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2026-06-09 - 23:35
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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 Tue Jun 09, 2026 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41032700,3sleep24107-21cpuspeed_turbos11:20:142
134491650,5ptp4l0-21swapper/109:25:171
202002640,4sleep220204-21fschecks_time09:35:162
134491640,5ptp4l0-21swapper/112:00:211
134491600,4ptp4l0-21swapper/109:00:251
1650999599,22cyclictest27319-21unixbench_multi07:30:272
134491590,4ptp4l0-21swapper/107:30:271
1650999582,21cyclictest0-21swapper/211:25:292
134491580,4ptp4l0-21swapper/108:00:291
134491580,4ptp4l0-21swapper/107:41:211
134491580,3ptp4l0-21swapper/311:40:143
134491580,3ptp4l0-21swapper/311:40:133
134491580,3ptp4l0-21swapper/007:15:260
134491570,5ptp4l1650799cyclictest11:45:000
134491570,5ptp4l1650799cyclictest11:45:000
1650999561,2cyclictest16504-21ls11:45:222
134491560,4ptp4l0-21swapper/107:54:141
134491560,3ptp4l0-21swapper/009:40:260
134691550,4getstats0-21swapper/309:30:053
134491550,4ptp4l0-21swapper/109:53:551
134491550,4ptp4l0-21swapper/109:06:231
134491550,3ptp4l0-21swapper/112:23:391
134491550,3ptp4l0-21swapper/011:16:240
134691540,13getstats0-21swapper/110:35:351
134491540,4ptp4l0-21swapper/111:59:071
134491540,4ptp4l0-21swapper/110:10:511
134491540,4ptp4l0-21swapper/110:07:021
134491540,3ptp4l0-21swapper/110:25:041
134491540,3ptp4l0-21swapper/007:39:430
134491530,4ptp4l0-21swapper/111:48:131
134491530,4ptp4l0-21swapper/111:33:591
134491520,4ptp4l0-21swapper/109:17:131
1650999511,21cyclictest134691getstats07:50:122
134491510,4ptp4l0-21swapper/110:46:021
134491510,4ptp4l0-21swapper/110:03:171
134491510,3ptp4l0-21swapper/112:15:231
134491510,3ptp4l0-21swapper/111:24:431
134491510,3ptp4l0-21swapper/108:51:581
134491510,10ptp4l0-21swapper/110:56:471
134491500,7ptp4l14121-21apt-get07:05:123
134491500,4ptp4l0-21swapper/111:10:451
134491500,4ptp4l0-21swapper/109:43:291
134491500,4ptp4l0-21swapper/108:43:591
134491490,4ptp4l0-21swapper/110:51:111
134491490,4ptp4l0-21swapper/108:38:411
134491490,4ptp4l0-21swapper/107:46:411
1650999482,3cyclictest0-21swapper/208:54:352
1650999470,3cyclictest22408-21diskstats09:40:162
134691470,12getstats26965-21latency_hist12:10:001
134491470,6ptp4l0-21swapper/207:05:122
134491470,4ptp4l0-21swapper/109:59:201
134491470,3ptp4l0-21swapper/207:10:482
134491470,3ptp4l0-21swapper/112:30:121
134491470,3ptp4l0-21swapper/109:35:171
134491470,3ptp4l0-21swapper/109:10:261
16509994629,15cyclictest33-21ksoftirqd/209:50:102
16507994539,3cyclictest25503-21sleep07:30:010
134491450,9ptp4l0-21swapper/309:50:053
134491450,3ptp4l0-21swapper/111:17:401
134491450,3ptp4l0-21swapper/108:47:261
134491450,3ptp4l0-21swapper/107:15:271
134491450,11ptp4l0-21swapper/308:15:163
16510994439,3cyclictest41-21ksoftirqd/312:40:013
16510994439,3cyclictest41-21ksoftirqd/307:40:003
1650999442,1cyclictest0-21swapper/208:44:132
134491440,9ptp4l0-21swapper/311:38:243
134491440,9ptp4l0-21swapper/311:05:573
134491440,9ptp4l0-21swapper/309:18:323
134491440,9ptp4l0-21swapper/307:42:123
134491440,8ptp4l0-21swapper/108:11:271
134491440,4ptp4l10818-21apt-get11:35:111
134491440,3ptp4l0-21swapper/107:57:141
134491440,3ptp4l0-21swapper/107:06:571
134491440,3ptp4l0-21swapper/010:52:470
134491440,3ptp4l0-21swapper/008:35:120
1650999431,4cyclictest134691getstats12:05:112
134691430,10getstats0-21swapper/110:34:021
134491430,9ptp4l0-21swapper/310:48:023
134491430,5ptp4l28153-21meminfo12:10:220
134491430,4ptp4l21445-21ls10:45:260
134491430,4ptp4l0-21swapper/111:07:041
134491430,3ptp4l0-21swapper/011:54:480
134491430,3ptp4l0-21swapper/010:35:420
134491430,3ptp4l0-21swapper/008:18:470
134491430,3ptp4l0-21swapper/008:02:490
16510994237,3cyclictest41-21ksoftirqd/307:50:003
16510994237,3cyclictest21276-21latency_hist08:29:593
16510994235,4cyclictest1779-21grep10:05:213
134691420,11getstats0-21swapper/112:12:521
134491420,9ptp4l0-21swapper/307:19:033
134491420,7ptp4l0-21swapper/007:08:120
134491420,5ptp4l20160-21memory08:25:201
134491420,5ptp4l17756-21irqstats08:20:180
134491420,5ptp4l0-21swapper/009:20:270
134491420,5ptp4l0-21swapper/009:10:190
134491420,4ptp4l26586-21apt-get11:00:020
134491420,4ptp4l0-21swapper/108:58:321
134491420,4ptp4l0-21swapper/107:26:241
134491420,3ptp4l8173-21apt-get10:20:130
134491420,3ptp4l0-21swapper/307:12:573
134491420,3ptp4l0-21swapper/011:29:440
16510994136,3cyclictest41-21ksoftirqd/311:45:193
16510994135,3cyclictest41-21ksoftirqd/309:30:003
16510994130,9cyclictest41-21ksoftirqd/309:10:283
1651099412,2cyclictest121rcu_preempt09:10:003
1650999410,3cyclictest212-21systemd-journal09:27:092
1650999410,30cyclictest134491ptp4l07:25:002
1650799411,4cyclictest134491ptp4l09:00:110
134491410,6ptp4l1319-21awk08:55:173
134491410,5ptp4l0-21swapper/310:10:263
134491410,5ptp4l0-21swapper/112:25:161
134491410,5ptp4l0-21swapper/110:20:161
134491410,5ptp4l0-21swapper/108:15:301
134491410,5ptp4l0-21swapper/012:20:200
134491410,5ptp4l0-21swapper/008:40:140
134491410,5ptp4l0-21swapper/008:25:150
134491410,5ptp4l0-21swapper/007:42:230
134491410,4ptp4l29826-21irqstats09:55:190
134491410,4ptp4l0-21swapper/312:10:203
134491410,4ptp4l0-21swapper/311:57:323
134491410,4ptp4l0-21swapper/309:40:023
134491410,4ptp4l0-21swapper/211:35:142
134491410,4ptp4l0-21swapper/209:17:582
134491410,4ptp4l0-21swapper/208:22:172
134491410,4ptp4l0-21swapper/110:15:171
134491410,4ptp4l0-21swapper/109:45:271
134491410,4ptp4l0-21swapper/109:20:211
134491410,4ptp4l0-21swapper/012:30:190
134491410,4ptp4l0-21swapper/012:15:120
134491410,4ptp4l0-21swapper/009:35:150
134491410,4ptp4l0-21swapper/008:10:170
134491410,3ptp4l32672-21ls11:10:200
134491410,3ptp4l18255-21python08:20:261
134491410,3ptp4l17786-21apt-get11:50:121
134491410,3ptp4l10891-21memory08:05:221
16510994035,3cyclictest41-21ksoftirqd/309:04:593
16509994034,4cyclictest33-21ksoftirqd/207:29:302
1650999402,24cyclictest26230-21taskset10:55:352
1650999401,2cyclictest31823-21apt-get12:20:132
1650799403,33cyclictest15181-21sed09:25:150
134491400,9ptp4l0-21swapper/212:11:252
134491400,5ptp4l17425-21acpi10:40:120
134491400,5ptp4l0-21swapper/312:26:593
134491400,5ptp4l0-21swapper/208:15:172
134491400,5ptp4l0-21swapper/112:35:181
134491400,5ptp4l0-21swapper/010:00:260
134491400,5ptp4l0-21swapper/007:45:230
134491400,4ptp4l9-21ksoftirqd/010:30:200
134491400,4ptp4l8826-21df_inode11:30:140
134491400,4ptp4l6438-21meminfo09:05:190
134491400,4ptp4l28252-21apt-get07:35:111
134491400,4ptp4l24994-21df_inode12:05:130
134491400,4ptp4l19514-21df_inode08:25:132
134491400,4ptp4l18437-21memory09:30:201
134491400,4ptp4l17866-21hddtemp_smartct10:40:171
134491400,4ptp4l16845-21diskstats07:10:141
134491400,4ptp4l0-21swapper/312:03:063
134491400,4ptp4l0-21swapper/311:50:043
134491400,4ptp4l0-21swapper/311:00:183
134491400,4ptp4l0-21swapper/310:22:093
134491400,4ptp4l0-21swapper/308:04:403
134491400,4ptp4l0-21swapper/307:26:383
134491400,4ptp4l0-21swapper/212:17:252
134491400,4ptp4l0-21swapper/210:15:402
134491400,4ptp4l0-21swapper/209:03:002
134491400,4ptp4l0-21swapper/207:35:142
134491400,4ptp4l0-21swapper/111:41:431
134491400,4ptp4l0-21swapper/111:41:421
134491400,4ptp4l0-21swapper/012:35:200
134491400,4ptp4l0-21swapper/012:00:160
134491400,4ptp4l0-21swapper/009:17:210
134491400,4ptp4l0-21swapper/008:50:130
134491400,4ptp4l0-21swapper/008:45:150
134491400,4ptp4l0-21swapper/008:30:190
134491400,3ptp4l29671-21diskstats11:05:160
134491400,3ptp4l20297-21df11:55:160
134491400,3ptp4l1404-21df10:05:160
16510993935,3cyclictest41-21ksoftirqd/308:40:143
16510993934,3cyclictest41-21ksoftirqd/310:05:003
1650999393,30cyclictest8523-21apt-get11:30:122
16509993932,4cyclictest33-21ksoftirqd/207:58:582
1650999392,2cyclictest0-21swapper/211:01:232
134691390,4getstats0-21swapper/009:50:060
134491390,5ptp4l3400-21unixbench_singl12:25:280
134491390,5ptp4l0-21swapper/312:18:143
134491390,5ptp4l0-21swapper/311:25:123
134491390,5ptp4l0-21swapper/310:17:163
134491390,5ptp4l0-21swapper/309:48:303
134491390,5ptp4l0-21swapper/307:30:123
134491390,5ptp4l0-21swapper/010:25:090
134491390,4ptp4l6414-21iostat10:15:160
134491390,4ptp4l21478-21fschecks_count07:20:151
134491390,4ptp4l0-21swapper/311:24:383
134491390,4ptp4l0-21swapper/311:15:533
134491390,4ptp4l0-21swapper/310:52:413
134491390,4ptp4l0-21swapper/309:21:513
134491390,4ptp4l0-21swapper/308:51:493
134491390,4ptp4l0-21swapper/308:45:393
134491390,4ptp4l0-21swapper/308:39:203
134491390,4ptp4l0-21swapper/308:13:193
134491390,4ptp4l0-21swapper/308:07:383
134491390,4ptp4l0-21swapper/212:37:412
134491390,4ptp4l0-21swapper/212:34:342
134491390,4ptp4l0-21swapper/211:58:012
134491390,4ptp4l0-21swapper/211:52:142
134491390,4ptp4l0-21swapper/211:13:032
134491390,4ptp4l0-21swapper/211:05:072
134491390,4ptp4l0-21swapper/210:45:332
134491390,4ptp4l0-21swapper/210:35:262
134491390,4ptp4l0-21swapper/210:32:002
134491390,4ptp4l0-21swapper/210:28:102
134491390,4ptp4l0-21swapper/210:20:362
134491390,4ptp4l0-21swapper/210:14:392
134491390,4ptp4l0-21swapper/210:04:572
134491390,4ptp4l0-21swapper/209:55:232
134491390,4ptp4l0-21swapper/209:46:562
134491390,4ptp4l0-21swapper/209:33:092
134491390,4ptp4l0-21swapper/209:24:122
134491390,4ptp4l0-21swapper/208:48:312
134491390,4ptp4l0-21swapper/208:37:312
134491390,4ptp4l0-21swapper/208:07:432
134491390,4ptp4l0-21swapper/207:43:252
134491390,4ptp4l0-21swapper/108:33:461
134491390,4ptp4l0-21swapper/011:45:260
134491390,4ptp4l0-21swapper/011:35:210
134491390,4ptp4l0-21swapper/011:20:310
134491390,4ptp4l0-21swapper/010:55:180
134491390,4ptp4l0-21swapper/009:45:160
134491390,4ptp4l0-21swapper/008:55:110
134491390,4ptp4l0-21swapper/007:30:180
134491390,4ptp4l0-21swapper/007:20:140
134491390,3ptp4l6211-21/usr/sbin/munin11:25:201
134491390,3ptp4l4141-21ntp_states07:50:230
134491390,3ptp4l27365-21df_inode11:00:141
134491390,3ptp4l0-21swapper/310:37:173
134491390,3ptp4l0-21swapper/010:10:190
16509993833,3cyclictest33-21ksoftirqd/212:03:272
1650999381,2cyclictest22239-21apt-get10:50:132
134491380,4ptp4l10789-21cut08:05:190
134491380,4ptp4l0-21swapper/312:32:543
134491380,4ptp4l0-21swapper/312:21:223
134491380,4ptp4l0-21swapper/312:08:463
134491380,4ptp4l0-21swapper/311:13:423
134491380,4ptp4l0-21swapper/310:57:393
134491380,4ptp4l0-21swapper/310:41:003
134491380,4ptp4l0-21swapper/310:31:273
134491380,4ptp4l0-21swapper/310:26:393
134491380,4ptp4l0-21swapper/309:37:003
134491380,4ptp4l0-21swapper/308:23:003
134491380,4ptp4l0-21swapper/307:55:563
134491380,4ptp4l0-21swapper/307:20:193
134491380,4ptp4l0-21swapper/212:26:292
134491380,4ptp4l0-21swapper/211:40:012
134491380,4ptp4l0-21swapper/211:40:012
134491380,4ptp4l0-21swapper/211:17:322
134491380,4ptp4l0-21swapper/210:41:432
134491380,4ptp4l0-21swapper/208:56:552
134491380,4ptp4l0-21swapper/208:34:432
134491380,4ptp4l0-21swapper/208:10:022
134491380,4ptp4l0-21swapper/208:01:172
134491380,4ptp4l0-21swapper/207:48:212
134491380,4ptp4l0-21swapper/207:17:242
134491380,4ptp4l0-21swapper/007:55:150
134491380,4ptp4l0-21swapper/007:10:120
134491380,3ptp4l0-21swapper/311:31:133
134491380,3ptp4l0-21swapper/307:50:083
134491380,3ptp4l0-21swapper/209:11:252
134491380,3ptp4l0-21swapper/009:30:230
134491370,4ptp4l5631-21tr09:05:122
134491370,4ptp4l0-21swapper/309:55:253
134491370,4ptp4l0-21swapper/308:32:563
134491350,3ptp4l0-21swapper/210:05:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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