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2026-06-25 - 06:50
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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 rackdslot1.osadl.org (updated Thu Jun 25, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1636321520,3sleep20-21swapper/222:45:002
134491700,5ptp4l14861-21awk20:20:280
13169996632,8cyclictest25-21ksoftirqd/120:45:141
13169996627,7cyclictest25-21ksoftirqd/123:40:011
134491650,19ptp4l0-21swapper/000:30:110
13171996528,6cyclictest41-21ksoftirqd/322:30:013
13169996528,4cyclictest25-21ksoftirqd/123:55:241
140042620,5sleep30-21swapper/320:20:193
134491620,4ptp4l11133-21diskstats20:15:160
13171996228,4cyclictest41-21ksoftirqd/319:35:013
13171996227,9cyclictest41-21ksoftirqd/321:40:153
13171996227,9cyclictest41-21ksoftirqd/320:25:173
13169996231,8cyclictest25-21ksoftirqd/121:10:001
13169996226,4cyclictest25-21ksoftirqd/121:55:291
134491610,4ptp4l0-21swapper/200:02:202
13171996131,9cyclictest41-21ksoftirqd/322:45:263
13169996130,8cyclictest25-21ksoftirqd/100:30:181
13169996125,8cyclictest25-21ksoftirqd/123:25:171
13169996120,4cyclictest25-21ksoftirqd/123:10:231
13171996027,8cyclictest41-21ksoftirqd/323:05:013
13171996026,8cyclictest41-21ksoftirqd/300:20:193
134491590,4ptp4l0-21swapper/220:20:172
13171995928,6cyclictest41-21ksoftirqd/300:10:133
13169995924,7cyclictest25-21ksoftirqd/123:30:261
13171995823,7cyclictest41-21ksoftirqd/320:15:193
13171995822,8cyclictest41-21ksoftirqd/321:25:023
13169995826,7cyclictest25-21ksoftirqd/123:50:151
13169995822,4cyclictest25-21ksoftirqd/122:50:221
134491570,4ptp4l0-21swapper/219:09:312
1317199574,8cyclictest26811-21idleruntime-cro19:40:013
13171995726,8cyclictest41-21ksoftirqd/322:00:173
1317199572,47cyclictest0-21swapper/321:35:423
13169995720,4cyclictest25-21ksoftirqd/121:25:011
13169995627,8cyclictest25-21ksoftirqd/119:25:141
13169995623,7cyclictest25-21ksoftirqd/120:45:001
13169995618,7cyclictest25-21ksoftirqd/119:40:241
134491550,3ptp4l0-21swapper/222:25:162
134491550,3ptp4l0-21swapper/120:35:161
1317199555,3cyclictest16209-21latency_hist22:45:003
1317199553,4cyclictest0-21swapper/321:15:263
1317199552,10cyclictest41-21ksoftirqd/321:55:013
1317199550,7cyclictest401ktimersoftd/320:40:283
1316999554,8cyclictest25-21ksoftirqd/120:15:281
13169995521,7cyclictest25-21ksoftirqd/120:50:281
134491540,4ptp4l0-21swapper/021:49:560
134491540,3ptp4l0-21swapper/120:55:221
1317199544,10cyclictest41-21ksoftirqd/300:40:003
13170995417,4cyclictest33-21ksoftirqd/200:00:002
1316999544,8cyclictest25-21ksoftirqd/123:05:011
13169995432,9cyclictest25-21ksoftirqd/120:25:001
1316999542,7cyclictest0-21swapper/123:20:231
134491530,5ptp4l0-21swapper/021:01:210
1317199535,8cyclictest41-21ksoftirqd/323:10:013
1317199532,7cyclictest0-21swapper/321:45:133
1316999535,8cyclictest25-21ksoftirqd/122:00:141
1316999534,7cyclictest25-21ksoftirqd/121:35:011
13169995325,8cyclictest25-21ksoftirqd/120:25:141
13169995324,7cyclictest25-21ksoftirqd/119:50:231
13168995332,5cyclictest9-21ksoftirqd/022:20:000
134491520,4ptp4l0-21swapper/021:23:490
134491520,4ptp4l0-21swapper/000:39:460
134491520,3ptp4l0-21swapper/222:59:412
1317199524,3cyclictest121rcu_preempt19:10:223
1317199523,6cyclictest0-21swapper/323:40:043
1317199522,32cyclictest0-21swapper/321:20:103
1317199522,10cyclictest41-21ksoftirqd/320:35:213
1316999527,7cyclictest441-21in:imuxsock23:50:001
1316999526,3cyclictest25-21ksoftirqd/120:10:241
1316999525,7cyclictest25-21ksoftirqd/119:25:001
1316999524,4cyclictest25-21ksoftirqd/123:40:191
1316999524,4cyclictest25-21ksoftirqd/121:45:141
13169995219,6cyclictest25-21ksoftirqd/120:07:481
13169995218,6cyclictest25-21ksoftirqd/100:10:431
134491510,4ptp4l0-21swapper/300:04:543
134491510,4ptp4l0-21swapper/019:36:590
1317199516,4cyclictest41-21ksoftirqd/320:10:153
1317199514,6cyclictest41-21ksoftirqd/300:30:143
1317199514,4cyclictest41-21ksoftirqd/320:55:113
1317199513,7cyclictest0-21swapper/300:05:203
1317199513,3cyclictest121rcu_preempt22:15:303
13171995130,4cyclictest41-21ksoftirqd/322:05:153
13171995126,6cyclictest41-21ksoftirqd/320:30:353
1317199512,28cyclictest0-21swapper/322:52:463
13171995120,7cyclictest41-21ksoftirqd/323:15:173
1316999515,8cyclictest25-21ksoftirqd/121:05:001
1316999515,7cyclictest25-21ksoftirqd/119:10:131
1316999513,7cyclictest25-21ksoftirqd/122:40:181
1316999513,10cyclictest25-21ksoftirqd/122:05:231
1316999510,7cyclictest25-21ksoftirqd/121:35:231
1316899512,4cyclictest9-21ksoftirqd/019:45:000
134491500,4ptp4l0-21swapper/223:17:212
134491500,4ptp4l0-21swapper/119:55:291
134491500,3ptp4l0-21swapper/223:24:572
134491500,3ptp4l0-21swapper/020:57:410
1317199505,6cyclictest41-21ksoftirqd/321:10:243
1317199504,2cyclictest121rcu_preempt19:30:003
1317199503,6cyclictest0-21swapper/323:55:153
1317199502,8cyclictest41-21ksoftirqd/323:45:183
1317199502,8cyclictest41-21ksoftirqd/319:15:253
1317199502,8cyclictest41-21ksoftirqd/319:15:253
1317199502,8cyclictest0-21swapper/300:28:513
1317199502,8cyclictest0-21swapper/300:28:513
1317199502,6cyclictest0-21swapper/322:35:173
13171995017,7cyclictest41-21ksoftirqd/320:05:193
1317199501,6cyclictest0-21swapper/321:05:113
1317199501,5cyclictest41-21ksoftirqd/320:00:133
1316999505,8cyclictest25-21ksoftirqd/121:20:221
1316999503,4cyclictest25-21ksoftirqd/123:15:221
1316999502,6cyclictest0-21swapper/122:20:191
13169995022,8cyclictest25-21ksoftirqd/119:15:131
13169995022,8cyclictest25-21ksoftirqd/119:15:131
134491490,4ptp4l0-21swapper/323:38:493
134491490,4ptp4l0-21swapper/222:48:442
134491490,4ptp4l0-21swapper/022:21:470
1317199494,9cyclictest41-21ksoftirqd/323:10:193
1317199494,3cyclictest41-21ksoftirqd/322:10:283
13171994934,7cyclictest41-21ksoftirqd/323:00:013
13171994920,8cyclictest41-21ksoftirqd/323:50:263
13171994914,7cyclictest41-21ksoftirqd/322:22:303
13170994913,4cyclictest33-21ksoftirqd/220:35:002
1316999496,7cyclictest25-21ksoftirqd/119:45:251
1316999494,3cyclictest25-21ksoftirqd/100:05:221
1316999492,10cyclictest25-21ksoftirqd/122:25:251
1316999491,8cyclictest25-21ksoftirqd/122:55:191
134491480,3ptp4l0-21swapper/021:14:580
134491480,10ptp4l12401-21unixbench_multi19:05:250
1317199485,2cyclictest121rcu_preempt19:48:313
13171994838,3cyclictest41-21ksoftirqd/321:55:003
1317199482,7cyclictest0-21swapper/300:15:243
13171994819,7cyclictest41-21ksoftirqd/323:24:323
1317099483,2cyclictest121rcu_preempt23:51:592
1317099483,2cyclictest121rcu_preempt23:31:592
1317099483,2cyclictest121rcu_preempt21:08:592
1316999485,9cyclictest25-21ksoftirqd/121:40:241
1316999485,6cyclictest25-21ksoftirqd/120:30:141
1316999485,2cyclictest25-21ksoftirqd/119:35:231
1316999484,8cyclictest25-21ksoftirqd/119:30:161
1316999483,7cyclictest25-21ksoftirqd/121:15:161
1316999483,3cyclictest121rcu_preempt22:20:001
134491470,4ptp4l0-21swapper/223:48:522
134491470,4ptp4l0-21swapper/020:38:240
134491470,3ptp4l0-21swapper/123:05:371
134491470,3ptp4l0-21swapper/019:59:570
134491470,2ptp4l0-21swapper/122:14:511
134491470,12ptp4l0-21swapper/319:06:133
134491470,12ptp4l0-21swapper/222:35:162
1317199476,2cyclictest41-21ksoftirqd/321:30:203
1317199475,3cyclictest41-21ksoftirqd/322:30:123
13171994729,8cyclictest41-21ksoftirqd/320:45:163
1317099472,2cyclictest121rcu_preempt20:46:592
1317099472,2cyclictest121rcu_preempt20:06:582
1317099472,2cyclictest121rcu_preempt19:24:582
13170994717,7cyclictest33-21ksoftirqd/221:10:192
1317099471,2cyclictest121rcu_preempt20:14:582
1316999475,2cyclictest25-21ksoftirqd/100:20:271
1316999473,2cyclictest121rcu_preempt22:38:591
13169994732,7cyclictest25-21ksoftirqd/122:45:171
1316999472,8cyclictest25-21ksoftirqd/120:00:181
1316999472,3cyclictest25-21ksoftirqd/100:35:271
1316999471,7cyclictest25-21ksoftirqd/121:10:201
134491460,4ptp4l0-21swapper/319:40:443
134491460,4ptp4l0-21swapper/022:35:090
1317199463,6cyclictest41-21ksoftirqd/321:00:163
1317199463,2cyclictest121rcu_preempt19:55:243
13170994640,3cyclictest33-21ksoftirqd/220:00:002
1317099462,2cyclictest121rcu_preempt21:45:192
1317099462,2cyclictest121rcu_preempt20:54:592
1317099462,2cyclictest121rcu_preempt19:30:582
13170994617,4cyclictest33-21ksoftirqd/219:48:322
13170994615,4cyclictest33-21ksoftirqd/200:30:242
13170994611,7cyclictest33-21ksoftirqd/221:29:482
13169994642,2cyclictest241ktimersoftd/121:50:191
13169994637,3cyclictest25-21ksoftirqd/100:25:131
13169994637,3cyclictest25-21ksoftirqd/100:25:121
13169994620,3cyclictest25-21ksoftirqd/122:33:341
1316899463,7cyclictest27715-21kworker/0:123:08:260
134491450,3ptp4l0-21swapper/022:12:030
1317099455,10cyclictest33-21ksoftirqd/222:00:202
13170994529,7cyclictest33-21ksoftirqd/221:52:432
13170994515,6cyclictest33-21ksoftirqd/219:27:102
13170994510,1cyclictest0-21swapper/223:04:402
1316999454,2cyclictest25-21ksoftirqd/100:00:211
1316999452,5cyclictest25-21ksoftirqd/100:15:121
1317199445,3cyclictest121rcu_preempt19:20:133
13171994440,2cyclictest401ktimersoftd/323:25:163
1317199442,8cyclictest0-21swapper/323:30:253
1317099441,6cyclictest121rcu_preempt20:02:372
13170994415,4cyclictest33-21ksoftirqd/223:29:492
13168994429,7cyclictest9-21ksoftirqd/019:30:180
134491430,9ptp4l0-21swapper/222:08:042
134491430,4ptp4l23941-21apt-get00:10:122
134491430,4ptp4l23652-21diskstats23:00:150
134491430,4ptp4l2318-21gnome-shell21:50:590
134491430,4ptp4l0-21swapper/021:32:350
1317199434,3cyclictest41-21ksoftirqd/320:50:183
1317099433,2cyclictest121rcu_preempt23:40:292
13170994332,3cyclictest33-21ksoftirqd/200:25:192
13170994332,3cyclictest33-21ksoftirqd/200:25:192
13170994331,4cyclictest33-21ksoftirqd/223:05:182
13170994323,11cyclictest33-21ksoftirqd/219:19:172
13170994323,11cyclictest33-21ksoftirqd/219:19:172
1317099432,2cyclictest121rcu_preempt20:40:252
1317099432,2cyclictest121rcu_preempt00:20:002
13170994310,7cyclictest33-21ksoftirqd/221:35:222
13168994338,3cyclictest9-21ksoftirqd/023:40:010
13168994338,2cyclictest9-21ksoftirqd/000:30:000
13168994338,2cyclictest9-21ksoftirqd/000:30:000
1316899432,3cyclictest121rcu_preempt22:00:250
1316899432,3cyclictest0-21swapper/023:45:000
134491420,5ptp4l0-21swapper/220:15:262
134491420,5ptp4l0-21swapper/019:10:190
134491420,4ptp4l29613-21ls23:10:260
134491420,4ptp4l25052-21ntp_states00:10:220
134491420,4ptp4l0-21swapper/223:35:122
134491420,4ptp4l0-21swapper/019:45:110
1317199422,6cyclictest0-21swapper/319:50:273
1317099424,6cyclictest121rcu_preempt19:36:262
1317099423,2cyclictest121rcu_preempt23:14:412
1317099423,10cyclictest33-21ksoftirqd/222:55:002
1317099422,2cyclictest121rcu_preempt22:17:002
1317099421,3cyclictest121rcu_preempt22:21:422
1317099420,2cyclictest121rcu_preempt21:23:422
13168994238,3cyclictest9-21ksoftirqd/022:00:010
13168994227,6cyclictest9-21ksoftirqd/021:40:000
13168994227,4cyclictest9-21ksoftirqd/000:20:130
13168994226,7cyclictest9-21ksoftirqd/023:19:260
1316899422,3cyclictest9-21ksoftirqd/020:28:000
134491410,9ptp4l0-21swapper/220:27:582
134491410,5ptp4l0-21swapper/221:00:122
134491410,5ptp4l0-21swapper/021:05:200
134491410,5ptp4l0-21swapper/020:30:230
134491410,4ptp4l21976-21meminfo22:55:200
134491410,4ptp4l0-21swapper/021:43:000
134491410,4ptp4l0-21swapper/000:18:120
134491410,3ptp4l9469-21apt-get22:30:110
134491410,3ptp4l13687-21ls23:45:270
13170994136,3cyclictest33-21ksoftirqd/221:20:002
13170994136,3cyclictest33-21ksoftirqd/200:40:012
13170994129,4cyclictest33-21ksoftirqd/200:05:212
13170994115,2cyclictest0-21swapper/221:44:342
1316899416,6cyclictest0-21swapper/023:25:350
134491400,5ptp4l25767-21irqstats20:45:200
134491400,4ptp4l32506-21irqstats19:50:190
134491400,4ptp4l14836-21df_inode23:50:140
134491400,4ptp4l0-21swapper/221:55:032
134491400,4ptp4l0-21swapper/220:58:122
134491400,4ptp4l0-21swapper/219:40:262
134491400,4ptp4l0-21swapper/022:27:020
134491400,4ptp4l0-21swapper/022:05:270
134491400,3ptp4l22483-21strings00:05:200
134491400,3ptp4l0-21swapper/222:34:412
13170994035,3cyclictest33-21ksoftirqd/219:10:452
1317099402,6cyclictest121rcu_preempt22:10:502
1317099400,2cyclictest121rcu_preempt21:32:422
13168994025,4cyclictest9-21ksoftirqd/022:40:140
13168994022,5cyclictest9-21ksoftirqd/021:15:210
134491390,4ptp4l3905-21sshd20:00:030
134491390,4ptp4l0-21swapper/220:36:422
134491390,4ptp4l0-21swapper/219:54:552
134491390,4ptp4l0-21swapper/119:05:181
134491390,4ptp4l0-21swapper/023:59:540
134491390,4ptp4l0-21swapper/023:24:180
134491390,4ptp4l0-21swapper/022:53:250
134491390,4ptp4l0-21swapper/019:26:250
134491390,4ptp4l0-21swapper/019:23:430
134491390,4ptp4l0-21swapper/019:15:590
134491390,4ptp4l0-21swapper/019:15:590
134491390,3ptp4l6230-21apt-get20:05:110
134491390,3ptp4l5623-21iostat23:30:170
134491390,3ptp4l22617-21apt-get20:40:120
134491390,3ptp4l11767-21iostat_ios21:25:170
134491390,3ptp4l0-21swapper/022:46:590
13170993934,3cyclictest33-21ksoftirqd/200:20:132
134491380,4ptp4l9091-21iostat20:10:180
134491380,3ptp4l27523-21diskstats20:50:150
134491380,3ptp4l0-21swapper/000:00:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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