:572
134491400,4ptp4l0-21swapper/211:15:572
134491400,4ptp4l0-21swapper/211:11:142
134491400,4ptp4l0-21swapper/210:19:002
134491400,4ptp4l0-21swapper/208:21:092
134491400,4ptp4l0-21swapper/207:51:342
134491400,4ptp4l0-21swapper/110:55:271
134491400,4ptp4l0-21swapper/012:20:010
134491400,4ptp4l0-21swapper/011:50:250
134491400,4ptp4l0-21swapper/011:31:310
134491400,4ptp4l0-21swapper/010:35:140
134491400,3ptp4l26995-21ls10:45:261
134491400,3ptp4l16322-21diskstats10:25:200
134491400,3ptp4l14279-21apt-get11:30:121
134491400,3ptp4l11452-21apt-get09:05:101
134491400,3ptp4l0-21swapper/312:39:593
134491400,3ptp4l0-21swapper/208:15:442
134491400,3ptp4l0-21swapper/011:17:000
134491400,3ptp4l0-21swapper/011:17:000
134491400,2ptp4l14377-21strings08:00:221
46198390,3rtkit-daemon134491ptp4l11:40:403
134491390,5ptp4l0-21swapper/211:00:182
134491390,5ptp4l0-21swapper/208:30:272
134491390,5ptp4l0-21swapper/111:15:231
134491390,5ptp4l0-21swapper/111:15:231
134491390,4ptp4l0-21swapper/312:10:163
134491390,4ptp4l0-21swapper/312:08:413
134491390,4ptp4l0-21swapper/311:48:123
134491390,4ptp4l0-21swapper/310:30:133
134491390,4ptp4l0-21swapper/309:42:063
134491390,4ptp4l0-21swapper/309:25:063
134491390,4ptp4l0-21swapper/309:12:443
134491390,4ptp4l0-21swapper/307:52:063
134491390,4ptp4l0-21swapper/307:12:523
134491390,4ptp4l0-21swapper/212:15:492
134491390,4ptp4l0-21swapper/210:30:112
134491390,4ptp4l0-21swapper/210:20:042
134491390,4ptp4l0-21swapper/210:05:582
134491390,4ptp4l0-21swapper/209:51:332
134491390,4ptp4l0-21swapper/209:49:392
134491390,4ptp4l0-21swapper/208:35:172
134491390,4ptp4l0-21swapper/208:27:202
134491390,4ptp4l0-21swapper/208:27:192
134491390,4ptp4l0-21swapper/207:55:452
134491390,4ptp4l0-21swapper/207:40:312
134491390,4ptp4l0-21swapper/207:27:432
134491390,4ptp4l0-21swapper/207:17:482
134491390,4ptp4l0-21swapper/108:50:161
134491390,4ptp4l0-21swapper/108:45:181
134491390,4ptp4l0-21swapper/107:15:191
134491390,4ptp4l0-21swapper/012:05:230
134491390,4ptp4l0-21swapper/010:15:160
134491390,4ptp4l0-21swapper/007:45:130
134491390,3ptp4l9399-21diskstats10:10:140
134491390,3ptp4l5167-21diskstats11:10:180
134491390,3ptp4l30543-21diskstats10:55:183
134491390,3ptp4l0-21swapper/107:30:171
134491390,3ptp4l0-21swapper/010:45:240
134491380,4ptp4l4497-21ps07:40:193
134491380,4ptp4l0-21swapper/311:55:163
134491380,4ptp4l0-21swapper/311:30:173
134491380,4ptp4l0-21swapper/311:21:103
134491380,4ptp4l0-21swapper/311:10:233
134491380,4ptp4l0-21swapper/309:37:013
134491380,4ptp4l0-21swapper/309:15:203
134491380,4ptp4l0-21swapper/308:55:323
134491380,4ptp4l0-21swapper/308:40:413
134491380,4ptp4l0-21swapper/308:20:503
134491380,4ptp4l0-21swapper/307:58:123
134491380,3ptp4l18733-21hddtemp_smartct10:30:171
134491380,3ptp4l16950-21kworker/3:009:23:523
134491380,3ptp4l0-21swapper/312:04:003
134491380,3ptp4l0-21swapper/308:52:133
134491380,3ptp4l0-21swapper/308:47:023
134491380,3ptp4l0-21swapper/307:48:293
134491380,3ptp4l0-21swapper/109:00:291
134491370,4ptp4l0-21swapper/312:33:363
134491370,4ptp4l0-21swapper/311:00:183
134491370,4ptp4l0-21swapper/310:53:543
134491370,4ptp4l0-21swapper/111:05:141
134491370,3ptp4l0-21swapper/311:25:163
134491370,3ptp4l0-21swapper/309:30:403
134491370,3ptp4l0-21swapper/308:25:143
134491370,3ptp4l0-21swapper/308:25:143
134491370,3ptp4l0-21swapper/110:15:141
134491360,3ptp4l0-21swapper/310:38:393
134491360,3ptp4l0-21swapper/310:24:543
134491360,3ptp4l0-21swapper/310:03:463
134491360,3ptp4l0-21swapper/310:03:463
134491360,3ptp4l0-21swapper/308:01:143
134491360,3ptp4l0-21swapper/307:30:103
134491350,3ptp4l0-21swapper/310:07:223
200072235,11sleep30-21swapper/307:05:133
217612193,3sleep20-21swapper/207:06:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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