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2026-03-17 - 14:31
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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 rackdslot3.osadl.org (updated Tue Mar 17, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4272204171,22sleep00-21swapper/019:06:010
7432203170,22sleep30-21swapper/319:09:333
4292201169,21sleep20-21swapper/219:06:032
6762200168,21sleep10-21swapper/119:08:471
1521921710,4sleep2107399cyclictest23:00:142
2317121490,2sleep30-21swapper/322:10:013
1120921320,4sleep3107499cyclictest23:55:343
1393911230,1ptp4l26327-21interrupts22:15:183
1072997116,53cyclictest0-21swapper/122:25:331
139391640,1ptp4l401ktimersoftd/322:32:043
280872610,4sleep3107499cyclictest22:20:123
1073996127,4cyclictest33-21ksoftirqd/219:25:012
1073996029,6cyclictest33-21ksoftirqd/223:55:012
107299600,58cyclictest0-21swapper/122:36:531
1073995826,4cyclictest33-21ksoftirqd/222:50:192
139391570,1ptp4l401ktimersoftd/320:57:443
8532560,5sleep233-21ksoftirqd/221:20:252
58892560,2sleep20-21swapper/220:25:172
1073995626,7cyclictest33-21ksoftirqd/219:45:002
1073995625,4cyclictest33-21ksoftirqd/221:25:222
1073995625,3cyclictest33-21ksoftirqd/219:30:262
1073995519,17cyclictest33-21ksoftirqd/200:15:002
1073995427,6cyclictest33-21ksoftirqd/220:40:142
1073995425,7cyclictest33-21ksoftirqd/222:20:122
1073995418,6cyclictest33-21ksoftirqd/223:45:002
1073995324,3cyclictest33-21ksoftirqd/220:10:232
1073995322,4cyclictest33-21ksoftirqd/200:25:132
1073995318,4cyclictest33-21ksoftirqd/200:35:232
1073995317,4cyclictest33-21ksoftirqd/219:45:242
1073995221,3cyclictest33-21ksoftirqd/220:30:172
1073995220,4cyclictest33-21ksoftirqd/223:55:192
1073995218,9cyclictest33-21ksoftirqd/200:25:002
1073995111,7cyclictest33-21ksoftirqd/222:30:142
1073995031,3cyclictest33-21ksoftirqd/222:35:132
1073995023,7cyclictest33-21ksoftirqd/223:20:142
1073995023,7cyclictest33-21ksoftirqd/223:20:142
232142490,1sleep30-21swapper/300:20:263
107399492,4cyclictest27847-21latency_hist22:20:012
1073994922,3cyclictest33-21ksoftirqd/219:15:162
1073994921,5cyclictest33-21ksoftirqd/221:10:222
1073994920,7cyclictest33-21ksoftirqd/220:50:002
1073994920,7cyclictest33-21ksoftirqd/200:05:122
139391480,40ptp4l0-21swapper/319:10:003
1073994835,3cyclictest33-21ksoftirqd/220:50:272
1073994819,3cyclictest33-21ksoftirqd/222:03:122
1073994818,4cyclictest33-21ksoftirqd/200:30:202
1073994817,9cyclictest33-21ksoftirqd/219:55:002
1073994817,5cyclictest33-21ksoftirqd/222:27:202
1073994816,4cyclictest33-21ksoftirqd/220:00:142
1073994816,4cyclictest33-21ksoftirqd/220:00:132
1073994814,6cyclictest33-21ksoftirqd/221:30:242
1073994814,3cyclictest33-21ksoftirqd/220:05:132
1073994812,5cyclictest33-21ksoftirqd/220:35:122
1073994721,4cyclictest33-21ksoftirqd/223:15:202
1073994716,7cyclictest33-21ksoftirqd/220:15:162
1073994713,4cyclictest33-21ksoftirqd/222:10:012
1073994712,10cyclictest33-21ksoftirqd/222:10:202
107299470,45cyclictest0-21swapper/120:36:231
1073994619,6cyclictest33-21ksoftirqd/221:50:132
1073994612,7cyclictest33-21ksoftirqd/220:00:002
1073994518,3cyclictest33-21ksoftirqd/220:59:342
1073994516,9cyclictest33-21ksoftirqd/223:05:182
1073994514,5cyclictest33-21ksoftirqd/200:00:162
1073994514,4cyclictest33-21ksoftirqd/221:40:262
1073994513,9cyclictest33-21ksoftirqd/223:30:152
1073994511,10cyclictest33-21ksoftirqd/223:50:002
107399449,6cyclictest33-21ksoftirqd/223:10:232
107399449,10cyclictest33-21ksoftirqd/222:40:142
1073994437,4cyclictest33-21ksoftirqd/223:40:002
1073994412,10cyclictest33-21ksoftirqd/222:45:182
1073994410,6cyclictest33-21ksoftirqd/221:00:232
107399437,6cyclictest33-21ksoftirqd/221:35:142
107399437,6cyclictest33-21ksoftirqd/221:35:142
107399436,6cyclictest33-21ksoftirqd/219:10:222
107399430,3cyclictest33-21ksoftirqd/219:35:172
107199431,3cyclictest9-21ksoftirqd/022:51:350
139391420,0ptp4l401ktimersoftd/321:13:373
139391420,0ptp4l401ktimersoftd/320:50:073
1073994238,2cyclictest33-21ksoftirqd/222:00:002
107399422,3cyclictest33-21ksoftirqd/222:55:232
107399422,3cyclictest121rcu_preempt21:10:002
1072994213,28cyclictest0-21swapper/123:51:021
139391410,0ptp4l401ktimersoftd/323:18:023
139391410,0ptp4l401ktimersoftd/320:20:353
139391410,0ptp4l401ktimersoftd/320:14:123
134491410,1getstats0-21swapper/319:41:103
107399413,5cyclictest121rcu_preempt20:25:012
1073994033,3cyclictest33-21ksoftirqd/221:45:122
1073994011,9cyclictest33-21ksoftirqd/221:15:232
139391390,0ptp4l401ktimersoftd/300:17:103
107399399,3cyclictest33-21ksoftirqd/223:28:292
107399397,5cyclictest33-21ksoftirqd/219:25:252
1073993931,2cyclictest33-21ksoftirqd/200:15:132
1072993832,3cyclictest25-21ksoftirqd/121:25:001
1071993832,3cyclictest9-21ksoftirqd/023:30:140
139391370,1ptp4l401ktimersoftd/321:07:433
1072993713,21cyclictest21035-21awk20:55:261
57898360,2rtkit-daemon577-21rtkit-daemon22:03:210
139391360,13ptp4l401ktimersoftd/300:05:003
1072993631,3cyclictest13971-21dump-pmu-power00:05:001
1072993630,4cyclictest25-21ksoftirqd/123:48:141
1071993631,3cyclictest9-21ksoftirqd/021:55:110
139391350,11ptp4l401ktimersoftd/322:40:293
1074993529,4cyclictest41-21ksoftirqd/321:38:363
1074993529,4cyclictest41-21ksoftirqd/321:38:363
1072993529,4cyclictest25-21ksoftirqd/122:56:311
1072993528,5cyclictest25-21ksoftirqd/122:31:011
1072993528,5cyclictest25-21ksoftirqd/100:19:521
1072993513,3cyclictest1550-21grep19:10:151
107299350,34cyclictest0-21swapper/119:55:431
1071993530,3cyclictest9-21ksoftirqd/022:25:010
1071993530,3cyclictest9-21ksoftirqd/021:55:000
1071993529,4cyclictest9-21ksoftirqd/020:29:450
1071993529,3cyclictest9-21ksoftirqd/019:20:260
57898340,10rtkit-daemon32450-21apache223:33:391
1074993429,3cyclictest41-21ksoftirqd/320:49:553
1074993428,4cyclictest41-21ksoftirqd/323:02:563
1074993428,4cyclictest41-21ksoftirqd/319:15:503
1072993428,4cyclictest25-21ksoftirqd/123:57:051
1072993428,4cyclictest25-21ksoftirqd/123:37:511
1072993428,4cyclictest25-21ksoftirqd/122:16:561
1072993428,4cyclictest25-21ksoftirqd/120:23:161
1072993428,4cyclictest25-21ksoftirqd/100:26:141
1072993427,5cyclictest25-21ksoftirqd/120:47:591
1071993429,3cyclictest9-21ksoftirqd/023:15:000
1071993429,3cyclictest9-21ksoftirqd/022:50:000
1071993429,3cyclictest9-21ksoftirqd/022:25:180
1071993429,3cyclictest9-21ksoftirqd/020:15:150
1071993429,3cyclictest9-21ksoftirqd/020:15:000
1071993429,3cyclictest9-21ksoftirqd/000:30:180
139391330,0ptp4l401ktimersoftd/321:15:173
1074993328,3cyclictest41-21ksoftirqd/320:32:143
1074993327,4cyclictest41-21ksoftirqd/323:11:593
1074993327,4cyclictest41-21ksoftirqd/322:48:203
1074993327,4cyclictest41-21ksoftirqd/322:00:103
1074993327,4cyclictest41-21ksoftirqd/320:39:113
1074993327,4cyclictest41-21ksoftirqd/320:25:433
1074993327,4cyclictest41-21ksoftirqd/319:28:543
1074993327,4cyclictest41-21ksoftirqd/300:12:153
1072993328,3cyclictest25-21ksoftirqd/123:25:001
1072993328,3cyclictest25-21ksoftirqd/123:24:591
1072993327,4cyclictest25-21ksoftirqd/121:48:361
1072993327,4cyclictest25-21ksoftirqd/119:42:411
1072993327,4cyclictest25-21ksoftirqd/119:37:151
1072993327,4cyclictest25-21ksoftirqd/100:33:281
1072993312,3cyclictest27879-21df_inode20:05:131
1072993311,3cyclictest8131-21cat21:35:261
1072993311,3cyclictest8131-21cat21:35:261
1072993311,3cyclictest4840-21ptp4l19:15:231
1072993311,3cyclictest32729-21cat20:15:161
1072993311,3cyclictest22856-21cut23:15:191
1072993311,3cyclictest17032-21expr00:10:131
1072993311,3cyclictest10491-21expr22:50:141
1071993329,3cyclictest9-21ksoftirqd/000:24:540
1071993329,3cyclictest9-21ksoftirqd/000:05:110
1071993328,3cyclictest9-21ksoftirqd/023:05:110
1071993328,3cyclictest9-21ksoftirqd/022:05:170
1071993328,3cyclictest9-21ksoftirqd/020:05:170
1071993328,3cyclictest9-21ksoftirqd/019:45:000
1071993328,3cyclictest9-21ksoftirqd/019:30:140
1071993328,3cyclictest9-21ksoftirqd/019:15:000
1071993327,3cyclictest9-21ksoftirqd/021:15:000
1074993228,2cyclictest41-21ksoftirqd/319:49:443
1074993227,3cyclictest41-21ksoftirqd/323:46:343
1074993226,4cyclictest41-21ksoftirqd/322:39:373
1074993226,4cyclictest41-21ksoftirqd/322:10:363
1074993226,4cyclictest41-21ksoftirqd/320:03:403
1074993226,4cyclictest41-21ksoftirqd/320:03:403
1074993226,4cyclictest41-21ksoftirqd/319:56:303
107299329,3cyclictest9634-21latency_hist20:35:011
107299328,3cyclictest19085-21cat19:45:221
107299325,6cyclictest0-21swapper/120:50:271
107299323,2cyclictest121rcu_preempt22:49:011
1072993226,4cyclictest25-21ksoftirqd/121:41:181
1072993226,4cyclictest25-21ksoftirqd/120:10:401
1072993226,4cyclictest25-21ksoftirqd/100:37:131
1072993226,4cyclictest25-21ksoftirqd/100:20:041
1071993227,3cyclictest9-21ksoftirqd/023:21:140
1071993227,3cyclictest9-21ksoftirqd/023:21:140
1071993227,3cyclictest9-21ksoftirqd/020:05:010
1071993227,3cyclictest9-21ksoftirqd/020:05:000
1071993227,3cyclictest9-21ksoftirqd/020:00:000
1071993227,3cyclictest9-21ksoftirqd/019:25:190
1071993227,3cyclictest9-21ksoftirqd/000:39:590
1071993227,3cyclictest9-21ksoftirqd/000:00:190
1071993226,4cyclictest9-21ksoftirqd/023:46:260
1071993226,4cyclictest9-21ksoftirqd/023:39:560
1071993226,4cyclictest9-21ksoftirqd/023:01:210
1071993226,4cyclictest9-21ksoftirqd/021:31:180
1071993226,4cyclictest9-21ksoftirqd/020:57:570
139391310,0ptp4l401ktimersoftd/323:27:493
139391310,0ptp4l401ktimersoftd/322:55:163
139391310,0ptp4l401ktimersoftd/322:29:243
139391310,0ptp4l401ktimersoftd/321:53:213
139391310,0ptp4l401ktimersoftd/300:37:213
1074993126,3cyclictest41-21ksoftirqd/300:30:013
1074993125,4cyclictest41-21ksoftirqd/323:41:343
1074993125,4cyclictest41-21ksoftirqd/323:24:583
1074993125,4cyclictest41-21ksoftirqd/323:24:573
1074993125,4cyclictest41-21ksoftirqd/322:51:133
1074993125,4cyclictest41-21ksoftirqd/320:08:543
1072993126,3cyclictest25-21ksoftirqd/121:34:151
1072993126,3cyclictest25-21ksoftirqd/120:40:481
1072993125,4cyclictest25-21ksoftirqd/121:51:331
1072993111,3cyclictest1317-21runrttasks21:29:461
1072993110,3cyclictest20822-21latency_hist22:05:011
1071993127,2cyclictest24262-21kernelversion22:10:190
1071993126,3cyclictest9-21ksoftirqd/023:54:400
1071993126,3cyclictest9-21ksoftirqd/020:20:490
1071993126,3cyclictest9-21ksoftirqd/019:45:000
1071993126,3cyclictest9-21ksoftirqd/019:35:130
1071993126,3cyclictest27521-21fschecks_count23:25:150
1071993125,4cyclictest9-21ksoftirqd/022:41:100
1071993125,4cyclictest9-21ksoftirqd/021:37:320
1071993125,4cyclictest9-21ksoftirqd/021:37:320
1071993125,4cyclictest9-21ksoftirqd/021:00:050
1071993125,4cyclictest9-21ksoftirqd/020:50:190
1071993124,5cyclictest9-21ksoftirqd/020:31:570
139391300,7ptp4l401ktimersoftd/320:19:473
139391300,0ptp4l401ktimersoftd/323:39:593
139391300,0ptp4l401ktimersoftd/323:31:433
139391300,0ptp4l401ktimersoftd/321:32:423
1074993025,3cyclictest41-21ksoftirqd/323:54:193
1074993025,3cyclictest41-21ksoftirqd/321:25:103
1074993024,4cyclictest41-21ksoftirqd/300:30:453
1074993024,3cyclictest41-21ksoftirqd/321:22:353
1072993025,3cyclictest25-21ksoftirqd/119:32:371
1072993024,4cyclictest25-21ksoftirqd/123:06:591
1072993024,4cyclictest25-21ksoftirqd/122:24:471
1072993024,4cyclictest25-21ksoftirqd/121:09:411
107299301,7cyclictest19743-21apt-get23:10:121
107299301,3cyclictest24263-21kernelversion22:10:191
1072993010,2cyclictest21663-21ptp4l19:50:241
1071993026,2cyclictest9-21ksoftirqd/022:35:010
1071993025,3cyclictest9-21ksoftirqd/000:14:340
1074992924,3cyclictest41-21ksoftirqd/320:42:123
1074992923,4cyclictest41-21ksoftirqd/319:31:553
1072992924,3cyclictest25-21ksoftirqd/120:25:101
1072992924,3cyclictest25-21ksoftirqd/119:24:471
1072992923,4cyclictest25-21ksoftirqd/123:42:041
1072992923,4cyclictest25-21ksoftirqd/121:57:551
1072992923,3cyclictest25-21ksoftirqd/122:05:131
1071992925,2cyclictest9-21ksoftirqd/023:00:000
1071992924,3cyclictest9-21ksoftirqd/022:35:180
1071992924,3cyclictest9-21ksoftirqd/022:19:130
1071992924,3cyclictest9-21ksoftirqd/020:38:510
1071992924,3cyclictest9-21ksoftirqd/000:17:350
1071992923,4cyclictest9-21ksoftirqd/023:15:090
1071992923,4cyclictest9-21ksoftirqd/000:27:320
1071992923,3cyclictest9-21ksoftirqd/023:55:180
1074992823,3cyclictest41-21ksoftirqd/323:06:383
1074992823,3cyclictest41-21ksoftirqd/321:56:203
1074992823,3cyclictest41-21ksoftirqd/300:09:033
1074992822,4cyclictest41-21ksoftirqd/321:40:133
1072992823,3cyclictest25-21ksoftirqd/123:02:371
1072992823,3cyclictest25-21ksoftirqd/100:08:271
1072992822,4cyclictest25-21ksoftirqd/122:41:561
1071992824,2cyclictest9-21ksoftirqd/021:20:000
1071992823,3cyclictest9-21ksoftirqd/021:45:190
1071992823,3cyclictest9-21ksoftirqd/020:45:190
139391270,0ptp4l401ktimersoftd/319:53:043
1072992721,4cyclictest25-21ksoftirqd/121:16:391
1071992723,2cyclictest9-21ksoftirqd/023:40:200
1071992722,3cyclictest9-21ksoftirqd/021:20:170
1071992722,3cyclictest9-21ksoftirqd/021:05:190
1071992722,3cyclictest9-21ksoftirqd/020:40:200
107199271,2cyclictest121rcu_preempt19:15:110
1074992621,3cyclictest41-21ksoftirqd/321:45:433
1071992620,4cyclictest9-21ksoftirqd/021:42:140
1074992520,3cyclictest41-21ksoftirqd/321:02:283
1074992520,3cyclictest41-21ksoftirqd/319:38:313
1072992520,3cyclictest25-21ksoftirqd/121:11:061
1072992520,3cyclictest25-21ksoftirqd/120:01:461
1072992520,3cyclictest25-21ksoftirqd/120:01:461
1072992519,4cyclictest25-21ksoftirqd/119:27:041
1071992521,2cyclictest9-21ksoftirqd/021:25:170
1074992419,3cyclictest41-21ksoftirqd/319:24:143
1071992420,2cyclictest9-21ksoftirqd/019:50:140
1072992014,4cyclictest25-21ksoftirqd/123:26:481
1072991813,3cyclictest22941-21phc2sys21:00:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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