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2026-08-20 - 07:57
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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 376 highest latencies:
System rackdslot3.osadl.org (updated Thu Aug 20, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182472223196,18sleep00-21swapper/019:07:580
139491206171,23phc2sys0-21swapper/319:05:463
183062202168,23sleep20-21swapper/219:08:442
182432202169,22sleep10-21swapper/119:07:561
2592821810,5sleep21869799cyclictest20:30:202
2141221790,6sleep01869599cyclictest21:30:150
756521520,7sleep11869699cyclictest21:00:191
1588421350,7sleep11869699cyclictest20:10:171
1601621280,7sleep31869899cyclictest23:30:253
1601621280,7sleep31869899cyclictest23:30:253
488921250,6sleep21869799cyclictest23:10:142
18698996231,4cyclictest41-21ksoftirqd/323:15:253
18698996126,4cyclictest41-21ksoftirqd/322:00:013
18698996029,4cyclictest41-21ksoftirqd/323:50:003
18698995929,4cyclictest41-21ksoftirqd/321:45:003
18698995929,4cyclictest41-21ksoftirqd/320:55:233
18698995928,4cyclictest41-21ksoftirqd/319:15:213
18698995828,4cyclictest41-21ksoftirqd/322:50:003
18698995826,4cyclictest41-21ksoftirqd/320:20:233
18698995826,4cyclictest41-21ksoftirqd/319:40:223
18698995816,9cyclictest41-21ksoftirqd/320:50:273
18698995724,4cyclictest41-21ksoftirqd/321:25:283
18698995627,6cyclictest41-21ksoftirqd/323:25:123
18698995627,3cyclictest41-21ksoftirqd/322:05:253
18698995626,7cyclictest41-21ksoftirqd/322:50:263
18698995626,7cyclictest41-21ksoftirqd/319:45:223
18698995622,4cyclictest41-21ksoftirqd/319:25:003
18698995526,6cyclictest41-21ksoftirqd/300:05:253
18698995525,8cyclictest41-21ksoftirqd/320:25:263
18698995524,4cyclictest41-21ksoftirqd/323:15:003
18698995522,4cyclictest41-21ksoftirqd/320:45:003
18698995427,7cyclictest41-21ksoftirqd/320:00:233
18698995425,7cyclictest41-21ksoftirqd/322:10:193
18698995425,3cyclictest41-21ksoftirqd/323:35:223
18698995425,3cyclictest41-21ksoftirqd/323:35:223
18698995424,7cyclictest41-21ksoftirqd/300:25:013
18698995422,4cyclictest41-21ksoftirqd/300:35:003
18698995421,3cyclictest41-21ksoftirqd/300:15:013
18698995325,11cyclictest41-21ksoftirqd/323:55:193
18698995324,7cyclictest41-21ksoftirqd/321:05:013
18698995324,4cyclictest41-21ksoftirqd/323:20:223
18698995324,3cyclictest41-21ksoftirqd/319:10:193
18698995322,7cyclictest41-21ksoftirqd/321:15:003
18698995322,5cyclictest41-21ksoftirqd/320:35:143
18698995322,4cyclictest41-21ksoftirqd/321:35:263
18698995317,4cyclictest41-21ksoftirqd/319:34:593
18696995324,3cyclictest25-21ksoftirqd/120:25:001
18698995225,7cyclictest41-21ksoftirqd/323:45:003
18698995221,4cyclictest41-21ksoftirqd/322:00:143
18698995221,4cyclictest41-21ksoftirqd/322:00:143
18698995220,4cyclictest41-21ksoftirqd/300:25:173
18698995219,7cyclictest41-21ksoftirqd/300:15:223
18698995219,4cyclictest41-21ksoftirqd/320:30:233
18698995216,7cyclictest41-21ksoftirqd/320:15:273
18698995216,7cyclictest41-21ksoftirqd/320:15:273
18698995214,8cyclictest41-21ksoftirqd/300:35:123
18698995121,4cyclictest41-21ksoftirqd/322:30:153
18698995120,7cyclictest41-21ksoftirqd/322:20:163
18698995120,7cyclictest41-21ksoftirqd/322:15:133
18698995117,3cyclictest41-21ksoftirqd/323:10:013
18698995020,6cyclictest41-21ksoftirqd/322:25:123
18698995014,8cyclictest41-21ksoftirqd/323:55:003
18698995013,7cyclictest41-21ksoftirqd/300:05:003
18698994918,8cyclictest41-21ksoftirqd/321:30:133
18698994917,4cyclictest41-21ksoftirqd/319:55:113
18698994917,4cyclictest41-21ksoftirqd/319:35:193
1869899484,7cyclictest41-21ksoftirqd/320:05:253
18698994835,2cyclictest41-21ksoftirqd/320:45:183
18698994817,8cyclictest41-21ksoftirqd/321:05:223
1869899472,2cyclictest41-21ksoftirqd/321:55:003
18698994713,4cyclictest41-21ksoftirqd/321:20:163
18695994742,3cyclictest9-21ksoftirqd/021:24:590
18698994617,3cyclictest41-21ksoftirqd/322:57:453
18698994610,7cyclictest41-21ksoftirqd/322:35:153
1869899453,3cyclictest16033-21turbostat21:19:593
18698994514,10cyclictest41-21ksoftirqd/320:10:153
18698994510,8cyclictest41-21ksoftirqd/323:00:243
1869699455,5cyclictest25-21ksoftirqd/123:00:001
139391450,0ptp4l401ktimersoftd/322:40:113
18698994410,7cyclictest41-21ksoftirqd/319:55:003
1869599434,3cyclictest121rcu_preempt19:50:120
18698994236,3cyclictest41-21ksoftirqd/321:50:003
18695994111,5cyclictest9-21ksoftirqd/023:20:180
1869899393,2cyclictest28157-21taskset19:29:443
18697993934,3cyclictest33-21ksoftirqd/200:40:002
18696993933,3cyclictest3796-21irqrtprio22:00:201
18696993933,3cyclictest3796-21irqrtprio22:00:201
18695993934,3cyclictest9-21ksoftirqd/000:00:000
18696993834,2cyclictest25-21ksoftirqd/123:30:001
18696993833,3cyclictest25-21ksoftirqd/120:45:001
1869699383,2cyclictest121rcu_preempt19:50:191
18696993816,8cyclictest25-21ksoftirqd/123:55:191
18695993834,2cyclictest9-21ksoftirqd/020:35:010
18695993832,4cyclictest9-21ksoftirqd/023:40:000
18695993832,4cyclictest9-21ksoftirqd/023:40:000
18695993822,4cyclictest9-21ksoftirqd/023:30:140
18695993822,4cyclictest9-21ksoftirqd/023:30:140
18695993822,4cyclictest9-21ksoftirqd/023:15:150
18696993733,2cyclictest25-21ksoftirqd/119:50:001
18696993732,3cyclictest25-21ksoftirqd/123:05:001
18696993732,3cyclictest25-21ksoftirqd/121:30:001
18696993731,4cyclictest25-21ksoftirqd/100:16:161
18695993732,3cyclictest9-21ksoftirqd/023:10:000
18695993732,3cyclictest9-21ksoftirqd/021:50:190
18695993732,3cyclictest9-21ksoftirqd/019:59:590
18695993727,3cyclictest21564-21cat20:20:250
18695993725,3cyclictest9-21ksoftirqd/023:45:150
18695993722,5cyclictest9-21ksoftirqd/020:20:000
18695993722,5cyclictest9-21ksoftirqd/020:20:000
18695993722,4cyclictest9-21ksoftirqd/022:15:000
57898360,7rtkit-daemon0-21swapper/221:34:322
57898360,2rtkit-daemon577-21rtkit-daemon21:52:332
18697993631,3cyclictest33-21ksoftirqd/220:05:012
18697993630,4cyclictest33-21ksoftirqd/219:29:032
18697993630,4cyclictest33-21ksoftirqd/200:15:412
18696993631,3cyclictest25-21ksoftirqd/121:40:001
18696993631,3cyclictest25-21ksoftirqd/120:10:001
18696993631,3cyclictest25-21ksoftirqd/119:55:101
18696993631,3cyclictest25-21ksoftirqd/119:35:191
18696993631,3cyclictest25-21ksoftirqd/100:25:191
18696993630,4cyclictest25-21ksoftirqd/122:12:281
18696993630,4cyclictest25-21ksoftirqd/121:06:051
18696993630,4cyclictest25-21ksoftirqd/120:37:161
1869699361,3cyclictest121rcu_preempt22:25:271
1869599363,3cyclictest121rcu_preempt23:25:220
18695993632,3cyclictest9-21ksoftirqd/000:30:000
18695993632,2cyclictest9-21ksoftirqd/021:15:180
18695993631,3cyclictest9-21ksoftirqd/021:50:000
18695993631,3cyclictest9-21ksoftirqd/021:35:150
18695993630,3cyclictest9-21ksoftirqd/021:40:190
18695993623,3cyclictest9-21ksoftirqd/020:05:150
18695993622,3cyclictest9-21ksoftirqd/023:10:260
18695993622,3cyclictest9-21ksoftirqd/020:45:180
18695993621,3cyclictest9-21ksoftirqd/019:45:140
18697993529,4cyclictest33-21ksoftirqd/223:23:502
18697993529,4cyclictest33-21ksoftirqd/200:07:312
18696993530,3cyclictest25-21ksoftirqd/123:55:011
18696993530,3cyclictest25-21ksoftirqd/122:30:111
18696993530,3cyclictest25-21ksoftirqd/100:25:011
18696993529,4cyclictest25-21ksoftirqd/123:30:441
18696993529,4cyclictest25-21ksoftirqd/123:30:431
18696993529,4cyclictest25-21ksoftirqd/121:40:511
18696993529,4cyclictest25-21ksoftirqd/100:03:571
18696993529,3cyclictest25-21ksoftirqd/119:45:011
18696993529,3cyclictest25-21ksoftirqd/100:40:001
18696993520,4cyclictest25-21ksoftirqd/119:15:191
1869699350,2cyclictest121rcu_preempt20:00:291
18695993531,2cyclictest9-21ksoftirqd/019:15:180
18695993530,3cyclictest9-21ksoftirqd/020:50:180
18695993530,3cyclictest9-21ksoftirqd/019:35:200
18695993530,3cyclictest9-21ksoftirqd/000:15:150
18695993528,5cyclictest9-21ksoftirqd/022:03:330
18695993528,5cyclictest9-21ksoftirqd/022:03:330
18695993523,3cyclictest9-21ksoftirqd/022:35:190
18695993522,5cyclictest9-21ksoftirqd/000:40:000
18697993429,3cyclictest33-21ksoftirqd/200:05:002
18697993428,4cyclictest33-21ksoftirqd/223:32:122
18697993428,4cyclictest33-21ksoftirqd/223:32:122
18697993428,4cyclictest33-21ksoftirqd/219:48:352
18697993427,5cyclictest33-21ksoftirqd/222:33:152
18696993430,2cyclictest25-21ksoftirqd/121:30:191
18696993430,2cyclictest25-21ksoftirqd/119:24:591
18696993429,3cyclictest6498-21idleruntime-cro21:00:011
18696993429,3cyclictest25-21ksoftirqd/123:15:171
18696993429,3cyclictest25-21ksoftirqd/121:10:131
18696993429,3cyclictest25-21ksoftirqd/119:28:531
18696993429,3cyclictest25-21ksoftirqd/119:11:491
18696993428,4cyclictest25-21ksoftirqd/123:14:231
18696993428,4cyclictest25-21ksoftirqd/121:57:521
18696993428,4cyclictest25-21ksoftirqd/120:29:571
18696993428,3cyclictest25-21ksoftirqd/121:50:111
18696993420,3cyclictest25-21ksoftirqd/100:05:141
18696993419,6cyclictest25-21ksoftirqd/123:05:101
1869599344,3cyclictest29411-21irqrtprio00:00:220
18695993430,3cyclictest9-21ksoftirqd/023:55:000
18695993430,3cyclictest9-21ksoftirqd/000:05:210
18695993430,2cyclictest9-21ksoftirqd/021:05:180
18695993429,3cyclictest9-21ksoftirqd/023:05:000
18695993429,3cyclictest9-21ksoftirqd/021:55:190
18695993429,2cyclictest9-21ksoftirqd/022:45:200
18695993422,3cyclictest9-21ksoftirqd/019:30:140
18695993420,5cyclictest9-21ksoftirqd/020:40:010
18695993420,3cyclictest9-21ksoftirqd/023:40:180
18695993420,3cyclictest9-21ksoftirqd/022:55:000
18695993419,4cyclictest9-21ksoftirqd/021:10:190
1869599340,3cyclictest121rcu_preempt22:55:010
18697993328,3cyclictest33-21ksoftirqd/222:17:442
18697993328,3cyclictest33-21ksoftirqd/220:05:592
18697993327,4cyclictest33-21ksoftirqd/223:50:462
18697993327,4cyclictest33-21ksoftirqd/223:26:112
18697993327,4cyclictest33-21ksoftirqd/221:01:042
18697993327,4cyclictest33-21ksoftirqd/219:33:282
18697993327,3cyclictest33-21ksoftirqd/222:40:002
18696993329,2cyclictest25-21ksoftirqd/122:50:001
18696993328,3cyclictest25-21ksoftirqd/123:40:141
18696993328,3cyclictest25-21ksoftirqd/122:20:131
18696993328,3cyclictest25-21ksoftirqd/121:19:591
18696993327,4cyclictest25-21ksoftirqd/122:50:111
18696993327,4cyclictest25-21ksoftirqd/120:48:001
18695993329,2cyclictest9-21ksoftirqd/000:20:180
18695993327,4cyclictest9-21ksoftirqd/022:19:290
18695993327,4cyclictest9-21ksoftirqd/022:09:180
18695993327,4cyclictest9-21ksoftirqd/020:41:180
18695993327,4cyclictest9-21ksoftirqd/020:03:150
18695993327,3cyclictest9-21ksoftirqd/022:35:000
18695993318,4cyclictest9-21ksoftirqd/020:30:000
18695993317,5cyclictest9-21ksoftirqd/019:10:140
1869599330,2cyclictest121rcu_preempt20:10:190
18697993229,2cyclictest33-21ksoftirqd/220:45:122
18697993228,3cyclictest33-21ksoftirqd/200:22:232
18697993227,3cyclictest33-21ksoftirqd/223:45:362
18697993227,3cyclictest33-21ksoftirqd/223:42:282
18697993227,3cyclictest33-21ksoftirqd/221:45:012
18697993227,3cyclictest33-21ksoftirqd/221:19:592
18697993227,3cyclictest33-21ksoftirqd/220:20:262
18697993227,3cyclictest33-21ksoftirqd/219:50:182
18697993227,3cyclictest33-21ksoftirqd/219:35:362
18697993226,4cyclictest33-21ksoftirqd/222:49:122
18697993226,4cyclictest33-21ksoftirqd/221:11:122
18697993226,4cyclictest33-21ksoftirqd/219:42:462
18697993225,5cyclictest33-21ksoftirqd/222:23:532
18696993229,2cyclictest25-21ksoftirqd/120:50:251
18696993228,2cyclictest25-21ksoftirqd/120:15:231
18696993228,2cyclictest25-21ksoftirqd/120:15:231
18696993227,3cyclictest25-21ksoftirqd/122:45:001
18696993227,3cyclictest25-21ksoftirqd/120:35:001
18696993226,4cyclictest25-21ksoftirqd/123:22:291
18696993226,4cyclictest25-21ksoftirqd/122:35:361
18696993226,4cyclictest25-21ksoftirqd/122:18:181
18696993226,4cyclictest25-21ksoftirqd/121:20:141
18696993226,3cyclictest25-21ksoftirqd/119:30:111
18695993228,3cyclictest9-21ksoftirqd/019:20:020
18695993227,3cyclictest9-21ksoftirqd/021:25:130
18695993226,4cyclictest9-21ksoftirqd/020:58:300
18695993226,4cyclictest9-21ksoftirqd/000:12:460
1869599322,2cyclictest121rcu_preempt22:25:110
18695993218,3cyclictest9-21ksoftirqd/022:40:160
18695993218,3cyclictest9-21ksoftirqd/019:25:240
18697993127,3cyclictest33-21ksoftirqd/222:15:002
18697993126,3cyclictest33-21ksoftirqd/223:06:472
18697993126,3cyclictest33-21ksoftirqd/222:27:522
18697993126,3cyclictest33-21ksoftirqd/220:55:332
18697993126,3cyclictest33-21ksoftirqd/220:14:012
18697993126,3cyclictest33-21ksoftirqd/219:12:172
18697993126,3cyclictest33-21ksoftirqd/200:10:122
18697993125,4cyclictest33-21ksoftirqd/222:44:592
18697993125,4cyclictest33-21ksoftirqd/222:03:512
18697993125,4cyclictest33-21ksoftirqd/222:03:512
18697993125,4cyclictest33-21ksoftirqd/200:34:312
18696993125,4cyclictest25-21ksoftirqd/100:10:311
18696993125,3cyclictest25-21ksoftirqd/121:45:111
18696993117,3cyclictest25-21ksoftirqd/100:30:271
18695993127,2cyclictest9-21ksoftirqd/022:20:230
18697993026,3cyclictest33-21ksoftirqd/223:16:292
18697993025,3cyclictest33-21ksoftirqd/223:04:262
18697993025,3cyclictest33-21ksoftirqd/221:45:432
18697993025,3cyclictest33-21ksoftirqd/219:20:012
18697993024,4cyclictest33-21ksoftirqd/223:37:142
18697993024,4cyclictest33-21ksoftirqd/223:37:142
18697993024,4cyclictest33-21ksoftirqd/222:58:272
18697993024,4cyclictest33-21ksoftirqd/221:36:162
18697993024,4cyclictest33-21ksoftirqd/221:07:272
18697993024,4cyclictest33-21ksoftirqd/220:27:202
18697993024,4cyclictest33-21ksoftirqd/220:16:312
18697993024,4cyclictest33-21ksoftirqd/220:16:312
18697993024,4cyclictest33-21ksoftirqd/219:59:032
18697993023,4cyclictest18403-21cron21:24:592
1869699301,2cyclictest121rcu_preempt23:45:151
18695993026,2cyclictest9-21ksoftirqd/019:40:130
18695993025,3cyclictest9-21ksoftirqd/000:34:370
18695993016,5cyclictest9-21ksoftirqd/021:00:160
18697992924,3cyclictest33-21ksoftirqd/222:51:542
18697992924,3cyclictest33-21ksoftirqd/220:50:302
18697992923,4cyclictest33-21ksoftirqd/221:28:162
18697992923,4cyclictest33-21ksoftirqd/220:41:312
18697992923,4cyclictest33-21ksoftirqd/220:38:352
18697992918,9cyclictest33-21ksoftirqd/222:05:282
18696992925,3cyclictest25-21ksoftirqd/123:35:121
18696992925,3cyclictest25-21ksoftirqd/123:35:121
18696992923,4cyclictest25-21ksoftirqd/122:07:391
18697992823,3cyclictest33-21ksoftirqd/223:58:282
18697992722,3cyclictest33-21ksoftirqd/200:29:272
18697992621,3cyclictest33-21ksoftirqd/219:20:192
18697992520,3cyclictest33-21ksoftirqd/221:57:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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