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2025-12-26 - 15:44
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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 Dec 26, 2025 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284632770,4sleep00-21swapper/009:40:190
2255699739,62cyclictest6448-21kworker/1:111:21:291
22555996733,6cyclictest9-21ksoftirqd/008:30:200
22555996634,6cyclictest9-21ksoftirqd/010:20:160
22555996634,6cyclictest9-21ksoftirqd/010:20:160
22558996410,50cyclictest30169-21cstates08:35:153
22555996433,6cyclictest9-21ksoftirqd/007:20:190
45742630,5sleep32255899cyclictest10:00:013
22555996330,3cyclictest9-21ksoftirqd/009:00:170
22556996111,48cyclictest30354-21kworker/1:007:40:491
22555996128,6cyclictest9-21ksoftirqd/012:20:270
22555996126,6cyclictest9-21ksoftirqd/010:29:590
22555996126,6cyclictest9-21ksoftirqd/010:29:590
22555996031,6cyclictest9-21ksoftirqd/010:00:230
22555996026,3cyclictest9-21ksoftirqd/011:16:420
22555996026,3cyclictest9-21ksoftirqd/011:16:420
134491600,4ptp4l0-21swapper/110:35:191
22555995929,4cyclictest9-21ksoftirqd/008:37:080
22555995928,5cyclictest9-21ksoftirqd/008:05:130
22555995928,4cyclictest9-21ksoftirqd/011:27:050
22555995927,6cyclictest9-21ksoftirqd/008:55:260
22555995927,4cyclictest9-21ksoftirqd/009:10:010
22555995926,3cyclictest9-21ksoftirqd/012:25:280
22555995924,5cyclictest9-21ksoftirqd/010:30:140
22555995920,6cyclictest9-21ksoftirqd/009:20:220
134491590,4ptp4l0-21swapper/211:25:302
134491590,15ptp4l0-21swapper/210:30:582
22555995829,7cyclictest9-21ksoftirqd/007:59:290
22555995828,4cyclictest9-21ksoftirqd/007:16:490
22555995828,3cyclictest9-21ksoftirqd/009:05:190
22555995827,4cyclictest9-21ksoftirqd/009:35:000
22555995827,4cyclictest9-21ksoftirqd/008:44:500
22555995827,3cyclictest9-21ksoftirqd/007:31:300
22555995823,5cyclictest9-21ksoftirqd/010:55:210
22555995730,6cyclictest9-21ksoftirqd/009:25:160
22555995730,6cyclictest9-21ksoftirqd/009:25:160
22555995729,4cyclictest9-21ksoftirqd/008:11:340
22555995727,7cyclictest9-21ksoftirqd/007:35:250
22555995727,4cyclictest9-21ksoftirqd/010:15:280
22555995727,3cyclictest9-21ksoftirqd/009:15:190
22555995727,3cyclictest9-21ksoftirqd/008:46:160
22555995726,4cyclictest9-21ksoftirqd/012:12:230
22555995726,3cyclictest9-21ksoftirqd/008:20:100
22555995725,4cyclictest9-21ksoftirqd/010:41:220
22555995725,4cyclictest9-21ksoftirqd/008:27:330
134491570,5ptp4l0-21swapper/208:16:092
134491570,4ptp4l0-21swapper/210:25:012
134491570,4ptp4l0-21swapper/210:25:012
134491570,4ptp4l0-21swapper/011:54:390
134491570,4ptp4l0-21swapper/011:22:130
134491570,3ptp4l0-21swapper/211:51:332
22555995631,7cyclictest9-21ksoftirqd/011:04:590
22555995630,3cyclictest9-21ksoftirqd/012:31:570
22555995627,3cyclictest9-21ksoftirqd/008:00:210
22555995626,4cyclictest9-21ksoftirqd/007:26:090
22555995625,4cyclictest9-21ksoftirqd/008:18:390
22555995623,4cyclictest9-21ksoftirqd/011:40:280
22555995620,4cyclictest9-21ksoftirqd/011:05:110
134491560,4ptp4l0-21swapper/010:39:550
22555995528,4cyclictest9-21ksoftirqd/011:55:230
22555995518,5cyclictest9-21ksoftirqd/012:00:200
134491550,4ptp4l0-21swapper/309:34:193
134491550,4ptp4l0-21swapper/212:04:472
134491550,4ptp4l0-21swapper/207:46:402
134491550,4ptp4l0-21swapper/207:31:062
134491550,3ptp4l0-21swapper/111:50:241
22555995426,7cyclictest9-21ksoftirqd/007:50:270
22555995426,6cyclictest9-21ksoftirqd/009:51:300
22555995425,3cyclictest9-21ksoftirqd/008:52:000
22555995421,5cyclictest9-21ksoftirqd/010:10:280
134491540,5ptp4l0-21swapper/212:38:062
134491540,4ptp4l0-21swapper/211:38:552
134491540,4ptp4l0-21swapper/209:03:492
134491540,3ptp4l0-21swapper/110:49:561
134491540,13ptp4l0-21swapper/212:32:452
2255899531,3cyclictest1441-21date08:40:293
22555995325,3cyclictest9-21ksoftirqd/011:45:250
22555995321,5cyclictest9-21ksoftirqd/007:10:180
22555995320,4cyclictest9-21ksoftirqd/010:45:190
134491530,5ptp4l0-21swapper/210:42:222
134491530,5ptp4l0-21swapper/107:06:261
134491530,4ptp4l0-21swapper/212:13:212
134491530,4ptp4l0-21swapper/208:57:462
134491530,4ptp4l0-21swapper/107:57:011
134491520,4ptp4l0-21swapper/210:36:112
134491520,4ptp4l0-21swapper/208:11:192
134491520,3ptp4l0-21swapper/009:55:420
22556995110,39cyclictest15294-21kworker/1:209:10:491
22555995135,3cyclictest9-21ksoftirqd/010:50:240
22555995123,6cyclictest9-21ksoftirqd/007:40:170
134491510,3ptp4l0-21swapper/010:07:310
134491510,11ptp4l0-21swapper/212:20:122
134491500,3ptp4l0-21swapper/007:49:240
134491500,10ptp4l20528-21df_inode07:05:163
2255699494,43cyclictest0-21swapper/109:52:491
2255599492,2cyclictest9-21ksoftirqd/011:14:590
2255599487,2cyclictest9-21ksoftirqd/011:35:000
2255599485,3cyclictest9-21ksoftirqd/009:35:170
2255599484,2cyclictest9-21ksoftirqd/012:15:270
2255599484,2cyclictest9-21ksoftirqd/012:15:270
2255599481,5cyclictest9-21ksoftirqd/009:45:170
2255699471,45cyclictest0-21swapper/109:02:191
2255599474,2cyclictest9-21ksoftirqd/011:35:180
134491470,10ptp4l0-21swapper/210:03:152
134491460,3ptp4l0-21swapper/310:37:323
134491460,12ptp4l0-21swapper/308:20:193
2255599454,6cyclictest121rcu_preempt12:35:180
2255599454,3cyclictest9-21ksoftirqd/012:10:000
134491450,6ptp4l0-21swapper/211:55:132
134491450,4ptp4l0-21swapper/310:34:493
134491450,4ptp4l0-21swapper/208:32:092
134491450,3ptp4l0-21swapper/208:51:292
2255899440,17cyclictest137891phc2sys09:23:473
134491440,5ptp4l0-21swapper/007:06:340
134491440,4ptp4l0-21swapper/207:41:322
134491440,3ptp4l0-21swapper/307:51:143
2255699435,8cyclictest134491ptp4l10:15:211
134491430,9ptp4l0-21swapper/210:46:182
134491430,5ptp4l0-21swapper/208:25:272
134491430,4ptp4l25318-21apt-get08:25:143
134491430,4ptp4l21164-21ls07:05:202
134491430,4ptp4l11448-21apt-get09:05:143
134491430,3ptp4l0-21swapper/311:28:383
134491430,3ptp4l0-21swapper/211:48:122
134491430,3ptp4l0-21swapper/211:40:182
134491430,3ptp4l0-21swapper/108:26:441
2255899421,15cyclictest134491ptp4l09:51:323
2255899420,16cyclictest137891phc2sys07:32:463
2255699422,38cyclictest0-21swapper/110:30:591
134491420,9ptp4l0-21swapper/311:24:143
134491420,9ptp4l0-21swapper/210:51:172
134491420,9ptp4l0-21swapper/210:13:322
134491420,9ptp4l0-21swapper/209:36:412
134491420,9ptp4l0-21swapper/207:13:052
134491420,8ptp4l0-21swapper/209:15:432
134491420,8ptp4l0-21swapper/207:37:322
134491420,5ptp4l2255899cyclictest09:00:263
134491420,4ptp4l241ktimersoftd/112:35:201
134491420,3ptp4l6101-21ls08:50:281
134491420,3ptp4l0-21swapper/211:20:202
134491420,10ptp4l0-21swapper/209:57:482
134491420,10ptp4l0-21swapper/207:58:332
46198410,4rtkit-daemon0-21swapper/210:22:252
46198410,4rtkit-daemon0-21swapper/210:22:252
2255699412,5cyclictest134691getstats08:55:271
134491410,9ptp4l0-21swapper/210:57:292
134491410,9ptp4l0-21swapper/209:25:392
134491410,9ptp4l0-21swapper/209:25:392
134491410,5ptp4l25314-21hddtemp_smartct07:15:161
134491410,5ptp4l19522-21/usr/sbin/munin11:40:221
134491410,5ptp4l1021-21irqstats11:00:201
134491410,5ptp4l0-21swapper/208:45:112
134491410,5ptp4l0-21swapper/111:30:111
134491410,4ptp4l953-21irqstats12:10:191
134491410,4ptp4l32429-21apt-get09:50:112
134491410,4ptp4l17732-21apt-get08:10:023
134491410,4ptp4l10775-21meminfo12:30:221
134491410,3ptp4l4702-21apt-get10:00:131
134491410,3ptp4l2255699cyclictest07:34:231
134491410,3ptp4l20693-21apt-get08:15:143
134491410,3ptp4l16355-21apt-get11:35:133
134491410,3ptp4l13913-21apt-get10:20:141
134491410,3ptp4l13913-21apt-get10:20:141
22558994032,5cyclictest41-21ksoftirqd/307:24:593
2255899402,2cyclictest0-21swapper/308:08:563
22557994036,3cyclictest33-21ksoftirqd/209:34:592
22557994026,11cyclictest33-21ksoftirqd/209:40:282
134491400,9ptp4l0-21swapper/211:06:152
134491400,5ptp4l0-21swapper/307:43:463
134491400,5ptp4l0-21swapper/307:16:533
134491400,5ptp4l0-21swapper/111:55:191
134491400,4ptp4l4223-21users11:05:261
134491400,4ptp4l26474-21memory09:35:221
134491400,4ptp4l24453-21ntp_states10:40:231
134491400,4ptp4l22956-21apt-get09:30:131
134491400,4ptp4l0-21swapper/310:05:263
134491400,4ptp4l0-21swapper/212:05:282
134491400,4ptp4l0-21swapper/211:33:182
134491400,4ptp4l0-21swapper/211:10:192
134491400,4ptp4l0-21swapper/211:03:192
134491400,4ptp4l0-21swapper/208:35:342
134491400,4ptp4l0-21swapper/207:50:272
134491400,4ptp4l0-21swapper/107:14:581
134491400,3ptp4l686-21irqstats08:40:202
134491400,3ptp4l27839-21apt-get09:40:151
134491400,3ptp4l18677-21apt-get11:40:143
134491400,3ptp4l18566-21df09:20:131
134491400,3ptp4l1799-21apt-get07:35:131
134491400,3ptp4l16603-21iostat09:15:191
134491400,3ptp4l0-21swapper/111:45:121
134491400,10ptp4l0-21swapper/110:08:141
2255899392,2cyclictest0-21swapper/310:55:273
2255899390,2cyclictest22589-21apt-get07:10:113
22557993934,3cyclictest33-21ksoftirqd/209:05:142
22557993919,10cyclictest33-21ksoftirqd/208:09:312
22556993912,24cyclictest32228-21basename09:50:011
134491390,5ptp4l0-21swapper/310:12:373
134491390,5ptp4l0-21swapper/210:16:032
134491390,5ptp4l0-21swapper/107:25:181
134491390,4ptp4l8374-21irqstats12:25:211
134491390,4ptp4l4850-21apt-get11:10:113
134491390,4ptp4l21774-21ntp_states09:25:241
134491390,4ptp4l21774-21ntp_states09:25:241
134491390,4ptp4l0-21swapper/312:15:223
134491390,4ptp4l0-21swapper/312:15:223
134491390,4ptp4l0-21swapper/311:55:153
134491390,4ptp4l0-21swapper/309:17:093
134491390,4ptp4l0-21swapper/308:53:083
134491390,4ptp4l0-21swapper/308:45:113
134491390,4ptp4l0-21swapper/308:03:303
134491390,4ptp4l0-21swapper/212:25:422
134491390,4ptp4l0-21swapper/207:21:242
134491390,4ptp4l0-21swapper/110:10:241
134491390,4ptp4l0-21swapper/109:05:131
134491390,4ptp4l0-21swapper/108:10:281
134491390,4ptp4l0-21swapper/107:50:161
134491390,4ptp4l0-21swapper/107:20:191
134491390,3ptp4l30843-21iostat10:55:171
134491390,3ptp4l30798-21iostat12:05:161
134491390,3ptp4l27940-21apt-get12:00:103
134491390,3ptp4l2482-21apt-get12:15:111
134491390,3ptp4l2482-21apt-get12:15:111
134491390,3ptp4l16419-21apt-get10:25:111
134491390,3ptp4l16419-21apt-get10:25:111
134491390,3ptp4l14327-21memory08:00:211
134491390,2ptp4l2548-21apt-get11:05:103
2255899383,30cyclictest5020-21apt-get12:20:133
22558993832,3cyclictest41-21ksoftirqd/309:30:003
22558993832,3cyclictest41-21ksoftirqd/309:30:003
22557993834,3cyclictest33-21ksoftirqd/209:50:002
22557993832,3cyclictest33-21ksoftirqd/208:00:272
2255699387,29cyclictest6448-21kworker/1:111:25:091
134491380,5ptp4l0-21swapper/311:45:203
134491380,4ptp4l5921-21latency12:20:201
134491380,4ptp4l31504-21grep12:05:243
134491380,4ptp4l11984-21tune2fs10:15:173
134491380,4ptp4l0-21swapper/312:26:363
134491380,4ptp4l0-21swapper/309:49:143
134491380,4ptp4l0-21swapper/308:30:253
134491380,4ptp4l0-21swapper/307:28:253
134491380,4ptp4l0-21swapper/212:15:052
134491380,4ptp4l0-21swapper/212:15:042
134491380,4ptp4l0-21swapper/210:08:352
134491380,4ptp4l0-21swapper/209:13:302
134491380,4ptp4l0-21swapper/207:26:162
134491380,4ptp4l0-21swapper/112:00:121
134491380,4ptp4l0-21swapper/110:50:141
134491380,4ptp4l0-21swapper/109:56:281
134491380,4ptp4l0-21swapper/108:47:511
134491380,4ptp4l0-21swapper/108:40:561
134491380,4ptp4l0-21swapper/108:35:131
134491380,4ptp4l0-21swapper/108:30:521
134491380,4ptp4l0-21swapper/108:20:381
134491380,4ptp4l0-21swapper/108:16:051
134491380,4ptp4l0-21swapper/108:05:301
134491380,4ptp4l0-21swapper/107:45:201
134491380,3ptp4l10068-21df_abs12:30:163
134491380,3ptp4l0-21swapper/311:15:233
134491380,3ptp4l0-21swapper/311:15:233
134491380,3ptp4l0-21swapper/211:16:212
134491380,3ptp4l0-21swapper/211:16:212
134491380,3ptp4l0-21swapper/208:20:282
134491380,2ptp4l16776-21perl11:35:171
2255899373,28cyclictest23338-21apt-get10:40:143
134491370,4ptp4l0-21swapper/312:10:543
134491370,4ptp4l0-21swapper/310:46:203
134491370,4ptp4l0-21swapper/310:00:023
134491370,4ptp4l0-21swapper/308:58:203
134491370,4ptp4l0-21swapper/307:37:043
134491370,4ptp4l0-21swapper/207:16:552
134491370,4ptp4l0-21swapper/111:15:171
134491370,4ptp4l0-21swapper/111:15:161
134491370,3ptp4l0-21swapper/311:30:033
134491370,3ptp4l0-21swapper/310:25:593
134491370,3ptp4l0-21swapper/310:25:593
134491370,3ptp4l0-21swapper/309:35:553
134491370,3ptp4l0-21swapper/307:55:263
134491370,3ptp4l0-21swapper/209:24:052
134491360,4ptp4l0-21swapper/311:50:203
134491360,4ptp4l0-21swapper/310:24:593
134491360,4ptp4l0-21swapper/310:24:593
134491360,4ptp4l0-21swapper/309:11:253
134491360,3ptp4l0-21swapper/309:40:273
134491360,3ptp4l0-21swapper/111:10:161
2255899351,4cyclictest2318-21gnome-shell07:45:593
134491350,4ptp4l0-21swapper/312:35:323
134491350,3ptp4l0-21swapper/310:52:073
2255899301,2cyclictest32599-21apt-get11:00:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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