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2026-07-07 - 19:40

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 792 highest latencies:
System rack5slot4s.osadl.org (updated Tue Jul 07, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
355366899174170,2cyclictest0-21swapper/112:25:211
355367299156150,3cyclictest3873632-21ntpq12:25:212
371055921510,3sleep375-21kworker/3:1-events09:45:113
37832332760,4chrt0-21swapper/110:55:151
3553663997257,14cyclictest0-21swapper/012:25:200
3553668997057,10cyclictest3884433-21latency_hist12:40:011
3553663996764,2cyclictest3839556-21kworker/u8:3+events_unbound12:00:250
3553663996661,4cyclictest3561071-21kworker/u8:2+events_unbound08:00:230
3553663996158,2cyclictest3804740-21kworker/u8:0+events_unbound11:20:250
3553663996057,2cyclictest3825288-21kworker/u8:2+events_unbound11:45:240
3553663996057,2cyclictest3825288-21kworker/u8:2+events_unbound11:45:230
38140282590,1sleep03814031-21sed11:25:200
3553663995953,4cyclictest3561071-21kworker/u8:2+events_unbound09:00:230
3553668995849,6cyclictest3804984-21latency_hist11:20:001
3553663995853,4cyclictest3700559-21kworker/u8:1+events_unbound09:50:250
3553663995751,4cyclictest3561071-21kworker/u8:2+events_unbound08:55:240
3553663995749,3cyclictest3561071-21kworker/u8:2+events_unbound09:10:250
3553668995644,9cyclictest3728975-21ntpq10:00:201
3553663995653,2cyclictest3760156-21kworker/u8:0+events_unbound10:40:240
3553663995652,3cyclictest3690108-21kworker/u8:3+events_unbound09:35:240
3553663995652,3cyclictest2561318-21kworker/u8:1+events_unbound07:20:240
3553668995545,8cyclictest3744088-21ntpq10:15:221
3553668995447,5cyclictest3604786-21ntpq07:55:191
3553663995450,3cyclictest3490846-21kworker/u8:0+events_unbound09:05:230
3553668995343,7cyclictest1704890-21systemd-journal12:30:231
3553663995350,2cyclictest3700559-21kworker/u8:1+events_unbound09:45:250
3553663995349,3cyclictest3754865-21kworker/u8:3+events_unbound11:15:210
3553672995240,9cyclictest3615600-21/usr/sbin/munin08:10:002
3553668995240,8cyclictest1704890-21systemd-journal08:16:221
3553663995248,3cyclictest3561071-21kworker/u8:2+events_unbound07:50:240
3553668995144,5cyclictest3490846-21kworker/u8:0+flush-8:008:35:241
3553663995147,3cyclictest3561071-21kworker/u8:2+events_unbound09:25:250
3553663995142,6cyclictest3709943-21latency_hist09:45:020
3553663994945,3cyclictest3490846-21kworker/u8:0+events_unbound08:15:250
3553663994942,5cyclictest3754865-21kworker/u8:3+events_unbound10:55:200
3553668994836,9cyclictest3679245-21ntpq09:10:191
3553663994744,2cyclictest3754865-21kworker/u8:3+events_unbound10:50:120
3553663994743,3cyclictest3765389-21kworker/u8:1+events_unbound11:40:190
3553663994743,3cyclictest2561318-21kworker/u8:1+events_unbound07:16:220
3553663994742,4cyclictest3553518-21kworker/u8:3+events_unbound07:10:080
3553663994642,3cyclictest3561071-21kworker/u8:2+events_unbound09:20:260
3553663994642,3cyclictest3561071-21kworker/u8:2+events_unbound09:20:250
3553663994640,4cyclictest3561071-21kworker/u8:2+events_unbound07:55:200
3553668994538,4cyclictest2561318-21kworker/u8:1+flush-8:007:19:591
3553663994541,3cyclictest3804740-21kworker/u8:0+events_unbound11:35:100
3553663994541,3cyclictest3765389-21kworker/u8:1+events_unbound12:15:100
3553663994541,3cyclictest3734853-21kworker/u8:1+events_unbound10:30:180
3553663994541,3cyclictest3490846-21kworker/u8:0+events_unbound08:35:300
3553663994541,3cyclictest3490846-21kworker/u8:0+events_unbound07:42:210
3553663994441,2cyclictest3561071-21kworker/u8:2+events_unbound08:40:300
3553663994440,3cyclictest3864049-21kworker/u8:0+events_unbound12:35:130
3553663994440,3cyclictest3849376-21kworker/u8:2+events_unbound12:22:230
3553663994440,3cyclictest3765389-21kworker/u8:1+events_unbound11:05:130
3553663994440,3cyclictest3765389-21kworker/u8:1+events_unbound10:49:440
3553663994440,3cyclictest3490846-21kworker/u8:0+events_unbound08:10:300
3553668994334,7cyclictest3585585-21apt-get07:40:011
3553668994333,8cyclictest1704890-21systemd-journal12:10:011
3553663994340,2cyclictest3849376-21kworker/u8:2+events_unbound12:34:370
3553663994340,2cyclictest3765389-21kworker/u8:1+events_unbound11:04:240
3553663994340,2cyclictest3704588-21kworker/u8:4+events_unbound10:10:130
3553663994339,3cyclictest3704588-21kworker/u8:4+events_unbound10:23:220
3553663994339,3cyclictest3561071-21kworker/u8:2+events_unbound08:45:140
3553663994329,12cyclictest1704890-21systemd-journal08:25:220
3553668994235,5cyclictest3635863-21apt-get08:30:071
3553668994235,5cyclictest1704890-21systemd-journal12:00:001
3553668994233,6cyclictest3655410-21latency_hist08:50:011
3553668994230,9cyclictest1704890-21systemd-journal09:36:211
3553663994238,3cyclictest3804740-21kworker/u8:0+events_unbound11:50:390
3553663994237,4cyclictest3561071-21kworker/u8:2+events_unbound07:46:220
3553663994226,11cyclictest1704890-21systemd-journal12:09:560
3553668994135,4cyclictest3490846-21kworker/u8:0+flush-8:008:10:121
3553668994134,4cyclictest3765389-21kworker/u8:1+flush-8:011:00:201
3553663994138,2cyclictest3690108-21kworker/u8:3+events_unbound09:34:320
3553663994137,3cyclictest3839556-21kworker/u8:3+events_unbound11:56:370
3553663994137,3cyclictest3804740-21kworker/u8:0+events_unbound11:32:230
3553663994137,3cyclictest3561071-21kworker/u8:2+events_unbound08:10:010
3553668994031,7cyclictest3575385-21latency_hist07:30:001
3553668994030,8cyclictest3848895-21ntpq12:00:201
3553668994025,10cyclictest1704890-21systemd-journal10:32:231
3553663994036,3cyclictest3719515-21kworker/u8:2+events_unbound10:05:090
3553663994036,3cyclictest3561071-21kworker/u8:2+events_unbound07:30:100
3553663994036,3cyclictest3490846-21kworker/u8:0+events_unbound09:59:240
3553663994036,3cyclictest3490846-21kworker/u8:0+events_unbound07:36:230
3553668993933,4cyclictest3561071-21kworker/u8:2+events_unbound08:05:191
3553668993932,5cyclictest3585410-21kworker/u8:3+flush-8:008:25:281
3553663993936,2cyclictest3490846-21kworker/u8:0+events_unbound09:17:000
3553663993935,3cyclictest3779469-21kworker/u8:4+events_unbound11:12:230
3553668993830,6cyclictest3868705-21ntpq12:20:221
3553663993834,3cyclictest3561071-21kworker/u8:2+events_unbound08:24:210
3553663993834,3cyclictest3490846-21kworker/u8:0+events_unbound08:50:140
3553663993834,3cyclictest3490846-21kworker/u8:0+events_unbound07:29:120
3553668993726,8cyclictest1704890-21systemd-journal08:21:211
3553663993734,2cyclictest3760156-21kworker/u8:0+events_unbound10:35:120
3553663993734,2cyclictest3734853-21kworker/u8:1+events_unbound10:25:290
3553663993733,3cyclictest3719515-21kworker/u8:2+events_unbound10:02:380
3553663993733,3cyclictest3585410-21kworker/u8:3+events_unbound08:32:210
36859362360,8sleep30-21swapper/309:20:153
36859362360,8sleep30-21swapper/309:20:153
3553668993630,4cyclictest3645823-21apt-get08:40:071
3553668993628,6cyclictest3790315-21apt-get11:05:061
3553668993628,5cyclictest3684675-21grep09:15:271
3553663993532,2cyclictest3734853-21kworker/u8:1+flush-8:010:15:120
3553663993531,3cyclictest3849376-21kworker/u8:2+events_unbound12:12:230
3553672993429,4cyclictest3585410-21kworker/u8:3+flush-8:008:30:242
3553672993424,8cyclictest3724892-21awk10:00:002
3553668993429,3cyclictest3825288-21kworker/u8:2+events_unbound11:45:161
3553668993429,3cyclictest3825288-21kworker/u8:2+events_unbound11:45:151
3553668993426,6cyclictest3561071-21kworker/u8:2+flush-8:007:40:121
3553668993425,7cyclictest3694097-21ntpq09:25:211
3553672993323,7cyclictest3654575-21ntpq08:45:242
3553668993326,5cyclictest3561071-21kworker/u8:2+flush-8:009:30:221
3553672993228,2cyclictest3800021-21sh11:15:002
3553668993228,3cyclictest3490846-21kworker/u8:0+events_unbound07:50:161
3553668993223,7cyclictest3749049-21ntpq10:20:191
3553672993127,3cyclictest3804541-21unixbench_multi11:15:272
3553668993124,5cyclictest3490846-21kworker/u8:0+events_unbound07:10:241
3553668993123,6cyclictest3664838-21grep08:55:271
3553668993122,7cyclictest3765389-21kworker/u8:1+flush-8:011:40:191
3553668993121,8cyclictest3838988-21ntpq11:50:201
3553668993120,8cyclictest1704890-21systemd-journal10:55:011
3553668993026,2cyclictest3754842-21unixbench_singl10:25:261
3553668993025,4cyclictest3760156-21kworker/u8:0+events_unbound10:35:261
3553668993025,3cyclictest3719515-21kworker/u8:2+events_unbound09:55:241
3553668993024,4cyclictest3575844-21/usr/sbin/munin07:30:181
3553668993019,8cyclictest3814011-21ntpq11:25:201
3553672992924,4cyclictest3879107-21unixbench_singl12:30:262
3553672992924,4cyclictest3699542-21unixbench_singl09:30:282
3553672992924,4cyclictest3561071-21kworker/u8:2+flush-8:008:20:082
3553672992924,3cyclictest3825012-21apt-key11:40:002
3553668992925,3cyclictest3859740-21systemd-run12:15:001
3553668992925,2cyclictest3672669-21kthreadcore09:05:151
3553668992924,3cyclictest3700559-21kworker/u8:1+flush-8:009:45:061
3553668992923,4cyclictest3561071-21kworker/u8:2+flush-8:009:20:171
3553668992923,4cyclictest3561071-21kworker/u8:2+flush-8:009:20:161
3553672992824,2cyclictest3596161-21aten2_r5power_v07:50:092
3553672992823,4cyclictest3839556-21kworker/u8:3+events_unbound12:05:242
3553672992819,6cyclictest3561071-21kworker/u8:2+flush-8:009:15:212
3553668992825,2cyclictest3772576-21kthreadcore10:45:151
3553668992822,4cyclictest3709441-21wc09:40:271
3553668992819,6cyclictest3824779-21latency_hist11:40:011
35533212283,7sleep20-21swapper/207:07:592
35533212283,7sleep20-21swapper/207:07:582
3553672992723,2cyclictest3621261-21cpuspeed_turbos08:15:092
3553668992723,2cyclictest0-21swapper/107:21:211
3553668992719,6cyclictest3561071-21kworker/u8:2+events_unbound08:50:261
3553668992715,10cyclictest1704890-21systemd-journal11:25:001
3553672992622,2cyclictest3840522-21fschecks_time11:55:122
3553672992622,2cyclictest3694620-21unixbench_singl09:25:282
3553672992620,4cyclictest3700564-21fschecks_time09:35:102
3553672992620,4cyclictest3618252-21kthreadcore08:10:172
3553672992617,7cyclictest3575814-21cp07:30:022
3553668992621,3cyclictest3606294-21cut08:00:101
3553668992619,5cyclictest3760156-21kworker/u8:0+flush-8:010:40:211
3553668992619,5cyclictest3719515-21kworker/u8:2+events_unbound10:10:011
37313162250,2chrt161rcu_preempt10:05:162
3553672992521,3cyclictest3760156-21kworker/u8:0+flush-8:010:45:192
3553672992521,3cyclictest3490846-21kworker/u8:0+flush-8:007:15:042
3553672992521,2cyclictest3755563-21aten2_r5power_p10:30:072
3553672992517,6cyclictest3580156-21unixbench_multi07:30:262
3553672992516,7cyclictest3749606-21unixbench_singl10:20:272
3553672992515,2cyclictest0-21swapper/210:15:002
355334022515,6sleep10-21swapper/107:08:141
355334022515,6sleep10-21swapper/107:08:141
3553672992419,3cyclictest3646040-21cpuspeed_turbos08:40:092
3553672992418,4cyclictest3865160-21cpuspeed_turbos12:20:122
3553668992420,3cyclictest3734853-21kworker/u8:1+events_unbound10:10:241
3553672992318,3cyclictest3709522-21unixbench_singl09:40:262
3553672992317,5cyclictest3635156-21unixbench_multi08:25:282
355367299230,8cyclictest35936282grep07:45:152
3553668992319,2cyclictest0-21swapper/107:50:001
3553668992317,5cyclictest3754865-21kworker/u8:3+flush-8:011:10:221
3553672992219,2cyclictest3760729-21fschecks_count10:35:122
3553672992219,2cyclictest3641043-21cpuspeed_turbos08:35:112
3553672992217,3cyclictest0-21swapper/208:55:162
3553672992216,4cyclictest3715461-21fschecks_count09:50:112
3553672992216,4cyclictest3689089-21needreboot09:20:192
3553672992216,4cyclictest3689089-21needreboot09:20:182
3553668992218,2cyclictest0-21swapper/109:50:071
3553668992218,2cyclictest0-21swapper/109:00:251
3553668992217,2cyclictest0-21swapper/111:30:191
38467732210,3sleep375-21kworker/3:1+events12:00:143
3553672992118,2cyclictest3855237-21cpuspeed_turbos12:10:092
3553672992117,2cyclictest0-21swapper/212:40:002
3553672992117,2cyclictest0-21swapper/211:00:182
3553672992116,3cyclictest371rcuc/212:05:002
3553672992116,3cyclictest0-21swapper/212:20:002
3553672992113,6cyclictest3743117-21kthreadcore10:15:192
3553668992112,7cyclictest3863807-21ntp_states12:15:211
3553672992016,2cyclictest0-21swapper/209:10:132
3553672992015,3cyclictest3754816-21unixbench_singl10:25:262
3553672992015,3cyclictest0-21swapper/211:35:012
3553672992011,7cyclictest0-21swapper/211:40:152
3553672992010,8cyclictest3808230-21tr11:20:162
3553672991915,2cyclictest0-21swapper/208:55:002
3553672991914,3cyclictest0-21swapper/207:40:282
3553672991910,7cyclictest3769517-21grep10:40:262
3553672991910,7cyclictest3726447-21tr10:00:152
3553672991910,7cyclictest3608965-21tr08:00:162
355366399191,13cyclictest3553665-21latency_hist07:10:010
355366399191,13cyclictest3553665-21latency_hist07:10:010
37201332181,10sleep30-21swapper/309:55:063
355367299189,6cyclictest3673870-21tr09:05:172
355367299188,8cyclictest3813155-21tr11:25:172
3553672991813,3cyclictest0-21swapper/211:05:092
3553672991810,6cyclictest0-21swapper/207:35:132
355367299179,6cyclictest3783750-21tr10:55:162
3553672991713,3cyclictest3665614-21aten2_r5power_p09:00:082
3553672991713,2cyclictest0-21swapper/207:10:112
3553672991712,3cyclictest0-21swapper/211:50:152
3553672991712,3cyclictest0-21swapper/211:45:142
3553672991712,3cyclictest0-21swapper/211:45:132
3553672991710,5cyclictest0-21swapper/209:45:152
3553672991710,5cyclictest0-21swapper/207:55:152
35488212172,8sleep30-21swapper/307:05:023
35488212172,8sleep30-21swapper/307:05:023
38191762160,2sleep3471rcuc/311:30:253
355367299168,6cyclictest3568439-21cut07:20:172
3553672991613,2cyclictest0-21swapper/210:50:072
38797472152,8sleep30-21swapper/312:35:073
38546132158,4sleep30-21swapper/312:08:183
38746062132,6sleep30-21swapper/312:30:023
38203492132,7sleep30-21swapper/311:35:113
37998862137,4sleep30-21swapper/311:13:293
37039812131,8sleep30-21swapper/309:35:213
36208092132,6sleep30-21swapper/308:15:023
36010082132,7sleep30-21swapper/307:55:073
35958082132,6sleep30-21swapper/307:50:013
35665832132,7sleep30-21swapper/307:20:153
38701552122,6sleep30-21swapper/312:25:133
38653092122,6sleep30-21swapper/312:20:143
38593352122,6sleep30-21swapper/312:10:283
38352282122,6sleep30-21swapper/311:50:093
38295892122,6sleep30-21swapper/311:40:253
38118722122,6sleep30-21swapper/311:25:173
37902002122,6sleep30-21swapper/311:05:013
37862532122,6sleep30-21swapper/311:00:173
37812742122,6sleep30-21swapper/310:55:153
37775822123,6sleep30-21swapper/310:50:163
37651852122,6sleep30-21swapper/310:40:023
37643012122,6sleep30-21swapper/310:35:243
37595562122,6sleep30-21swapper/310:30:263
37522542122,6sleep30-21swapper/310:25:173
37461552122,6sleep30-21swapper/310:20:153
37398272122,5sleep30-21swapper/310:15:013
37389682122,6sleep30-21swapper/310:10:243
37300422122,6sleep30-21swapper/310:05:023
37273822122,6sleep30-21swapper/310:00:163
37056972121,7sleep30-21swapper/309:40:133
36985232123,5sleep30-21swapper/309:30:193
36842492122,6sleep30-21swapper/309:15:213
36792342122,6sleep30-21swapper/309:10:203
36741262122,6sleep30-21swapper/309:05:193
36611242122,6sleep30-21swapper/308:55:143
36595212122,6sleep30-21swapper/308:50:263
36514772122,6sleep30-21swapper/308:45:163
36457952122,6sleep30-21swapper/308:40:053
36264412122,6sleep30-21swapper/308:20:123
36207192122,6sleep30-21swapper/308:14:213
36111572122,6sleep30-21swapper/308:05:113
36105172122,6sleep30-21swapper/308:03:223
35767562122,6sleep30-21swapper/307:30:153
35538172122,7sleep30-21swapper/307:10:093
38604602112,6sleep30-21swapper/312:15:133
38406552112,5sleep30-21swapper/311:55:153
38341212112,5sleep30-21swapper/311:45:233
38341212112,5sleep30-21swapper/311:45:223
38088942112,5sleep30-21swapper/311:20:183
38002802112,5sleep30-21swapper/311:15:093
37703992112,6sleep30-21swapper/310:45:073
37156192112,5sleep30-21swapper/309:50:143
36907212112,5sleep30-21swapper/309:25:123
36701202112,6sleep30-21swapper/309:03:453
36408002112,6sleep30-21swapper/308:35:093
36364472112,5sleep30-21swapper/308:30:153
36351432112,5sleep30-21swapper/308:25:293
35914632112,5sleep30-21swapper/307:45:123
35859312111,6sleep30-21swapper/307:40:033
35808522112,5sleep30-21swapper/307:35:083
35750252112,6sleep30-21swapper/307:25:343
35587942111,6sleep30-21swapper/307:15:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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