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2025-11-24 - 17:17
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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 Mon Nov 24, 2025 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2125821520,6sleep22797399cyclictest10:20:222
252092700,6sleep02797199cyclictest11:40:140
2847191680,3ptp4l0-21swapper/209:30:202
2847191640,5ptp4l0-21swapper/210:50:122
183852630,2sleep218390-21needreboot09:05:242
2797499626,18cyclictest2847191ptp4l10:00:203
2797499626,18cyclictest2847191ptp4l10:00:203
2847191610,5ptp4l0-21swapper/107:06:171
2847191610,4ptp4l0-21swapper/208:28:372
2847191610,4ptp4l0-21swapper/012:35:050
2847191600,4ptp4l0-21swapper/210:12:522
2847191600,4ptp4l0-21swapper/209:17:482
2847191590,5ptp4l0-21swapper/209:56:072
2847191590,5ptp4l0-21swapper/009:30:560
2847191590,5ptp4l0-21swapper/008:40:040
2847191590,4ptp4l0-21swapper/209:50:182
2847191590,4ptp4l0-21swapper/209:41:112
2847191590,3ptp4l0-21swapper/212:05:042
2847191590,3ptp4l0-21swapper/207:57:582
2847191580,4ptp4l0-21swapper/210:05:362
2847191580,4ptp4l0-21swapper/108:57:071
2847191580,3ptp4l0-21swapper/208:33:232
2847191570,4ptp4l0-21swapper/212:24:512
2847191570,4ptp4l0-21swapper/211:20:162
2847191570,4ptp4l0-21swapper/211:15:112
2847191570,4ptp4l0-21swapper/210:30:462
2847191570,4ptp4l0-21swapper/207:34:462
2847191570,4ptp4l0-21swapper/109:15:181
2847191570,4ptp4l0-21swapper/007:20:210
2847191560,4ptp4l0-21swapper/211:25:212
2847191560,4ptp4l0-21swapper/210:15:182
2847191560,4ptp4l0-21swapper/210:00:472
2847191560,4ptp4l0-21swapper/210:00:472
2847191560,3ptp4l0-21swapper/309:32:043
2847191560,3ptp4l0-21swapper/209:49:302
2847191560,3ptp4l0-21swapper/208:53:282
2847191550,5ptp4l0-21swapper/009:18:010
2847191550,4ptp4l0-21swapper/212:37:322
2847191550,4ptp4l0-21swapper/212:00:202
2847191550,4ptp4l0-21swapper/210:29:512
2847191550,4ptp4l0-21swapper/209:14:102
2847191550,4ptp4l0-21swapper/208:20:472
2847191550,4ptp4l0-21swapper/207:52:072
2847191550,4ptp4l0-21swapper/010:47:440
2847191550,3ptp4l0-21swapper/211:30:152
2847191550,3ptp4l0-21swapper/009:56:210
2847191540,4ptp4l0-21swapper/212:32:292
2847191540,4ptp4l0-21swapper/211:11:172
2847191540,4ptp4l0-21swapper/211:11:172
2847191540,4ptp4l0-21swapper/207:20:532
2847191540,3ptp4l0-21swapper/311:26:363
2847191540,3ptp4l0-21swapper/309:45:133
2797299546,9cyclictest25-21ksoftirqd/108:40:001
2847191530,4ptp4l0-21swapper/212:18:262
2847191530,4ptp4l0-21swapper/208:58:172
2847191530,4ptp4l0-21swapper/207:25:112
2847191530,4ptp4l0-21swapper/011:08:400
2847191530,4ptp4l0-21swapper/008:20:010
2847191520,5ptp4l0-21swapper/007:07:350
2847191520,4ptp4l0-21swapper/211:36:212
2847191520,4ptp4l0-21swapper/008:53:310
2847191520,3ptp4l0-21swapper/207:42:072
2847191520,3ptp4l0-21swapper/008:06:140
2847191510,4ptp4l0-21swapper/210:39:392
2847191510,4ptp4l0-21swapper/011:26:270
2847191510,3ptp4l0-21swapper/210:55:292
2847191510,11ptp4l0-21swapper/007:40:250
2847191500,4ptp4l0-21swapper/011:22:550
2847191500,4ptp4l0-21swapper/009:45:240
2847191490,4ptp4l0-21swapper/210:41:592
2847191490,4ptp4l0-21swapper/209:03:032
2847191490,3ptp4l0-21swapper/211:50:202
2847191490,3ptp4l0-21swapper/208:11:562
2847191490,3ptp4l0-21swapper/207:48:232
2847191480,4ptp4l0-21swapper/207:13:232
2847191480,3ptp4l0-21swapper/008:00:510
2847191480,11ptp4l0-21swapper/011:55:220
2847191470,9ptp4l0-21swapper/010:21:250
2847191470,4ptp4l0-21swapper/209:38:372
2847191470,3ptp4l0-21swapper/310:06:363
2847191470,3ptp4l0-21swapper/211:40:152
2847191470,11ptp4l0-21swapper/311:50:233
2847191460,7ptp4l0-21swapper/208:04:392
2847191460,4ptp4l0-21swapper/308:40:403
2847191460,4ptp4l0-21swapper/007:18:190
189982460,4sleep30-21swapper/308:00:143
2847191450,9ptp4l0-21swapper/011:45:440
2847191450,4ptp4l31466-21apt-get09:35:133
2847191450,4ptp4l11696-21iostat11:10:201
2847191450,4ptp4l11696-21iostat11:10:201
2847191450,4ptp4l0-21swapper/311:05:003
2847191450,4ptp4l0-21swapper/211:03:202
2847191450,4ptp4l0-21swapper/007:55:490
2847191450,3ptp4l24126-21ls11:35:260
2847191450,11ptp4l0-21swapper/209:26:562
2847191440,9ptp4l1293-21snmpd09:26:500
2847191440,9ptp4l0-21swapper/311:47:163
2847191440,4ptp4l8806-21apt-get11:05:143
2847191440,4ptp4l4166-21apt-get10:55:123
2847191440,4ptp4l12496-21apt-get08:55:133
2847191440,4ptp4l0-21swapper/111:39:581
2847191440,4ptp4l0-21swapper/109:57:451
2847191440,3ptp4l0-21swapper/109:48:411
2847191430,5ptp4l0-21swapper/309:05:213
2847191430,4ptp4l7302-21apt-get07:35:143
2847191430,4ptp4l2471-21memory09:40:211
2847191430,4ptp4l20689-21df_inode11:30:140
2847191430,4ptp4l17911-21apt-get10:15:103
2847191430,4ptp4l11487-21apt-get12:20:123
2847191430,3ptp4l0-21swapper/309:51:273
2847191430,3ptp4l0-21swapper/309:24:433
2847191420,6ptp4l17300-21open_inodes12:30:230
2847191420,5ptp4l0-21swapper/311:55:173
2847191420,5ptp4l0-21swapper/309:25:003
2847191420,5ptp4l0-21swapper/208:40:152
2847191420,5ptp4l0-21swapper/012:15:190
2847191420,5ptp4l0-21swapper/008:25:130
2847191420,5ptp4l0-21swapper/007:35:200
2847191420,5ptp4l0-21swapper/007:13:350
2847191420,4ptp4l14972-21ntp_states12:25:242
2847191420,4ptp4l14972-21ntp_states12:25:242
2847191420,4ptp4l14246-21apt-get07:50:143
2847191420,4ptp4l0-21swapper/307:33:333
2847191420,4ptp4l0-21swapper/211:46:312
2847191420,4ptp4l0-21swapper/208:08:092
2847191420,4ptp4l0-21swapper/011:19:320
2847191420,4ptp4l0-21swapper/010:29:260
2847191420,4ptp4l0-21swapper/010:19:510
2847191420,4ptp4l0-21swapper/009:43:490
2847191420,4ptp4l0-21swapper/009:14:580
2847191420,4ptp4l0-21swapper/008:55:580
2847191420,3ptp4l5901-21ls12:05:273
2847191420,3ptp4l2679-21apt-get07:25:143
2847191420,3ptp4l25022-21apt-get11:40:133
2847191420,3ptp4l22560-21apt-get10:25:123
2847191420,3ptp4l16792-21ls11:20:213
2847191420,3ptp4l14965-21ntp_states12:25:230
2847191420,3ptp4l14965-21ntp_states12:25:230
2847191420,3ptp4l1444-21apt-get09:40:133
2847191420,3ptp4l0-21swapper/312:33:383
2847191420,3ptp4l0-21swapper/308:22:283
2847191420,3ptp4l0-21swapper/208:47:162
2847191410,5ptp4l0-21swapper/312:15:143
2847191410,5ptp4l0-21swapper/310:35:253
2847191410,5ptp4l0-21swapper/012:20:100
2847191410,4ptp4l0-21swapper/312:04:003
2847191410,4ptp4l0-21swapper/311:35:283
2847191410,4ptp4l0-21swapper/211:05:542
2847191410,4ptp4l0-21swapper/208:38:432
2847191410,4ptp4l0-21swapper/207:35:122
2847191410,4ptp4l0-21swapper/112:25:441
2847191410,4ptp4l0-21swapper/112:25:441
2847191410,4ptp4l0-21swapper/109:13:241
2847191410,4ptp4l0-21swapper/108:20:161
2847191410,4ptp4l0-21swapper/012:11:280
2847191410,4ptp4l0-21swapper/012:05:150
2847191410,4ptp4l0-21swapper/012:00:140
2847191410,4ptp4l0-21swapper/011:50:520
2847191410,4ptp4l0-21swapper/011:10:160
2847191410,4ptp4l0-21swapper/011:10:160
2847191410,4ptp4l0-21swapper/011:03:290
2847191410,4ptp4l0-21swapper/010:55:100
2847191410,4ptp4l0-21swapper/010:50:100
2847191410,4ptp4l0-21swapper/010:41:010
2847191410,4ptp4l0-21swapper/010:31:520
2847191410,4ptp4l0-21swapper/010:05:480
2847191410,4ptp4l0-21swapper/010:01:530
2847191410,4ptp4l0-21swapper/010:01:530
2847191410,4ptp4l0-21swapper/009:50:180
2847191410,4ptp4l0-21swapper/009:35:320
2847191410,4ptp4l0-21swapper/009:20:540
2847191410,4ptp4l0-21swapper/009:07:020
2847191410,4ptp4l0-21swapper/009:00:550
2847191410,4ptp4l0-21swapper/008:11:090
2847191410,3ptp4l8927-21/usr/sbin/munin12:15:101
2847191410,3ptp4l8438-21apt-get09:55:133
2847191410,3ptp4l26003-21ntp_states10:30:243
2847191410,3ptp4l16355-21memory10:10:230
2847191410,3ptp4l0-21swapper/111:07:351
2847191410,2ptp4l6634-21apt-get12:10:162
2847191400,5ptp4l25286-21irqrtprio09:20:192
2847191400,5ptp4l0-21swapper/310:12:113
2847191400,5ptp4l0-21swapper/308:11:203
2847191400,5ptp4l0-21swapper/007:46:340
2847191400,4ptp4l9614-21/usr/sbin/munin07:40:163
2847191400,4ptp4l13781-21grep11:15:153
2847191400,4ptp4l0-21swapper/312:35:293
2847191400,4ptp4l0-21swapper/312:25:543
2847191400,4ptp4l0-21swapper/312:25:543
2847191400,4ptp4l0-21swapper/310:41:243
2847191400,4ptp4l0-21swapper/310:20:063
2847191400,4ptp4l0-21swapper/309:15:193
2847191400,4ptp4l0-21swapper/309:10:193
2847191400,4ptp4l0-21swapper/308:50:103
2847191400,4ptp4l0-21swapper/308:26:413
2847191400,4ptp4l0-21swapper/308:15:203
2847191400,4ptp4l0-21swapper/307:15:213
2847191400,4ptp4l0-21swapper/211:57:022
2847191400,4ptp4l0-21swapper/210:45:152
2847191400,4ptp4l0-21swapper/207:16:572
2847191400,4ptp4l0-21swapper/112:30:111
2847191400,4ptp4l0-21swapper/111:56:401
2847191400,4ptp4l0-21swapper/111:54:321
2847191400,4ptp4l0-21swapper/111:18:141
2847191400,4ptp4l0-21swapper/109:00:231
2847191400,4ptp4l0-21swapper/108:12:441
2847191400,4ptp4l0-21swapper/010:35:050
2847191400,4ptp4l0-21swapper/008:46:550
2847191400,4ptp4l0-21swapper/008:36:290
2847191400,4ptp4l0-21swapper/008:31:270
2847191400,4ptp4l0-21swapper/008:16:020
2847191400,4ptp4l0-21swapper/007:50:190
2847191400,4ptp4l0-21swapper/007:31:150
2847191400,4ptp4l0-21swapper/007:29:330
2847191400,3ptp4l590-21ntp_states10:45:243
2847191400,3ptp4l21202-21apt-get08:05:143
2847191400,3ptp4l19466-21iostat_ios08:00:181
2847191400,3ptp4l11939-21apt-get07:45:123
2847191400,3ptp4l0-21swapper/310:50:223
2847191400,3ptp4l0-21swapper/110:03:151
2847191400,3ptp4l0-21swapper/110:03:151
2847191400,3ptp4l0-21swapper/108:15:191
2847191400,3ptp4l0-21swapper/107:12:041
2847191390,4ptp4l16860-21ntpq11:20:221
2847191390,4ptp4l0-21swapper/312:10:023
2847191390,4ptp4l0-21swapper/311:10:183
2847191390,4ptp4l0-21swapper/311:10:183
2847191390,4ptp4l0-21swapper/309:00:243
2847191390,4ptp4l0-21swapper/308:47:073
2847191390,4ptp4l0-21swapper/308:36:493
2847191390,4ptp4l0-21swapper/308:33:363
2847191390,4ptp4l0-21swapper/208:15:342
2847191390,4ptp4l0-21swapper/110:50:481
2847191390,4ptp4l0-21swapper/107:42:131
2847191390,3ptp4l0-21swapper/311:30:103
2847191390,3ptp4l0-21swapper/112:35:571
2847191390,3ptp4l0-21swapper/112:13:171
2847191390,3ptp4l0-21swapper/111:45:401
2847191390,3ptp4l0-21swapper/110:55:111
2847191390,3ptp4l0-21swapper/109:31:061
2847191390,3ptp4l0-21swapper/107:15:201
2847191390,10ptp4l0-21swapper/307:21:273
27972993925,3cyclictest25-21ksoftirqd/107:25:241
27972993924,3cyclictest25-21ksoftirqd/110:40:161
27972993924,3cyclictest25-21ksoftirqd/107:35:231
27972993923,4cyclictest25-21ksoftirqd/111:00:201
2797299392,2cyclictest121rcu_preempt08:30:211
2847191380,4ptp4l6038-21sort08:40:201
2847191380,4ptp4l2797499cyclictest07:10:163
2847191380,4ptp4l0-21swapper/307:56:013
2847191380,3ptp4l0-21swapper/112:21:341
2847191380,3ptp4l0-21swapper/111:43:271
2847191380,3ptp4l0-21swapper/110:12:331
2847191380,3ptp4l0-21swapper/110:05:491
2847191380,3ptp4l0-21swapper/109:38:431
2847191380,3ptp4l0-21swapper/109:25:111
2847191380,3ptp4l0-21swapper/109:21:301
2847191380,3ptp4l0-21swapper/108:09:451
2847191380,3ptp4l0-21swapper/107:46:571
2847191380,3ptp4l0-21swapper/107:30:261
2847191380,3ptp4l0-21swapper/107:21:151
27972993832,3cyclictest25-21ksoftirqd/107:55:141
27972993823,4cyclictest25-21ksoftirqd/110:20:211
27972993823,3cyclictest25-21ksoftirqd/110:30:141
27972993823,3cyclictest25-21ksoftirqd/108:45:191
27972993822,4cyclictest25-21ksoftirqd/108:25:161
2847191370,3ptp4l0-21swapper/112:08:051
2847191370,3ptp4l0-21swapper/111:30:271
2847191370,3ptp4l0-21swapper/111:29:241
2847191370,3ptp4l0-21swapper/110:45:221
2847191370,3ptp4l0-21swapper/109:05:281
2847191360,3ptp4l22546-21/usr/sbin/munin10:25:171
2847191360,3ptp4l0-21swapper/112:01:101
27972993622,3cyclictest25-21ksoftirqd/110:35:161
27972993621,4cyclictest25-21ksoftirqd/109:50:301
2847191350,3ptp4l0-21swapper/108:53:021
27972993531,2cyclictest25-21ksoftirqd/107:55:011
273652326,17sleep31778-21gnome-shell07:05:593
27972993117,4cyclictest25-21ksoftirqd/110:15:151
2849691223,11phc2sys25629-21apt-get07:05:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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