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2026-07-11 - 03:19

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 Sat Jul 11, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83885023670,2sleep3451irq_work/319:30:123
815152998073,5cyclictest794648-21kworker/u8:2+events_unbound19:50:251
815148996357,4cyclictest956722-21kworker/u8:3+flush-8:023:00:180
815152996155,5cyclictest956722-21kworker/u8:3+events_unbound22:45:181
815152996155,5cyclictest956722-21kworker/u8:3+events_unbound22:45:181
815152996152,7cyclictest870932-21ntpq20:00:181
815152996152,7cyclictest870932-21ntpq20:00:181
815152996055,4cyclictest956722-21kworker/u8:3+events_unbound22:35:171
815148996054,4cyclictest950332-21kworker/u8:2+flush-8:021:25:180
815148996052,5cyclictest1704890-21systemd-journal20:35:180
815152995753,2cyclictest841697-21kworker/u8:1+events_unbound21:20:171
815152995752,4cyclictest1090106-21kworker/u8:3+flush-8:023:50:181
815152995744,4cyclictest916752-21kworker/u8:2+flush-8:020:55:171
815152995651,4cyclictest3650584-21kworker/u8:0+events_unbound19:40:191
815148995650,5cyclictest841697-21kworker/u8:1+flush-8:020:10:190
815152995548,5cyclictest841697-21kworker/u8:1+flush-8:020:40:171
815152995443,9cyclictest1704890-21systemd-journal22:55:171
815152995348,3cyclictest916752-21kworker/u8:2+flush-8:021:00:171
815148995247,4cyclictest1101738-21kworker/u8:2+flush-8:023:55:150
815148995246,4cyclictest950332-21kworker/u8:2+flush-8:021:35:210
11176592510,3sleep375-21kworker/3:1+events00:10:133
815152995045,4cyclictest966141-21kworker/u8:0+flush-8:022:30:211
815152995045,4cyclictest956722-21kworker/u8:3+flush-8:022:50:181
815152995045,4cyclictest950332-21kworker/u8:2+flush-8:023:10:171
815152995045,4cyclictest905738-21kworker/u8:3+events_unbound21:10:201
815152995045,4cyclictest841697-21kworker/u8:1+events_unbound20:50:191
815152995045,3cyclictest950332-21kworker/u8:2+flush-8:022:05:201
815152995043,5cyclictest1134664-21kworker/u8:2+flush-8:000:30:181
815148995042,6cyclictest841697-21kworker/u8:1+flush-8:019:55:170
815152994943,5cyclictest950332-21kworker/u8:2+flush-8:022:15:221
815152994943,5cyclictest882523-21kworker/u8:2+flush-8:020:30:161
815148994945,3cyclictest841697-21kworker/u8:1+events_unbound21:10:090
815148994943,5cyclictest966141-21kworker/u8:0+flush-8:021:55:160
815152994843,3cyclictest950332-21kworker/u8:2+events_unbound23:30:161
815152994742,4cyclictest465241-21kworker/u8:3+events_unbound19:20:171
815152994741,4cyclictest3650584-21kworker/u8:0+flush-8:019:25:231
815152994642,3cyclictest966141-21kworker/u8:0+events_unbound21:55:211
815152994642,3cyclictest956722-21kworker/u8:3+flush-8:022:10:211
815152994640,4cyclictest1122978-21kworker/u8:1+flush-8:000:15:201
815148994642,3cyclictest950332-21kworker/u8:2+flush-8:022:40:230
815148994641,3cyclictest950332-21kworker/u8:2+events_unbound22:05:210
815148994640,4cyclictest3650584-21kworker/u8:0+events_unbound20:05:170
10783452460,3sleep375-21kworker/3:1+events23:30:113
815152994541,3cyclictest950332-21kworker/u8:2+events_unbound23:15:221
815152994541,3cyclictest1090106-21kworker/u8:3+events_unbound00:00:151
815152994540,4cyclictest905738-21kworker/u8:3+events_unbound21:15:091
815148994540,3cyclictest956722-21kworker/u8:3+flush-8:022:50:210
815148994540,3cyclictest1101738-21kworker/u8:2+flush-8:000:10:180
8951572440,5sleep20-21swapper/220:25:132
815152994439,4cyclictest950332-21kworker/u8:2+events_unbound21:45:201
815152994439,3cyclictest841697-21kworker/u8:1+events_unbound20:45:181
815152994439,3cyclictest1122978-21kworker/u8:1+events_unbound00:40:011
815148994439,3cyclictest1101738-21kworker/u8:2+flush-8:000:05:170
815148994438,5cyclictest1134664-21kworker/u8:2+flush-8:000:30:150
815148994437,5cyclictest3650584-21kworker/u8:0+flush-8:019:35:190
815153994326,15cyclictest815386-21aten2_r5power_v19:10:042
815153994314,21cyclictest0-21swapper/222:29:592
815152994337,5cyclictest950332-21kworker/u8:2+flush-8:021:50:151
815148994339,2cyclictest841697-21kworker/u8:1+flush-8:021:20:190
815148994338,4cyclictest950332-21kworker/u8:2+flush-8:021:50:170
815148994338,3cyclictest1065063-21kworker/u8:1+flush-8:023:20:210
815148994333,8cyclictest1704890-21systemd-journal19:10:160
815152994238,3cyclictest841697-21kworker/u8:1+flush-8:019:45:161
815152994236,4cyclictest950332-21kworker/u8:2+flush-8:022:20:101
815152994235,5cyclictest956722-21kworker/u8:3+flush-8:022:00:171
81478624228,9sleep10-21swapper/119:07:561
815152994131,4cyclictest966141-21kworker/u8:0+events_unbound23:40:181
815153994026,12cyclictest1704890-21systemd-journal23:49:172
815152994035,4cyclictest465241-21kworker/u8:3+flush-8:019:30:211
815152994034,4cyclictest1101738-21kworker/u8:2+flush-8:000:05:231
815148994034,4cyclictest1090106-21kworker/u8:3+flush-8:023:50:220
815153993925,12cyclictest867174-21aten2_r5power_c20:00:062
815153993925,12cyclictest867174-21aten2_r5power_c20:00:052
815153993924,13cyclictest877361-21fschecks_time20:10:082
815152993935,2cyclictest1105615-21munin-run00:00:001
815152993934,4cyclictest966141-21kworker/u8:0+events_unbound21:40:181
815152993934,3cyclictest1090106-21kworker/u8:3+events_unbound00:25:191
815148993934,4cyclictest950332-21kworker/u8:2+flush-8:023:10:160
815152993832,5cyclictest956722-21kworker/u8:3+events_unbound23:05:201
815152993832,4cyclictest882523-21kworker/u8:2+events_unbound20:20:211
815152993830,6cyclictest950332-21kworker/u8:2+flush-8:021:30:231
815148993831,5cyclictest851087-21ntpq19:40:180
815153993730,5cyclictest1704890-21systemd-journal23:15:002
815153993722,13cyclictest1050880-21aten2_r5power_c23:05:062
815152993732,4cyclictest1090106-21kworker/u8:3+flush-8:023:45:241
815152993731,4cyclictest891950-21apt-get20:25:021
815148993733,3cyclictest950332-21kworker/u8:2+events_unbound23:30:180
815148993732,3cyclictest465241-21kworker/u8:3+flush-8:019:20:180
815148993731,4cyclictest1015135-21kworker/u8:1+events_unbound22:25:220
815153993621,13cyclictest936573-21aten2_r5power_c21:10:052
815153993616,18cyclictest1069538-21grep23:20:152
815152993632,3cyclictest794648-21kworker/u8:2+flush-8:019:35:221
815152993630,5cyclictest841697-21kworker/u8:1+flush-8:021:05:211
815152993629,6cyclictest882523-21kworker/u8:2+events_unbound20:35:181
815148993627,6cyclictest1125534-21latency_hist00:20:020
81515399358,21cyclictest886969-21apt-get20:20:042
815152993531,3cyclictest3650584-21kworker/u8:0+events_unbound19:10:251
815148993529,4cyclictest882523-21kworker/u8:2+flush-8:020:20:220
815153993425,7cyclictest1704890-21systemd-journal19:49:592
815153993421,11cyclictest946944-21cpuspeed_turbos21:20:062
815153993417,15cyclictest931663-21aten2_r5power_e21:05:052
815152993429,3cyclictest1026726-21irqcore22:40:091
815152993428,5cyclictest956722-21kworker/u8:3+flush-8:022:25:171
815152993428,4cyclictest966141-21kworker/u8:0+flush-8:023:25:181
815148993430,3cyclictest401-21dbus-daemon21:45:010
815148993429,4cyclictest1122978-21kworker/u8:1+flush-8:000:20:190
815148993429,3cyclictest1090106-21kworker/u8:3+events_unbound23:40:360
81515399333,13cyclictest10284602cut22:40:122
815153993328,3cyclictest1045619-21apt22:59:592
815153993317,14cyclictest1704890-21systemd-journal22:35:002
81515399331,28cyclictest1074400-21kthreadcore23:25:132
81515399331,25cyclictest1035980-21apt-get22:50:052
815153993311,18cyclictest978443-21kthreadcore21:50:102
815152993328,3cyclictest950332-21kworker/u8:2+events_unbound21:35:181
815152993327,5cyclictest882523-21kworker/u8:2+flush-8:020:15:241
815148993328,4cyclictest950332-21kworker/u8:2+events_unbound21:45:100
815148993328,3cyclictest1065063-21kworker/u8:1+flush-8:023:35:050
815148993326,5cyclictest950332-21kworker/u8:2+flush-8:022:15:160
81515399322,23cyclictest916708-21apt-get20:50:062
81515399321,27cyclictest859855-21grep19:50:162
81515399321,25cyclictest1087032-21kthreadcore23:40:102
815152993227,3cyclictest841697-21kworker/u8:1+events_unbound19:55:191
81515299320,31cyclictest1-21systemd23:37:171
815148993228,3cyclictest916752-21kworker/u8:2+events_unbound21:00:200
815148993227,3cyclictest896654-21kworker/u8:0+flush-8:020:45:160
815148993227,3cyclictest465241-21kworker/u8:3+events_unbound19:30:200
815148993226,5cyclictest3650584-21kworker/u8:0+flush-8:020:00:210
815148993226,5cyclictest3650584-21kworker/u8:0+flush-8:020:00:210
815148993226,4cyclictest966141-21kworker/u8:0+events_unbound00:35:080
815148993225,5cyclictest465241-21kworker/u8:3+events_unbound19:15:040
815148993223,5cyclictest857408-21ls19:50:080
815148993220,10cyclictest956722-21kworker/u8:3+flush-8:022:35:090
8215382310,3chrt0-21swapper/219:15:032
81515399319,19cyclictest970172-21tr21:40:142
81515399312,22cyclictest862155-21apt-get19:55:042
81515399312,22cyclictest842309-21apt-get19:35:062
815153993116,13cyclictest0-21swapper/221:00:012
815153993115,14cyclictest0-21swapper/200:25:002
81515399311,23cyclictest1080805-21apt-get23:35:042
815152993125,4cyclictest966141-21kworker/u8:0+flush-8:000:20:081
815148993127,3cyclictest465241-21kworker/u8:3+events_unbound19:25:060
815148993126,3cyclictest841697-21kworker/u8:1+events_unbound20:55:060
815148993125,4cyclictest794648-21kworker/u8:2+events_unbound19:45:080
815148993124,5cyclictest950332-21kworker/u8:2+flush-8:023:15:180
81515399305,11cyclictest0-21swapper/219:25:072
815153993027,2cyclictest906517-21cron20:40:012
815153993025,3cyclictest1000667-21unixbench_singl22:10:232
81515399302,22cyclictest1021137-21apt-get22:35:042
81515399301,25cyclictest1105819-21latency_hist00:00:022
81515399301,24cyclictest1119719-21ntpq00:10:202
81515399300,26cyclictest1130686-21date00:25:022
815152993026,3cyclictest966141-21kworker/u8:0+events_unbound23:00:231
815152993022,6cyclictest1069732-21ntpq23:20:181
815148993025,4cyclictest966141-21kworker/u8:0+events_unbound23:25:250
81469323022,3sleep00-21swapper/019:06:420
815153992925,2cyclictest1075896-21aten2_r5power_c23:30:032
815153992924,3cyclictest1060851-21aten2_r5power_v23:15:052
815153992919,8cyclictest1704890-21systemd-journal22:20:002
81515399291,25cyclictest830325-21cut19:20:142
815152992923,4cyclictest951672-21apt-get21:25:031
815152992922,5cyclictest465241-21kworker/u8:3+flush-8:019:15:171
815148992924,4cyclictest956722-21kworker/u8:3+flush-8:022:00:170
815148992923,4cyclictest956722-21kworker/u8:3+events_unbound23:05:180
81515399286,18cyclictest882025-21cut20:15:122
815153992824,2cyclictest837430-21aten2_r5power_e19:30:062
815153992814,12cyclictest0-21swapper/219:40:192
81515399281,23cyclictest971637-21/usr/sbin/munin21:45:052
81515399281,23cyclictest956818-21/usr/sbin/munin21:30:062
81515399281,22cyclictest1095902-21apt-get23:50:052
815153992811,15cyclictest931341-21cron21:05:002
815152992824,2cyclictest0-21swapper/120:15:001
815148992824,3cyclictest841697-21kworker/u8:1+flush-8:020:30:320
815148992818,8cyclictest1704890-21systemd-journal22:50:000
815148992818,8cyclictest1704890-21systemd-journal22:49:590
815153992723,2cyclictest1031337-21fschecks_count22:45:092
815153992723,2cyclictest1031337-21fschecks_count22:45:082
81515399272,21cyclictest911753-21apt-get20:45:032
81515399271,24cyclictest1109789-21/usr/sbin/munin00:00:192
81515399271,22cyclictest962035-21/usr/sbin/munin21:35:102
81515399271,22cyclictest941984-21diskstats21:15:092
81515399270,25cyclictest1125230-21taskset00:16:222
81515399270,24cyclictest956305-21chrt21:28:552
81515399270,16cyclictest874574-21kthreadcore20:05:142
815148992723,3cyclictest950332-21kworker/u8:2+events_unbound22:33:180
815148992723,3cyclictest1090106-21kworker/u8:3+events_unbound00:00:200
81515399263,20cyclictest986411-21latency_hist22:00:002
81515399261,23cyclictest991787-21/usr/sbin/munin22:05:082
81515399261,23cyclictest1115219-21/usr/sbin/munin00:05:252
81515399261,21cyclictest1006320-21/usr/sbin/munin22:20:062
815152992621,3cyclictest3650584-21kworker/u8:0+flush-8:020:05:121
815152992618,6cyclictest1115823-21/usr/sbin/munin00:10:161
815148992622,3cyclictest966141-21kworker/u8:0+events_unbound23:47:180
815148992622,3cyclictest950332-21kworker/u8:2+events_unbound22:10:120
815148992621,4cyclictest950332-21kworker/u8:2+events_unbound21:30:120
81515399253,17cyclictest900678-21ntpq20:30:162
815153992520,3cyclictest986594-21aten2_r5power_v22:00:052
81515399251,21cyclictest1045962-21/usr/sbin/munin23:00:052
815153992510,13cyclictest1135890-21cpuspeed_turbos00:30:062
81515399250,21cyclictest1140386-21cron00:35:012
815148992520,4cyclictest882523-21kworker/u8:2+events_unbound20:15:260
815148992518,5cyclictest0-21swapper/021:05:090
81515399230,21cyclictest910558-21/usr/sbin/munin20:40:162
815148992320,2cyclictest1010962-21cron22:24:590
815148992319,3cyclictest841697-21kworker/u8:1+flush-8:021:15:060
815148992318,4cyclictest882523-21kworker/u8:2+events_unbound20:25:260
815148992317,4cyclictest1131441-21cut00:25:100
815148992218,3cyclictest841697-21kworker/u8:1+events_unbound20:51:070
815148992216,4cyclictest841697-21kworker/u8:1+events_unbound20:40:030
815148992115,4cyclictest1043603-21kthreadcore22:55:140
8104772204,9sleep20-21swapper/219:05:092
8146862183,9sleep30-21swapper/319:06:383
8659642142,8sleep30-21swapper/319:55:183
9871932133,6sleep30-21swapper/322:00:113
9452852132,7sleep30-21swapper/321:15:173
8988702132,7sleep30-21swapper/320:30:133
8200202132,6sleep30-21swapper/319:15:003
11404232132,6sleep30-21swapper/300:35:013
9968042122,6sleep30-21swapper/322:10:103
9951522121,7sleep30-21swapper/322:05:173
9817712122,6sleep30-21swapper/321:55:053
9769242122,6sleep30-21swapper/321:50:083
9715662122,5sleep30-21swapper/321:45:023
9668822122,6sleep30-21swapper/321:40:083
9564092122,5sleep30-21swapper/321:30:023
9465572122,6sleep30-21swapper/321:20:013
9313392122,5sleep30-21swapper/321:05:013
9257172122,6sleep30-21swapper/320:55:223
9172662122,6sleep30-21swapper/320:50:113
9117252122,5sleep30-21swapper/320:45:023
9068022122,6sleep30-21swapper/320:40:053
9021092122,6sleep30-21swapper/320:35:083
8921992122,6sleep30-21swapper/320:25:083
8863972122,6sleep30-21swapper/320:16:163
8718902122,6sleep30-21swapper/320:05:023
8673852122,6sleep30-21swapper/320:00:073
8673852122,6sleep30-21swapper/320:00:073
8576602122,6sleep30-21swapper/319:50:133
8569552122,6sleep30-21swapper/319:50:003
8470732122,5sleep30-21swapper/319:40:013
8427262122,6sleep30-21swapper/319:35:123
8324112122,6sleep30-21swapper/319:25:053
11394202122,6sleep30-21swapper/300:30:173
11306872122,6sleep30-21swapper/300:25:033
11150012122,6sleep30-21swapper/300:05:243
11058162122,5sleep30-21swapper/300:00:023
10997992122,6sleep30-21swapper/323:50:243
10904802122,5sleep30-21swapper/323:45:013
10900372122,6sleep30-21swapper/323:40:243
10809662122,6sleep30-21swapper/323:35:073
10756032122,6sleep30-21swapper/323:30:013
10702362122,6sleep30-21swapper/323:20:263
10555782122,6sleep30-21swapper/323:10:013
10451602122,6sleep30-21swapper/322:55:253
10399922122,6sleep30-21swapper/322:50:243
10274892122,6sleep30-21swapper/322:40:133
10159432122,5sleep30-21swapper/322:30:003
10148362122,6sleep30-21swapper/322:25:153
10105452122,6sleep30-21swapper/322:20:263
9625802112,5sleep30-21swapper/321:35:143
9519212112,5sleep30-21swapper/321:25:083
9365152112,5sleep30-21swapper/321:10:033
9318602112,5sleep30-21swapper/321:05:083
8771242112,5sleep30-21swapper/320:10:063
8279352112,5sleep30-21swapper/319:20:113
8191852112,5sleep30-21swapper/319:10:193
11261072112,5sleep30-21swapper/300:20:083
11208302112,5sleep30-21swapper/300:15:043
11012112112,5sleep30-21swapper/323:55:093
10616232112,5sleep30-21swapper/323:15:113
10510992112,6sleep30-21swapper/323:05:093
10310762112,6sleep30-21swapper/322:45:063
10310762112,6sleep30-21swapper/322:45:053
10211112111,5sleep30-21swapper/322:35:033
10024082112,5sleep30-21swapper/322:15:123
8874872101,5sleep30-21swapper/320:20:113
10461262102,5sleep30-21swapper/323:00:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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