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2026-03-15 - 23:34
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackbslot6.osadl.org (updated Sun Mar 15, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911080,39ptp4l401ktimersoftd/308:01:063
259352780,4sleep23082499cyclictest11:41:202
90102730,2sleep33083199cyclictest12:29:113
90102730,2sleep33083199cyclictest12:29:113
106891690,1ptp4l401ktimersoftd/311:24:263
106891680,1ptp4l401ktimersoftd/310:06:493
302482670,1sleep30-21swapper/313:22:313
97402650,2sleep00-21swapper/010:51:480
106891650,1ptp4l401ktimersoftd/312:04:043
106891640,1ptp4l401ktimersoftd/310:59:453
310572630,5sleep131059-21apt-config08:01:311
30810995914,34cyclictest14524-21sh10:22:410
219662590,2sleep20-21swapper/211:03:262
189192590,2sleep00-21swapper/011:32:470
106891570,1ptp4l401ktimersoftd/312:25:503
106891540,1ptp4l401ktimersoftd/311:54:553
47202520,3sleep00-21swapper/010:12:450
30810995211,26cyclictest1055-21runrttasks10:32:530
30819995140,6cyclictest25-21ksoftirqd/108:21:421
106891510,2ptp4l25453-21kworker/3:111:19:163
30819995023,7cyclictest25-21ksoftirqd/111:31:481
30819995019,8cyclictest25-21ksoftirqd/113:11:401
143291500,2getstats0-21swapper/312:19:463
3081999495,10cyclictest25-21ksoftirqd/109:01:541
30819994931,3cyclictest25-21ksoftirqd/112:26:491
30819994931,3cyclictest25-21ksoftirqd/112:26:491
30819994923,4cyclictest25-21ksoftirqd/111:11:501
30819994919,11cyclictest25-21ksoftirqd/110:46:511
30819994917,10cyclictest25-21ksoftirqd/110:36:571
3081999486,9cyclictest25-21ksoftirqd/112:01:501
3081999486,8cyclictest25-21ksoftirqd/110:01:511
30819994820,10cyclictest25-21ksoftirqd/112:11:521
30819994819,10cyclictest25-21ksoftirqd/111:57:021
106891480,2ptp4l25453-21kworker/3:111:49:063
3081999476,10cyclictest25-21ksoftirqd/112:36:571
3081999475,9cyclictest25-21ksoftirqd/110:41:511
3081999475,9cyclictest25-21ksoftirqd/110:41:511
30819994723,10cyclictest25-21ksoftirqd/111:21:531
30819994721,4cyclictest25-21ksoftirqd/112:46:571
30819994720,9cyclictest25-21ksoftirqd/111:01:341
30819994720,7cyclictest25-21ksoftirqd/111:52:021
30819994720,7cyclictest25-21ksoftirqd/108:46:541
30819994720,4cyclictest25-21ksoftirqd/110:31:271
30819994720,10cyclictest25-21ksoftirqd/112:43:091
30819994719,7cyclictest25-21ksoftirqd/111:51:361
30819994717,5cyclictest25-21ksoftirqd/109:48:151
30819994715,9cyclictest25-21ksoftirqd/108:06:471
106891470,1ptp4l401ktimersoftd/313:30:513
3081999466,7cyclictest25-21ksoftirqd/111:41:051
3081999464,8cyclictest25-21ksoftirqd/111:16:511
3081999462,9cyclictest25-21ksoftirqd/113:26:381
30819994619,7cyclictest25-21ksoftirqd/112:32:061
30819994619,7cyclictest25-21ksoftirqd/112:32:061
30819994619,6cyclictest25-21ksoftirqd/108:31:301
30819994614,9cyclictest25-21ksoftirqd/113:26:591
304382464,29sleep20-21swapper/207:58:012
3081999457,7cyclictest25-21ksoftirqd/113:06:521
3081999457,5cyclictest25-21ksoftirqd/113:16:381
3081999454,6cyclictest25-21ksoftirqd/110:11:541
30819994531,3cyclictest25-21ksoftirqd/110:19:221
30819994521,9cyclictest25-21ksoftirqd/109:51:451
30819994520,9cyclictest25-21ksoftirqd/110:08:091
30819994519,10cyclictest25-21ksoftirqd/110:24:361
30819994518,7cyclictest25-21ksoftirqd/113:01:551
30819994518,7cyclictest25-21ksoftirqd/109:32:001
3081999450,9cyclictest25-21ksoftirqd/109:36:461
3081099453,5cyclictest0-21swapper/011:56:450
3081999446,9cyclictest25-21ksoftirqd/111:45:521
3081999446,8cyclictest25-21ksoftirqd/109:31:321
3081999444,8cyclictest25-21ksoftirqd/111:02:411
3081999443,8cyclictest25-21ksoftirqd/112:51:471
3081999443,8cyclictest25-21ksoftirqd/110:56:341
30819994420,12cyclictest25-21ksoftirqd/111:06:501
3081999441,9cyclictest25-21ksoftirqd/111:31:351
30819994418,7cyclictest25-21ksoftirqd/112:56:421
30819994417,7cyclictest25-21ksoftirqd/109:11:531
30819994417,7cyclictest25-21ksoftirqd/108:56:311
30819994417,7cyclictest25-21ksoftirqd/108:31:451
30819994416,7cyclictest25-21ksoftirqd/112:26:131
30819994412,9cyclictest25-21ksoftirqd/110:33:131
30819994411,9cyclictest25-21ksoftirqd/109:16:481
3081099444,34cyclictest0-21swapper/013:06:480
3081999436,7cyclictest32633-21apt09:11:311
3081999435,8cyclictest25-21ksoftirqd/108:56:501
3081999435,8cyclictest25-21ksoftirqd/108:56:501
30819994320,10cyclictest25-21ksoftirqd/112:16:591
3081099432,6cyclictest0-21swapper/010:06:440
3060724324,8sleep00-21swapper/008:00:130
3081999427,4cyclictest25-21ksoftirqd/108:36:591
3081999425,10cyclictest20774-21munin-run08:46:301
30819994216,7cyclictest25-21ksoftirqd/112:06:511
3081999420,7cyclictest22606-21sort09:56:481
3081099423,8cyclictest27090-21ssh10:36:450
3081099421,5cyclictest0-21swapper/011:01:440
30810994215,24cyclictest31378-21sh13:24:240
3081999411,8cyclictest25-21ksoftirqd/109:21:501
3081999407,7cyclictest25-21ksoftirqd/108:11:501
3081999405,4cyclictest25-21ksoftirqd/108:16:431
3081999404,7cyclictest25-21ksoftirqd/108:01:311
30819994013,4cyclictest25-21ksoftirqd/109:41:461
3081099402,32cyclictest0-21swapper/008:11:410
3081099401,5cyclictest0-21swapper/011:26:460
30810994012,24cyclictest21135-21sort08:46:440
106891400,1ptp4l401ktimersoftd/309:11:433
3081099393,6cyclictest10025-21apt-get09:31:430
3081099392,8cyclictest1036-21ssh12:21:490
3081099391,6cyclictest0-21swapper/013:26:490
3081099391,5cyclictest0-21swapper/009:41:450
30810993911,24cyclictest9177-21acpi08:21:420
30810993911,24cyclictest25967-21cpuspeed_turbos08:56:440
30810993911,24cyclictest25967-21cpuspeed_turbos08:56:440
106891390,1ptp4l401ktimersoftd/313:08:283
106891390,1ptp4l401ktimersoftd/312:35:283
106891390,1ptp4l401ktimersoftd/312:35:283
106891390,1ptp4l401ktimersoftd/312:14:133
106891390,1ptp4l401ktimersoftd/312:06:373
106891390,1ptp4l401ktimersoftd/310:29:383
3081099382,5cyclictest0-21swapper/008:36:420
3081099382,33cyclictest309-21grep11:46:590
3081099381,9cyclictest8242-21apt-get13:01:480
3081099381,4cyclictest0-21swapper/011:51:460
30810993811,23cyclictest22465-21grep12:42:040
106891380,1ptp4l401ktimersoftd/313:04:273
106891380,1ptp4l401ktimersoftd/313:00:223
106891380,1ptp4l401ktimersoftd/312:40:403
106891380,1ptp4l401ktimersoftd/311:57:203
106891380,1ptp4l401ktimersoftd/311:29:473
106891380,1ptp4l401ktimersoftd/311:03:083
106891380,1ptp4l401ktimersoftd/310:44:133
106891380,1ptp4l401ktimersoftd/310:44:133
106891380,0ptp4l401ktimersoftd/310:52:053
106891380,0ptp4l401ktimersoftd/310:48:383
98252370,5sleep03081099cyclictest10:18:030
3081099372,6cyclictest7638-21apt-get09:26:430
3081099371,9cyclictest22301-21apt-get09:56:440
30810993712,22cyclictest24370-21diskmemload12:02:420
30810993712,22cyclictest24370-21diskmemload11:18:130
106891370,1ptp4l401ktimersoftd/313:16:203
106891370,1ptp4l401ktimersoftd/311:37:063
106891370,1ptp4l401ktimersoftd/311:12:303
106891370,1ptp4l401ktimersoftd/311:07:083
106891370,1ptp4l401ktimersoftd/310:37:103
106891370,1ptp4l401ktimersoftd/310:36:033
106891370,1ptp4l401ktimersoftd/310:22:453
106891370,1ptp4l401ktimersoftd/310:06:323
3081099369,3cyclictest24895-21kworker/0:010:01:480
3081099363,7cyclictest6863-21apt-get08:16:410
3081099363,6cyclictest26492-21apt-get11:41:470
3081099363,10cyclictest13979-21apt-get08:31:420
3081099362,5cyclictest3312-21apt-get12:56:480
30810993612,21cyclictest24370-21diskmemload11:26:010
30810993611,22cyclictest1055-21runrttasks11:15:130
106891360,2ptp4l25453-21kworker/3:111:45:503
106891360,2ptp4l25274-21kworker/3:008:53:273
106891360,1ptp4l401ktimersoftd/311:34:333
106891360,1ptp4l401ktimersoftd/309:51:023
106891360,1ptp4l401ktimersoftd/308:09:013
106891360,0ptp4l401ktimersoftd/312:45:573
3081099359,4cyclictest25592-21sort08:56:310
3081099359,4cyclictest1055-21runrttasks12:16:230
3081099358,4cyclictest5741-21phc2sys10:46:570
3081099358,3cyclictest19070-21seq09:50:170
3081099353,5cyclictest12041-21gltestperf08:26:460
3081099353,4cyclictest0-21swapper/008:01:550
30810993513,19cyclictest1512-21memory09:11:510
30810993510,4cyclictest24370-21diskmemload12:08:150
30810993510,3cyclictest27310-21timerwakeupswit12:47:060
3081099350,33cyclictest0-21swapper/013:19:210
106891350,2ptp4l25274-21kworker/3:009:37:003
106891350,2ptp4l22122-21kworker/3:112:47:553
106891350,2ptp4l1001-21kworker/3:208:24:483
106891350,12ptp4l401ktimersoftd/310:14:573
3081099349,4cyclictest19392-21cut08:41:480
3081099348,5cyclictest24370-21diskmemload11:39:330
3081099348,5cyclictest15381-21cron12:41:310
3081099341,8cyclictest12642-21sed12:32:060
3081099341,8cyclictest12642-21sed12:32:060
106891340,2ptp4l22122-21kworker/3:113:19:423
3081099338,3cyclictest28845-21fschecks_count12:16:520
3081099337,3cyclictest21909-21latency_hist10:31:330
3081099336,3cyclictest18642-21basename13:11:540
3081099332,5cyclictest12386-21apt-get09:36:420
3081099331,8cyclictest15118-21irqrtprio10:56:510
3081099331,10cyclictest20369-21irqrtprio09:51:510
3081099330,9cyclictest498-21ssh10:41:510
3081099330,9cyclictest498-21ssh10:41:510
106891330,1ptp4l401ktimersoftd/308:26:583
106891330,10ptp4l401ktimersoftd/310:19:483
3081099328,3cyclictest30845-21entropy12:51:510
3081099325,5cyclictest6412-21sed12:26:520
3081099325,5cyclictest6412-21sed12:26:520
3081099325,3cyclictest1444-21proc_pri08:06:310
3081099321,10cyclictest28325-21tr09:01:450
30810993210,4cyclictest9-21ksoftirqd/009:20:340
106891320,9ptp4l401ktimersoftd/309:06:473
106891320,1ptp4l401ktimersoftd/309:27:443
106891320,1ptp4l401ktimersoftd/308:16:543
30824993125,3cyclictest33-21ksoftirqd/209:51:332
30824993124,4cyclictest33-21ksoftirqd/212:21:562
3081099314,4cyclictest24987-21irqrtprio11:06:530
3081099312,4cyclictest0-21swapper/009:11:310
106891310,1ptp4l401ktimersoftd/309:52:523
106891310,1ptp4l401ktimersoftd/309:45:553
106891310,1ptp4l401ktimersoftd/309:03:593
30824993023,4cyclictest33-21ksoftirqd/208:06:482
30824993023,3cyclictest33-21ksoftirqd/210:01:342
30824993022,4cyclictest33-21ksoftirqd/213:11:482
3081099301,5cyclictest5574-21fschecks_count09:21:460
30824992924,3cyclictest33-21ksoftirqd/210:51:342
30831992823,3cyclictest41-21ksoftirqd/308:51:313
30824992823,3cyclictest33-21ksoftirqd/213:06:552
30824992823,3cyclictest33-21ksoftirqd/210:26:462
30824992822,3cyclictest27884-21cron09:01:312
30824992822,3cyclictest27884-21cron09:01:312
30824992821,4cyclictest33-21ksoftirqd/209:31:322
30824992813,12cyclictest33-21ksoftirqd/209:16:072
3082499276,14cyclictest5922-21ssh12:26:472
3082499276,14cyclictest5922-21ssh12:26:472
30824992721,3cyclictest33-21ksoftirqd/211:51:532
30824992720,4cyclictest33-21ksoftirqd/208:38:132
30824992718,6cyclictest33-21ksoftirqd/208:51:312
106891270,0ptp4l401ktimersoftd/309:25:413
30831992621,3cyclictest41-21ksoftirqd/312:51:473
30831992620,3cyclictest41-21ksoftirqd/309:16:443
30824992621,3cyclictest33-21ksoftirqd/211:26:352
30824992621,3cyclictest33-21ksoftirqd/211:06:492
30824992621,3cyclictest33-21ksoftirqd/210:16:562
30824992620,3cyclictest33-21ksoftirqd/212:01:352
30824992620,3cyclictest33-21ksoftirqd/211:20:542
30824992620,3cyclictest33-21ksoftirqd/209:09:522
30824992620,3cyclictest33-21ksoftirqd/208:22:042
30824992619,4cyclictest33-21ksoftirqd/209:51:442
30824992619,4cyclictest33-21ksoftirqd/209:25:402
30824992619,4cyclictest33-21ksoftirqd/208:43:552
30824992618,4cyclictest33-21ksoftirqd/213:21:422
3046022620,3sleep233-21ksoftirqd/212:51:472
106891260,1ptp4l401ktimersoftd/308:44:323
106891260,0ptp4l401ktimersoftd/308:31:323
30831992519,3cyclictest41-21ksoftirqd/308:15:583
3082499255,13cyclictest2436-21ssh10:11:432
30824992520,3cyclictest33-21ksoftirqd/213:05:402
30824992520,3cyclictest33-21ksoftirqd/208:51:482
30824992519,3cyclictest33-21ksoftirqd/208:12:522
30824992518,4cyclictest33-21ksoftirqd/213:31:292
30824992513,8cyclictest20612-21/usr/sbin/munin12:41:472
106891250,1ptp4l401ktimersoftd/310:00:103
106891250,1ptp4l401ktimersoftd/309:32:493
3082499246,12cyclictest23038-21ssh13:16:502
30824992419,3cyclictest33-21ksoftirqd/212:16:522
30824992419,3cyclictest33-21ksoftirqd/210:51:502
30824992419,3cyclictest33-21ksoftirqd/209:31:482
30824992418,3cyclictest33-21ksoftirqd/210:10:512
30824992418,3cyclictest33-21ksoftirqd/208:19:372
30824992417,4cyclictest33-21ksoftirqd/212:47:572
30824992417,4cyclictest33-21ksoftirqd/209:42:492
145291241,3phc2sys18564-21latency_hist08:41:313
106891240,1ptp4l401ktimersoftd/308:56:463
106891240,1ptp4l401ktimersoftd/308:56:463
106891240,1ptp4l401ktimersoftd/308:01:343
30824992318,3cyclictest33-21ksoftirqd/210:41:512
30824992318,3cyclictest33-21ksoftirqd/210:41:512
30824992317,3cyclictest33-21ksoftirqd/210:21:502
30824992316,4cyclictest33-21ksoftirqd/212:57:122
30824992316,4cyclictest33-21ksoftirqd/208:34:262
30824992312,9cyclictest33-21ksoftirqd/211:49:302
3082499226,11cyclictest12404-21switchtime12:32:052
3082499226,11cyclictest12404-21switchtime12:32:052
30824992217,3cyclictest33-21ksoftirqd/212:07:032
30824992217,3cyclictest33-21ksoftirqd/211:13:372
30824992217,3cyclictest33-21ksoftirqd/209:36:462
30824992217,3cyclictest33-21ksoftirqd/208:31:302
30824992217,3cyclictest33-21ksoftirqd/208:06:302
30824992216,3cyclictest33-21ksoftirqd/212:13:042
30824992216,3cyclictest33-21ksoftirqd/210:31:382
30824992216,3cyclictest33-21ksoftirqd/209:19:182
30824992214,5cyclictest22433-21tr09:56:452
201952220,4sleep2321ktimersoftd/212:41:272
30824992116,3cyclictest33-21ksoftirqd/211:29:042
30824992116,3cyclictest33-21ksoftirqd/210:36:522
30824992115,3cyclictest33-21ksoftirqd/212:02:522
30824992114,4cyclictest26403-21sh11:41:462
30824992013,4cyclictest28961-21sed09:01:502
30824991912,4cyclictest18124-21ssh11:32:022
30824991912,4cyclictest16506-21sh10:57:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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