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2026-07-08 - 01:35
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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 Tue Jul 07, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1943821800,5sleep11379199cyclictest10:50:131
2119321780,6sleep21379299cyclictest08:35:162
2109221440,6sleep31379399cyclictest12:00:243
2048021360,3sleep01379099cyclictest10:50:240
13793997316,12cyclictest9202-21chrt09:16:283
13793997316,12cyclictest21508-21chrt09:45:083
13793997216,11cyclictest996-21chrt12:28:083
13793997116,12cyclictest32271-21chrt07:50:073
13793996816,12cyclictest3495-21chrt12:34:383
197182670,3sleep30-21swapper/312:00:013
98732640,4sleep30-21swapper/308:10:163
13793996312,47cyclictest24096-21sed07:30:243
13793996312,47cyclictest24096-21sed07:30:243
13793996311,11cyclictest27815-21cat07:40:143
13793996213,10cyclictest13903-21irqrtprio11:45:183
134491620,3ptp4l20923-21meminfo12:00:212
1379399612,57cyclictest0-21swapper/311:10:203
134491610,4ptp4l0-21swapper/112:10:121
1379399609,11cyclictest27350-21hddtemp_smartct12:15:183
13793996016,11cyclictest22432-21taskset07:25:363
134491600,4ptp4l0-21swapper/111:15:011
13793995913,10cyclictest2460-21chrt07:55:133
13793995817,11cyclictest752-21taskset11:19:583
13793995816,9cyclictest17981-21taskset07:17:413
134491580,6ptp4l0-21swapper/107:08:161
134491580,4ptp4l0-21swapper/009:25:420
41682570,5sleep09-21ksoftirqd/012:35:150
13793995717,12cyclictest18308-21taskset08:29:333
134491570,5ptp4l0-21swapper/209:20:152
134491570,3ptp4l0-21swapper/109:55:171
134491570,3ptp4l0-21swapper/107:38:161
134491570,3ptp4l0-21swapper/011:40:260
1379399568,11cyclictest8422-21taskset11:35:113
13793995617,9cyclictest12432-21seq11:43:083
134491560,5ptp4l0-21swapper/009:45:300
134491560,4ptp4l0-21swapper/312:09:553
134491560,4ptp4l0-21swapper/312:09:553
134491560,4ptp4l0-21swapper/010:40:010
134491560,4ptp4l0-21swapper/007:55:120
134491560,3ptp4l23560-21cron11:00:000
134491560,3ptp4l0-21swapper/109:25:251
13793995514,8cyclictest2413-21systemctl11:20:253
1379399550,12cyclictest2216-21taskset09:00:523
1379399550,12cyclictest2216-21taskset09:00:523
134491550,4ptp4l0-21swapper/211:38:052
134491550,4ptp4l0-21swapper/110:28:021
134491550,4ptp4l0-21swapper/107:20:441
134491550,4ptp4l0-21swapper/010:32:170
134491550,3ptp4l0-21swapper/108:38:421
134491550,3ptp4l0-21swapper/010:00:590
1379399542,49cyclictest0-21swapper/311:30:263
13793995418,9cyclictest6717-21seq08:03:443
13793995418,9cyclictest6717-21seq08:03:433
13793995417,12cyclictest11656-21taskset08:15:093
13793995413,36cyclictest19461-21ls07:20:213
13793995412,10cyclictest21070-21runrttasks09:42:273
134491540,4ptp4l0-21swapper/208:30:362
134491540,4ptp4l0-21swapper/012:24:530
134491540,4ptp4l0-21swapper/008:14:300
134491540,4ptp4l0-21swapper/007:53:480
134491540,4ptp4l0-21swapper/007:49:430
134491540,3ptp4l0-21swapper/010:45:160
134491540,3ptp4l0-21swapper/009:50:350
1379399539,41cyclictest30206-21latency_hist08:55:003
13793995318,12cyclictest27129-21taskset07:36:143
13793995318,11cyclictest8823-21runrttasks08:06:163
13793995314,10cyclictest5209-21taskset11:26:483
134491530,4ptp4l0-21swapper/212:17:102
134491530,4ptp4l0-21swapper/212:08:472
134491530,4ptp4l0-21swapper/212:08:462
134491530,4ptp4l0-21swapper/009:57:220
134491530,4ptp4l0-21swapper/008:06:160
134491530,3ptp4l0-21swapper/209:30:472
134491530,3ptp4l0-21swapper/108:07:371
134491530,3ptp4l0-21swapper/012:25:290
134491530,3ptp4l0-21swapper/012:08:080
134491530,3ptp4l0-21swapper/012:08:070
134491530,3ptp4l0-21swapper/008:59:250
13793995213,7cyclictest6480-21ntp_states10:20:233
134491520,4ptp4l0-21swapper/211:44:212
134491520,4ptp4l0-21swapper/208:54:292
134491520,4ptp4l0-21swapper/109:07:101
134491520,4ptp4l0-21swapper/012:00:570
134491520,12ptp4l0-21swapper/009:40:200
13793995118,10cyclictest13803-21runrttasks07:10:073
13793995111,37cyclictest13957-21apt-config09:27:303
134491510,4ptp4l0-21swapper/208:29:212
134491510,4ptp4l0-21swapper/108:18:111
134491510,4ptp4l0-21swapper/011:16:170
134491510,4ptp4l0-21swapper/009:33:380
134491510,4ptp4l0-21swapper/007:23:150
13793995017,12cyclictest27959-21taskset09:56:473
13793995016,10cyclictest11718-21runrttasks09:23:593
13793995015,9cyclictest20871-21chrt08:35:073
13793995014,13cyclictest4200-21perl12:35:163
134491500,8ptp4l9-21ksoftirqd/010:21:590
134491500,5ptp4l0-21swapper/007:07:120
134491500,4ptp4l0-21swapper/212:37:482
134491500,4ptp4l0-21swapper/108:55:231
134491500,4ptp4l0-21swapper/010:11:420
134491500,4ptp4l0-21swapper/008:45:390
134491500,4ptp4l0-21swapper/008:24:130
134491500,3ptp4l0-21swapper/010:18:310
134491500,3ptp4l0-21swapper/008:03:500
134491500,3ptp4l0-21swapper/008:03:500
134491500,2ptp4l7090-21sed11:30:260
13793994918,28cyclictest6992-21seq09:12:363
13793994918,10cyclictest20458-21seq08:32:483
13793994913,16cyclictest13988-21/usr/sbin/munin08:20:163
134491490,4ptp4l0-21swapper/211:58:272
134491490,3ptp4l0-21swapper/211:48:062
134491490,3ptp4l0-21swapper/111:49:181
1379399481,9cyclictest0-21swapper/310:30:123
13793994813,13cyclictest26870-21mailstats08:45:263
134491480,5ptp4l0-21swapper/207:46:512
134491480,4ptp4l0-21swapper/211:50:332
134491480,4ptp4l0-21swapper/211:29:052
134491480,4ptp4l0-21swapper/109:50:301
134491480,4ptp4l0-21swapper/010:06:190
134491480,3ptp4l0-21swapper/110:36:171
134491480,3ptp4l0-21swapper/010:37:390
134491470,3ptp4l0-21swapper/209:09:422
134491470,3ptp4l0-21swapper/011:26:490
213462460,4sleep121350-21irqrtprio07:25:181
13793994640,3cyclictest28817-21fschecks_count10:00:173
13793994619,24cyclictest26559-21seq12:13:493
13793994614,6cyclictest134691getstats10:55:053
134491460,4ptp4l16917-21apt-get09:35:130
134491460,4ptp4l0-21swapper/209:03:072
134491460,4ptp4l0-21swapper/209:03:072
134491460,3ptp4l0-21swapper/108:48:011
134491450,9ptp4l0-21swapper/112:33:291
134491450,8ptp4l0-21swapper/212:28:072
134491450,4ptp4l19163-21apt-get10:50:112
134491450,4ptp4l0-21swapper/212:13:502
134491450,3ptp4l0-21swapper/208:59:212
134491450,3ptp4l0-21swapper/208:15:262
134491450,3ptp4l0-21swapper/110:20:561
134491450,3ptp4l0-21swapper/011:21:020
134491450,10ptp4l212-21systemd-journal09:55:002
134491450,10ptp4l0-21swapper/010:27:320
13793994416,11cyclictest32252-21runrttasks08:58:083
134491440,9ptp4l0-21swapper/007:18:010
134491440,5ptp4l0-21swapper/310:35:213
134491440,4ptp4l0-21swapper/109:48:031
134491440,4ptp4l0-21swapper/109:00:281
134491440,4ptp4l0-21swapper/109:00:281
134491440,4ptp4l0-21swapper/008:36:090
134491440,4ptp4l0-21swapper/007:40:240
134491440,3ptp4l0-21swapper/110:48:081
134491440,3ptp4l0-21swapper/110:14:371
134491440,3ptp4l0-21swapper/007:29:360
1379399433,36cyclictest0-21swapper/310:40:243
134491430,9ptp4l0-21swapper/009:14:320
134491430,5ptp4l0-21swapper/211:17:532
134491430,5ptp4l0-21swapper/009:15:150
134491430,4ptp4l26347-21apt-get11:05:131
134491430,4ptp4l0-21swapper/109:38:301
134491430,4ptp4l0-21swapper/107:16:551
134491430,3ptp4l0-21swapper/109:20:011
13793994216,10cyclictest28221-21seq11:07:583
13792994232,3cyclictest33-21ksoftirqd/207:19:212
134491420,9ptp4l0-21swapper/211:01:012
134491420,5ptp4l0-21swapper/207:20:202
134491420,5ptp4l0-21swapper/112:05:221
134491420,5ptp4l0-21swapper/112:05:221
134491420,4ptp4l5896-21ntp_states08:00:231
134491420,4ptp4l5896-21ntp_states08:00:221
134491420,4ptp4l22412-21meminfo10:55:211
134491420,4ptp4l1924-21irqstats11:20:191
134491420,4ptp4l13944-21apt-get09:27:332
134491420,4ptp4l0-21swapper/310:05:223
134491420,4ptp4l0-21swapper/309:30:553
134491420,4ptp4l0-21swapper/211:20:152
134491420,4ptp4l0-21swapper/208:42:012
134491420,4ptp4l0-21swapper/111:53:061
134491420,4ptp4l0-21swapper/011:57:030
134491420,4ptp4l0-21swapper/007:10:250
134491420,3ptp4l19617-21ls08:30:230
13791994136,3cyclictest25-21ksoftirqd/111:45:001
13791994136,3cyclictest25-21ksoftirqd/108:45:001
134491410,9ptp4l0-21swapper/209:36:472
134491410,9ptp4l0-21swapper/009:06:290
134491410,5ptp4l31739-21meminfo10:05:202
134491410,4ptp4l9761-21apt-get09:20:130
134491410,4ptp4l7764-21apt-get11:35:031
134491410,4ptp4l29072-21hddtemp_smartct11:10:160
134491410,4ptp4l26287-21users12:10:270
134491410,4ptp4l15145-21iostat_ios10:40:171
134491410,4ptp4l10495-21ntp_states08:10:232
134491410,4ptp4l0-21swapper/310:15:183
134491410,4ptp4l0-21swapper/308:40:283
134491410,4ptp4l0-21swapper/111:12:011
134491410,4ptp4l0-21swapper/107:30:211
134491410,4ptp4l0-21swapper/107:30:211
134491410,4ptp4l0-21swapper/011:50:140
134491410,4ptp4l0-21swapper/011:09:200
134491410,4ptp4l0-21swapper/009:02:010
134491410,4ptp4l0-21swapper/009:02:010
134491410,3ptp4l16732-21hddtemp_smartct08:25:170
13791994036,3cyclictest25-21ksoftirqd/110:20:011
134491400,8ptp4l0-21swapper/211:13:352
134491400,8ptp4l0-21swapper/209:11:192
134491400,7ptp4l0-21swapper/311:50:483
134491400,5ptp4l32484-21/usr/sbin/munin07:50:121
134491400,5ptp4l0-21swapper/008:40:150
134491400,4ptp4l7442-21apt-get09:15:132
134491400,4ptp4l6672-21memory11:30:211
134491400,4ptp4l23940-21irqstats07:30:210
134491400,4ptp4l23940-21irqstats07:30:210
134491400,4ptp4l0-21swapper/307:46:553
134491400,4ptp4l0-21swapper/211:34:582
134491400,4ptp4l0-21swapper/210:20:102
134491400,4ptp4l0-21swapper/210:15:482
134491400,4ptp4l0-21swapper/208:45:282
134491400,4ptp4l0-21swapper/208:04:012
134491400,4ptp4l0-21swapper/208:04:002
134491400,4ptp4l0-21swapper/110:07:501
134491400,4ptp4l0-21swapper/110:03:321
134491400,4ptp4l0-21swapper/109:11:001
134491400,4ptp4l0-21swapper/107:11:441
134491400,4ptp4l0-21swapper/012:15:450
134491400,4ptp4l0-21swapper/011:45:420
134491400,4ptp4l0-21swapper/011:35:090
134491400,4ptp4l0-21swapper/008:51:580
134491400,3ptp4l0-21swapper/209:45:072
134491390,6ptp4l0-21swapper/007:36:000
134491390,5ptp4l0-21swapper/309:54:313
134491390,4ptp4l29221-21/usr/sbin/munin12:20:253
134491390,4ptp4l25-21ksoftirqd/108:52:341
134491390,4ptp4l0-21swapper/311:02:433
134491390,4ptp4l0-21swapper/310:25:013
134491390,4ptp4l0-21swapper/310:12:543
134491390,4ptp4l0-21swapper/309:36:143
134491390,4ptp4l0-21swapper/212:34:052
134491390,4ptp4l0-21swapper/212:20:152
134491390,4ptp4l0-21swapper/211:05:532
134491390,4ptp4l0-21swapper/210:55:402
134491390,4ptp4l0-21swapper/210:47:102
134491390,4ptp4l0-21swapper/210:42:132
134491390,4ptp4l0-21swapper/210:35:512
134491390,4ptp4l0-21swapper/210:30:442
134491390,4ptp4l0-21swapper/210:25:202
134491390,4ptp4l0-21swapper/210:10:502
134491390,4ptp4l0-21swapper/210:01:032
134491390,4ptp4l0-21swapper/209:59:072
134491390,4ptp4l0-21swapper/209:43:352
134491390,4ptp4l0-21swapper/207:58:102
134491390,4ptp4l0-21swapper/207:51:502
134491390,4ptp4l0-21swapper/207:42:492
134491390,4ptp4l0-21swapper/207:30:042
134491390,4ptp4l0-21swapper/207:30:042
134491390,4ptp4l0-21swapper/112:25:171
134491390,4ptp4l0-21swapper/112:00:411
134491390,4ptp4l0-21swapper/111:57:441
134491390,4ptp4l0-21swapper/111:25:131
134491390,4ptp4l0-21swapper/109:43:261
134491390,4ptp4l0-21swapper/109:30:251
134491390,4ptp4l0-21swapper/109:15:161
134491390,4ptp4l0-21swapper/108:30:151
134491390,4ptp4l0-21swapper/108:20:001
134491390,4ptp4l0-21swapper/108:10:101
134491390,4ptp4l0-21swapper/107:55:201
134491390,4ptp4l0-21swapper/012:30:230
134491390,4ptp4l0-21swapper/011:00:210
134491390,4ptp4l0-21swapper/008:19:130
134491390,3ptp4l0-21swapper/309:05:263
134491390,3ptp4l0-21swapper/208:20:282
134491390,3ptp4l0-21swapper/111:00:201
134491390,3ptp4l0-21swapper/108:26:481
13791993833,3cyclictest25-21ksoftirqd/107:45:011
134491380,4ptp4l0-21swapper/310:50:123
134491380,4ptp4l0-21swapper/310:48:153
134491380,4ptp4l0-21swapper/208:07:182
134491380,4ptp4l0-21swapper/207:39:082
134491380,4ptp4l0-21swapper/207:26:222
134491380,4ptp4l0-21swapper/207:11:272
134491380,3ptp4l30572-21/usr/sbin/munin07:45:191
134491380,3ptp4l0-21swapper/112:23:171
134491380,3ptp4l0-21swapper/110:30:271
134491370,3ptp4l0-21swapper/112:35:071
134491370,3ptp4l0-21swapper/112:16:591
137891223,11phc2sys0-21swapper/307:06:203
46198210,12rtkit-daemon11166-21kworker/2:007:06:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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