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2025-12-09 - 19:02
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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 Tue Dec 09, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1773911820,5ptp4l401ktimersoftd/308:25:563
193342870,2sleep10-21swapper/109:56:581
177391740,10ptp4l401ktimersoftd/311:15:073
168742680,4sleep0101ktimersoftd/012:03:430
177391620,10ptp4l401ktimersoftd/312:04:173
245392610,5sleep2778599cyclictest10:54:522
107762570,4sleep310726-21ssh10:37:183
107412570,1sleep00-21swapper/012:33:340
76172554,39sleep20-21swapper/208:26:232
75982554,40sleep00-21swapper/008:26:080
73462534,10sleep10-21swapper/108:22:501
161942520,1sleep20-21swapper/210:44:042
177391400,1ptp4l401ktimersoftd/311:21:123
779299392,34cyclictest27920-21grep12:17:203
779299392,34cyclictest27920-21grep12:17:203
177391390,1ptp4l401ktimersoftd/313:56:043
177391390,1ptp4l401ktimersoftd/313:56:043
177391390,1ptp4l401ktimersoftd/313:45:503
177391390,1ptp4l401ktimersoftd/313:26:463
177391390,1ptp4l401ktimersoftd/313:10:063
177391390,1ptp4l401ktimersoftd/312:48:583
177391390,1ptp4l401ktimersoftd/311:26:023
177391390,0ptp4l401ktimersoftd/311:52:153
7778993832,3cyclictest25-21ksoftirqd/110:32:151
177391380,1ptp4l401ktimersoftd/313:27:573
177391380,1ptp4l401ktimersoftd/313:16:383
177391380,1ptp4l401ktimersoftd/313:04:163
177391380,1ptp4l401ktimersoftd/312:54:393
177391380,1ptp4l401ktimersoftd/312:37:133
177391380,1ptp4l401ktimersoftd/312:28:293
177391380,1ptp4l401ktimersoftd/311:48:543
177391380,1ptp4l401ktimersoftd/311:41:353
177391380,1ptp4l401ktimersoftd/310:59:423
110572380,4sleep2778599cyclictest13:50:362
177391370,1ptp4l401ktimersoftd/312:44:433
177391370,1ptp4l401ktimersoftd/312:23:223
177391370,1ptp4l401ktimersoftd/311:32:303
177391370,1ptp4l401ktimersoftd/310:50:073
177391370,1ptp4l401ktimersoftd/310:45:573
177391370,1ptp4l401ktimersoftd/310:28:583
177391370,1ptp4l401ktimersoftd/310:28:583
177391370,1ptp4l401ktimersoftd/309:22:183
177391370,0ptp4l401ktimersoftd/312:00:323
177391370,0ptp4l401ktimersoftd/310:54:453
7792993629,4cyclictest28787-21latency_hist10:16:583
7792993613,20cyclictest7640-21sh13:47:123
236552360,3sleep2778599cyclictest10:02:292
177391360,1ptp4l401ktimersoftd/312:07:393
177391360,1ptp4l401ktimersoftd/311:44:243
177391360,1ptp4l401ktimersoftd/310:33:233
73812350,4sleep0777199cyclictest13:07:390
177391350,1ptp4l401ktimersoftd/311:10:123
177391350,1ptp4l401ktimersoftd/309:32:293
7792993413,18cyclictest10977-21/usr/sbin/munin08:32:243
7792993410,4cyclictest30681-21grep10:17:273
7785993325,5cyclictest5653-21dpkg10:32:112
779299329,4cyclictest30301-21sh12:57:213
779299329,4cyclictest28675-21ptp4l13:32:253
779299325,7cyclictest10240-21grep12:32:373
779299322,5cyclictest8024-21apt-get08:27:083
7792993211,18cyclictest20884-21sh11:30:413
7785993225,4cyclictest33-21ksoftirqd/212:02:252
779299318,3cyclictest22153-21cstates10:02:133
779299313,7cyclictest14651-21apt-get09:47:103
7792993112,16cyclictest29513-21unixbench_singl09:07:243
7778993125,3cyclictest25-21ksoftirqd/111:42:211
7778993125,3cyclictest25-21ksoftirqd/109:21:571
779299308,2cyclictest0-21swapper/312:12:173
779299306,4cyclictest17485-21sh09:52:123
779299304,5cyclictest16280-21grep08:42:153
779299302,6cyclictest13446-21apt-get08:37:093
779299302,6cyclictest13446-21apt-get08:37:093
779299300,9cyclictest177391ptp4l08:57:163
7785993024,3cyclictest33-21ksoftirqd/212:49:142
7785993023,4cyclictest33-21ksoftirqd/212:37:062
7778993025,3cyclictest25-21ksoftirqd/113:17:031
7778993025,3cyclictest25-21ksoftirqd/110:42:181
7778993024,3cyclictest25-21ksoftirqd/112:47:161
270082300,2sleep00-21swapper/012:52:250
779299295,4cyclictest19292-21phc2sys08:47:173
779299295,4cyclictest1197-21latency_hist11:07:003
779299295,3cyclictest30202-21acpi09:12:093
779299295,3cyclictest26864-21swap09:02:243
779299294,6cyclictest3349-21taskset13:42:033
779299294,4cyclictest0-21swapper/313:17:163
7792992911,15cyclictest12229-21acpi09:42:083
7785992923,3cyclictest33-21ksoftirqd/213:03:172
7785992922,4cyclictest33-21ksoftirqd/211:31:172
7785992922,4cyclictest33-21ksoftirqd/208:49:542
7778992924,3cyclictest25-21ksoftirqd/113:22:201
7778992924,3cyclictest25-21ksoftirqd/111:12:191
7778992923,3cyclictest25-21ksoftirqd/111:57:141
7771992924,3cyclictest9-21ksoftirqd/013:37:210
779299287,4cyclictest575-21gltestperf09:17:163
779299286,4cyclictest31800-21uniq10:22:143
779299281,8cyclictest0-21swapper/310:07:183
779299280,9cyclictest10590-21irqrtprio09:37:153
7785992823,3cyclictest33-21ksoftirqd/213:55:042
7785992823,3cyclictest33-21ksoftirqd/213:55:042
7785992823,3cyclictest33-21ksoftirqd/211:06:502
7785992821,4cyclictest33-21ksoftirqd/211:50:442
7785992821,4cyclictest33-21ksoftirqd/210:40:182
7785992821,4cyclictest33-21ksoftirqd/208:35:212
7778992823,3cyclictest25-21ksoftirqd/113:57:041
7778992823,3cyclictest25-21ksoftirqd/113:57:041
7778992823,3cyclictest25-21ksoftirqd/112:12:151
7778992822,3cyclictest25-21ksoftirqd/110:16:101
7778992817,6cyclictest25-21ksoftirqd/109:02:101
7771992821,4cyclictest9-21ksoftirqd/008:28:570
7771992820,5cyclictest9-21ksoftirqd/010:31:590
7771992820,5cyclictest9-21ksoftirqd/010:31:590
7792992720,4cyclictest41-21ksoftirqd/310:00:053
7792992720,4cyclictest41-21ksoftirqd/309:29:503
779299270,9cyclictest20472-21/usr/sbin/munin08:52:113
7785992722,3cyclictest33-21ksoftirqd/211:40:172
7785992720,4cyclictest33-21ksoftirqd/212:20:512
7785992720,4cyclictest33-21ksoftirqd/212:20:512
7785992720,4cyclictest33-21ksoftirqd/209:55:062
7785992720,4cyclictest33-21ksoftirqd/209:39:532
7785992720,4cyclictest33-21ksoftirqd/209:13:032
7785992720,4cyclictest33-21ksoftirqd/208:43:402
7778992722,3cyclictest25-21ksoftirqd/110:57:161
7778992722,3cyclictest25-21ksoftirqd/108:27:141
7778992721,4cyclictest25-21ksoftirqd/111:49:311
7778992721,3cyclictest25-21ksoftirqd/111:52:161
7778992721,3cyclictest25-21ksoftirqd/110:47:131
7778992721,3cyclictest25-21ksoftirqd/109:51:151
7778992721,3cyclictest25-21ksoftirqd/108:52:141
7771992722,3cyclictest9-21ksoftirqd/012:57:170
7771992721,3cyclictest9-21ksoftirqd/012:20:370
7771992721,3cyclictest9-21ksoftirqd/012:20:370
7771992721,3cyclictest9-21ksoftirqd/010:26:110
7771992720,4cyclictest9-21ksoftirqd/013:03:410
7785992619,4cyclictest33-21ksoftirqd/209:59:322
7785992619,4cyclictest33-21ksoftirqd/209:10:222
7785992619,4cyclictest33-21ksoftirqd/208:52:312
7778992621,3cyclictest25-21ksoftirqd/113:22:041
7778992621,3cyclictest25-21ksoftirqd/112:57:021
7778992621,3cyclictest25-21ksoftirqd/112:36:471
7778992621,3cyclictest25-21ksoftirqd/112:19:011
7778992621,3cyclictest25-21ksoftirqd/112:19:011
7778992621,3cyclictest25-21ksoftirqd/111:37:301
7778992621,3cyclictest25-21ksoftirqd/111:07:271
7778992620,3cyclictest25-21ksoftirqd/109:01:571
7771992621,3cyclictest9-21ksoftirqd/009:50:590
7771992620,4cyclictest9-21ksoftirqd/011:50:140
7771992620,3cyclictest9-21ksoftirqd/011:19:110
7771992619,4cyclictest9-21ksoftirqd/011:42:470
7771992619,4cyclictest9-21ksoftirqd/009:35:130
7771992619,4cyclictest9-21ksoftirqd/008:38:440
7771992619,4cyclictest9-21ksoftirqd/008:38:440
1332922620,3sleep125-21ksoftirqd/110:41:431
7785992519,3cyclictest33-21ksoftirqd/209:32:142
7785992518,4cyclictest33-21ksoftirqd/209:51:292
7785992518,4cyclictest33-21ksoftirqd/208:40:432
7785992518,4cyclictest33-21ksoftirqd/208:40:432
7785992516,6cyclictest33-21ksoftirqd/213:25:472
7778992520,3cyclictest25-21ksoftirqd/113:10:481
7778992520,3cyclictest25-21ksoftirqd/111:17:221
7778992520,3cyclictest25-21ksoftirqd/110:17:121
7778992520,3cyclictest25-21ksoftirqd/108:47:091
7778992519,4cyclictest25-21ksoftirqd/111:04:311
7778992519,4cyclictest25-21ksoftirqd/108:44:151
7778992519,3cyclictest25-21ksoftirqd/112:42:231
7778992519,3cyclictest25-21ksoftirqd/111:27:161
7778992519,3cyclictest25-21ksoftirqd/110:52:191
777899251,21cyclictest11058-21ssh13:50:361
777899251,20cyclictest23186-21ssh13:27:051
7771992520,3cyclictest9-21ksoftirqd/008:31:570
7771992519,3cyclictest9-21ksoftirqd/013:47:390
7771992519,3cyclictest9-21ksoftirqd/011:24:300
7771992519,3cyclictest9-21ksoftirqd/009:55:400
7771992518,4cyclictest9-21ksoftirqd/010:03:070
7771992518,4cyclictest9-21ksoftirqd/009:29:030
7771992518,4cyclictest9-21ksoftirqd/009:20:480
7771992518,4cyclictest9-21ksoftirqd/008:52:210
7785992418,3cyclictest33-21ksoftirqd/213:17:132
7785992417,4cyclictest33-21ksoftirqd/211:45:392
7785992417,4cyclictest33-21ksoftirqd/209:30:212
7778992420,3cyclictest25-21ksoftirqd/109:07:141
7778992419,3cyclictest25-21ksoftirqd/113:45:101
7778992419,3cyclictest25-21ksoftirqd/112:39:251
7778992418,3cyclictest25-21ksoftirqd/113:01:511
777199243,3cyclictest121rcu_preempt12:42:340
7771992419,3cyclictest9-21ksoftirqd/013:19:400
7771992417,4cyclictest9-21ksoftirqd/009:05:020
7771992417,4cyclictest18302-21sed10:47:180
7785992317,3cyclictest33-21ksoftirqd/213:38:402
7785992317,3cyclictest33-21ksoftirqd/213:16:402
7785992317,3cyclictest33-21ksoftirqd/211:26:072
7785992317,3cyclictest33-21ksoftirqd/209:21:542
7785992316,4cyclictest33-21ksoftirqd/210:22:042
7785992316,4cyclictest21445-21turbostat.cron10:51:592
7785992311,7cyclictest321ktimersoftd/212:32:162
7778992318,3cyclictest25-21ksoftirqd/112:27:121
7778992318,3cyclictest25-21ksoftirqd/110:27:171
7778992318,3cyclictest25-21ksoftirqd/110:27:171
7778992317,4cyclictest25-21ksoftirqd/109:40:041
7778992317,3cyclictest25-21ksoftirqd/109:43:151
7771992317,4cyclictest9-21ksoftirqd/013:26:460
7771992317,4cyclictest9-21ksoftirqd/009:59:140
7771992317,3cyclictest9-21ksoftirqd/009:08:110
230202230,2sleep00-21swapper/012:47:310
7785992217,3cyclictest33-21ksoftirqd/210:57:282
7785992216,4cyclictest33-21ksoftirqd/208:57:102
7785992216,3cyclictest33-21ksoftirqd/212:10:072
7785992216,3cyclictest33-21ksoftirqd/210:14:212
7785992215,4cyclictest33-21ksoftirqd/211:56:392
7785992215,4cyclictest33-21ksoftirqd/209:44:182
7785992215,4cyclictest33-21ksoftirqd/208:27:592
778599221,19cyclictest0-21swapper/210:28:332
778599221,19cyclictest0-21swapper/210:28:332
778599221,18cyclictest11725-21snmp_o5powerctl11:57:272
778599220,19cyclictest1110-21diskmemload12:57:482
7778992217,3cyclictest25-21ksoftirqd/111:22:171
7778992217,3cyclictest25-21ksoftirqd/110:22:501
7778992217,3cyclictest25-21ksoftirqd/109:27:121
7778992217,3cyclictest25-21ksoftirqd/109:22:141
7778992217,3cyclictest25-21ksoftirqd/109:12:131
7778992216,3cyclictest25-21ksoftirqd/108:35:031
7778992215,4cyclictest1181-21sh12:22:321
777199224,10cyclictest29884-21ssh11:02:160
7771992216,3cyclictest9-21ksoftirqd/009:16:300
7771992215,4cyclictest9-21ksoftirqd/012:40:130
7771992215,4cyclictest9-21ksoftirqd/010:10:580
7771992215,4cyclictest9-21ksoftirqd/009:43:400
7771992214,4cyclictest13730-21timerwakeupswit13:52:320
7771992214,4cyclictest13730-21timerwakeupswit13:52:320
300172221,18sleep130024-21ssh13:34:101
254272220,17sleep00-21swapper/013:28:030
178822216,3sleep09-21ksoftirqd/012:23:390
778599212,3cyclictest0-21swapper/213:08:592
7785992115,3cyclictest33-21ksoftirqd/213:36:102
7785992115,3cyclictest33-21ksoftirqd/212:23:282
7785992115,3cyclictest24274-21/usr/sbin/munin10:07:222
7785992114,4cyclictest5925-21sh13:43:362
7785992114,4cyclictest2754-21rt-features11:07:212
778599211,2cyclictest0-21swapper/211:19:542
778599211,18cyclictest1110-21diskmemload11:34:062
778599211,17cyclictest27655-21ssh12:52:562
7778992116,3cyclictest25-21ksoftirqd/113:07:031
7778992116,3cyclictest25-21ksoftirqd/109:57:111
7778992114,4cyclictest32380-21irqrtprio13:37:211
7771992116,3cyclictest9-21ksoftirqd/009:22:380
7771992115,3cyclictest9-21ksoftirqd/011:39:390
7771992115,3cyclictest9-21ksoftirqd/010:32:260
7771992114,4cyclictest9-21ksoftirqd/010:18:330
7771992114,4cyclictest9-21ksoftirqd/008:50:250
7771992114,4cyclictest27336-21timerandwakeup10:57:290
7771992114,4cyclictest23400-21threads11:32:290
7771992114,4cyclictest23040-21/usr/sbin/munin12:12:260
7771992114,4cyclictest1110-21diskmemload13:16:410
7785992015,3cyclictest33-21ksoftirqd/211:15:152
7785992012,5cyclictest26739-21ptp4l09:02:192
778599201,17cyclictest0-21swapper/212:44:502
778599201,17cyclictest0-21swapper/212:14:272
778599201,16cyclictest5214-21snmp_o5powerctl12:27:282
778599200,17cyclictest25708-21ssh13:29:052
7778992015,3cyclictest25-21ksoftirqd/112:02:171
7778992014,4cyclictest25-21ksoftirqd/108:37:451
7778992014,4cyclictest25-21ksoftirqd/108:37:451
7778992014,4cyclictest23115-21phc2sys-jitter10:02:211
7778992014,3cyclictest8780-21rt-features09:32:201
7778992014,3cyclictest25-21ksoftirqd/110:11:151
7771992014,3cyclictest3688-21/usr/sbin/munin12:27:210
7771992013,4cyclictest8735-21sh11:16:210
7771992013,4cyclictest23109-21seq08:57:130
7771992013,4cyclictest22513-21sed10:52:180
7771992012,5cyclictest28385-21awk10:12:320
7785991913,4cyclictest33-21ksoftirqd/210:18:102
778599191,16cyclictest0-21swapper/209:22:212
7778991914,3cyclictest25-21ksoftirqd/111:32:141
7778991911,5cyclictest19865-21needreboot12:07:231
777199198,9cyclictest7354-21awk13:47:030
7771991913,3cyclictest28992-21sed13:32:310
7771991913,3cyclictest18822-21ls12:07:150
7771991913,3cyclictest18821-21phc2sys11:27:240
7771991913,3cyclictest13862-21cat10:42:130
7771991913,3cyclictest10986-21if_err_ens311:57:190
7771991912,4cyclictest9-21ksoftirqd/011:53:350
7771991912,4cyclictest2007-21if_enp1s011:07:160
7771991912,4cyclictest16040-21expr08:42:130
7771991912,4cyclictest11717-21seq09:38:420
7771991912,4cyclictest1110-21diskmemload10:39:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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