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2026-05-22 - 20:45

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 all highest latencies:
System rack5slot4s.osadl.org (updated Fri May 22, 2026 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
99216321860,5sleep3481ktimers/310:50:543
92262121710,3sleep375-21kworker/3:1+events09:40:573
8587092800,6chrt0-21swapper/208:36:032
7652022770,3chrt451irq_work/307:05:563
767790996054,4cyclictest844532-21kworker/u8:1+events_unbound08:30:011
767790996052,6cyclictest948812-21kworker/u8:0+flush-8:010:16:021
767792995850,6cyclictest1704890-21systemd-journal11:45:002
767785995647,6cyclictest768341-21diskstats07:10:490
767790995543,9cyclictest1704890-21systemd-journal09:35:001
767790995443,8cyclictest893078-21ntpq09:10:561
767790995441,9cyclictest1704890-21systemd-journal08:20:001
767790995345,6cyclictest859667-21/usr/sbin/munin08:41:031
767785995241,8cyclictest919238-21diskstats09:40:490
7911002510,2chrt0-21swapper/207:30:512
767790995146,3cyclictest768021-21kworker/u8:4+events_unbound07:15:591
767790995142,6cyclictest898003-21ntpq09:15:561
767785995143,5cyclictest893970-21latency_hist09:15:010
767792995043,5cyclictest1008254-21apt-get11:10:032
767790995040,8cyclictest1076730-21ntpq12:15:581
767790995038,9cyclictest823531-21ntpq08:00:571
767785995040,8cyclictest933485-21apt-get09:55:000
767790994940,7cyclictest834060-21kworker/u8:2+flush-8:010:06:021
767790994940,6cyclictest889035-21kworker/u8:3+flush-8:009:51:031
767790994939,6cyclictest889035-21kworker/u8:3+flush-8:011:46:051
767785994939,7cyclictest1047982-21latency_hist11:50:020
767785994838,8cyclictest1081779-21ntpq12:20:590
767790994742,3cyclictest768021-21kworker/u8:4+events_unbound07:20:471
9211422460,3chrt921147-21kthreadcore09:40:541
767790994641,4cyclictest768021-21kworker/u8:4+flush-8:007:31:001
767790994639,5cyclictest889035-21kworker/u8:3+flush-8:010:51:021
767785994636,8cyclictest1042167-21ntpq11:40:570
767785994635,8cyclictest902928-21ntpq09:20:560
767792994534,8cyclictest854563-21cat08:35:012
767785994541,3cyclictest1058077-21kworker/u8:0+events_unbound12:06:040
767785994540,3cyclictest714507-21kworker/u8:0+flush-8:007:20:000
767792994438,4cyclictest834060-21kworker/u8:2+flush-8:011:05:002
767790994337,4cyclictest768021-21kworker/u8:4+flush-8:008:11:041
767785994339,3cyclictest973770-21kworker/u8:0+events_unbound10:40:530
767785994236,4cyclictest1082917-21apt-get12:25:420
767785994233,6cyclictest809378-21latency_hist07:50:000
767790994134,5cyclictest834060-21kworker/u8:2+flush-8:011:05:581
767790994131,6cyclictest1704890-21systemd-journal11:32:401
767790994129,9cyclictest788687-21ntpq07:25:581
767785994133,6cyclictest1072678-21munin-run12:14:590
767785994131,8cyclictest927666-21ntpq09:45:570
767790994035,3cyclictest768021-21kworker/u8:4+flush-8:007:40:511
767790994034,4cyclictest834060-21kworker/u8:2+flush-8:008:51:001
767790994034,4cyclictest1704890-21systemd-journal12:34:371
767790994034,4cyclictest1092764-21apt-get12:35:441
767790994033,5cyclictest4117833-21kworker/u8:2+events_unbound07:55:581
767790994032,6cyclictest889035-21kworker/u8:3+events_unbound10:30:031
767785994036,3cyclictest768021-21kworker/u8:4+flush-8:007:36:010
767785994036,3cyclictest768021-21kworker/u8:4+flush-8:007:36:010
767790993934,4cyclictest768021-21kworker/u8:4+flush-8:008:05:481
767790993933,4cyclictest973770-21kworker/u8:0+events_unbound10:41:001
767785993929,8cyclictest942745-21ntpq10:00:570
767792993833,3cyclictest1058077-21kworker/u8:0+flush-8:012:00:552
767790993833,4cyclictest1058077-21kworker/u8:0+flush-8:012:06:041
767790993833,3cyclictest963689-21kworker/u8:1+flush-8:010:26:011
767785993833,4cyclictest834060-21kworker/u8:2+flush-8:011:36:030
767785993833,4cyclictest834060-21kworker/u8:2+flush-8:011:36:020
76778599382,30cyclictest779667-21kworker/0:3+events08:05:370
767790993729,6cyclictest889016-21latency_hist09:10:021
767790993727,8cyclictest813447-21ntpq07:50:591
767790993630,5cyclictest839327-21kworker/u8:0+events_unbound08:55:481
767790993629,6cyclictest834060-21kworker/u8:2+events_unbound09:55:471
767790993628,5cyclictest924033-21grep09:45:461
767790993627,6cyclictest889035-21kworker/u8:3+flush-8:010:46:001
767785993624,9cyclictest1704890-21systemd-journal10:55:010
10916482360,4sleep00-21swapper/012:31:000
767790993531,3cyclictest834060-21kworker/u8:2+flush-8:011:43:091
767790993530,4cyclictest844532-21kworker/u8:1+flush-8:008:35:491
767790993530,3cyclictest993609-21kworker/u8:4+events_unbound11:10:471
767790993529,4cyclictest993609-21kworker/u8:4+flush-8:012:10:521
767790993527,6cyclictest879420-21/usr/sbin/munin09:00:591
767790993526,6cyclictest906299-21kthreadcore09:25:511
767785993525,7cyclictest868370-21ntpq08:45:580
76778599351,28cyclictest779667-21kworker/0:3+events09:05:440
7674382354,10sleep10-21swapper/107:09:361
767792993430,3cyclictest839327-21kworker/u8:0+events_unbound08:59:592
767792993428,4cyclictest889035-21kworker/u8:3+events_unbound10:51:052
767792993428,4cyclictest834060-21kworker/u8:2+flush-8:009:40:452
767790993428,4cyclictest948812-21kworker/u8:0+flush-8:010:10:591
767790993428,4cyclictest948812-21kworker/u8:0+flush-8:010:10:591
767790993428,4cyclictest844532-21kworker/u8:1+events_unbound08:45:481
767790993428,4cyclictest834060-21kworker/u8:2+flush-8:009:24:451
767790993427,5cyclictest834060-21kworker/u8:2+events_unbound08:20:471
767790993426,6cyclictest889035-21kworker/u8:3+flush-8:010:01:031
76778599343,29cyclictest779667-21kworker/0:3+events08:50:440
767785993426,6cyclictest889035-21kworker/u8:3+flush-8:011:50:510
76778599342,26cyclictest973575-21kworker/0:1+events10:35:450
76778599341,32cyclictest779667-21kworker/0:3+events09:28:390
76778599340,29cyclictest772795-21kworker/0:0+events07:20:190
767792993329,3cyclictest948812-21kworker/u8:0+flush-8:010:20:582
767792993326,5cyclictest1704890-21systemd-journal09:49:592
767792993323,8cyclictest768021-21kworker/u8:4+flush-8:008:00:012
767790993328,4cyclictest948812-21kworker/u8:0+events_unbound10:20:461
767790993328,4cyclictest834060-21kworker/u8:2+flush-8:011:16:021
767790993326,5cyclictest1058157-21apt-get12:00:451
767790993326,4cyclictest973770-21kworker/u8:0+flush-8:010:35:531
767790993325,6cyclictest839327-21kworker/u8:0+flush-8:008:30:571
767785993328,3cyclictest811821-21kthreadcore07:50:540
76778599332,26cyclictest1008405-21kworker/0:1+events12:35:450
76778599331,31cyclictest779667-21kworker/0:3+events09:02:590
76778599331,26cyclictest1008405-21kworker/0:1+events11:30:430
76778599330,29cyclictest779667-21kworker/0:3+events10:10:210
76778599330,29cyclictest779667-21kworker/0:3+events10:10:200
767792993228,3cyclictest948812-21kworker/u8:0+events_unbound10:10:522
767792993228,3cyclictest948812-21kworker/u8:0+events_unbound10:10:512
767790993223,7cyclictest798569-21ntpq07:35:571
767790993223,7cyclictest798569-21ntpq07:35:561
76778599322,28cyclictest1008405-21kworker/0:1+events11:20:470
76778599321,30cyclictest779667-21kworker/0:3+events10:32:070
767785993210,21cyclictest779667-21kworker/0:3+events09:34:590
767790993126,4cyclictest993609-21kworker/u8:4+flush-8:011:20:311
767790993125,5cyclictest993609-21kworker/u8:4+events_unbound11:00:471
767790993125,4cyclictest993609-21kworker/u8:4+events_unbound11:55:511
767790993125,4cyclictest993609-21kworker/u8:4+events_unbound11:25:591
767790993124,5cyclictest834060-21kworker/u8:2+flush-8:009:35:581
76778599318,18cyclictest779667-21kworker/0:3+events08:30:050
76778599313,27cyclictest779667-21kworker/0:3+events08:40:570
76778599311,29cyclictest779667-21kworker/0:3+events08:37:180
7673422313,9sleep20-21swapper/207:08:202
767790993024,5cyclictest714507-21kworker/u8:0+flush-8:007:11:111
76778599309,16cyclictest779667-21kworker/0:3+events07:30:270
767785993025,3cyclictest1054149-21kthreadcore11:55:530
76778599302,27cyclictest779667-21kworker/0:3+events08:00:100
76778599302,26cyclictest993360-21kworker/0:0+events11:01:010
76778599302,26cyclictest1008405-21kworker/0:1+events11:15:490
76778599302,23cyclictest779667-21kworker/0:3+events09:35:030
767785993021,7cyclictest829666-21/usr/sbin/munin08:10:590
76778599301,28cyclictest779667-21kworker/0:3+events09:15:590
76778599300,28cyclictest779667-21kworker/0:3+events10:06:430
767792992925,2cyclictest984094-21fschecks_time10:45:492
767792992924,3cyclictest780067-21aten2_r5power_v07:20:482
767792992923,4cyclictest1007847-21unixbench_multi11:06:052
767792992920,7cyclictest864331-21awk08:44:592
767790992924,3cyclictest1052907-21cron11:55:011
767790992922,5cyclictest834060-21kworker/u8:2+events_unbound12:20:491
767790992921,4cyclictest809029-21unixbench_singl07:46:031
76778599298,19cyclictest779667-21kworker/0:3+events08:15:040
76778599297,18cyclictest1008405-21kworker/0:1+events12:00:430
76778599291,27cyclictest779667-21kworker/0:3+events08:27:170
767785992910,18cyclictest779667-21kworker/0:3+events10:18:350
767792992825,2cyclictest824845-21aten2_r5power_v08:05:462
767792992824,2cyclictest939058-21aten2_r5power_e10:00:452
767792992823,4cyclictest767532-21kworker/u8:1+flush-8:007:10:102
76778599289,18cyclictest779667-21kworker/0:3+events07:58:430
76778599288,19cyclictest993360-21kworker/0:0+events11:13:460
76778599288,19cyclictest779667-21kworker/0:3+events08:25:010
76778599288,15cyclictest779667-21kworker/0:3+events09:55:080
767785992825,2cyclictest1023573-21/usr/sbin/munin11:26:000
76778599282,25cyclictest779667-21kworker/0:3+events10:29:110
76778599281,26cyclictest973575-21kworker/0:1+events10:47:150
76778599281,26cyclictest779667-21kworker/0:3+events10:20:440
76778599281,26cyclictest1008405-21kworker/0:1+events12:15:450
767792992723,3cyclictest943964-21aten2_r5power_c10:05:452
767792992723,3cyclictest934242-21cpuspeed_turbos09:55:472
767792992723,2cyclictest873826-21unixbench_singl08:51:052
767792992720,5cyclictest1704890-21systemd-journal11:30:002
767792992719,6cyclictest1704890-21systemd-journal11:40:002
767792992719,6cyclictest1704890-21systemd-journal11:40:002
767790992722,2cyclictest0-21swapper/111:35:481
767790992722,2cyclictest0-21swapper/111:35:481
767790992718,7cyclictest997463-21ntpq10:55:551
76778599277,19cyclictest779667-21kworker/0:3+events07:42:530
76778599275,21cyclictest779667-21kworker/0:3+events08:57:310
76778599272,24cyclictest779667-21kworker/0:3+events07:27:150
76778599272,24cyclictest0-21swapper/010:56:010
76778599270,26cyclictest993360-21kworker/0:0+events11:06:090
767792992622,2cyclictest839869-21fschecks_count08:20:482
767792992622,2cyclictest785158-21tr07:25:472
767792992621,3cyclictest979063-21cpuspeed_turbos10:40:472
767792992522,2cyclictest829912-21cpuspeed_turbos08:10:492
767792992521,2cyclictest800070-21fschecks_count07:40:512
767792992520,4cyclictest1053756-21cut11:55:522
767792992520,3cyclictest1052534-21unixbench_multi11:51:032
767792992417,5cyclictest819242-21apt-get08:00:032
767792992412,8cyclictest774996-21apt-get07:15:462
8439332230,3sleep375-21kworker/3:1+events08:21:043
767792992319,2cyclictest993870-21cpuspeed_turbos10:55:472
767792992319,2cyclictest1043647-21fschecks_count11:45:502
767792992217,3cyclictest889351-21aten2_r5power_c09:10:452
767790992216,4cyclictest1083230-21fschecks_time12:25:481
10138932220,7sleep30-21swapper/311:15:463
767792992118,2cyclictest884437-21aten2_r5power_e09:05:462
767792992110,2cyclictest421rcuog/212:05:542
767792992017,2cyclictest903443-21sed09:21:042
767792992017,2cyclictest1092988-21cpuspeed_turbos12:35:472
767792992016,3cyclictest929206-21fschecks_time09:50:492
767792992014,4cyclictest834060-21kworker/u8:2+events_unbound09:35:092
96808521911,5sleep30-21swapper/310:26:323
76779299193,12cyclictest1068067-21apt-get12:10:462
76779299192,12cyclictest953850-21apt-get10:15:452
767792991916,2cyclictest964048-21cut10:25:482
767792991916,2cyclictest794859-21aten2_r5power_e07:35:462
767792991916,2cyclictest794859-21aten2_r5power_e07:35:452
767792991915,3cyclictest909307-21cpuspeed_turbos09:30:472
76778599192,12cyclictest767789-21date07:10:010
10405262190,5sleep3481ktimers/311:40:543
767792991814,2cyclictest897294-21kthreadcore09:15:542
767792991814,2cyclictest0-21swapper/211:30:492
767792991811,5cyclictest1077686-21grep12:20:002
76779299178,7cyclictest0-21swapper/207:45:552
76779299175,2cyclictest10138982sort11:15:452
767792991712,4cyclictest839327-21kworker/u8:0+events_unbound09:00:202
767792991712,3cyclictest0-21swapper/207:50:522
76779299162,13cyclictest0-21swapper/212:30:152
76779299162,13cyclictest0-21swapper/212:28:192
76779299162,13cyclictest0-21swapper/211:22:172
767792991612,2cyclictest0-21swapper/212:20:492
767792991612,2cyclictest0-21swapper/208:50:002
767792991611,3cyclictest0-21swapper/210:35:522
767792991611,3cyclictest0-21swapper/210:30:522
767792991611,3cyclictest0-21swapper/208:25:542
76779299161,11cyclictest838532-21ps08:16:022
767792991610,4cyclictest908758-21cron09:30:002
7735912144,6sleep30-21swapper/307:15:043
10074292142,8sleep30-21swapper/311:06:003
9088992132,6sleep30-21swapper/309:30:013
9038222132,7sleep30-21swapper/309:25:013
8939572132,5sleep30-21swapper/309:15:013
8587822132,7sleep30-21swapper/308:36:053
8443062132,6sleep30-21swapper/308:25:013
8096802133,6sleep30-21swapper/307:50:473
10824152132,7sleep30-21swapper/312:22:403
10720532132,7sleep30-21swapper/312:11:053
10533102133,6sleep30-21swapper/311:55:483
9991532122,6sleep30-21swapper/311:00:513
9834882122,5sleep30-21swapper/310:45:013
9787842122,6sleep30-21swapper/310:40:203
9737362123,5sleep30-21swapper/310:35:033
9591152122,6sleep30-21swapper/310:20:503
9461272122,6sleep30-21swapper/310:05:533
9343952122,6sleep30-21swapper/309:55:503
9326852124,5sleep30-21swapper/309:51:013
9184662122,6sleep30-21swapper/309:37:413
8981472122,7sleep30-21swapper/309:16:013
8843842122,6sleep30-21swapper/309:05:473
8806272123,5sleep30-21swapper/309:00:523
8693412122,5sleep30-21swapper/308:50:023
8496432122,6sleep30-21swapper/308:30:483
8341502122,6sleep30-21swapper/308:13:013
8197672124,5sleep30-21swapper/308:00:423
8182632122,6sleep30-21swapper/307:55:573
8086112123,5sleep30-21swapper/307:46:023
8034822122,6sleep30-21swapper/307:41:003
7985842122,6sleep30-21swapper/307:35:583
7985842122,6sleep30-21swapper/307:35:573
7854052122,6sleep30-21swapper/307:25:503
7805142122,6sleep30-21swapper/307:20:543
10966212122,6sleep30-21swapper/312:35:593
10726972122,6sleep30-21swapper/312:15:023
10584022122,6sleep30-21swapper/312:00:483
10480082122,6sleep30-21swapper/311:50:023
10434142122,7sleep30-21swapper/311:45:483
10284862122,6sleep30-21swapper/311:30:323
10240062123,5sleep30-21swapper/311:25:503
10130482122,6sleep30-21swapper/311:11:063
9948012112,5sleep30-21swapper/310:55:533
9692892112,5sleep30-21swapper/310:30:483
9540982112,5sleep30-21swapper/310:15:483
9493642112,5sleep30-21swapper/310:10:513
9493642112,5sleep30-21swapper/310:10:513
9389722111,6sleep30-21swapper/310:00:443
9240192112,5sleep30-21swapper/309:45:463
9045172112,5sleep30-21swapper/309:25:493
8749262112,5sleep30-21swapper/308:55:513
8647232111,6sleep30-21swapper/308:45:483
8596092112,5sleep30-21swapper/308:40:013
8345482112,6sleep30-21swapper/308:15:073
8281802112,6sleep30-21swapper/308:05:563
7898472112,5sleep30-21swapper/307:30:453
7680072112,5sleep30-21swapper/307:10:013
10877672112,5sleep30-21swapper/312:30:033
10832892112,5sleep30-21swapper/312:25:493
10631402112,5sleep30-21swapper/312:05:473
10332102112,5sleep30-21swapper/311:35:013
10332102112,5sleep30-21swapper/311:35:003
10197182113,5sleep30-21swapper/311:20:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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