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2026-09-18 - 17:18
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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 Fri Sep 18, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2906521570,5sleep12763099cyclictest13:32:031
1068911070,3ptp4l401ktimersoftd/309:40:433
250432700,2sleep10-21swapper/113:28:251
131992620,3sleep233-21ksoftirqd/213:50:062
274812614,10sleep20-21swapper/209:44:212
157852610,1sleep30-21swapper/313:51:403
129842600,5sleep341-21ksoftirqd/314:55:403
156412580,5sleep22763499cyclictest15:00:002
106891580,1ptp4l401ktimersoftd/315:11:293
6542550,2sleep10-21swapper/113:02:361
6542550,2sleep10-21swapper/113:02:361
53282550,2sleep22763499cyclictest13:07:232
325012550,2sleep30-21swapper/313:01:333
325012550,2sleep30-21swapper/313:01:333
234762550,3sleep12763099cyclictest15:06:581
72872540,2sleep20-21swapper/214:16:402
27623995447,3cyclictest9-21ksoftirqd/014:35:070
27643995347,3cyclictest41-21ksoftirqd/314:15:073
2763099512,13cyclictest5015-21/usr/sbin/munin13:40:171
240392500,2sleep30-21swapper/312:20:063
27643994842,3cyclictest41-21ksoftirqd/313:35:063
27643994842,3cyclictest41-21ksoftirqd/309:45:003
2763099480,12cyclictest5548-21latency_hist12:34:531
201142480,2sleep00-21swapper/012:49:540
2763099470,12cyclictest12575-21if_err_enp1s013:15:091
27623994634,6cyclictest9-21ksoftirqd/011:30:060
27643994538,4cyclictest41-21ksoftirqd/312:50:043
27623994538,3cyclictest0-21swapper/009:44:490
2763099446,5cyclictest25-21ksoftirqd/115:13:531
106891440,1ptp4l401ktimersoftd/313:22:183
106891440,1ptp4l401ktimersoftd/313:14:253
27643994236,3cyclictest41-21ksoftirqd/314:00:063
27643994235,4cyclictest41-21ksoftirqd/310:35:023
27643994235,4cyclictest41-21ksoftirqd/310:25:023
27643994235,4cyclictest41-21ksoftirqd/310:15:013
27643994235,3cyclictest41-21ksoftirqd/309:55:013
27643994131,7cyclictest40092irq/92-enp1s0-T14:40:073
2763099416,5cyclictest25-21ksoftirqd/112:58:191
106891410,1ptp4l401ktimersoftd/313:15:073
27643994033,4cyclictest41-21ksoftirqd/314:05:073
2764399401,2cyclictest121rcu_preempt13:25:173
27634994020,18cyclictest33-21ksoftirqd/213:35:212
2763099401,10cyclictest2428-21mailstats14:45:191
2763099401,10cyclictest2428-21mailstats14:45:191
106891400,1ptp4l401ktimersoftd/312:31:103
106891400,1ptp4l401ktimersoftd/311:00:073
106891400,0ptp4l401ktimersoftd/314:20:243
27643993924,4cyclictest41-21ksoftirqd/313:40:083
27634993929,5cyclictest33-21ksoftirqd/214:40:082
2763099396,5cyclictest25-21ksoftirqd/114:08:561
2763099396,5cyclictest25-21ksoftirqd/112:44:591
106891390,1ptp4l401ktimersoftd/315:02:543
106891390,1ptp4l401ktimersoftd/312:45:243
106891390,1ptp4l401ktimersoftd/312:42:163
27643993832,3cyclictest41-21ksoftirqd/314:50:013
27643993819,15cyclictest41-21ksoftirqd/310:40:213
2763099382,7cyclictest25-21ksoftirqd/112:02:191
2763099382,5cyclictest0-21swapper/112:50:581
106891380,1ptp4l401ktimersoftd/315:06:143
106891380,1ptp4l401ktimersoftd/314:26:263
106891380,1ptp4l401ktimersoftd/312:56:233
106891380,1ptp4l401ktimersoftd/312:18:573
106891380,1ptp4l401ktimersoftd/312:14:233
106891380,1ptp4l401ktimersoftd/312:07:453
106891380,1ptp4l401ktimersoftd/312:02:113
106891380,1ptp4l401ktimersoftd/311:52:183
106891380,1ptp4l401ktimersoftd/311:46:343
106891380,1ptp4l401ktimersoftd/311:10:063
106891380,1ptp4l401ktimersoftd/311:10:063
106891380,1ptp4l401ktimersoftd/310:55:103
106891380,0ptp4l401ktimersoftd/314:37:573
27643993731,3cyclictest41-21ksoftirqd/311:25:023
27643993725,10cyclictest41-21ksoftirqd/314:30:123
2763099375,7cyclictest0-21swapper/109:55:091
106891370,1ptp4l401ktimersoftd/314:45:583
106891370,1ptp4l401ktimersoftd/314:45:583
106891370,1ptp4l401ktimersoftd/314:14:283
106891370,1ptp4l401ktimersoftd/313:47:093
106891370,1ptp4l401ktimersoftd/313:31:013
106891370,1ptp4l401ktimersoftd/312:27:503
106891370,1ptp4l401ktimersoftd/311:55:293
27634993626,6cyclictest33-21ksoftirqd/214:50:072
27634993622,11cyclictest33-21ksoftirqd/214:04:562
27643993529,3cyclictest41-21ksoftirqd/313:55:133
27643993529,3cyclictest41-21ksoftirqd/310:49:553
27634993529,3cyclictest31850-21latency_hist10:59:512
2763499350,3cyclictest121rcu_preempt15:12:392
2763099358,5cyclictest25-21ksoftirqd/112:21:151
2763099355,5cyclictest25-21ksoftirqd/114:22:311
255832350,6sleep10-21swapper/109:40:031
106891350,0ptp4l401ktimersoftd/312:36:353
27643993428,3cyclictest41-21ksoftirqd/313:09:543
27643993427,4cyclictest41-21ksoftirqd/311:24:513
2763099345,13cyclictest389-21ssh14:44:381
2763099340,9cyclictest10945-21timerwakeupswit11:20:201
27634993327,3cyclictest33-21ksoftirqd/211:54:522
27623993328,3cyclictest9-21ksoftirqd/014:34:560
27623993328,3cyclictest9-21ksoftirqd/010:44:500
27623993327,3cyclictest9-21ksoftirqd/012:49:540
27623993327,3cyclictest9-21ksoftirqd/010:14:500
106891330,11ptp4l401ktimersoftd/311:31:393
27643993226,3cyclictest41-21ksoftirqd/310:05:183
27643993225,3cyclictest41-21ksoftirqd/309:49:523
2763099327,19cyclictest0-21swapper/112:15:031
2763099324,17cyclictest21196-21diskmemload13:52:311
2763099320,20cyclictest0-21swapper/111:05:011
27623993226,3cyclictest9-21ksoftirqd/011:14:510
27623993226,3cyclictest9-21ksoftirqd/011:14:510
27623993226,3cyclictest9-21ksoftirqd/010:59:510
106891320,0ptp4l401ktimersoftd/310:10:503
2764399318,3cyclictest41-21ksoftirqd/311:44:533
27634993125,3cyclictest33-21ksoftirqd/212:00:112
2763099317,7cyclictest25-21ksoftirqd/115:03:161
27630993112,7cyclictest25-21ksoftirqd/110:22:511
27623993126,3cyclictest9-21ksoftirqd/014:54:570
27623993125,3cyclictest9-21ksoftirqd/014:14:560
27623993119,5cyclictest9-21ksoftirqd/014:55:080
201522310,26sleep020440-21apt-config15:04:570
106891310,1ptp4l401ktimersoftd/310:47:323
27643993025,3cyclictest41-21ksoftirqd/310:34:513
27634993025,3cyclictest33-21ksoftirqd/214:49:562
27634993025,3cyclictest33-21ksoftirqd/214:49:562
27634993025,3cyclictest33-21ksoftirqd/212:19:542
27634993024,3cyclictest33-21ksoftirqd/211:39:522
2763099309,5cyclictest25-21ksoftirqd/113:35:071
2763099302,15cyclictest8618-21ssh14:51:501
2763099301,15cyclictest19066-21apt-get14:30:081
27630993010,6cyclictest25-21ksoftirqd/112:40:311
2763099300,16cyclictest21196-21diskmemload11:49:341
27623993025,3cyclictest9-21ksoftirqd/012:34:530
27623993025,3cyclictest9-21ksoftirqd/012:15:040
27623993025,3cyclictest9-21ksoftirqd/011:40:120
27623993019,8cyclictest11605-21ssh12:06:280
106891300,1ptp4l401ktimersoftd/311:39:313
27643992924,3cyclictest41-21ksoftirqd/311:05:083
27643992924,3cyclictest41-21ksoftirqd/310:00:173
2763499293,3cyclictest121rcu_preempt12:40:222
27634992924,3cyclictest33-21ksoftirqd/211:49:532
27634992924,3cyclictest33-21ksoftirqd/210:45:062
27634992923,3cyclictest33-21ksoftirqd/214:55:142
27634992923,3cyclictest33-21ksoftirqd/213:10:232
27634992923,3cyclictest33-21ksoftirqd/213:00:112
27634992923,3cyclictest33-21ksoftirqd/213:00:112
27634992923,3cyclictest33-21ksoftirqd/212:49:542
27634992923,3cyclictest33-21ksoftirqd/211:15:092
27634992923,3cyclictest33-21ksoftirqd/211:15:092
27634992923,3cyclictest33-21ksoftirqd/210:14:502
27634992922,4cyclictest33-21ksoftirqd/211:09:512
2763099297,8cyclictest25-21ksoftirqd/114:02:421
2763099296,6cyclictest25-21ksoftirqd/109:50:121
2763099294,8cyclictest14758-21snmpd11:56:481
27630992910,7cyclictest25-21ksoftirqd/114:28:551
27623992924,3cyclictest9-21ksoftirqd/014:49:560
27623992924,3cyclictest9-21ksoftirqd/014:49:560
27623992924,3cyclictest9-21ksoftirqd/013:55:070
27623992924,3cyclictest9-21ksoftirqd/011:49:530
27623992924,3cyclictest9-21ksoftirqd/010:49:510
27623992924,3cyclictest9-21ksoftirqd/010:19:500
27623992924,3cyclictest9-21ksoftirqd/010:00:050
27623992923,3cyclictest9-21ksoftirqd/015:05:150
27623992923,3cyclictest9-21ksoftirqd/013:35:130
27623992923,3cyclictest9-21ksoftirqd/012:00:210
27623992923,3cyclictest9-21ksoftirqd/011:54:520
27623992922,5cyclictest9-21ksoftirqd/012:35:210
27623992922,3cyclictest9-21ksoftirqd/014:25:130
27623992920,7cyclictest9-21ksoftirqd/014:15:110
27623992919,5cyclictest9-21ksoftirqd/013:45:070
27623992919,4cyclictest9-21ksoftirqd/012:40:040
2764399284,16cyclictest12740-21apt-get10:20:023
27643992823,3cyclictest41-21ksoftirqd/311:15:193
27643992823,3cyclictest41-21ksoftirqd/311:15:193
27634992823,3cyclictest33-21ksoftirqd/214:25:132
27634992823,3cyclictest33-21ksoftirqd/213:30:122
27634992822,3cyclictest33-21ksoftirqd/211:55:082
27634992822,3cyclictest33-21ksoftirqd/210:19:502
27634992810,6cyclictest33-21ksoftirqd/212:49:582
2763099282,9cyclictest7190-21sendmail_mailst12:35:151
2763099281,8cyclictest4047-21ssh14:14:271
27630992816,6cyclictest32357-21apt-get11:00:011
27623992823,3cyclictest9-21ksoftirqd/014:24:550
27623992823,3cyclictest9-21ksoftirqd/013:54:560
27623992823,3cyclictest9-21ksoftirqd/012:25:120
27623992822,3cyclictest9-21ksoftirqd/015:10:160
27623992822,3cyclictest9-21ksoftirqd/013:20:090
27623992822,3cyclictest9-21ksoftirqd/013:10:110
27623992822,3cyclictest9-21ksoftirqd/013:00:090
27623992822,3cyclictest9-21ksoftirqd/013:00:090
27623992822,3cyclictest9-21ksoftirqd/012:59:540
27623992822,3cyclictest9-21ksoftirqd/011:59:530
27623992822,3cyclictest9-21ksoftirqd/011:35:110
27623992822,3cyclictest9-21ksoftirqd/010:50:090
27623992822,3cyclictest9-21ksoftirqd/010:39:500
27623992822,3cyclictest9-21ksoftirqd/010:09:500
27623992821,3cyclictest9-21ksoftirqd/009:55:030
27623992816,6cyclictest9-21ksoftirqd/013:15:040
27634992722,3cyclictest33-21ksoftirqd/210:44:512
27634992721,3cyclictest33-21ksoftirqd/214:35:062
27634992721,3cyclictest33-21ksoftirqd/212:05:112
27634992720,4cyclictest33-21ksoftirqd/214:06:162
2763099279,6cyclictest25-21ksoftirqd/110:12:521
2763099277,6cyclictest25-21ksoftirqd/111:52:281
2763099277,5cyclictest25-21ksoftirqd/114:39:071
2763099276,6cyclictest25-21ksoftirqd/114:15:071
2763099276,6cyclictest25-21ksoftirqd/112:25:231
2763099272,9cyclictest31855-21munin-run10:59:511
2763099272,16cyclictest47050irq/101-ens3-Tx13:20:041
2763099271,5cyclictest241ktimersoftd/112:05:221
2763099270,14cyclictest10758-21ssh13:46:131
27623992722,3cyclictest9-21ksoftirqd/009:54:500
27623992721,3cyclictest9-21ksoftirqd/014:04:560
27623992721,3cyclictest9-21ksoftirqd/013:40:080
27623992721,3cyclictest9-21ksoftirqd/013:30:120
27623992721,3cyclictest9-21ksoftirqd/013:25:130
27623992721,3cyclictest9-21ksoftirqd/011:20:110
27623992717,5cyclictest9-21ksoftirqd/011:00:000
2762399270,7cyclictest121rcu_preempt12:20:100
2763499262,4cyclictest18132-21grep13:55:072
27634992621,3cyclictest33-21ksoftirqd/214:10:152
27634992621,3cyclictest33-21ksoftirqd/213:40:142
27634992621,3cyclictest33-21ksoftirqd/212:20:112
27634992621,3cyclictest33-21ksoftirqd/211:44:522
27634992621,3cyclictest33-21ksoftirqd/211:25:032
27634992620,3cyclictest33-21ksoftirqd/210:20:032
27634992620,3cyclictest33-21ksoftirqd/210:05:022
27634992616,8cyclictest33-21ksoftirqd/213:24:172
2763499260,3cyclictest121rcu_preempt14:20:132
2763099269,12cyclictest0-21swapper/113:05:041
2763099267,6cyclictest25-21ksoftirqd/110:34:401
2763099265,6cyclictest25-21ksoftirqd/112:11:361
2763099265,17cyclictest4829-21cut11:10:041
2763099265,17cyclictest4829-21cut11:10:041
2763099262,3cyclictest121rcu_preempt13:13:111
27630992619,4cyclictest25-21ksoftirqd/110:36:221
27623992622,2cyclictest9-21ksoftirqd/010:24:510
27623992621,3cyclictest9-21ksoftirqd/014:05:080
27623992621,3cyclictest9-21ksoftirqd/013:05:110
27623992621,3cyclictest9-21ksoftirqd/011:24:520
27623992620,3cyclictest9-21ksoftirqd/012:10:130
27623992620,3cyclictest9-21ksoftirqd/011:19:510
27623992620,3cyclictest9-21ksoftirqd/011:19:510
27634992520,3cyclictest33-21ksoftirqd/214:30:242
27634992520,3cyclictest33-21ksoftirqd/213:45:112
27634992520,3cyclictest33-21ksoftirqd/213:25:112
27634992520,3cyclictest33-21ksoftirqd/212:55:052
27634992519,3cyclictest33-21ksoftirqd/211:20:062
27634992519,3cyclictest33-21ksoftirqd/209:54:502
27634992518,4cyclictest33-21ksoftirqd/211:13:572
27634992518,4cyclictest33-21ksoftirqd/211:13:572
2763099258,7cyclictest25-21ksoftirqd/110:07:371
2763099256,7cyclictest25-21ksoftirqd/111:15:301
2763099256,7cyclictest25-21ksoftirqd/111:15:301
27630992513,6cyclictest10999-21apt-get14:55:081
2762399255,17cyclictest17467-21apt-get10:30:010
27623992520,3cyclictest9-21ksoftirqd/009:45:070
27623992519,3cyclictest9-21ksoftirqd/011:09:510
27623992518,4cyclictest9-21ksoftirqd/010:28:220
2763499249,13cyclictest19068-21grep10:30:182
27634992419,3cyclictest33-21ksoftirqd/215:05:102
27634992419,3cyclictest33-21ksoftirqd/212:25:122
27634992419,3cyclictest33-21ksoftirqd/212:10:082
27634992419,3cyclictest33-21ksoftirqd/210:50:062
27634992418,3cyclictest33-21ksoftirqd/212:30:212
27634992418,3cyclictest33-21ksoftirqd/211:31:382
27634992418,3cyclictest33-21ksoftirqd/211:00:062
27634992417,4cyclictest33-21ksoftirqd/213:15:132
2763099248,11cyclictest0-21swapper/111:35:031
2763099247,6cyclictest25-21ksoftirqd/110:17:261
27630992417,4cyclictest25-21ksoftirqd/110:47:141
27630992412,5cyclictest3258-21apt-get10:00:011
27623992419,3cyclictest9-21ksoftirqd/014:40:070
27634992318,3cyclictest33-21ksoftirqd/209:55:082
27634992317,3cyclictest33-21ksoftirqd/210:35:092
27634992317,3cyclictest33-21ksoftirqd/210:00:082
27634992317,3cyclictest33-21ksoftirqd/209:45:072
2763499231,3cyclictest121rcu_preempt12:35:102
2763099234,6cyclictest25-21ksoftirqd/110:43:481
2763099232,4cyclictest0-21swapper/113:55:221
27630992317,3cyclictest25-21ksoftirqd/110:52:161
2763099223,5cyclictest0-21swapper/111:27:141
27630992216,4cyclictest25-21ksoftirqd/110:26:341
27630992216,3cyclictest19404-21fschecks_count11:40:091
27634992114,4cyclictest33-21ksoftirqd/210:26:232
2763099218,7cyclictest14374-21apt-get11:30:061
27630992012,5cyclictest29162-21mailstats09:45:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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