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2026-07-12 - 01:25
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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 792 highest latencies:
System rackdslot3.osadl.org (updated Sat Jul 11, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
327632207172,24sleep30-21swapper/307:06:303
3622204170,22sleep00-21swapper/007:07:150
5242203170,22sleep20-21swapper/207:09:182
327362203170,22sleep10-21swapper/107:06:081
2715521770,3sleep191099cyclictest08:05:011
2861321470,3sleep291199cyclictest09:15:142
2026221360,3sleep291199cyclictest08:55:242
23052580,1sleep30-21swapper/309:25:263
267652570,4sleep026764-21unixbench_multi12:30:290
139391550,1ptp4l391rcuc/307:55:153
90999542,2cyclictest5475-21seq11:48:320
139391540,1ptp4l401ktimersoftd/312:35:213
139391540,1ptp4l401ktimersoftd/308:29:273
139391540,1ptp4l401ktimersoftd/308:29:263
139391530,1ptp4l401ktimersoftd/309:58:473
139391500,1ptp4l391rcuc/307:40:363
3052490,2sleep30-21swapper/308:15:183
91199470,45cyclictest0-21swapper/209:50:232
139391460,0ptp4l401ktimersoftd/312:09:123
134391460,1getstats0-21swapper/309:30:303
139391450,5ptp4l91299cyclictest11:11:543
139391430,0ptp4l401ktimersoftd/312:20:243
139391420,0ptp4l401ktimersoftd/307:30:243
139391410,1ptp4l401ktimersoftd/308:39:343
134391410,1getstats25086-1kworker/3:2H10:50:513
91199400,38cyclictest0-21swapper/209:35:432
91199400,1cyclictest0-21swapper/208:45:232
910993932,4cyclictest9183-21cron10:49:591
57898390,4rtkit-daemon590-21gmain08:06:421
139391390,0ptp4l401ktimersoftd/310:01:203
91199388,28cyclictest1681-21kworker/2:209:45:232
911993832,4cyclictest33-21ksoftirqd/212:25:002
91199380,37cyclictest0-21swapper/209:05:232
910993832,3cyclictest25-21ksoftirqd/108:25:001
910993831,4cyclictest25-21ksoftirqd/111:29:121
910993831,4cyclictest25-21ksoftirqd/107:45:361
139391380,1ptp4l401ktimersoftd/308:07:513
139391380,14ptp4l401ktimersoftd/309:05:163
134391380,1getstats0-21swapper/309:45:303
912993731,4cyclictest41-21ksoftirqd/310:08:343
910993731,4cyclictest25-21ksoftirqd/108:44:281
910993730,4cyclictest25-21ksoftirqd/109:16:581
912993630,4cyclictest41-21ksoftirqd/311:47:433
911993630,4cyclictest33-21ksoftirqd/212:18:062
911993629,4cyclictest33-21ksoftirqd/212:39:212
911993627,4cyclictest33-21ksoftirqd/210:07:252
91199360,2cyclictest0-21swapper/208:15:232
910993630,4cyclictest25-21ksoftirqd/111:39:471
910993630,4cyclictest25-21ksoftirqd/110:11:371
910993630,4cyclictest25-21ksoftirqd/107:38:381
910993630,4cyclictest25-21ksoftirqd/107:15:341
910993629,4cyclictest25-21ksoftirqd/109:33:581
909993629,4cyclictest9-21ksoftirqd/007:18:230
90999360,4cyclictest28926-21/usr/sbin/munin09:15:160
90999360,4cyclictest2122-21/usr/sbin/munin08:20:280
90999360,3cyclictest1277-21/usr/sbin/munin09:25:160
139491362,3phc2sys41-21ksoftirqd/307:10:463
912993530,3cyclictest41-21ksoftirqd/311:30:003
912993529,4cyclictest41-21ksoftirqd/311:42:103
912993529,4cyclictest41-21ksoftirqd/310:16:573
912993529,4cyclictest41-21ksoftirqd/307:36:193
912993528,4cyclictest41-21ksoftirqd/310:27:163
912993528,4cyclictest41-21ksoftirqd/308:00:113
911993530,3cyclictest33-21ksoftirqd/211:17:572
911993529,4cyclictest33-21ksoftirqd/209:01:582
911993528,4cyclictest33-21ksoftirqd/209:27:172
911993528,4cyclictest33-21ksoftirqd/207:40:592
910993530,3cyclictest25-21ksoftirqd/110:00:341
910993529,4cyclictest25-21ksoftirqd/112:29:331
910993529,4cyclictest25-21ksoftirqd/112:17:461
910993529,4cyclictest25-21ksoftirqd/112:03:371
910993529,4cyclictest25-21ksoftirqd/109:40:361
910993529,4cyclictest25-21ksoftirqd/109:09:431
910993529,4cyclictest25-21ksoftirqd/107:53:211
909993529,3cyclictest9-21ksoftirqd/011:42:590
909993528,4cyclictest9-21ksoftirqd/009:36:460
909993514,19cyclictest25214-21sensors_temp09:05:250
909993511,21cyclictest11480-21latency_hist08:40:000
90999350,4cyclictest16046-21grep09:55:160
139391350,0ptp4l401ktimersoftd/311:55:243
912993429,3cyclictest41-21ksoftirqd/312:28:073
912993428,4cyclictest41-21ksoftirqd/312:34:443
912993428,4cyclictest41-21ksoftirqd/312:13:193
912993428,4cyclictest41-21ksoftirqd/311:02:023
912993428,4cyclictest41-21ksoftirqd/309:20:003
911993428,4cyclictest33-21ksoftirqd/212:28:142
911993428,4cyclictest33-21ksoftirqd/211:48:542
911993428,4cyclictest33-21ksoftirqd/211:01:242
911993428,4cyclictest33-21ksoftirqd/210:48:412
911993428,4cyclictest33-21ksoftirqd/210:27:142
911993428,4cyclictest33-21ksoftirqd/210:12:552
911993428,4cyclictest33-21ksoftirqd/209:42:302
911993428,4cyclictest33-21ksoftirqd/209:10:412
911993428,4cyclictest33-21ksoftirqd/208:55:002
910993429,3cyclictest25-21ksoftirqd/107:10:031
910993429,3cyclictest15356-21cron09:55:001
910993428,4cyclictest25-21ksoftirqd/112:36:581
910993428,4cyclictest25-21ksoftirqd/112:30:421
910993428,4cyclictest25-21ksoftirqd/107:31:391
910993427,4cyclictest25-21ksoftirqd/109:29:451
909993429,3cyclictest9-21ksoftirqd/011:15:120
909993428,3cyclictest9-21ksoftirqd/007:43:580
90999340,4cyclictest8043-21wc07:25:010
90999340,3cyclictest9588-21/usr/sbin/munin09:40:240
912993328,3cyclictest41-21ksoftirqd/307:51:403
912993327,4cyclictest41-21ksoftirqd/312:02:033
912993327,4cyclictest41-21ksoftirqd/311:32:473
912993327,4cyclictest41-21ksoftirqd/311:08:003
912993327,4cyclictest41-21ksoftirqd/310:14:083
912993327,4cyclictest41-21ksoftirqd/309:40:423
911993328,3cyclictest33-21ksoftirqd/211:25:122
911993328,3cyclictest33-21ksoftirqd/210:59:042
911993327,4cyclictest33-21ksoftirqd/212:04:592
911993327,4cyclictest33-21ksoftirqd/211:32:572
911993327,4cyclictest33-21ksoftirqd/209:24:212
911993327,3cyclictest33-21ksoftirqd/212:13:112
911993327,3cyclictest33-21ksoftirqd/211:38:312
911993327,3cyclictest33-21ksoftirqd/207:12:132
911993326,4cyclictest33-21ksoftirqd/210:31:402
911993326,4cyclictest33-21ksoftirqd/210:31:402
911993326,4cyclictest33-21ksoftirqd/207:22:302
910993328,3cyclictest25-21ksoftirqd/111:22:501
910993328,3cyclictest25-21ksoftirqd/108:52:421
910993327,4cyclictest25-21ksoftirqd/112:08:431
910993327,4cyclictest25-21ksoftirqd/111:03:001
910993327,4cyclictest25-21ksoftirqd/109:49:311
910993327,4cyclictest25-21ksoftirqd/109:20:101
910993327,4cyclictest25-21ksoftirqd/108:28:561
910993327,4cyclictest25-21ksoftirqd/108:28:551
910993327,4cyclictest25-21ksoftirqd/107:44:441
910993326,4cyclictest25-21ksoftirqd/110:15:101
90999339,21cyclictest32224-21open_inodes11:35:210
90999339,21cyclictest1617-21awk10:30:280
90999339,21cyclictest1617-21awk10:30:280
90999339,20cyclictest828-21latency_hist09:25:000
90999338,23cyclictest1-21systemd08:02:130
90999336,24cyclictest26023-21irqrtprio10:15:200
909993327,4cyclictest9-21ksoftirqd/011:05:030
909993327,4cyclictest9-21ksoftirqd/010:23:240
909993327,4cyclictest9-21ksoftirqd/010:00:570
909993326,4cyclictest9-21ksoftirqd/012:09:180
909993312,19cyclictest31082-21ptp4l-jitter08:10:240
909993312,18cyclictest27798-21fschecks_count08:05:160
909993312,18cyclictest21431-21ptp4l12:20:230
909993310,20cyclictest22839-21sed12:25:140
90999330,5cyclictest9107-21latency_hist08:35:000
90999330,4cyclictest13241-21apt-get09:50:120
90999330,3cyclictest26072-21cron11:25:010
90999330,3cyclictest11040-21df_inode09:45:160
134491330,2getstats0-21swapper/308:24:143
912993227,3cyclictest41-21ksoftirqd/307:45:133
912993226,4cyclictest41-21ksoftirqd/311:37:243
912993226,4cyclictest41-21ksoftirqd/310:36:343
912993226,4cyclictest41-21ksoftirqd/309:01:593
912993226,4cyclictest41-21ksoftirqd/307:29:323
912993225,5cyclictest41-21ksoftirqd/308:59:223
911993227,3cyclictest33-21ksoftirqd/211:55:502
911993227,3cyclictest33-21ksoftirqd/211:50:532
911993227,3cyclictest33-21ksoftirqd/210:15:142
911993227,3cyclictest33-21ksoftirqd/209:58:122
911993226,4cyclictest33-21ksoftirqd/210:04:002
911993226,4cyclictest33-21ksoftirqd/208:41:012
911993226,4cyclictest33-21ksoftirqd/207:58:562
911993225,4cyclictest33-21ksoftirqd/211:43:492
911993225,4cyclictest33-21ksoftirqd/207:31:402
911993224,5cyclictest33-21ksoftirqd/208:04:502
910993227,3cyclictest25-21ksoftirqd/111:30:531
910993227,3cyclictest25-21ksoftirqd/109:01:561
910993226,4cyclictest25-21ksoftirqd/110:26:381
910993225,4cyclictest25-21ksoftirqd/108:16:361
90999329,20cyclictest13649-21seq08:43:150
90999327,22cyclictest8540-21df_abs11:55:150
90999326,23cyclictest7568-21/usr/sbin/munin10:45:170
90999326,23cyclictest10276-21cut10:50:190
909993226,4cyclictest9-21ksoftirqd/007:39:440
909993225,5cyclictest9-21ksoftirqd/007:34:430
909993225,4cyclictest9-21ksoftirqd/007:54:080
909993213,17cyclictest2600-21df_abs10:35:150
909993210,20cyclictest28641-21phc2sys12:35:220
909993210,19cyclictest3608-21expr09:30:150
90999320,4cyclictest21337-21latency_hist09:00:000
90999320,3cyclictest0-21swapper/012:10:250
90999320,3cyclictest0-21swapper/008:25:240
90999320,3cyclictest0-21swapper/008:25:240
90999320,2cyclictest0-21swapper/008:18:040
139391320,0ptp4l401ktimersoftd/312:20:013
912993125,4cyclictest41-21ksoftirqd/310:41:243
912993125,4cyclictest41-21ksoftirqd/307:22:303
911993126,3cyclictest33-21ksoftirqd/207:53:242
911993125,4cyclictest33-21ksoftirqd/208:37:272
911993125,4cyclictest33-21ksoftirqd/207:16:452
910993127,3cyclictest25-21ksoftirqd/108:32:141
910993126,3cyclictest25-21ksoftirqd/111:41:501
910993126,3cyclictest25-21ksoftirqd/110:35:131
910993126,3cyclictest25-21ksoftirqd/110:08:191
910993126,3cyclictest25-21ksoftirqd/108:13:261
910993125,4cyclictest25-21ksoftirqd/112:14:251
910993125,4cyclictest25-21ksoftirqd/111:51:501
910993125,4cyclictest25-21ksoftirqd/107:20:361
910993125,3cyclictest25-21ksoftirqd/107:29:331
910993124,4cyclictest25-21ksoftirqd/111:45:121
90999313,22cyclictest29916-21apt-get10:25:120
909993126,3cyclictest9-21ksoftirqd/009:10:550
909993125,4cyclictest9-21ksoftirqd/010:08:590
909993124,4cyclictest9-21ksoftirqd/010:10:080
909993110,19cyclictest6014-21ptp4l-jitter10:40:240
909993110,19cyclictest29091-21fschecks_count11:30:160
90999310,4cyclictest19192-21apt-get11:10:130
90999310,4cyclictest16576-21cron11:05:000
90999310,3cyclictest17984-21df07:45:160
90999310,3cyclictest14922-21ps08:45:200
912993025,3cyclictest41-21ksoftirqd/311:53:493
912993025,3cyclictest41-21ksoftirqd/308:11:083
912993024,3cyclictest41-21ksoftirqd/311:24:053
912993024,3cyclictest41-21ksoftirqd/309:35:113
911993025,3cyclictest33-21ksoftirqd/212:08:182
911993025,3cyclictest33-21ksoftirqd/208:29:142
911993025,3cyclictest33-21ksoftirqd/208:29:142
911993025,3cyclictest33-21ksoftirqd/207:26:372
911993024,4cyclictest33-21ksoftirqd/211:22:382
911993024,4cyclictest33-21ksoftirqd/208:22:512
911993024,3cyclictest33-21ksoftirqd/212:33:582
91199301,28cyclictest11256-21kworker/2:107:48:492
910993025,3cyclictest25-21ksoftirqd/111:59:301
910993024,4cyclictest25-21ksoftirqd/111:05:531
910993024,4cyclictest25-21ksoftirqd/109:36:021
910993024,4cyclictest25-21ksoftirqd/107:55:021
90999309,19cyclictest1317-21runrttasks07:28:250
90999307,20cyclictest12304-21unixbench_singl12:00:280
139391300,0ptp4l401ktimersoftd/309:14:553
139391300,0ptp4l401ktimersoftd/308:32:473
139391300,0ptp4l401ktimersoftd/307:15:263
912992924,3cyclictest41-21ksoftirqd/310:30:563
912992924,3cyclictest41-21ksoftirqd/310:30:563
912992924,3cyclictest41-21ksoftirqd/309:50:243
911992923,4cyclictest33-21ksoftirqd/211:12:362
911992923,4cyclictest33-21ksoftirqd/208:07:542
91199292,14cyclictest23444-21kworker/2:010:42:052
910992924,3cyclictest25-21ksoftirqd/110:43:181
910992924,3cyclictest25-21ksoftirqd/108:56:431
910992923,4cyclictest25-21ksoftirqd/111:18:131
910992923,4cyclictest25-21ksoftirqd/110:52:091
910992923,4cyclictest25-21ksoftirqd/110:34:161
910992923,4cyclictest25-21ksoftirqd/110:34:161
910992923,4cyclictest25-21ksoftirqd/109:57:081
90999299,18cyclictest1317-21runrttasks11:52:510
90999298,18cyclictest22216-21cut09:00:190
90999296,20cyclictest196132chrt12:16:440
909992924,3cyclictest9-21ksoftirqd/011:28:090
90999292,3cyclictest17829-21netstat08:50:210
139391290,0ptp4l401ktimersoftd/309:20:233
139391290,0ptp4l401ktimersoftd/308:46:423
912992822,4cyclictest41-21ksoftirqd/311:15:423
911992824,3cyclictest33-21ksoftirqd/209:30:502
910992822,4cyclictest25-21ksoftirqd/110:56:341
909992821,4cyclictest9-21ksoftirqd/010:55:050
90999281,3cyclictest23454-21/usr/sbin/munin07:55:210
139391280,0ptp4l401ktimersoftd/310:55:133
139391280,0ptp4l401ktimersoftd/310:23:053
911992722,3cyclictest33-21ksoftirqd/210:36:262
911992721,4cyclictest33-21ksoftirqd/208:31:332
911992721,4cyclictest33-21ksoftirqd/207:36:012
91199271,25cyclictest23444-21kworker/2:010:51:172
910992721,4cyclictest25-21ksoftirqd/112:20:391
910992721,4cyclictest25-21ksoftirqd/108:45:441
90999271,4cyclictest1471-21hddtemp_smartct07:10:170
912992620,4cyclictest41-21ksoftirqd/308:53:533
912992620,4cyclictest41-21ksoftirqd/308:40:333
911992621,3cyclictest33-21ksoftirqd/208:10:352
91199261,24cyclictest23444-21kworker/2:010:21:162
910992621,3cyclictest25-21ksoftirqd/111:11:551
910992620,4cyclictest25-21ksoftirqd/109:14:571
911992520,3cyclictest33-21ksoftirqd/211:09:262
910992419,3cyclictest25-21ksoftirqd/110:21:531
139391240,0ptp4l401ktimersoftd/310:45:093
910991712,3cyclictest25-21ksoftirqd/108:37:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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