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2026-04-13 - 15:39
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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 highest latencies:
System rackbslot6.osadl.org (updated Mon Apr 13, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911090,4ptp4l401ktimersoftd/308:12:533
171732650,5sleep04667-1kworker/u9:011:42:550
2595996457,4cyclictest25-21ksoftirqd/111:17:481
70962630,2sleep00-21swapper/009:32:470
3842630,2sleep10-21swapper/113:37:351
2602996349,7cyclictest33-21ksoftirqd/210:57:482
174162620,3sleep30-21swapper/311:10:423
2595996153,4cyclictest25-21ksoftirqd/112:52:511
224262570,2sleep20-21swapper/210:42:552
21762564,40sleep00-21swapper/008:13:290
301752540,1sleep30-21swapper/310:51:153
2595995444,6cyclictest25-21ksoftirqd/111:02:481
91342530,2sleep228144-21diskmemload12:07:502
2602995136,7cyclictest33-21ksoftirqd/213:37:522
2602995136,7cyclictest33-21ksoftirqd/213:37:522
2595995142,5cyclictest25-21ksoftirqd/108:47:451
2602994937,7cyclictest33-21ksoftirqd/209:02:462
2602994834,6cyclictest33-21ksoftirqd/211:37:512
2595994736,6cyclictest25-21ksoftirqd/112:17:511
2595994736,6cyclictest25-21ksoftirqd/110:42:471
2595994734,6cyclictest25-21ksoftirqd/110:17:481
261199432,30cyclictest11794-21cat11:37:523
2595994331,5cyclictest25-21ksoftirqd/111:52:511
2595994231,5cyclictest25-21ksoftirqd/108:17:431
261199391,23cyclictest6284-21/usr/sbin/munin12:37:593
261199391,23cyclictest13743-21/usr/sbin/munin12:12:573
106891390,1ptp4l401ktimersoftd/312:28:023
106891390,1ptp4l401ktimersoftd/311:23:273
261199383,29cyclictest31404-21apt-get11:57:493
261199383,29cyclictest31404-21apt-get11:57:493
106891380,1ptp4l401ktimersoftd/313:18:103
106891380,1ptp4l401ktimersoftd/313:01:473
106891380,1ptp4l401ktimersoftd/312:56:303
106891380,0ptp4l401ktimersoftd/313:16:293
106891380,0ptp4l401ktimersoftd/310:36:223
261199372,32cyclictest13415-21gltestperf08:37:483
261199370,2cyclictest0-21swapper/308:46:003
2595993725,5cyclictest25-21ksoftirqd/109:42:461
106891370,1ptp4l401ktimersoftd/313:28:323
106891370,1ptp4l401ktimersoftd/312:48:363
106891370,1ptp4l401ktimersoftd/312:44:263
106891370,1ptp4l401ktimersoftd/312:17:563
106891370,1ptp4l401ktimersoftd/311:48:483
106891370,1ptp4l401ktimersoftd/311:46:473
106891370,1ptp4l401ktimersoftd/311:31:483
106891370,1ptp4l401ktimersoftd/311:19:083
106891370,1ptp4l401ktimersoftd/311:13:013
106891370,1ptp4l401ktimersoftd/310:57:323
106891370,1ptp4l401ktimersoftd/310:41:333
106891370,1ptp4l401ktimersoftd/310:24:423
106891370,1ptp4l401ktimersoftd/310:22:263
261199363,25cyclictest8273-21apt-get08:27:443
261199362,27cyclictest5858-21apt-get13:42:523
261199361,31cyclictest18601-21cut13:22:533
106891360,1ptp4l401ktimersoftd/313:37:323
106891360,1ptp4l401ktimersoftd/312:24:283
106891360,1ptp4l401ktimersoftd/312:12:373
106891360,1ptp4l401ktimersoftd/312:04:523
106891360,1ptp4l401ktimersoftd/310:28:363
106891360,1ptp4l401ktimersoftd/309:27:573
106891360,0ptp4l401ktimersoftd/313:37:473
106891360,0ptp4l401ktimersoftd/313:37:473
106891360,0ptp4l401ktimersoftd/312:35:493
106891360,0ptp4l401ktimersoftd/311:01:003
261199352,27cyclictest20120-21apt-get08:52:453
261199350,2cyclictest0-21swapper/309:58:063
261199350,2cyclictest0-21swapper/309:58:063
2602993525,5cyclictest33-21ksoftirqd/211:27:482
2602993523,6cyclictest33-21ksoftirqd/212:27:492
2595993524,6cyclictest25-21ksoftirqd/113:02:511
106891350,1ptp4l401ktimersoftd/310:13:263
106891350,1ptp4l401ktimersoftd/309:52:453
261199342,25cyclictest9265-21apt-get09:37:493
261199342,25cyclictest24851-21apt-get09:02:463
261199342,25cyclictest21325-21apt-get10:02:483
261199342,25cyclictest21325-21apt-get10:02:483
2611993414,17cyclictest21292-21sh10:42:393
261199340,3cyclictest59742sleep313:08:583
2602993423,5cyclictest33-21ksoftirqd/210:32:492
2595993427,4cyclictest25-21ksoftirqd/110:32:561
17982340,4sleep2260299cyclictest10:54:232
261199332,25cyclictest23706-21apt-get10:07:473
261199332,25cyclictest23706-21apt-get10:07:473
261199332,25cyclictest14014-21apt-get09:47:463
261199331,29cyclictest13210-21sed09:43:033
2611993311,18cyclictest10427-21mailstats11:02:593
261199330,4cyclictest819-21ssh13:03:423
261199330,2cyclictest0-21swapper/309:12:493
261199330,2cyclictest0-21swapper/308:33:003
2602993328,3cyclictest33-21ksoftirqd/212:52:392
2602993327,3cyclictest33-21ksoftirqd/209:27:342
2602993327,3cyclictest33-21ksoftirqd/208:37:322
260299331,3cyclictest131rcu_sched08:22:322
2602993311,19cyclictest33-21ksoftirqd/211:47:512
2595993329,2cyclictest25-21ksoftirqd/111:22:511
2595993328,3cyclictest25-21ksoftirqd/109:27:341
2595993327,3cyclictest25-21ksoftirqd/110:02:351
2595993327,3cyclictest25-21ksoftirqd/110:02:351
2595993326,5cyclictest25-21ksoftirqd/112:58:091
106891330,1ptp4l401ktimersoftd/311:37:193
2611993212,17cyclictest29172-21sh11:54:323
2602993227,3cyclictest33-21ksoftirqd/212:43:072
2602993227,3cyclictest33-21ksoftirqd/211:22:362
2602993221,5cyclictest33-21ksoftirqd/212:57:512
2595993227,3cyclictest25-21ksoftirqd/112:32:381
2595993226,3cyclictest25-21ksoftirqd/111:32:481
2595993226,3cyclictest25-21ksoftirqd/110:52:361
2595993226,3cyclictest25-21ksoftirqd/109:22:341
2595993221,5cyclictest25-21ksoftirqd/108:32:451
261199318,19cyclictest32760-21sed09:17:513
261199310,2cyclictest0-21swapper/308:47:443
2602993126,3cyclictest33-21ksoftirqd/211:32:502
2602993125,3cyclictest33-21ksoftirqd/212:32:522
2602993125,3cyclictest33-21ksoftirqd/211:07:492
2602993125,3cyclictest33-21ksoftirqd/210:27:532
2602993125,3cyclictest33-21ksoftirqd/209:22:342
2595993126,3cyclictest25-21ksoftirqd/111:43:011
2595993126,3cyclictest25-21ksoftirqd/109:57:341
2595993125,3cyclictest25-21ksoftirqd/112:12:511
2595993124,4cyclictest25-21ksoftirqd/113:12:511
2595993116,7cyclictest241ktimersoftd/108:57:441
6792302,17sleep2700-21awk08:12:462
261199301,26cyclictest6527-21ps08:22:503
261199301,23cyclictest0-21swapper/309:22:463
261199300,2cyclictest0-21swapper/308:57:523
261199300,26cyclictest4944-21latency_hist08:22:323
260299305,15cyclictest5860-21ssh13:42:512
2602993025,3cyclictest33-21ksoftirqd/213:12:512
2602993025,3cyclictest33-21ksoftirqd/211:57:372
2602993024,3cyclictest33-21ksoftirqd/213:07:392
2602993024,3cyclictest33-21ksoftirqd/211:47:372
2595993025,3cyclictest25-21ksoftirqd/113:42:401
2595993025,3cyclictest25-21ksoftirqd/113:42:401
2595993025,3cyclictest25-21ksoftirqd/110:02:521
2595993025,3cyclictest25-21ksoftirqd/110:02:521
2595993024,3cyclictest25-21ksoftirqd/113:22:531
2595993024,3cyclictest25-21ksoftirqd/113:08:081
2595993019,9cyclictest25-21ksoftirqd/110:13:041
2595993019,5cyclictest25-21ksoftirqd/108:22:451
5752295,10sleep10-21swapper/108:12:451
261199291,24cyclictest7620-21cut09:32:523
261199290,2cyclictest0-21swapper/309:07:573
2602992923,3cyclictest33-21ksoftirqd/213:12:392
2602992923,3cyclictest33-21ksoftirqd/210:47:542
2602992923,3cyclictest33-21ksoftirqd/210:22:552
2602992923,3cyclictest33-21ksoftirqd/209:42:342
2602992923,3cyclictest33-21ksoftirqd/208:57:332
2602992923,3cyclictest33-21ksoftirqd/208:47:512
2602992922,3cyclictest33-21ksoftirqd/210:37:552
259599294,3cyclictest121rcu_preempt11:17:371
259599294,3cyclictest121rcu_preempt11:07:491
2595992924,3cyclictest25-21ksoftirqd/112:52:391
2595992924,3cyclictest25-21ksoftirqd/111:57:501
2595992924,3cyclictest25-21ksoftirqd/111:57:501
2595992924,3cyclictest25-21ksoftirqd/111:52:371
2595992924,3cyclictest25-21ksoftirqd/109:48:031
2595992923,3cyclictest25-21ksoftirqd/113:28:091
2595992923,3cyclictest25-21ksoftirqd/112:27:381
2595992923,3cyclictest25-21ksoftirqd/111:27:491
2595992922,5cyclictest25-21ksoftirqd/112:32:551
2595992922,4cyclictest25-21ksoftirqd/110:57:591
2602992824,3cyclictest33-21ksoftirqd/212:27:382
2602992823,3cyclictest33-21ksoftirqd/208:57:512
2602992822,4cyclictest33-21ksoftirqd/209:52:482
2602992822,3cyclictest33-21ksoftirqd/213:27:592
2602992822,3cyclictest33-21ksoftirqd/211:27:362
2602992822,3cyclictest33-21ksoftirqd/211:13:062
2602992822,3cyclictest33-21ksoftirqd/209:42:532
2602992822,3cyclictest33-21ksoftirqd/208:27:492
2595992823,3cyclictest25-21ksoftirqd/112:42:491
2595992823,3cyclictest25-21ksoftirqd/110:57:361
2595992823,3cyclictest25-21ksoftirqd/110:22:591
2595992823,3cyclictest25-21ksoftirqd/109:37:531
2595992823,3cyclictest25-21ksoftirqd/109:12:501
2590992822,3cyclictest9-21ksoftirqd/010:47:360
2602992722,3cyclictest33-21ksoftirqd/212:53:082
2602992722,3cyclictest33-21ksoftirqd/212:17:572
2602992722,3cyclictest33-21ksoftirqd/212:12:502
2602992722,3cyclictest33-21ksoftirqd/210:17:552
2602992722,3cyclictest33-21ksoftirqd/210:07:352
2602992722,3cyclictest33-21ksoftirqd/210:07:352
2602992722,3cyclictest33-21ksoftirqd/209:17:342
2602992722,3cyclictest33-21ksoftirqd/208:22:342
2602992721,3cyclictest33-21ksoftirqd/213:17:502
2602992721,3cyclictest33-21ksoftirqd/209:37:342
2595992722,3cyclictest47050irq/101-ens3-Tx12:40:401
2595992722,3cyclictest25-21ksoftirqd/111:38:501
2595992722,3cyclictest25-21ksoftirqd/110:27:561
2595992722,3cyclictest25-21ksoftirqd/109:32:501
2595992722,3cyclictest25-21ksoftirqd/109:07:551
2595992722,3cyclictest25-21ksoftirqd/109:07:341
2595992721,4cyclictest25-21ksoftirqd/113:42:511
2595992721,3cyclictest25-21ksoftirqd/113:17:391
2595992721,3cyclictest25-21ksoftirqd/112:02:571
2595992721,3cyclictest25-21ksoftirqd/110:07:521
2595992721,3cyclictest25-21ksoftirqd/110:07:521
2590992721,3cyclictest9-21ksoftirqd/009:07:440
2602992620,3cyclictest33-21ksoftirqd/212:02:572
2602992620,3cyclictest33-21ksoftirqd/211:07:362
2602992620,3cyclictest33-21ksoftirqd/210:12:492
2602992620,3cyclictest33-21ksoftirqd/210:07:502
2602992620,3cyclictest33-21ksoftirqd/210:07:502
2602992620,3cyclictest33-21ksoftirqd/209:57:492
2602992620,3cyclictest33-21ksoftirqd/209:57:492
2595992622,3cyclictest25-21ksoftirqd/112:07:551
2595992621,3cyclictest25-21ksoftirqd/110:37:501
2595992621,3cyclictest25-21ksoftirqd/108:32:331
259099268,3cyclictest1055-21runrttasks11:04:030
2602992520,3cyclictest33-21ksoftirqd/213:32:592
2602992520,3cyclictest33-21ksoftirqd/213:22:582
2602992520,3cyclictest33-21ksoftirqd/212:37:582
2602992520,3cyclictest33-21ksoftirqd/208:42:472
2602992515,8cyclictest33-21ksoftirqd/212:02:372
2602992515,8cyclictest33-21ksoftirqd/212:02:372
2595992520,3cyclictest25-21ksoftirqd/109:27:501
2595992520,3cyclictest25-21ksoftirqd/108:53:021
2595992519,3cyclictest25-21ksoftirqd/108:47:331
2590992520,3cyclictest9-21ksoftirqd/008:52:330
2590992519,3cyclictest9-21ksoftirqd/010:12:340
2590992519,3cyclictest9-21ksoftirqd/010:12:340
2590992518,4cyclictest9-21ksoftirqd/009:50:420
2602992417,4cyclictest33-21ksoftirqd/209:11:212
2595992419,3cyclictest25-21ksoftirqd/108:37:501
2590992419,3cyclictest9-21ksoftirqd/013:43:000
2590992418,3cyclictest9-21ksoftirqd/009:53:150
2590992418,3cyclictest9-21ksoftirqd/008:57:020
2602992319,3cyclictest33-21ksoftirqd/209:47:522
2602992318,3cyclictest33-21ksoftirqd/209:29:082
2602992317,3cyclictest33-21ksoftirqd/208:37:382
2590992317,3cyclictest9-21ksoftirqd/009:45:170
2590992317,3cyclictest9-21ksoftirqd/008:59:010
2590992316,4cyclictest9-21ksoftirqd/009:32:190
2590992316,4cyclictest9-21ksoftirqd/008:35:420
2590992217,3cyclictest9-21ksoftirqd/012:22:100
2590992216,3cyclictest9-21ksoftirqd/009:37:530
2590992216,3cyclictest9-21ksoftirqd/009:03:400
2590992216,3cyclictest9-21ksoftirqd/008:26:050
2590992214,5cyclictest46950irq/100-ens3-Tx12:37:510
2590992214,5cyclictest4207-21run-parts09:27:340
259099213,15cyclictest23375-21unixbench_singl11:48:080
259099213,10cyclictest11286-21ssh12:42:500
259099212,16cyclictest28720-21fschecks_time13:32:560
2590992116,3cyclictest9-21ksoftirqd/011:42:150
2590992116,3cyclictest9-21ksoftirqd/008:29:240
2590992115,3cyclictest2960-21find10:22:590
2590992115,3cyclictest11548-21sh13:15:030
2590992114,4cyclictest30340-21grep10:18:040
2590992114,4cyclictest20151-21phc2sys11:12:580
2590992114,4cyclictest1055-21runrttasks13:18:050
2590992113,5cyclictest27142-21irqrtprio10:47:540
2590992113,5cyclictest25735-21munin-plugin-st12:57:390
259099211,18cyclictest16634-1kworker/u9:011:11:200
259099211,17cyclictest5379-21ssh12:03:030
259099210,18cyclictest16698-21cstates10:37:500
53602200,2sleep00-21swapper/013:42:320
53602200,2sleep00-21swapper/013:42:320
2590992014,4cyclictest9-21ksoftirqd/010:14:140
2590992014,4cyclictest13253-21df08:37:460
2590992014,3cyclictest7065-21gltestperf10:27:530
2590992014,3cyclictest31703-21sh11:57:520
2590992014,3cyclictest31703-21sh11:57:520
2590992014,3cyclictest20873-21latency_hist10:02:350
2590992014,3cyclictest20873-21latency_hist10:02:350
2590992013,4cyclictest28144-21diskmemload11:53:470
2590992013,4cyclictest28144-21diskmemload11:02:350
2590992013,4cyclictest26700-21/usr/sbin/munin12:57:570
2590992013,4cyclictest15622-21sh08:42:470
259099201,16cyclictest11689-21cut10:32:500
52132190,2sleep00-21swapper/013:08:070
2590991914,3cyclictest9-21ksoftirqd/012:27:440
2590991914,3cyclictest9-21ksoftirqd/011:32:500
2590991914,3cyclictest25059-21sh11:17:580
2590991914,3cyclictest19753-21ptp4l13:23:020
2590991913,4cyclictest9-21ksoftirqd/010:04:390
2590991913,4cyclictest9-21ksoftirqd/010:04:390
2590991913,4cyclictest15636-21head12:13:070
2590991913,3cyclictest31897-21/usr/sbin/munin09:17:560
2590991913,3cyclictest31425-21sh10:52:370
2590991913,3cyclictest28972-21/usr/sbin/munin11:22:520
2590991912,4cyclictest3093-21cat08:17:450
2590991912,4cyclictest28144-21diskmemload12:50:150
2590991912,4cyclictest28144-21diskmemload12:32:460
2590991912,4cyclictest28144-21diskmemload12:23:580
259099190,16cyclictest28144-21diskmemload12:09:190
259099183,9cyclictest23421-21apt-get13:27:530
2590991813,3cyclictest31167-21unixbench-2d09:13:020
2590991811,4cyclictest31751-21if_err_ens313:02:570
2590991811,4cyclictest3108-21switchtime11:28:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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