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2026-05-21 - 21:24

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Intel
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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: ondemand
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack5slot4s.osadl.org (updated Thu May 21, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11478152790,3sleep375-21kworker/3:1+events10:35:573
11275002570,2chrt471rcuc/310:15:543
937666995142,7cyclictest1209404-21latency_hist11:40:020
937666995045,3cyclictest969146-21kworker/u8:0+events_unbound09:30:560
937668994942,5cyclictest1209650-21kworker/u8:3+flush-8:012:35:581
937668994939,7cyclictest1074715-21latency_hist09:25:011
937668994742,4cyclictest988591-21kworker/u8:3+events_unbound08:11:031
937668994742,4cyclictest969146-21kworker/u8:0+flush-8:007:40:581
937668994742,4cyclictest906089-21kworker/u8:2+flush-8:008:45:571
937668994741,5cyclictest969146-21kworker/u8:0+flush-8:009:31:001
937668994741,5cyclictest1084782-21kworker/u8:2+flush-8:010:40:591
937668994741,4cyclictest1138952-21kworker/u8:3+flush-8:010:31:041
937668994739,6cyclictest1189819-21kworker/u8:1+flush-8:011:31:041
937666994743,3cyclictest1209650-21kworker/u8:3+events_unbound12:16:050
11534822470,4chrt0-21swapper/010:41:030
937668994641,4cyclictest1209650-21kworker/u8:3+flush-8:012:16:061
937668994641,4cyclictest1164557-21kworker/u8:4+flush-8:011:21:001
937666994642,3cyclictest1209650-21kworker/u8:3+events_unbound12:06:050
937666994638,6cyclictest949697-21/usr/sbin/munin07:20:580
937666994638,6cyclictest949697-21/usr/sbin/munin07:20:580
937666994638,5cyclictest1704890-21systemd-journal08:25:540
937671994536,7cyclictest969379-21gpgv07:40:012
937666994541,3cyclictest969146-21kworker/u8:0+events_unbound08:20:490
937666994541,3cyclictest1233881-21kworker/u8:1+events_unbound12:20:430
937666994541,3cyclictest1164557-21kworker/u8:4+events_unbound10:56:050
937666994541,3cyclictest1124471-21kworker/u8:1+events_unbound10:20:440
937668994440,3cyclictest1084782-21kworker/u8:2+events_unbound10:45:561
937668994439,4cyclictest1204310-21kworker/u8:2+events_unbound11:50:491
937668994439,3cyclictest906089-21kworker/u8:2+flush-8:008:56:041
937668994438,5cyclictest969146-21kworker/u8:0+events_unbound08:06:001
937668994436,6cyclictest1209650-21kworker/u8:3+events_unbound12:26:051
937668994436,6cyclictest1084782-21kworker/u8:2+events_unbound09:35:591
937666994440,3cyclictest1209650-21kworker/u8:3+events_unbound12:35:430
937666994440,3cyclictest1028973-21kworker/u8:3+events_unbound09:56:080
937668994339,2cyclictest1049757-21kworker/u8:1+events_unbound09:11:021
937668994338,4cyclictest955074-21kworker/u8:3+events_unbound07:35:581
937668994338,4cyclictest906089-21kworker/u8:2+flush-8:008:01:001
937668994338,4cyclictest1109851-21kworker/u8:0+flush-8:010:11:071
937668994337,4cyclictest1209650-21kworker/u8:3+events_unbound11:56:001
937668994337,3cyclictest885781-21kworker/u8:1+events_unbound07:11:051
937666994339,3cyclictest576446-21kworker/u8:3+events_unbound07:19:420
937666994339,3cyclictest1209650-21kworker/u8:3+events_unbound12:31:430
937666994339,3cyclictest1189819-21kworker/u8:1+events_unbound11:25:580
937666994339,3cyclictest1189819-21kworker/u8:1+events_unbound11:25:580
937666994333,7cyclictest963407-21ntpq07:30:590
937671994236,4cyclictest1028973-21kworker/u8:3+flush-8:009:00:472
937668994237,4cyclictest1164557-21kworker/u8:4+flush-8:010:56:021
937668994237,3cyclictest1209650-21kworker/u8:3+flush-8:012:00:531
937668994236,4cyclictest1164557-21kworker/u8:4+flush-8:011:10:561
937668994234,6cyclictest906089-21kworker/u8:2+events_unbound07:56:041
937666994238,3cyclictest988591-21kworker/u8:3+events_unbound08:10:430
937666994238,3cyclictest1224483-21kworker/u8:0+events_unbound12:04:430
937666994238,3cyclictest1209650-21kworker/u8:3+events_unbound11:55:460
937666994238,3cyclictest1178914-21kworker/u8:0+events_unbound11:10:460
937666994238,3cyclictest1049757-21kworker/u8:1+events_unbound09:20:480
937666994238,3cyclictest1028973-21kworker/u8:3+events_unbound09:46:070
937666994237,4cyclictest906089-21kworker/u8:2+events_unbound08:19:430
937666994237,4cyclictest1209650-21kworker/u8:3+events_unbound12:28:430
937668994137,3cyclictest1084782-21kworker/u8:2+flush-8:010:26:021
937668994136,4cyclictest1049757-21kworker/u8:1+flush-8:009:56:051
937668994136,3cyclictest1178914-21kworker/u8:0+events_unbound11:35:561
937668994135,5cyclictest1164557-21kworker/u8:4+events_unbound11:05:591
937668994135,5cyclictest1028973-21kworker/u8:3+flush-8:008:51:061
937668994135,5cyclictest1028973-21kworker/u8:3+flush-8:008:51:051
937668994135,4cyclictest885781-21kworker/u8:1+events_unbound07:26:031
937668994133,6cyclictest969146-21kworker/u8:0+flush-8:008:21:031
937666994137,3cyclictest906089-21kworker/u8:2+events_unbound08:36:050
937666994137,3cyclictest906089-21kworker/u8:2+events_unbound07:41:050
937666994137,3cyclictest1084782-21kworker/u8:2+events_unbound10:25:530
937666994137,3cyclictest1028973-21kworker/u8:3+events_unbound09:40:480
937666994137,3cyclictest1028973-21kworker/u8:3+events_unbound08:43:430
937666994136,4cyclictest1109851-21kworker/u8:0+events_unbound10:00:470
937666994134,5cyclictest937860-21apt-get07:10:460
937668994036,3cyclictest1164557-21kworker/u8:4+events_unbound11:15:591
937668994034,5cyclictest906089-21kworker/u8:2+flush-8:008:35:571
937668994034,5cyclictest1158714-21kworker/u8:3+flush-8:011:01:051
937668994034,4cyclictest1109851-21kworker/u8:0+events_unbound10:06:011
937668994034,4cyclictest1109851-21kworker/u8:0+events_unbound10:06:011
937668994033,5cyclictest906089-21kworker/u8:2+flush-8:007:21:021
937668994033,5cyclictest906089-21kworker/u8:2+flush-8:007:21:021
937666994036,3cyclictest906089-21kworker/u8:2+events_unbound08:01:070
937666994036,3cyclictest885781-21kworker/u8:1+events_unbound07:37:380
937666994036,3cyclictest1224483-21kworker/u8:0+events_unbound12:10:430
937666994036,3cyclictest1164557-21kworker/u8:4+events_unbound11:19:430
937666994036,3cyclictest1149223-21kworker/u8:1+events_unbound10:50:570
937666994036,3cyclictest1138952-21kworker/u8:3+events_unbound10:30:420
937666994036,3cyclictest1028973-21kworker/u8:3+events_unbound08:51:260
937666994036,3cyclictest1028973-21kworker/u8:3+events_unbound08:51:260
937666994035,4cyclictest1028973-21kworker/u8:3+events_unbound08:55:420
937668993934,3cyclictest906089-21kworker/u8:2+events_unbound08:40:471
937668993931,6cyclictest1189819-21kworker/u8:1+flush-8:011:25:591
937668993931,6cyclictest1189819-21kworker/u8:1+flush-8:011:25:591
937666993935,3cyclictest969146-21kworker/u8:0+events_unbound07:57:430
937666993935,3cyclictest1204310-21kworker/u8:2+events_unbound11:51:090
937666993935,3cyclictest1164557-21kworker/u8:4+events_unbound11:20:430
937666993935,3cyclictest1164557-21kworker/u8:4+events_unbound11:04:430
937666993935,3cyclictest1028973-21kworker/u8:3+events_unbound09:37:430
937666993935,3cyclictest1028973-21kworker/u8:3+events_unbound09:09:440
937666993934,4cyclictest1164557-21kworker/u8:4+events_unbound11:08:430
937668993833,3cyclictest1209650-21kworker/u8:3+events_unbound12:05:541
937668993833,3cyclictest1028973-21kworker/u8:3+flush-8:009:50:511
937668993832,5cyclictest969146-21kworker/u8:0+flush-8:009:26:001
937666993834,3cyclictest969146-21kworker/u8:0+events_unbound08:07:430
937666993834,3cyclictest969146-21kworker/u8:0+events_unbound07:45:380
937666993834,3cyclictest906089-21kworker/u8:2+events_unbound07:25:350
937666993834,3cyclictest1204310-21kworker/u8:2+events_unbound11:48:420
937666993834,3cyclictest1109851-21kworker/u8:0+events_unbound10:46:410
937666993834,3cyclictest1109851-21kworker/u8:0+events_unbound10:35:420
937666993834,3cyclictest1014532-21kworker/u8:1+events_unbound08:30:410
937666993828,7cyclictest1209702-21/usr/sbin/munin11:40:580
937668993732,3cyclictest1109851-21kworker/u8:0+flush-8:010:00:461
937668993730,5cyclictest1109851-21kworker/u8:0+flush-8:010:21:021
937666993733,3cyclictest906089-21kworker/u8:2+events_unbound08:46:070
937666993733,3cyclictest1109851-21kworker/u8:0+events_unbound10:09:420
937666993733,3cyclictest1109851-21kworker/u8:0+events_unbound10:09:410
937666993729,6cyclictest983449-21ntpq07:50:580
937666993729,6cyclictest1203505-21ntpq11:30:570
937668993631,4cyclictest1204310-21kworker/u8:2+flush-8:011:41:011
937668993631,3cyclictest1028973-21kworker/u8:3+flush-8:009:40:531
937668993630,4cyclictest906089-21kworker/u8:2+flush-8:007:45:591
937666993632,3cyclictest969146-21kworker/u8:0+events_unbound09:19:380
937666993632,3cyclictest1109851-21kworker/u8:0+events_unbound10:19:410
937666993632,3cyclictest1109851-21kworker/u8:0+events_unbound10:10:420
937666993632,3cyclictest1028973-21kworker/u8:3+events_unbound09:51:430
937666993629,6cyclictest1049757-21kworker/u8:1+events_unbound09:25:430
937671993527,6cyclictest1704890-21systemd-journal07:50:012
937668993530,3cyclictest969146-21kworker/u8:0+events_unbound08:16:001
937668993530,3cyclictest576446-21kworker/u8:3+flush-8:007:15:051
937666993531,3cyclictest1028973-21kworker/u8:3+events_unbound09:12:440
937666993531,3cyclictest1028973-21kworker/u8:3+events_unbound09:03:090
937671993429,4cyclictest949640-21kworker/u8:0+events_unbound07:25:012
937671993429,4cyclictest949640-21kworker/u8:0+events_unbound07:25:002
937668993430,3cyclictest1158714-21kworker/u8:3+flush-8:010:50:511
937668993430,3cyclictest1049757-21kworker/u8:1+events_unbound09:06:041
937668993425,4cyclictest1109851-21kworker/u8:0+events_unbound10:15:591
937671993328,4cyclictest1209650-21kworker/u8:3+flush-8:012:31:022
937671993326,5cyclictest1039614-21apt-get08:50:002
937668993328,4cyclictest1204310-21kworker/u8:2+events_unbound11:45:451
937668993328,3cyclictest1259945-21irqrtprio12:30:521
9373142333,6sleep10-21swapper/107:07:581
937671993227,3cyclictest1047258-21kthreadcore08:55:552
937671993226,4cyclictest1209650-21kworker/u8:3+flush-8:011:55:482
937668993228,3cyclictest1084782-21kworker/u8:2+events_unbound09:46:011
937668993227,4cyclictest1224483-21kworker/u8:0+flush-8:012:21:041
937668993227,3cyclictest1209650-21kworker/u8:3+events_unbound12:14:311
937671993127,2cyclictest1149164-21cron10:39:592
937671992926,2cyclictest1059682-21latency_hist09:10:002
937671992925,2cyclictest1174256-21cron11:05:002
937671992923,4cyclictest1028754-21unixbench_multi08:36:042
937668992924,4cyclictest906089-21kworker/u8:2+events_unbound07:55:001
937668992920,4cyclictest906089-21kworker/u8:2+events_unbound08:31:051
937668992823,4cyclictest1028973-21kworker/u8:3+flush-8:009:01:371
937671992722,3cyclictest1109851-21kworker/u8:0+events_unbound10:10:012
937671992722,3cyclictest1109851-21kworker/u8:0+events_unbound10:10:002
937668992723,3cyclictest1049757-21kworker/u8:1+flush-8:009:16:041
937668992722,4cyclictest1109851-21kworker/u8:0+flush-8:010:36:041
937668992721,5cyclictest906089-21kworker/u8:2+events_unbound07:31:001
937671992622,3cyclictest1008741-21unixbench_singl08:16:062
937671992621,4cyclictest906089-21kworker/u8:2+flush-8:007:51:022
9372912262,6sleep00-21swapper/007:07:410
937671992521,2cyclictest1149794-21fschecks_count10:40:502
937671992521,2cyclictest1100127-21aten2_r5power_p09:50:492
937671992521,2cyclictest0-21swapper/210:00:562
937671992419,3cyclictest1194531-21cron11:25:002
937671992419,3cyclictest1023820-21unixbench_multi08:31:052
937671992319,2cyclictest1018861-21unixbench_multi08:26:042
937671992318,4cyclictest1034450-21latency_hist08:45:002
937668992319,3cyclictest1015315-21irqrtprio08:25:521
937671992219,2cyclictest1188968-21unixbench_singl11:16:052
937671992215,5cyclictest1049757-21kworker/u8:1+events_unbound09:16:052
937671992213,6cyclictest1704890-21systemd-journal08:24:592
937671992212,7cyclictest1704890-21systemd-journal11:00:002
93767199220,5cyclictest1119825-21apt-get10:10:482
93767199219,4cyclictest0-21swapper/210:15:582
937671992117,2cyclictest989937-21fschecks_time08:00:502
937671992117,2cyclictest988927-21unixbench_singl07:56:052
937671992115,4cyclictest1233881-21kworker/u8:1+events_unbound12:20:222
937671992114,5cyclictest0-21swapper/209:35:532
937671992017,2cyclictest1159847-21cpuspeed_turbos10:50:472
937671992017,2cyclictest1070321-21cpuspeed_turbos09:20:482
937671992016,2cyclictest1234499-21aten2_r5power_c12:05:462
937671992016,2cyclictest1209759-21aten2_r5power_c11:40:482
937671992016,2cyclictest1105039-21aten2_r5power_p09:55:482
93767199201,5cyclictest1243462-21swap12:11:042
937671992013,5cyclictest1704890-21systemd-journal07:14:422
937671992012,6cyclictest1084805-21cron09:35:002
937671992011,2cyclictest0-21swapper/211:05:502
9328862204,11sleep20-21swapper/207:05:412
937671991915,2cyclictest0-21swapper/211:35:592
937671991915,2cyclictest0-21swapper/211:26:032
937671991915,2cyclictest0-21swapper/211:26:022
937671991915,2cyclictest0-21swapper/210:25:562
937671991915,2cyclictest0-21swapper/209:45:012
9373562194,8sleep30-21swapper/307:08:323
937671991815,2cyclictest944791-21aten2_r5power_c07:15:462
937671991814,3cyclictest0-21swapper/212:26:052
937671991814,2cyclictest0-21swapper/209:30:012
937671991814,2cyclictest0-21swapper/208:55:002
937671991814,2cyclictest0-21swapper/208:55:002
937671991814,2cyclictest0-21swapper/207:25:592
93767199178,7cyclictest1218396-21awk11:45:572
937671991713,2cyclictest0-21swapper/209:45:562
937671991713,2cyclictest0-21swapper/208:05:482
93767199171,12cyclictest1244384-21apt-get12:15:472
93767199167,7cyclictest1264365-21sort12:35:482
93767199162,1cyclictest0-21swapper/212:00:582
937671991613,2cyclictest0-21swapper/211:10:482
937671991613,2cyclictest0-21swapper/210:48:352
937671991613,2cyclictest0-21swapper/209:11:032
937671991612,3cyclictest999890-21fschecks_time08:10:502
937671991612,2cyclictest961769-21kthreadcore07:30:542
937671991612,2cyclictest0-21swapper/211:51:042
937671991611,4cyclictest0-21swapper/210:21:032
937671991611,3cyclictest0-21swapper/210:30:522
93767199161,11cyclictest969813-21apt-get07:40:442
12058472168,5sleep30-21swapper/311:35:533
937671991510,3cyclictest0-21swapper/211:30:582
10051842154,7sleep30-21swapper/308:15:543
12133912142,8sleep30-21swapper/311:40:583
11792132142,8sleep30-21swapper/311:10:003
9556242133,6sleep30-21swapper/307:25:543
12341882132,6sleep30-21swapper/312:05:023
12246382132,7sleep30-21swapper/311:55:463
11541642133,6sleep30-21swapper/310:45:003
11087392132,7sleep30-21swapper/309:56:003
10947852132,6sleep30-21swapper/309:45:023
10698112132,6sleep30-21swapper/309:20:023
10655912133,6sleep30-21swapper/309:15:533
10459992134,6sleep30-21swapper/308:55:543
10244612135,5sleep30-21swapper/308:35:083
9989032122,6sleep30-21swapper/308:06:073
9833852122,6sleep30-21swapper/307:50:573
9748672122,6sleep30-21swapper/307:45:483
9696062122,6sleep30-21swapper/307:40:023
9650922122,6sleep30-21swapper/307:35:523
9613372122,6sleep30-21swapper/307:30:563
9428432121,6sleep30-21swapper/307:15:033
12440632122,5sleep30-21swapper/312:15:003
12330572122,6sleep30-21swapper/312:00:563
12233632122,6sleep30-21swapper/311:51:013
12008472122,6sleep30-21swapper/311:30:553
11955542122,6sleep30-21swapper/311:25:533
11955542122,6sleep30-21swapper/311:25:533
11920562122,6sleep30-21swapper/311:20:563
11884352122,6sleep30-21swapper/311:15:583
11797372123,6sleep30-21swapper/311:10:443
11693242122,5sleep30-21swapper/311:00:013
11594962121,6sleep30-21swapper/310:50:023
11548522122,6sleep30-21swapper/310:45:493
11397212122,6sleep30-21swapper/310:30:483
11344612122,6sleep30-21swapper/310:25:023
11203092122,6sleep30-21swapper/310:10:543
11009272122,6sleep30-21swapper/309:50:563
10847772122,6sleep30-21swapper/309:34:433
10750212122,6sleep30-21swapper/309:25:473
10239072123,6sleep30-21swapper/308:31:073
10140422121,7sleep30-21swapper/308:25:013
10035032122,6sleep30-21swapper/308:11:043
9924612112,5sleep30-21swapper/308:00:573
9851152112,6sleep30-21swapper/307:55:513
9496722112,6sleep30-21swapper/307:20:323
9496722112,6sleep30-21swapper/307:20:323
9374942112,5sleep30-21swapper/307:10:013
12645042112,5sleep30-21swapper/312:35:513
12589882112,5sleep30-21swapper/312:30:023
12546572112,6sleep30-21swapper/312:25:513
12492582112,5sleep30-21swapper/312:20:023
12471772112,5sleep30-21swapper/312:15:573
12190882112,6sleep30-21swapper/311:47:163
11645482112,6sleep30-21swapper/310:55:153
11342412112,5sleep30-21swapper/310:23:503
11148712112,5sleep30-21swapper/310:05:483
11148712112,5sleep30-21swapper/310:05:483
11098462112,5sleep30-21swapper/310:00:023
10850402112,5sleep30-21swapper/309:35:033
10618892112,6sleep30-21swapper/309:10:553
10595132112,6sleep30-21swapper/309:08:013
10536162112,6sleep30-21swapper/309:00:563
10349042112,5sleep30-21swapper/308:45:033
10300182112,5sleep30-21swapper/308:40:493
10154782112,5sleep30-21swapper/308:25:523
10900192102,5sleep30-21swapper/309:40:033
10400742102,5sleep30-21swapper/308:50:043
10400742102,5sleep30-21swapper/308:50:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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