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2026-09-11 - 22:44
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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 Fri Sep 11, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2310621520,3sleep1872199cyclictest11:16:151
1839421150,2sleep20-21swapper/214:09:002
1068911030,4ptp4l401ktimersoftd/309:39:383
106891670,1ptp4l401ktimersoftd/310:56:173
83502634,10sleep00-21swapper/009:37:330
19572620,2sleep30-21swapper/313:51:263
106891600,1ptp4l401ktimersoftd/312:05:263
106402590,3sleep1872199cyclictest15:06:321
106891580,1ptp4l401ktimersoftd/314:03:323
70822570,1sleep30-21swapper/315:03:213
70822570,1sleep30-21swapper/315:03:213
267942570,2sleep20-21swapper/214:16:432
106891550,1ptp4l401ktimersoftd/312:37:303
8737995043,3cyclictest41-21ksoftirqd/312:21:173
8726995042,4cyclictest33-21ksoftirqd/213:21:152
8726995042,4cyclictest33-21ksoftirqd/213:21:152
8737994942,4cyclictest41-21ksoftirqd/310:16:093
37712480,2sleep20-21swapper/212:15:342
106891480,1ptp4l401ktimersoftd/312:18:413
8737994740,4cyclictest41-21ksoftirqd/312:11:133
106891470,2ptp4l5216-21kworker/3:214:59:453
8737994640,3cyclictest41-21ksoftirqd/310:11:093
8737994640,3cyclictest41-21ksoftirqd/309:46:083
8714994531,7cyclictest9-21ksoftirqd/014:26:150
8737994437,4cyclictest41-21ksoftirqd/314:46:173
8737994435,4cyclictest41-21ksoftirqd/311:01:123
106891440,1ptp4l401ktimersoftd/313:50:083
8714994328,7cyclictest9-21ksoftirqd/014:51:150
106891420,1ptp4l401ktimersoftd/314:20:103
8737994135,3cyclictest41-21ksoftirqd/314:26:153
8737994115,3cyclictest41-21ksoftirqd/312:31:233
840524118,10sleep20-21swapper/209:38:152
8737994015,4cyclictest41-21ksoftirqd/311:56:013
8721994015,21cyclictest26609-21/usr/sbin/munin14:51:261
8721994013,24cyclictest16343-21latency_hist14:41:041
8714994033,4cyclictest9-21ksoftirqd/013:56:190
8737993916,6cyclictest41-21ksoftirqd/314:06:203
872199392,9cyclictest1639-21taskset12:46:121
106891390,1ptp4l401ktimersoftd/312:47:493
106891390,1ptp4l401ktimersoftd/311:56:463
106891390,1ptp4l401ktimersoftd/311:47:543
106891390,1ptp4l401ktimersoftd/311:26:263
8737993832,3cyclictest41-21ksoftirqd/309:56:103
106891380,1ptp4l401ktimersoftd/315:11:023
106891380,1ptp4l401ktimersoftd/314:55:223
106891380,1ptp4l401ktimersoftd/314:13:473
106891380,1ptp4l401ktimersoftd/313:56:573
106891380,1ptp4l401ktimersoftd/313:29:143
106891380,1ptp4l401ktimersoftd/313:19:393
106891380,1ptp4l401ktimersoftd/313:13:533
106891380,1ptp4l401ktimersoftd/312:52:413
106891380,1ptp4l401ktimersoftd/311:41:323
106891380,1ptp4l401ktimersoftd/311:41:323
106891380,0ptp4l401ktimersoftd/314:39:083
8737993730,3cyclictest41-21ksoftirqd/314:21:163
872199373,8cyclictest484-21apt-get13:51:151
8721993713,20cyclictest1759-21sh14:26:041
8721993712,21cyclictest17876-21date11:05:591
8714993724,5cyclictest9-21ksoftirqd/014:31:160
106891370,1ptp4l401ktimersoftd/314:34:073
106891370,1ptp4l401ktimersoftd/312:56:323
106891370,1ptp4l401ktimersoftd/312:06:383
106891370,0ptp4l401ktimersoftd/313:38:193
106891370,0ptp4l401ktimersoftd/313:35:483
106891370,0ptp4l401ktimersoftd/313:24:193
106891370,0ptp4l401ktimersoftd/313:24:193
872199369,4cyclictest25924-21latency_hist13:11:021
872199368,25cyclictest7602-21if_enp1s0.114:31:211
872199362,5cyclictest0-21swapper/109:41:091
8721993613,20cyclictest47050irq/101-ens3-Tx12:36:171
8721993613,20cyclictest24373-21sh14:47:481
8721993612,20cyclictest4187-21cat15:01:211
8721993612,20cyclictest4187-21cat15:01:211
106891360,0ptp4l401ktimersoftd/312:41:163
872199359,3cyclictest12449-21fschecks_count11:51:161
872199352,9cyclictest20015-21apt-get14:11:161
872199351,5cyclictest0-21swapper/113:01:141
8721993514,18cyclictest25-21ksoftirqd/110:27:291
8721993513,19cyclictest10791-21/usr/sbin/munin10:51:171
8721993512,4cyclictest26361-21cron10:15:581
8721993512,20cyclictest7700-21sh11:46:171
8721993511,3cyclictest16875-21cron09:55:571
8721993510,3cyclictest4452-21irqrtprio13:21:221
8721993510,3cyclictest4452-21irqrtprio13:21:221
8714993524,5cyclictest9-21ksoftirqd/014:16:150
106891350,1ptp4l401ktimersoftd/313:42:143
106891350,0ptp4l401ktimersoftd/309:52:153
872199349,4cyclictest9677-21ssh12:53:391
872199349,4cyclictest21930-21sed11:11:301
872199349,4cyclictest15338-21expr14:06:171
872199349,3cyclictest17844-21latency_hist13:36:031
872199348,4cyclictest17090-21ssh12:28:141
872199345,8cyclictest0-21swapper/113:40:491
872199345,8cyclictest0-21swapper/111:41:411
872199345,8cyclictest0-21swapper/111:41:411
872199344,9cyclictest436-21strings14:56:241
8721993412,19cyclictest26144-21ptp4l14:16:241
8721993411,3cyclictest18374-21ls14:41:371
8721993410,3cyclictest27524-21gltestperf12:06:171
106891340,2ptp4l5928-21kworker/3:210:40:293
106891340,0ptp4l401ktimersoftd/310:01:113
873799338,4cyclictest41-21ksoftirqd/314:46:043
8737993327,3cyclictest41-21ksoftirqd/310:21:093
873799331,9cyclictest41-21ksoftirqd/310:45:593
8726993326,4cyclictest33-21ksoftirqd/212:51:132
872199339,3cyclictest19694-21tr10:01:111
872199335,8cyclictest0-21swapper/113:18:581
872199332,5cyclictest5394-21apt-get13:56:141
872199332,5cyclictest11472-21apt-get12:56:121
8721993311,3cyclictest22252-21sh12:33:391
8721993310,4cyclictest8395-21/usr/sbin/munin10:46:271
106891330,2ptp4l5928-21kworker/3:211:07:413
106891330,1ptp4l401ktimersoftd/313:08:243
8737993227,3cyclictest41-21ksoftirqd/309:45:573
8737993226,3cyclictest41-21ksoftirqd/310:31:273
8737993221,4cyclictest41-21ksoftirqd/310:06:123
8726993226,3cyclictest33-21ksoftirqd/214:41:042
8726993226,3cyclictest33-21ksoftirqd/214:16:042
872199329,4cyclictest9624-21phc2sys13:26:241
872199329,3cyclictest11949-21sh12:22:481
872199328,3cyclictest27557-21sh13:45:571
872199328,3cyclictest16092chrt11:38:071
872199328,3cyclictest16092chrt11:38:071
872199328,3cyclictest0-21swapper/114:26:321
872199326,5cyclictest18595-21awk11:56:231
872199322,5cyclictest13236-21apt-get10:56:111
872199322,5cyclictest10351-21apt-get14:01:211
872199321,10cyclictest22656-21gltestperf12:01:191
872199320,11cyclictest4764-21ssh12:16:171
8714993226,3cyclictest9-21ksoftirqd/013:51:030
106891320,1ptp4l401ktimersoftd/313:04:523
106891320,1ptp4l401ktimersoftd/312:27:503
8737993125,3cyclictest41-21ksoftirqd/311:31:173
8737993125,3cyclictest41-21ksoftirqd/311:11:173
8737993125,3cyclictest41-21ksoftirqd/310:26:133
8726993125,3cyclictest33-21ksoftirqd/214:56:042
8726993121,8cyclictest33-21ksoftirqd/215:01:112
8726993121,8cyclictest33-21ksoftirqd/215:01:112
872199319,3cyclictest30178-21ssh13:15:141
872199318,3cyclictest6026-21/usr/sbin/munin10:41:141
872199315,7cyclictest0-21swapper/112:43:131
872199311,5cyclictest0-21swapper/111:26:111
8714993125,3cyclictest9-21ksoftirqd/012:41:020
106891310,0ptp4l401ktimersoftd/310:52:213
8737993025,3cyclictest41-21ksoftirqd/311:41:003
8737993025,3cyclictest41-21ksoftirqd/311:41:003
8726993025,3cyclictest33-21ksoftirqd/214:26:052
8726993024,3cyclictest33-21ksoftirqd/214:46:042
8726993019,9cyclictest33-21ksoftirqd/211:21:262
8714993025,3cyclictest9-21ksoftirqd/010:50:590
8737992924,3cyclictest41-21ksoftirqd/311:25:593
8737992923,3cyclictest41-21ksoftirqd/311:16:143
8737992919,3cyclictest41-21ksoftirqd/310:46:143
8726992924,3cyclictest33-21ksoftirqd/215:06:232
8726992924,3cyclictest33-21ksoftirqd/212:46:172
8726992924,3cyclictest33-21ksoftirqd/212:41:022
8726992923,3cyclictest33-21ksoftirqd/211:51:192
8726992923,3cyclictest33-21ksoftirqd/211:51:012
8726992916,11cyclictest33-21ksoftirqd/213:48:182
872199299,3cyclictest47050irq/101-ens3-Tx13:50:231
872199299,3cyclictest1055-21runrttasks10:08:581
872199297,3cyclictest4869-21phc2sys-jitter10:36:201
872199294,3cyclictest0-21swapper/111:01:161
872199292,5cyclictest1362-21apt-get10:31:101
8714992924,3cyclictest9-21ksoftirqd/012:21:260
8714992924,3cyclictest9-21ksoftirqd/011:56:180
8714992923,3cyclictest9-21ksoftirqd/011:56:010
8714992923,3cyclictest9-21ksoftirqd/010:10:580
8714992923,3cyclictest9-21ksoftirqd/009:46:020
80662296,10sleep10-21swapper/109:36:291
872699284,7cyclictest33-21ksoftirqd/213:08:252
8726992823,3cyclictest33-21ksoftirqd/213:41:212
8726992823,3cyclictest33-21ksoftirqd/211:31:002
8726992823,3cyclictest33-21ksoftirqd/210:21:162
8726992822,3cyclictest33-21ksoftirqd/212:01:212
8726992822,3cyclictest33-21ksoftirqd/209:41:162
8726992815,11cyclictest33-21ksoftirqd/211:57:592
872199287,3cyclictest12357-21cpuspeed_turbos09:46:101
8714992823,3cyclictest9-21ksoftirqd/014:46:040
8714992823,3cyclictest9-21ksoftirqd/014:36:190
8714992823,3cyclictest9-21ksoftirqd/014:06:040
8714992823,3cyclictest9-21ksoftirqd/013:41:030
8714992823,3cyclictest9-21ksoftirqd/012:01:210
8714992822,3cyclictest9-21ksoftirqd/013:26:020
8714992822,3cyclictest9-21ksoftirqd/013:26:020
8714992822,3cyclictest9-21ksoftirqd/013:06:220
8714992822,3cyclictest9-21ksoftirqd/010:41:170
8714992822,3cyclictest9-21ksoftirqd/009:45:570
872699273,7cyclictest33-21ksoftirqd/214:02:072
872699272,3cyclictest33-21ksoftirqd/212:28:222
8726992722,3cyclictest33-21ksoftirqd/213:26:162
8726992722,3cyclictest33-21ksoftirqd/210:40:592
8726992721,4cyclictest33-21ksoftirqd/213:11:192
8726992721,3cyclictest33-21ksoftirqd/213:31:222
8726992721,3cyclictest33-21ksoftirqd/212:19:392
8726992721,3cyclictest33-21ksoftirqd/211:46:002
8726992721,3cyclictest33-21ksoftirqd/211:46:002
8726992721,3cyclictest33-21ksoftirqd/211:16:192
8726992721,3cyclictest33-21ksoftirqd/210:46:092
8726992714,4cyclictest33-21ksoftirqd/214:26:322
872199272,6cyclictest31959-21apt-get12:11:121
8714992722,3cyclictest9-21ksoftirqd/014:56:220
8714992722,3cyclictest9-21ksoftirqd/013:41:210
8714992722,3cyclictest9-21ksoftirqd/010:11:160
8714992721,4cyclictest16047-21kworker/0:215:06:200
8714992721,3cyclictest9-21ksoftirqd/014:06:210
8714992721,3cyclictest9-21ksoftirqd/012:56:300
8714992721,3cyclictest9-21ksoftirqd/012:21:020
8714992721,3cyclictest9-21ksoftirqd/011:10:590
872699262,6cyclictest33-21ksoftirqd/213:02:322
8726992621,3cyclictest33-21ksoftirqd/214:31:222
8726992620,3cyclictest33-21ksoftirqd/214:56:222
8726992620,3cyclictest33-21ksoftirqd/212:36:012
8726992620,3cyclictest33-21ksoftirqd/210:56:122
8726992620,3cyclictest33-21ksoftirqd/209:56:092
8726992619,4cyclictest33-21ksoftirqd/210:30:582
8726992619,4cyclictest33-21ksoftirqd/210:06:062
8726992614,10cyclictest33-21ksoftirqd/211:01:182
872699260,10cyclictest121rcu_preempt12:06:212
872199262,5cyclictest30370-21python10:21:201
8714992621,3cyclictest9-21ksoftirqd/013:11:210
8714992620,3cyclictest9-21ksoftirqd/012:43:200
49522619,3sleep09-21ksoftirqd/013:51:160
173562260,22sleep01840-21diskmemload12:28:420
8726992520,3cyclictest33-21ksoftirqd/213:56:162
8726992520,3cyclictest33-21ksoftirqd/212:56:302
8726992520,3cyclictest33-21ksoftirqd/211:11:192
8726992519,3cyclictest33-21ksoftirqd/211:10:592
8726992519,3cyclictest33-21ksoftirqd/209:45:582
8726992518,4cyclictest33-21ksoftirqd/210:03:532
8721992518,4cyclictest25-21ksoftirqd/111:33:291
8721992518,4cyclictest17491-21grep09:56:131
871499254,10cyclictest7766-21phc2sys12:51:230
8714992520,3cyclictest9-21ksoftirqd/015:01:290
8714992520,3cyclictest9-21ksoftirqd/015:01:290
8714992520,3cyclictest9-21ksoftirqd/012:31:290
8714992519,3cyclictest9-21ksoftirqd/011:35:450
8714992519,3cyclictest9-21ksoftirqd/011:21:170
8714992519,3cyclictest9-21ksoftirqd/010:26:180
8714992519,3cyclictest9-21ksoftirqd/010:05:580
8714992518,4cyclictest9-21ksoftirqd/010:53:170
8714992518,4cyclictest9-21ksoftirqd/009:59:010
8726992419,3cyclictest33-21ksoftirqd/211:41:002
8726992419,3cyclictest33-21ksoftirqd/211:41:002
8726992419,3cyclictest33-21ksoftirqd/210:11:162
8726992418,4cyclictest33-21ksoftirqd/210:41:152
8726992418,3cyclictest33-21ksoftirqd/212:26:022
8726992418,3cyclictest33-21ksoftirqd/210:32:512
872699241,7cyclictest0-21swapper/213:18:062
8714992419,3cyclictest9-21ksoftirqd/013:26:230
8714992419,3cyclictest9-21ksoftirqd/012:06:290
8714992419,3cyclictest9-21ksoftirqd/011:46:150
8714992418,3cyclictest9-21ksoftirqd/013:21:020
8714992418,3cyclictest9-21ksoftirqd/011:16:170
8714992417,4cyclictest30176-21head14:21:200
8726992317,3cyclictest33-21ksoftirqd/214:46:052
8726992317,3cyclictest33-21ksoftirqd/212:41:172
8726992317,3cyclictest33-21ksoftirqd/211:33:062
8721992316,4cyclictest25-21ksoftirqd/111:24:461
8714992318,3cyclictest9-21ksoftirqd/011:26:150
8714992317,3cyclictest9-21ksoftirqd/010:38:520
8726992216,3cyclictest33-21ksoftirqd/210:16:152
8726992215,4cyclictest33-21ksoftirqd/209:51:452
8726992215,4cyclictest18157-21acpi13:36:132
872699220,3cyclictest121rcu_preempt13:51:172
871499229,10cyclictest9-21ksoftirqd/011:36:170
871499229,10cyclictest9-21ksoftirqd/011:36:170
8714992217,3cyclictest9-21ksoftirqd/012:46:040
8714992217,3cyclictest9-21ksoftirqd/011:41:120
8714992217,3cyclictest9-21ksoftirqd/011:41:120
8714992216,4cyclictest26752-1kworker/u9:113:01:170
8714992216,3cyclictest9-21ksoftirqd/012:15:070
8714992216,3cyclictest9-21ksoftirqd/011:13:290
8714992216,3cyclictest9-21ksoftirqd/010:16:440
8714992214,4cyclictest13693-21gltestperf10:56:150
8714992210,6cyclictest9-21ksoftirqd/014:11:150
8726992115,3cyclictest12175-21sendmail_mailtr10:51:222
8721992115,4cyclictest25-21ksoftirqd/110:16:531
8714992116,3cyclictest9-21ksoftirqd/010:31:130
8714992115,3cyclictest9-21ksoftirqd/009:53:030
8714992115,3cyclictest16542-21latency11:01:190
871499211,17cyclictest13622-21df13:31:170
8714992014,3cyclictest22323-21expr14:46:200
871499199,8cyclictest31102-21awk10:25:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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