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2026-09-04 - 21:17
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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 Fri Sep 04, 2026 12:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2831021800,7sleep02740499cyclictest07:10:200
124421210,4sleep10-21swapper/112:00:211
74802730,6sleep10-21swapper/108:45:171
134491690,8ptp4l0-21swapper/212:04:542
134491680,5ptp4l0-21swapper/107:35:101
27407996634,4cyclictest41-21ksoftirqd/309:55:263
27407996627,8cyclictest41-21ksoftirqd/311:26:553
27407996627,10cyclictest41-21ksoftirqd/309:51:043
27407996527,8cyclictest41-21ksoftirqd/309:39:373
246732650,6sleep10-21swapper/110:30:241
27407996427,10cyclictest41-21ksoftirqd/312:34:413
27407996423,9cyclictest41-21ksoftirqd/307:53:573
27407996333,7cyclictest41-21ksoftirqd/311:20:003
27407996332,3cyclictest41-21ksoftirqd/310:35:153
27407996330,4cyclictest41-21ksoftirqd/308:15:153
27407996330,3cyclictest41-21ksoftirqd/308:00:133
27407996327,8cyclictest41-21ksoftirqd/308:47:293
27407996325,9cyclictest41-21ksoftirqd/309:26:253
27407996324,9cyclictest41-21ksoftirqd/310:30:253
27407996323,8cyclictest41-21ksoftirqd/308:23:543
27407996322,7cyclictest41-21ksoftirqd/309:40:243
27407996321,7cyclictest41-21ksoftirqd/310:42:273
27407996233,7cyclictest41-21ksoftirqd/310:25:013
27407996227,10cyclictest41-21ksoftirqd/308:34:143
27407996225,8cyclictest41-21ksoftirqd/310:12:013
27407996225,11cyclictest41-21ksoftirqd/309:01:423
27407996224,7cyclictest41-21ksoftirqd/307:48:363
27407996224,7cyclictest41-21ksoftirqd/307:26:223
134491620,5ptp4l0-21swapper/107:10:231
27407996131,3cyclictest41-21ksoftirqd/307:15:183
27407996126,8cyclictest41-21ksoftirqd/311:44:463
27407996124,8cyclictest41-21ksoftirqd/311:11:233
27407996124,8cyclictest41-21ksoftirqd/307:20:043
27407996123,8cyclictest41-21ksoftirqd/308:52:143
27407996123,7cyclictest41-21ksoftirqd/312:02:343
27407996121,8cyclictest41-21ksoftirqd/310:28:393
27407996025,9cyclictest41-21ksoftirqd/310:55:003
27407996024,8cyclictest41-21ksoftirqd/310:01:183
27407996022,7cyclictest41-21ksoftirqd/312:06:083
134491600,4ptp4l18156-21apt-get08:00:111
27407995931,6cyclictest41-21ksoftirqd/312:15:183
27407995924,4cyclictest41-21ksoftirqd/308:25:273
27407995922,7cyclictest41-21ksoftirqd/311:22:303
134491590,4ptp4l0-21swapper/108:05:171
134491590,3ptp4l12568-21missed_timers08:55:191
134491590,17ptp4l12655-21memory11:15:180
27407995830,3cyclictest41-21ksoftirqd/310:45:183
27407995824,7cyclictest41-21ksoftirqd/308:35:213
27407995823,4cyclictest41-21ksoftirqd/312:10:153
27407995823,4cyclictest41-21ksoftirqd/312:10:153
27407995821,8cyclictest41-21ksoftirqd/308:12:543
134491580,5ptp4l0-21swapper/110:10:151
27407995731,3cyclictest41-21ksoftirqd/308:40:173
27407995730,3cyclictest41-21ksoftirqd/311:37:473
27407995726,3cyclictest41-21ksoftirqd/309:45:263
27407995724,3cyclictest41-21ksoftirqd/312:25:263
27407995719,3cyclictest41-21ksoftirqd/308:55:233
134491570,3ptp4l0-21swapper/010:15:180
134491570,3ptp4l0-21swapper/009:24:510
27407995631,6cyclictest41-21ksoftirqd/310:55:143
27407995625,7cyclictest41-21ksoftirqd/307:10:193
27407995625,10cyclictest41-21ksoftirqd/311:30:323
27407995624,6cyclictest41-21ksoftirqd/307:55:153
27407995621,7cyclictest41-21ksoftirqd/311:10:003
27407995523,8cyclictest41-21ksoftirqd/312:35:243
27407995519,4cyclictest41-21ksoftirqd/309:20:133
134491550,4ptp4l0-21swapper/208:29:092
134491550,3ptp4l1060-21processes08:30:241
27407995422,7cyclictest41-21ksoftirqd/309:05:243
27407995420,7cyclictest41-21ksoftirqd/312:20:283
134491540,3ptp4l0-21swapper/007:21:080
134491540,12ptp4l4629-21apt-config08:40:021
2740799533,7cyclictest41-21ksoftirqd/308:05:183
2740799532,7cyclictest121rcu_preempt07:32:553
27407995321,9cyclictest41-21ksoftirqd/309:30:133
27407995320,3cyclictest41-21ksoftirqd/311:50:323
174512530,4sleep00-21swapper/011:25:220
134491520,4ptp4l0-21swapper/112:38:131
134491520,4ptp4l0-21swapper/011:33:120
134491520,14ptp4l0-21swapper/210:12:532
2740799513,9cyclictest121rcu_preempt11:56:533
27407995121,7cyclictest41-21ksoftirqd/309:15:183
134491510,4ptp4l0-21swapper/212:24:082
134491510,4ptp4l0-21swapper/210:32:212
134491510,4ptp4l0-21swapper/208:37:272
134491510,4ptp4l0-21swapper/208:06:352
134491510,4ptp4l0-21swapper/207:17:152
134491510,4ptp4l0-21swapper/111:47:131
134491510,17ptp4l9-21ksoftirqd/010:33:470
2740799506,8cyclictest41-21ksoftirqd/310:05:163
2740799504,7cyclictest0-21swapper/307:35:183
2740799503,7cyclictest0-21swapper/310:15:233
134491500,4ptp4l27436-21apt-get07:10:132
134491500,4ptp4l0-21swapper/211:38:222
134491500,4ptp4l0-21swapper/211:33:232
134491500,4ptp4l0-21swapper/208:59:162
134491500,4ptp4l0-21swapper/008:03:590
134491500,3ptp4l0-21swapper/210:15:232
134491500,19ptp4l9-21ksoftirqd/012:17:380
134491500,11ptp4l0-21swapper/007:40:260
2740799491,7cyclictest121rcu_preempt09:13:533
134491490,4ptp4l0-21swapper/210:44:122
134491490,4ptp4l0-21swapper/208:21:182
134491490,4ptp4l0-21swapper/207:33:512
134491490,4ptp4l0-21swapper/111:11:281
134491490,4ptp4l0-21swapper/110:58:231
134491490,4ptp4l0-21swapper/010:27:090
134491490,3ptp4l0-21swapper/207:41:442
134491490,3ptp4l0-21swapper/007:05:270
134491490,2ptp4l0-21swapper/007:58:420
134491490,11ptp4l0-21swapper/107:33:181
134491480,4ptp4l0-21swapper/208:52:482
134491480,4ptp4l0-21swapper/208:10:392
134491480,4ptp4l0-21swapper/010:42:310
134491480,4ptp4l0-21swapper/009:04:380
134491480,4ptp4l0-21swapper/008:54:080
134491480,4ptp4l0-21swapper/008:39:480
134491480,3ptp4l0-21swapper/111:50:511
134491480,3ptp4l0-21swapper/011:12:430
134491480,2ptp4l0-21swapper/211:18:562
134491480,2ptp4l0-21swapper/210:05:122
2740799472,7cyclictest41-21ksoftirqd/311:45:143
2740799470,2cyclictest121rcu_preempt11:00:103
134491470,5ptp4l0-21swapper/107:09:061
134491470,4ptp4l0-21swapper/108:10:311
134491470,4ptp4l0-21swapper/012:26:390
134491470,3ptp4l0-21swapper/209:00:052
134491470,3ptp4l0-21swapper/009:39:300
134491470,2ptp4l33-21ksoftirqd/208:40:572
2740799463,6cyclictest41-21ksoftirqd/307:41:343
134491460,4ptp4l0-21swapper/212:32:582
134491460,4ptp4l0-21swapper/207:20:012
134491460,4ptp4l0-21swapper/011:21:320
134491460,4ptp4l0-21swapper/009:07:150
134491460,3ptp4l0-21swapper/212:13:502
134491460,3ptp4l0-21swapper/212:13:502
134491460,3ptp4l0-21swapper/111:30:191
134491460,3ptp4l0-21swapper/011:36:560
134491460,3ptp4l0-21swapper/010:02:380
134491460,15ptp4l9-21ksoftirqd/008:47:290
134491450,3ptp4l0-21swapper/110:19:171
134491450,3ptp4l0-21swapper/010:49:170
134491450,3ptp4l0-21swapper/007:31:470
134491450,2ptp4l0-21swapper/210:50:292
134491450,10ptp4l0-21swapper/209:56:142
2740699440,2cyclictest121rcu_preempt09:49:062
134491440,6ptp4l0-21swapper/010:50:300
134491440,4ptp4l31503-21ls09:35:242
134491440,4ptp4l0-21swapper/111:22:471
134491440,4ptp4l0-21swapper/107:57:231
134491440,4ptp4l0-21swapper/008:34:280
134491440,4ptp4l0-21swapper/007:39:060
134491430,9ptp4l0-21swapper/209:50:242
134491430,9ptp4l0-21swapper/207:51:262
134491430,5ptp4l0-21swapper/209:10:122
134491430,3ptp4l0-21swapper/011:02:140
134491430,10ptp4l0-21swapper/211:27:112
134491420,9ptp4l0-21swapper/209:25:012
134491420,9ptp4l0-21swapper/110:04:171
134491420,5ptp4l0-21swapper/009:45:100
134491420,5ptp4l0-21swapper/009:10:140
134491420,4ptp4l4815-21apt-get11:00:111
134491420,4ptp4l29937-21apt-get08:25:110
134491420,4ptp4l20720-21apt-get08:05:120
134491420,4ptp4l13922-21apt-get09:00:111
134491410,5ptp4l18879-21diskstats09:10:141
134491410,5ptp4l0-21swapper/212:35:132
134491410,5ptp4l0-21swapper/209:30:132
134491410,5ptp4l0-21swapper/110:45:141
134491410,5ptp4l0-21swapper/107:15:281
134491410,4ptp4l5818-21memory09:50:221
134491410,4ptp4l32616-21apt-get09:40:122
134491410,4ptp4l3133-21iostat09:45:161
134491410,4ptp4l2161-21df07:25:130
134491410,4ptp4l16525-21df_inode09:05:141
134491410,4ptp4l12552-21meminfo08:55:190
134491410,3ptp4l4868-21apt-get09:50:140
134491410,3ptp4l4008-21ls10:55:260
134491410,3ptp4l32549-21apt-get10:50:161
134491410,3ptp4l30296-21iostat07:15:170
134491410,3ptp4l27789-21apt-get09:30:100
134491410,3ptp4l24607-21ls09:20:261
27405994033,4cyclictest25-21ksoftirqd/111:05:271
134491400,6ptp4l0-21swapper/010:10:230
134491400,5ptp4l7244-21munin-node12:15:112
134491400,5ptp4l0-21swapper/110:25:201
134491400,5ptp4l0-21swapper/008:40:130
134491400,5ptp4l0-21swapper/008:20:280
134491400,4ptp4l7421-21df_inode11:05:140
134491400,4ptp4l21076-21df09:15:120
134491400,4ptp4l18746-21apt-get10:20:120
134491400,4ptp4l12822-21ntp_states11:15:191
134491400,4ptp4l0-21swapper/210:24:282
134491400,4ptp4l0-21swapper/207:46:172
134491400,4ptp4l0-21swapper/207:39:482
134491400,4ptp4l0-21swapper/108:15:251
134491400,4ptp4l0-21swapper/011:40:200
134491400,4ptp4l0-21swapper/010:09:100
134491400,4ptp4l0-21swapper/009:58:200
134491400,4ptp4l0-21swapper/009:41:460
134491400,3ptp4l30296-21df09:35:131
134491400,3ptp4l30147-21df08:25:141
134491400,3ptp4l26003-21df11:45:120
134491400,3ptp4l2260-21diskstats07:25:151
134491390,4ptp4l2869-21cstates12:05:131
134491390,4ptp4l12159-21memory07:45:200
134491390,4ptp4l0-21swapper/212:29:242
134491390,4ptp4l0-21swapper/212:05:582
134491390,4ptp4l0-21swapper/211:45:172
134491390,4ptp4l0-21swapper/211:06:182
134491390,4ptp4l0-21swapper/210:35:012
134491390,4ptp4l0-21swapper/210:00:292
134491390,4ptp4l0-21swapper/209:18:182
134491390,4ptp4l0-21swapper/209:06:102
134491390,4ptp4l0-21swapper/208:34:412
134491390,4ptp4l0-21swapper/208:19:342
134491390,4ptp4l0-21swapper/208:02:022
134491390,4ptp4l0-21swapper/207:57:012
134491390,4ptp4l0-21swapper/112:27:241
134491390,4ptp4l0-21swapper/110:40:151
134491390,4ptp4l0-21swapper/110:35:221
134491390,4ptp4l0-21swapper/109:55:231
134491390,4ptp4l0-21swapper/109:43:261
134491390,4ptp4l0-21swapper/109:29:021
134491390,4ptp4l0-21swapper/108:39:521
134491390,4ptp4l0-21swapper/107:20:161
134491390,4ptp4l0-21swapper/012:24:130
134491390,4ptp4l0-21swapper/012:06:350
134491390,4ptp4l0-21swapper/012:00:500
134491390,4ptp4l0-21swapper/011:59:060
134491390,4ptp4l0-21swapper/011:51:190
134491390,4ptp4l0-21swapper/010:35:030
134491390,4ptp4l0-21swapper/009:25:390
134491390,4ptp4l0-21swapper/008:10:240
134491390,3ptp4l25518-21df08:15:120
134491390,3ptp4l24238-21memory11:40:221
134491390,3ptp4l21709-21irqstats09:15:181
134491390,3ptp4l14946-21iostat12:30:160
134491390,3ptp4l14346-21irqstats07:50:180
134491390,3ptp4l10153-21irqstats08:50:191
134491390,3ptp4l0-21swapper/112:13:591
134491390,3ptp4l0-21swapper/112:13:581
134491390,3ptp4l0-21swapper/111:35:591
134491390,3ptp4l0-21swapper/110:24:271
134491390,3ptp4l0-21swapper/107:40:151
134491380,5ptp4l31766-21expr11:55:261
134491380,4ptp4l5499-21if_err_enp4s012:10:150
134491380,4ptp4l5499-21if_err_enp4s012:10:150
134491380,4ptp4l0-21swapper/211:55:152
134491380,4ptp4l0-21swapper/211:41:212
134491380,4ptp4l0-21swapper/211:02:322
134491380,4ptp4l0-21swapper/210:55:392
134491380,4ptp4l0-21swapper/210:46:452
134491380,4ptp4l0-21swapper/210:25:412
134491380,4ptp4l0-21swapper/209:20:412
134491380,4ptp4l0-21swapper/207:29:342
134491380,4ptp4l0-21swapper/112:20:181
134491380,4ptp4l0-21swapper/112:17:441
134491380,4ptp4l0-21swapper/111:25:231
134491380,4ptp4l0-21swapper/110:07:001
134491380,4ptp4l0-21swapper/109:30:201
134491380,4ptp4l0-21swapper/107:45:201
134491380,3ptp4l0-21swapper/108:20:201
134491380,3ptp4l0-21swapper/012:36:400
27405993732,3cyclictest25-21ksoftirqd/107:50:161
134491370,4ptp4l0-21swapper/211:50:262
134491370,4ptp4l0-21swapper/211:20:232
134491370,4ptp4l0-21swapper/211:10:562
134491370,4ptp4l0-21swapper/112:30:071
134491370,3ptp4l0-21swapper/208:46:252
250712224,10sleep225069-21apt-get07:05:132
264132134,3sleep30-21swapper/307:05:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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