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2026-04-14 - 18:58
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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 Apr 14, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
625621790,2sleep01420499cyclictest11:30:150
137672700,4sleep20-21swapper/209:25:292
134491680,3ptp4l0-21swapper/309:00:153
134491620,3ptp4l22413-21meminfo09:45:213
134491620,3ptp4l0-21swapper/310:25:153
134491590,3ptp4l0-21swapper/109:46:111
134491580,4ptp4l0-21swapper/210:50:232
134491580,4ptp4l0-21swapper/210:50:232
134491580,3ptp4l0-21swapper/109:11:141
134491580,3ptp4l0-21swapper/010:14:550
134491570,4ptp4l0-21swapper/107:44:081
134491570,4ptp4l0-21swapper/107:44:081
134491570,4ptp4l0-21swapper/011:12:520
134491570,3ptp4l0-21swapper/309:25:203
134491570,3ptp4l0-21swapper/212:30:162
134491560,3ptp4l0-21swapper/308:26:053
134491560,3ptp4l0-21swapper/209:15:302
1420599550,53cyclictest12768-21kworker/1:111:48:291
134491550,3ptp4l9401-21chrt08:05:383
134491550,11ptp4l0-21swapper/009:40:160
14206995417,3cyclictest33-21ksoftirqd/207:26:122
134491540,5ptp4l0-21swapper/312:25:123
134491540,5ptp4l0-21swapper/311:35:143
134491540,3ptp4l0-21swapper/211:45:272
134491530,4ptp4l0-21swapper/210:39:512
134491530,4ptp4l0-21swapper/210:15:002
134491530,4ptp4l0-21swapper/208:29:552
14206995223,8cyclictest33-21ksoftirqd/208:22:342
14206995223,8cyclictest33-21ksoftirqd/208:22:342
14206995218,4cyclictest33-21ksoftirqd/208:02:152
14206995216,4cyclictest33-21ksoftirqd/212:18:162
1420599522,48cyclictest17598-21kworker/1:008:11:291
134491520,5ptp4l0-21swapper/007:09:360
134491520,4ptp4l0-21swapper/312:30:513
134491520,10ptp4l0-21swapper/308:00:203
134491510,5ptp4l0-21swapper/209:49:212
134491510,4ptp4l0-21swapper/308:24:033
134491510,4ptp4l0-21swapper/308:24:033
134491510,4ptp4l0-21swapper/207:24:542
14206995014,4cyclictest33-21ksoftirqd/209:57:502
134491500,4ptp4l0-21swapper/310:30:353
134491500,4ptp4l0-21swapper/211:40:532
134491500,4ptp4l0-21swapper/211:01:322
134491500,4ptp4l0-21swapper/011:07:530
134491500,4ptp4l0-21swapper/007:31:050
134491500,3ptp4l0-21swapper/212:20:542
134491500,2ptp4l0-21swapper/210:41:572
134491500,17ptp4l33-21ksoftirqd/207:06:072
134491500,15ptp4l0-21swapper/207:45:002
134491500,15ptp4l0-21swapper/207:45:002
14206994920,7cyclictest33-21ksoftirqd/211:50:202
14206994920,3cyclictest33-21ksoftirqd/210:59:342
14206994916,5cyclictest33-21ksoftirqd/210:00:242
14206994916,3cyclictest33-21ksoftirqd/207:14:352
14206994914,7cyclictest33-21ksoftirqd/210:45:242
134491490,4ptp4l0-21swapper/308:43:173
134491490,4ptp4l0-21swapper/211:21:542
134491490,4ptp4l0-21swapper/208:31:222
134491490,3ptp4l0-21swapper/312:00:293
134491490,3ptp4l0-21swapper/311:25:033
134491490,3ptp4l0-21swapper/107:20:041
134491490,18ptp4l9-21ksoftirqd/011:37:110
1420699483,2cyclictest121rcu_preempt09:36:592
1420699482,4cyclictest0-21swapper/211:15:352
1420699482,2cyclictest121rcu_preempt09:23:592
14206994818,4cyclictest33-21ksoftirqd/210:27:082
14206994815,9cyclictest33-21ksoftirqd/208:45:002
14206994814,6cyclictest33-21ksoftirqd/208:15:242
134491480,9ptp4l13843-21sshd07:09:051
134491480,4ptp4l401ktimersoftd/311:15:273
134491480,3ptp4l0-21swapper/312:21:213
134491480,3ptp4l0-21swapper/311:20:293
134491480,3ptp4l0-21swapper/311:00:163
134491480,3ptp4l0-21swapper/111:51:001
14206994719,7cyclictest33-21ksoftirqd/209:42:572
14206994715,4cyclictest33-21ksoftirqd/207:18:222
14206994714,6cyclictest33-21ksoftirqd/210:05:152
14206994713,4cyclictest33-21ksoftirqd/212:11:462
1420699470,3cyclictest121rcu_preempt08:54:592
1420599472,44cyclictest17598-21kworker/1:007:36:191
134491470,5ptp4l0-21swapper/309:52:363
134491470,4ptp4l0-21swapper/310:02:343
134491470,4ptp4l0-21swapper/008:28:560
14206994613,4cyclictest33-21ksoftirqd/208:09:572
134491460,4ptp4l0-21swapper/310:59:553
134491460,4ptp4l0-21swapper/308:14:013
134491460,4ptp4l0-21swapper/212:07:202
134491460,4ptp4l0-21swapper/007:48:060
134491460,3ptp4l0-21swapper/311:30:453
134491460,3ptp4l0-21swapper/208:47:112
134491460,3ptp4l0-21swapper/110:05:341
14206994529,4cyclictest33-21ksoftirqd/212:36:492
134491450,5ptp4l0-21swapper/010:15:260
134491450,5ptp4l0-21swapper/010:15:250
134491450,4ptp4l5409-21apt-get08:00:110
134491450,4ptp4l0-21swapper/311:52:523
134491450,3ptp4l0-21swapper/311:14:513
134491450,3ptp4l0-21swapper/108:00:331
134491450,10ptp4l0-21swapper/210:20:502
14206994415,4cyclictest33-21ksoftirqd/209:31:372
14206994415,4cyclictest33-21ksoftirqd/207:32:582
14206994413,3cyclictest33-21ksoftirqd/209:04:072
134491440,9ptp4l0-21swapper/207:58:472
134491440,6ptp4l21329-21ls12:00:260
134491440,5ptp4l0-21swapper/009:50:260
134491440,4ptp4l22930-21ls08:35:280
14206994337,3cyclictest33-21ksoftirqd/211:05:122
14206994337,3cyclictest33-21ksoftirqd/207:49:592
14206994333,3cyclictest33-21ksoftirqd/209:00:012
14206994328,3cyclictest33-21ksoftirqd/211:39:192
14206994315,3cyclictest33-21ksoftirqd/212:27:142
134491430,7ptp4l1420499cyclictest10:08:180
134491430,6ptp4l15058-21/usr/sbin/munin08:20:170
134491430,6ptp4l15058-21/usr/sbin/munin08:20:170
134491430,5ptp4l15184-21meminfo07:10:193
134491430,5ptp4l0-21swapper/308:35:143
134491430,5ptp4l0-21swapper/209:05:132
134491430,5ptp4l0-21swapper/012:25:280
134491430,5ptp4l0-21swapper/011:40:150
134491430,10ptp4l0-21swapper/307:44:143
134491430,10ptp4l0-21swapper/307:44:143
14206994210,8cyclictest33-21ksoftirqd/210:15:142
14206994210,8cyclictest33-21ksoftirqd/210:15:142
14206994210,5cyclictest33-21ksoftirqd/212:00:142
134491420,9ptp4l0-21swapper/007:41:540
134491420,9ptp4l0-21swapper/007:41:530
134491420,5ptp4l3884-21df_inode11:25:160
134491420,5ptp4l0-21swapper/307:30:243
134491420,5ptp4l0-21swapper/111:25:121
134491420,5ptp4l0-21swapper/108:30:141
134491420,5ptp4l0-21swapper/108:15:171
134491420,5ptp4l0-21swapper/009:30:140
134491420,5ptp4l0-21swapper/009:05:290
134491420,5ptp4l0-21swapper/008:15:150
134491420,5ptp4l0-21swapper/008:10:210
134491420,4ptp4l17234-21apt-get10:45:110
134491420,4ptp4l15117-21iostat09:30:173
134491420,4ptp4l1420499cyclictest10:53:490
134491420,4ptp4l1420499cyclictest10:53:490
134491420,4ptp4l11988-21users10:30:290
134491420,4ptp4l0-21swapper/309:22:083
134491420,3ptp4l0-21swapper/107:17:391
1420699419,3cyclictest33-21ksoftirqd/211:10:482
1420699416,12cyclictest33-21ksoftirqd/212:00:002
14206994136,3cyclictest33-21ksoftirqd/209:50:042
14206994114,6cyclictest33-21ksoftirqd/207:38:282
14206994111,4cyclictest33-21ksoftirqd/207:50:142
134491410,5ptp4l8846-21/usr/sbin/munin08:05:230
134491410,5ptp4l0-21swapper/309:15:143
134491410,5ptp4l0-21swapper/110:35:131
134491410,5ptp4l0-21swapper/007:35:280
134491410,4ptp4l8116-21if_enp1s009:15:180
134491410,4ptp4l4955-21ls12:35:233
134491410,4ptp4l26431-21diskstats08:45:153
134491410,4ptp4l22516-21diskstats12:05:161
134491410,4ptp4l20335-21ntp_states08:30:253
134491410,4ptp4l13735-21memory11:45:210
134491410,4ptp4l12683-21hddtemp_smartct09:25:181
134491410,4ptp4l0-21swapper/309:55:233
134491410,4ptp4l0-21swapper/012:38:400
134491410,4ptp4l0-21swapper/012:30:270
134491410,4ptp4l0-21swapper/011:17:220
134491410,4ptp4l0-21swapper/010:43:170
134491410,4ptp4l0-21swapper/008:59:080
134491410,4ptp4l0-21swapper/008:46:050
134491410,3ptp4l19216-21apt-get08:30:140
134491410,2ptp4l0-21swapper/312:15:263
14206994035,3cyclictest33-21ksoftirqd/211:30:112
14206994035,2cyclictest33-21ksoftirqd/208:35:212
14206994012,3cyclictest33-21ksoftirqd/208:14:142
134491400,5ptp4l3420-21fschecks_count07:55:150
134491400,5ptp4l0-21swapper/310:35:063
134491400,5ptp4l0-21swapper/307:55:223
134491400,5ptp4l0-21swapper/010:25:230
134491400,5ptp4l0-21swapper/010:20:110
134491400,5ptp4l0-21swapper/010:00:180
134491400,5ptp4l0-21swapper/009:10:240
134491400,5ptp4l0-21swapper/007:15:160
134491400,4ptp4l6192-21/usr/sbin/munin09:10:183
134491400,4ptp4l0-21swapper/310:20:223
134491400,4ptp4l0-21swapper/310:05:283
134491400,4ptp4l0-21swapper/308:50:153
134491400,4ptp4l0-21swapper/211:28:312
134491400,4ptp4l0-21swapper/209:10:202
134491400,4ptp4l0-21swapper/012:10:020
134491400,4ptp4l0-21swapper/012:06:180
134491400,4ptp4l0-21swapper/011:20:160
134491400,4ptp4l0-21swapper/010:55:230
134491400,4ptp4l0-21swapper/010:39:490
134491400,4ptp4l0-21swapper/009:55:220
134491400,4ptp4l0-21swapper/009:47:460
134491400,4ptp4l0-21swapper/009:39:210
134491400,4ptp4l0-21swapper/009:20:420
134491400,4ptp4l0-21swapper/009:00:200
134491400,4ptp4l0-21swapper/008:53:300
134491400,4ptp4l0-21swapper/008:41:500
134491400,4ptp4l0-21swapper/007:23:310
134491400,3ptp4l22207-21apt-get12:05:133
134491400,3ptp4l20669-21ls09:40:293
134491400,3ptp4l20464-21ls10:50:193
134491400,3ptp4l20464-21ls10:50:183
134491400,3ptp4l0-21swapper/108:08:151
134491400,2ptp4l25561-21ls11:00:260
14206993934,3cyclictest33-21ksoftirqd/210:30:242
134491390,5ptp4l10488-21bc11:40:143
134491390,5ptp4l0-21swapper/011:50:250
134491390,4ptp4l18200-21users07:15:253
134491390,4ptp4l0-21swapper/312:13:513
134491390,4ptp4l0-21swapper/311:55:163
134491390,4ptp4l0-21swapper/311:05:013
134491390,4ptp4l0-21swapper/310:12:563
134491390,4ptp4l0-21swapper/309:35:163
134491390,4ptp4l0-21swapper/309:05:153
134491390,4ptp4l0-21swapper/308:15:183
134491390,4ptp4l0-21swapper/307:45:243
134491390,4ptp4l0-21swapper/307:35:213
134491390,4ptp4l0-21swapper/307:25:153
134491390,4ptp4l0-21swapper/112:20:151
134491390,4ptp4l0-21swapper/112:03:101
134491390,4ptp4l0-21swapper/111:19:481
134491390,4ptp4l0-21swapper/110:28:101
134491390,4ptp4l0-21swapper/109:55:571
134491390,4ptp4l0-21swapper/109:41:481
134491390,4ptp4l0-21swapper/109:35:121
134491390,4ptp4l0-21swapper/109:24:291
134491390,4ptp4l0-21swapper/109:05:141
134491390,4ptp4l0-21swapper/109:00:361
134491390,4ptp4l0-21swapper/108:45:341
134491390,4ptp4l0-21swapper/108:22:541
134491390,4ptp4l0-21swapper/108:22:541
134491390,4ptp4l0-21swapper/107:55:171
134491390,4ptp4l0-21swapper/107:47:551
134491390,4ptp4l0-21swapper/011:59:500
134491390,4ptp4l0-21swapper/009:28:510
134491390,4ptp4l0-21swapper/007:51:230
134491390,4ptp4l0-21swapper/007:27:000
134491390,4ptp4l0-21swapper/007:12:090
134491390,3ptp4l4144-21memory10:15:213
134491390,3ptp4l4144-21memory10:15:213
134491390,3ptp4l29700-21fschecks_count12:20:170
134491390,3ptp4l0-21swapper/111:57:511
134491390,3ptp4l0-21swapper/111:05:131
134491390,3ptp4l0-21swapper/110:55:061
134491390,3ptp4l0-21swapper/110:17:351
134491390,3ptp4l0-21swapper/110:17:351
134491390,2ptp4l20098-21iostat_ios10:50:181
134491390,2ptp4l20098-21iostat_ios10:50:181
134491380,4ptp4l11829-21mailstats11:40:281
134491380,4ptp4l0-21swapper/310:45:163
134491380,4ptp4l0-21swapper/310:40:293
134491380,4ptp4l0-21swapper/308:55:173
134491380,4ptp4l0-21swapper/307:20:143
134491380,4ptp4l0-21swapper/307:05:543
134491380,4ptp4l0-21swapper/112:33:091
134491380,4ptp4l0-21swapper/112:26:001
134491380,4ptp4l0-21swapper/112:15:451
134491380,4ptp4l0-21swapper/111:36:131
134491380,4ptp4l0-21swapper/111:12:531
134491380,4ptp4l0-21swapper/110:30:321
134491380,4ptp4l0-21swapper/110:10:351
134491380,4ptp4l0-21swapper/107:51:121
134491380,4ptp4l0-21swapper/107:30:311
134491380,4ptp4l0-21swapper/107:26:491
134491380,4ptp4l0-21swapper/107:13:091
134491380,3ptp4l25092-21ntp_states09:50:231
134491380,3ptp4l21499-21/usr/sbin/munin08:35:131
134491380,3ptp4l0-21swapper/311:47:203
134491380,3ptp4l0-21swapper/307:50:133
134491380,3ptp4l0-21swapper/112:35:071
134491380,3ptp4l0-21swapper/112:11:391
134491380,3ptp4l0-21swapper/111:20:171
134491380,3ptp4l0-21swapper/110:41:061
134491380,3ptp4l0-21swapper/110:00:201
134491380,3ptp4l0-21swapper/109:30:211
134491380,3ptp4l0-21swapper/109:15:021
134491380,3ptp4l0-21swapper/108:50:401
134491380,3ptp4l0-21swapper/108:25:411
134491380,3ptp4l0-21swapper/012:15:530
134491370,4ptp4l0-21swapper/111:30:111
134491370,4ptp4l0-21swapper/108:40:141
134491370,3ptp4l31719-21meminfo08:55:221
134491370,3ptp4l0-21swapper/111:00:111
134491370,3ptp4l0-21swapper/110:46:161
134491370,3ptp4l0-21swapper/110:21:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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