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2026-09-05 - 20:10
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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 Sep 05, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
509021550,4sleep03030099cyclictest12:00:210
30300997028,8cyclictest9-21ksoftirqd/010:30:220
134491700,16ptp4l0-21swapper/211:10:202
30301996837,3cyclictest25-21ksoftirqd/108:10:001
134491680,20ptp4l13155-21ntp_states07:40:252
30301996719,6cyclictest25-21ksoftirqd/112:25:231
30300996735,3cyclictest9-21ksoftirqd/008:35:000
30300996733,4cyclictest9-21ksoftirqd/008:15:010
30301996634,3cyclictest25-21ksoftirqd/111:40:261
30300996630,10cyclictest9-21ksoftirqd/008:00:010
30300996630,10cyclictest9-21ksoftirqd/008:00:010
30301996531,4cyclictest25-21ksoftirqd/112:15:001
30300996534,4cyclictest9-21ksoftirqd/010:05:000
30301996434,4cyclictest25-21ksoftirqd/107:30:201
30301996424,3cyclictest25-21ksoftirqd/111:20:251
30300996426,9cyclictest9-21ksoftirqd/011:30:000
30300996426,9cyclictest9-21ksoftirqd/007:55:000
30301996333,4cyclictest25-21ksoftirqd/110:50:181
30301996333,4cyclictest25-21ksoftirqd/108:18:041
30300996331,4cyclictest9-21ksoftirqd/009:35:240
30301996231,3cyclictest25-21ksoftirqd/109:50:291
30301996230,3cyclictest25-21ksoftirqd/109:45:281
30301996229,4cyclictest25-21ksoftirqd/107:40:161
30301996228,4cyclictest25-21ksoftirqd/112:00:141
30301996225,10cyclictest25-21ksoftirqd/108:45:121
30300996230,9cyclictest9-21ksoftirqd/008:00:150
30300996230,9cyclictest9-21ksoftirqd/008:00:150
30300996229,4cyclictest9-21ksoftirqd/009:25:140
134491620,19ptp4l6750-21irqstats09:45:192
30301996133,3cyclictest25-21ksoftirqd/107:20:251
30301996131,4cyclictest25-21ksoftirqd/109:10:261
30300996132,3cyclictest9-21ksoftirqd/012:20:160
30300996131,4cyclictest9-21ksoftirqd/007:45:220
30300996130,3cyclictest9-21ksoftirqd/010:25:260
30300996130,3cyclictest9-21ksoftirqd/008:45:150
30300996128,4cyclictest9-21ksoftirqd/007:10:250
30300996124,9cyclictest9-21ksoftirqd/009:10:010
134491610,15ptp4l13654-21df_inode12:20:172
30301996031,4cyclictest25-21ksoftirqd/110:55:191
30301996031,3cyclictest25-21ksoftirqd/107:55:201
30301996031,3cyclictest25-21ksoftirqd/107:55:201
30301996030,3cyclictest25-21ksoftirqd/111:50:251
30301996029,3cyclictest25-21ksoftirqd/112:35:271
30301996028,4cyclictest25-21ksoftirqd/110:25:181
30301996027,4cyclictest25-21ksoftirqd/109:20:001
30300996031,4cyclictest9-21ksoftirqd/009:15:130
30300996030,3cyclictest9-21ksoftirqd/009:30:260
30300996029,4cyclictest9-21ksoftirqd/012:05:240
30300996029,3cyclictest9-21ksoftirqd/011:30:190
30300996027,3cyclictest9-21ksoftirqd/009:45:210
3030399599,10cyclictest19655-21sed07:55:193
3030399599,10cyclictest19655-21sed07:55:193
30301995931,4cyclictest25-21ksoftirqd/109:20:151
30301995930,4cyclictest25-21ksoftirqd/112:05:281
30301995929,3cyclictest25-21ksoftirqd/108:20:171
30301995926,4cyclictest25-21ksoftirqd/107:25:201
30300995925,2cyclictest9-21ksoftirqd/009:55:210
134491590,3ptp4l0-21swapper/211:25:202
30301995828,4cyclictest25-21ksoftirqd/109:45:011
30301995827,4cyclictest25-21ksoftirqd/107:35:191
30301995823,10cyclictest25-21ksoftirqd/111:04:591
30300995831,3cyclictest9-21ksoftirqd/011:45:130
30300995831,3cyclictest9-21ksoftirqd/011:45:130
30300995830,4cyclictest9-21ksoftirqd/012:15:250
30300995830,4cyclictest9-21ksoftirqd/012:15:240
30300995828,3cyclictest9-21ksoftirqd/011:55:250
30300995823,9cyclictest9-21ksoftirqd/007:35:150
134491580,4ptp4l0-21swapper/308:30:253
134491580,4ptp4l0-21swapper/207:50:172
134491580,4ptp4l0-21swapper/111:05:041
30301995728,3cyclictest25-21ksoftirqd/110:40:191
30301995725,4cyclictest25-21ksoftirqd/109:00:211
30301995724,5cyclictest25-21ksoftirqd/111:30:271
30301995712,7cyclictest25-21ksoftirqd/111:36:061
30300995728,4cyclictest9-21ksoftirqd/010:10:280
30300995727,4cyclictest9-21ksoftirqd/011:50:170
30300995726,9cyclictest9-21ksoftirqd/010:50:000
30300995723,5cyclictest9-21ksoftirqd/010:15:290
30300995711,9cyclictest9-21ksoftirqd/008:55:220
134491570,3ptp4l0-21swapper/008:08:310
30301995627,5cyclictest25-21ksoftirqd/111:46:021
30301995627,5cyclictest25-21ksoftirqd/111:46:011
30301995623,2cyclictest25-21ksoftirqd/107:52:081
30300995628,3cyclictest9-21ksoftirqd/012:30:290
30300995627,3cyclictest9-21ksoftirqd/010:20:280
30300995626,3cyclictest9-21ksoftirqd/011:05:180
134491560,4ptp4l0-21swapper/207:20:542
134491560,4ptp4l0-21swapper/107:05:171
134491560,3ptp4l0-21swapper/312:05:203
134491560,3ptp4l0-21swapper/211:55:152
134491560,3ptp4l0-21swapper/207:45:272
3030399557,10cyclictest0-21swapper/310:35:303
3030399554,12cyclictest32470-21sed11:50:183
30301995527,3cyclictest25-21ksoftirqd/111:15:181
30301995521,4cyclictest25-21ksoftirqd/108:55:021
30300995537,6cyclictest9-21ksoftirqd/009:25:000
30300995524,3cyclictest9-21ksoftirqd/010:50:210
30300995522,4cyclictest9-21ksoftirqd/009:10:220
30300995521,6cyclictest9-21ksoftirqd/012:25:240
30300995520,8cyclictest9-21ksoftirqd/011:25:020
134491550,3ptp4l0-21swapper/208:04:522
134491550,3ptp4l0-21swapper/208:04:522
134491550,2ptp4l0-21swapper/212:25:212
3030399543,10cyclictest9925-21df07:35:143
30301995425,4cyclictest25-21ksoftirqd/110:45:221
30301995425,4cyclictest25-21ksoftirqd/107:20:011
30301995424,3cyclictest25-21ksoftirqd/108:50:161
30301995420,4cyclictest25-21ksoftirqd/108:15:001
30300995442,3cyclictest9-21ksoftirqd/011:00:000
30300995433,3cyclictest9-21ksoftirqd/007:30:000
134491540,4ptp4l0-21swapper/212:10:582
134491540,4ptp4l0-21swapper/207:36:272
3030399539,8cyclictest0-21swapper/308:55:243
30301995326,3cyclictest25-21ksoftirqd/110:40:011
30301995323,4cyclictest25-21ksoftirqd/110:05:251
30301995323,3cyclictest25-21ksoftirqd/109:55:291
30301995322,3cyclictest25-21ksoftirqd/109:05:191
30300995328,9cyclictest9-21ksoftirqd/011:00:170
30300995322,9cyclictest9-21ksoftirqd/011:35:160
30300995316,4cyclictest9-21ksoftirqd/008:15:250
134491530,4ptp4l0-21swapper/208:22:032
3030399528,6cyclictest0-21swapper/309:00:153
3030399526,5cyclictest0-21swapper/310:40:263
3030399523,11cyclictest28500-21awk10:30:313
3030399521,16cyclictest0-21swapper/312:05:003
3030199527,9cyclictest25-21ksoftirqd/109:30:191
30301995235,5cyclictest25-21ksoftirqd/109:30:011
3030199522,38cyclictest0-21swapper/112:20:241
30301995223,4cyclictest25-21ksoftirqd/110:00:141
30301995223,4cyclictest25-21ksoftirqd/108:30:291
30301995223,3cyclictest25-21ksoftirqd/110:15:171
30301995222,3cyclictest25-21ksoftirqd/107:45:151
30301995221,4cyclictest25-21ksoftirqd/110:30:271
30301995217,7cyclictest25-21ksoftirqd/111:10:161
30300995235,4cyclictest9-21ksoftirqd/010:45:000
3030099522,9cyclictest9-21ksoftirqd/010:40:000
30300995228,2cyclictest9-21ksoftirqd/009:41:130
30300995225,4cyclictest9-21ksoftirqd/011:41:480
134491520,5ptp4l0-21swapper/007:09:100
134491520,3ptp4l0-21swapper/212:17:332
134491520,3ptp4l0-21swapper/212:17:322
3030399513,11cyclictest13411-21cpu11:10:143
3030399511,15cyclictest14326-21apt-get07:45:123
30301995123,8cyclictest25-21ksoftirqd/109:35:191
30301995121,4cyclictest25-21ksoftirqd/112:15:161
30301995121,4cyclictest25-21ksoftirqd/112:15:161
30301995120,3cyclictest25-21ksoftirqd/108:35:231
30301995119,2cyclictest25-21ksoftirqd/110:21:131
30300995132,3cyclictest9-21ksoftirqd/008:55:000
30300995119,3cyclictest9-21ksoftirqd/007:15:120
134491510,4ptp4l0-21swapper/211:44:192
134491510,4ptp4l0-21swapper/011:15:300
3030399509,6cyclictest0-21swapper/309:35:153
3030399508,6cyclictest0-21swapper/310:45:163
3030399508,13cyclictest0-21swapper/308:20:163
30301995020,4cyclictest25-21ksoftirqd/108:25:171
30300995028,11cyclictest9-21ksoftirqd/011:10:220
121072500,4sleep30-21swapper/308:50:003
3030399498,6cyclictest0-21swapper/311:40:273
3030399498,6cyclictest0-21swapper/310:10:173
3030399498,6cyclictest0-21swapper/309:15:143
3030399491,10cyclictest0-21swapper/311:15:283
30301994934,4cyclictest25-21ksoftirqd/110:10:181
30301994916,3cyclictest25-21ksoftirqd/111:25:251
30301994911,5cyclictest25-21ksoftirqd/111:55:161
30300994930,9cyclictest9-21ksoftirqd/008:40:000
134491490,4ptp4l0-21swapper/209:25:552
134491490,4ptp4l0-21swapper/208:41:402
134491490,2ptp4l0-21swapper/208:25:182
3030399488,6cyclictest0-21swapper/307:30:193
3030399488,12cyclictest0-21swapper/311:55:253
3030199483,2cyclictest121rcu_preempt08:03:141
3030199483,2cyclictest121rcu_preempt08:03:141
30300994840,2cyclictest9-21ksoftirqd/007:20:170
30300994833,3cyclictest9-21ksoftirqd/007:40:290
30300994824,9cyclictest9-21ksoftirqd/009:50:320
134491480,4ptp4l0-21swapper/211:33:122
134491480,4ptp4l0-21swapper/209:00:192
134491480,4ptp4l0-21swapper/008:42:020
134491480,3ptp4l321ktimersoftd/210:35:292
3030399478,6cyclictest0-21swapper/310:50:313
3030399477,6cyclictest0-21swapper/311:25:213
3030399472,8cyclictest25630-21apt-get08:10:013
3030399472,6cyclictest0-21swapper/311:08:583
30301994719,3cyclictest25-21ksoftirqd/107:10:151
30300994729,10cyclictest9-21ksoftirqd/008:25:170
134491470,4ptp4l0-21swapper/012:35:130
3030399468,10cyclictest0-21swapper/309:20:143
3030399467,11cyclictest0-21swapper/308:01:213
3030399467,11cyclictest0-21swapper/308:01:213
3030399462,9cyclictest0-21swapper/307:44:003
3030399462,6cyclictest0-21swapper/307:18:593
3030399462,11cyclictest0-21swapper/311:45:443
3030399462,11cyclictest0-21swapper/311:45:433
3030099466,3cyclictest0-21swapper/010:06:050
30300994631,4cyclictest9-21ksoftirqd/008:25:000
30300994614,9cyclictest9-21ksoftirqd/007:30:200
30301994531,4cyclictest25-21ksoftirqd/112:30:171
30301994528,7cyclictest25-21ksoftirqd/108:40:171
30300994530,4cyclictest9-21ksoftirqd/009:00:290
134491450,5ptp4l0-21swapper/310:00:263
134491450,4ptp4l2318-21gnome-shell08:07:592
134491450,3ptp4l0-21swapper/209:05:172
3030399440,6cyclictest134491ptp4l07:50:123
134491440,9ptp4l0-21swapper/211:37:352
134491440,4ptp4l0-21swapper/209:16:552
134491440,3ptp4l0-21swapper/212:39:012
3030399433,5cyclictest0-21swapper/312:20:263
3030099434,3cyclictest121rcu_preempt12:10:250
134491430,9ptp4l0-21swapper/208:33:242
134491430,7ptp4l422-21irqbalance12:05:272
134491430,4ptp4l26889-21apt-get10:30:152
134491430,4ptp4l19510-21ls11:20:273
134491430,4ptp4l0-21swapper/307:23:533
134491430,3ptp4l0-21swapper/210:48:212
134491430,3ptp4l0-21swapper/210:12:072
134491430,3ptp4l0-21swapper/209:53:282
3030399427,7cyclictest0-21swapper/312:15:183
3030399427,7cyclictest0-21swapper/312:15:183
3030399426,12cyclictest0-21swapper/309:51:453
134491420,9ptp4l0-21swapper/307:25:153
134491420,6ptp4l23526-21apt-get08:05:133
134491420,5ptp4l0-21swapper/310:05:123
134491420,5ptp4l0-21swapper/309:25:233
134491420,5ptp4l0-21swapper/308:35:253
134491420,5ptp4l0-21swapper/208:35:142
134491420,4ptp4l0-21swapper/209:59:102
134491420,3ptp4l15692-21apt-get11:15:142
134491420,10ptp4l0-21swapper/312:25:533
3030399414,11cyclictest0-21swapper/309:57:223
30302994135,4cyclictest33-21ksoftirqd/210:59:292
134491410,9ptp4l0-21swapper/211:48:322
134491410,9ptp4l0-21swapper/211:48:322
134491410,8ptp4l0-21swapper/210:29:142
134491410,5ptp4l0-21swapper/310:15:193
134491410,5ptp4l0-21swapper/208:50:292
134491410,4ptp4l23354-21ntp_states10:20:233
134491410,4ptp4l0-21swapper/308:44:353
134491410,3ptp4l7418-21apt-get07:30:122
134491410,3ptp4l24953-21apt-get11:35:133
134491410,3ptp4l0-21swapper/208:47:332
3030399405,10cyclictest0-21swapper/309:31:073
3030399403,8cyclictest6857-21memory09:45:213
134491400,5ptp4l32331-21/usr/sbin/munin11:50:172
134491400,5ptp4l0-21swapper/307:10:143
134491400,5ptp4l0-21swapper/212:00:202
134491400,5ptp4l0-21swapper/209:30:142
134491400,4ptp4l0-21swapper/308:25:213
134491400,4ptp4l0-21swapper/209:22:032
134491400,4ptp4l0-21swapper/209:12:582
134491400,3ptp4l8794-21apt-get11:00:102
134491400,3ptp4l18912-21apt-get07:55:132
134491400,3ptp4l18912-21apt-get07:55:132
30302993934,3cyclictest33-21ksoftirqd/207:25:042
134491390,5ptp4l2244-21sed09:35:202
134491390,5ptp4l19991-21hddtemp_smartct09:05:163
134491390,4ptp4l3595-21/usr/sbin/munin09:40:222
134491390,4ptp4l13162-21grep10:00:162
134491390,4ptp4l0-21swapper/312:33:093
134491390,4ptp4l0-21swapper/311:00:123
134491390,4ptp4l0-21swapper/310:55:293
134491390,4ptp4l0-21swapper/309:10:303
134491390,4ptp4l0-21swapper/308:50:143
134491390,4ptp4l0-21swapper/308:15:133
134491390,4ptp4l0-21swapper/212:30:132
134491390,4ptp4l0-21swapper/210:24:202
134491390,4ptp4l0-21swapper/210:09:322
134491390,4ptp4l0-21swapper/208:55:132
134491390,4ptp4l0-21swapper/208:10:172
134491390,3ptp4l623-21sshd10:40:252
134491390,3ptp4l5027-21irqstats10:50:212
134491390,3ptp4l3918-21diskstats09:40:163
134491390,3ptp4l0-21swapper/208:17:012
134491380,5ptp4l0-21swapper/311:30:123
134491380,4ptp4l0-21swapper/312:10:133
134491380,4ptp4l0-21swapper/310:25:143
134491380,4ptp4l0-21swapper/211:06:262
134491380,4ptp4l0-21swapper/210:16:532
134491380,4ptp4l0-21swapper/207:15:142
134491380,4ptp4l0-21swapper/207:10:582
134491380,3ptp4l0-21swapper/211:22:552
134491370,3ptp4l0-21swapper/312:35:113
46198310,4rtkit-daemon0-21swapper/307:07:013
279762254,12sleep227973-21apt-get07:05:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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