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2025-12-13 - 18:44

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 Sat Dec 13, 2025 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
387392322170,3sleep3575-21kworker/3:2-events10:19:093
370525621100,6sleep3451irq_work/307:29:113
38218932640,2chrt3821897-21irqrtprio09:29:070
38496862580,4chrt575-21kworker/3:2-events09:54:103
37014932530,4chrt481ktimers/307:24:173
3685139995246,5cyclictest3974516-21kworker/u8:3+events_unbound12:09:181
3685139995246,4cyclictest3654113-21kworker/u8:3+events_unbound08:39:041
3685139995042,6cyclictest3654113-21kworker/u8:3+events_unbound07:14:131
3685139994944,4cyclictest3684949-21kworker/u8:1+events_unbound07:50:001
3685139994844,3cyclictest3854878-21kworker/u8:3+flush-8:010:04:121
3685139994842,4cyclictest3928176-21kworker/u8:2+events_unbound11:44:161
3685131994838,7cyclictest3984131-21latency_hist12:10:000
3685131994740,5cyclictest3820828-21kworker/u8:1+flush-8:011:04:140
3685131994740,5cyclictest278-21systemd-journal12:19:010
37274502460,2sleep2371rcuc/207:54:052
3685139994640,4cyclictest3865404-21kworker/u8:0+events_unbound11:19:171
3685139994541,3cyclictest3954484-21kworker/u8:3+flush-8:011:49:171
3685139994540,3cyclictest3820828-21kworker/u8:1+events_unbound10:29:031
3685131994534,8cyclictest278-21systemd-journal10:55:010
38469802440,5chrt0-21swapper/009:54:070
3685139994438,4cyclictest3707082-21kworker/u8:0+flush-8:009:59:071
3685139994438,4cyclictest3707082-21kworker/u8:0+flush-8:009:49:051
3685139994435,7cyclictest3939770-21latency_hist11:25:011
3685139994338,3cyclictest3974516-21kworker/u8:3+flush-8:012:29:051
3685139994336,5cyclictest3820828-21kworker/u8:1+events_unbound10:14:111
3685139994336,5cyclictest3684949-21kworker/u8:1+events_unbound07:39:141
3685139994236,5cyclictest3654113-21kworker/u8:3+events_unbound08:49:041
3685131994236,4cyclictest3707082-21kworker/u8:0+flush-8:009:59:100
3685139994135,5cyclictest3914792-21kworker/u8:3+events_unbound11:29:171
3685139994132,7cyclictest3820562-21latency_hist09:25:011
3685131994135,4cyclictest3707082-21kworker/u8:0+flush-8:009:24:190
3685131994132,6cyclictest278-21systemd-journal08:35:000
3685131994035,4cyclictest3928176-21kworker/u8:2+events_unbound12:14:160
3685131994035,4cyclictest3928176-21kworker/u8:2+events_unbound12:14:160
3685131994034,4cyclictest3741340-21kworker/u8:1+flush-8:008:19:180
3685143993930,7cyclictest3975765-21sed12:04:072
3685139993934,4cyclictest3707082-21kworker/u8:0+flush-8:009:54:041
3685139993933,5cyclictest3974516-21kworker/u8:3+events_unbound12:34:121
3685139993933,5cyclictest3707082-21kworker/u8:0+events_unbound08:34:031
3685139993933,4cyclictest3928176-21kworker/u8:2+events_unbound11:15:001
3685139993933,4cyclictest3820828-21kworker/u8:1+events_unbound10:49:161
3685139993933,4cyclictest3741340-21kworker/u8:1+events_unbound09:04:061
3685139993932,5cyclictest3741340-21kworker/u8:1+events_unbound08:29:031
3685131993934,3cyclictest3820828-21kworker/u8:1+events_unbound10:09:030
3685131993934,3cyclictest3820828-21kworker/u8:1+events_unbound10:09:030
3685139993832,5cyclictest3870793-21kworker/u8:2+events_unbound10:39:131
3685139993832,5cyclictest3707082-21kworker/u8:0+events_unbound07:44:031
3685139993831,5cyclictest3741340-21kworker/u8:1+events_unbound08:24:111
3685139993831,5cyclictest3707082-21kworker/u8:0+events_unbound08:04:121
3685139993830,6cyclictest3654113-21kworker/u8:3+events_unbound08:54:181
3685139993829,6cyclictest3711773-21latency_hist07:35:011
3685139993829,5cyclictest3810437-21kworker/u8:3+events_unbound09:39:051
3685139993828,8cyclictest3824872-21ntpq09:29:141
3685131993832,4cyclictest3954484-21kworker/u8:3+flush-8:011:44:040
3685131993832,4cyclictest3854878-21kworker/u8:3+flush-8:010:14:240
3685139993732,4cyclictest3934789-21kworker/u8:1+flush-8:011:59:181
3685139993731,4cyclictest3989038-21kworker/u8:1+flush-8:012:39:081
3685131993731,4cyclictest3954484-21kworker/u8:3+events_unbound11:49:020
3685131993731,4cyclictest3934789-21kworker/u8:1+flush-8:011:59:040
3685131993728,3cyclictest3654113-21kworker/u8:3+events_unbound07:18:010
36802312373,9sleep10-21swapper/107:05:271
3685139993632,3cyclictest3791178-21kworker/u8:2+events_unbound09:10:011
3685139993631,4cyclictest3928176-21kworker/u8:2+events_unbound11:34:031
3685139993631,4cyclictest3654113-21kworker/u8:3+flush-8:007:59:121
3685139993631,3cyclictest3820828-21kworker/u8:1+events_unbound11:04:101
3685139993630,5cyclictest3974516-21kworker/u8:3+events_unbound12:03:591
3685139993630,5cyclictest3810437-21kworker/u8:3+flush-8:009:34:141
3685139993630,4cyclictest3726771-21kworker/u8:2+flush-8:007:54:141
3685139993629,5cyclictest3820828-21kworker/u8:1+events_unbound10:24:131
3685131993630,4cyclictest3820828-21kworker/u8:1+flush-8:010:44:100
3685131993626,8cyclictest278-21systemd-journal07:55:000
3685131993626,7cyclictest3875477-21latency_hist10:20:010
3685139993531,3cyclictest3928176-21kworker/u8:2+events_unbound12:24:121
3685139993530,4cyclictest3914792-21kworker/u8:3+events_unbound11:09:171
3685139993530,4cyclictest3914792-21kworker/u8:3+events_unbound11:09:171
3685139993530,4cyclictest3854878-21kworker/u8:3+flush-8:010:09:201
3685139993530,4cyclictest3854878-21kworker/u8:3+flush-8:010:09:201
3685139993530,4cyclictest2217273-21kworker/u8:0+events_unbound07:19:091
3685139993528,5cyclictest3654113-21kworker/u8:3+flush-8:007:24:151
3685131993530,4cyclictest3820828-21kworker/u8:1+flush-8:010:29:140
3685131993527,6cyclictest3684949-21kworker/u8:1+events_unbound07:39:030
3685131993523,10cyclictest3702717-21diskstats07:29:040
3685139993430,3cyclictest3791178-21kworker/u8:2+flush-8:008:59:181
3685139993429,4cyclictest3974516-21kworker/u8:3+flush-8:012:14:071
3685139993429,4cyclictest3974516-21kworker/u8:3+flush-8:012:14:071
3685139993429,3cyclictest3954545-21sh11:40:001
3685139993422,9cyclictest3810026-21ntpq09:14:261
3685131993430,3cyclictest3741345-21systemd-run08:05:010
39622062330,4sleep3481ktimers/311:49:083
3685139993329,2cyclictest3911200-21irqrtprio10:59:051
3685139993328,4cyclictest3654113-21kworker/u8:3+events_unbound08:44:241
3685139993327,4cyclictest3989579-21apt-get12:18:581
3685131993328,4cyclictest3810437-21kworker/u8:3+events_unbound09:34:120
3685131993327,4cyclictest3865404-21kworker/u8:0+flush-8:011:19:040
3685139993227,4cyclictest3865404-21kworker/u8:0+flush-8:010:54:081
3685139993227,4cyclictest3820828-21kworker/u8:1+events_unbound10:44:071
3685139993226,5cyclictest3865404-21kworker/u8:0+events_unbound10:19:191
3685131993228,3cyclictest3707082-21kworker/u8:0+events_unbound09:15:380
3685131993227,4cyclictest3820828-21kworker/u8:1+flush-8:010:49:090
3685131993226,4cyclictest3949639-21idleruntime-cro11:35:010
3685131993226,4cyclictest3741340-21kworker/u8:1+flush-8:008:29:060
3685131993224,6cyclictest3786829-21cut08:54:040
3685131993223,7cyclictest3721657-21latency_hist07:45:010
3685139993127,3cyclictest3707082-21kworker/u8:0+flush-8:009:15:021
3685139993124,5cyclictest3741340-21kworker/u8:1+events_unbound08:09:011
3685139993123,6cyclictest3820828-21kworker/u8:1+flush-8:009:44:361
3685131993123,4cyclictest0-21swapper/007:24:000
3685143993024,4cyclictest3781304-21base6408:45:022
3685131993026,3cyclictest3928176-21kworker/u8:2+flush-8:011:39:200
3685131993025,3cyclictest3870793-21kworker/u8:2+flush-8:010:39:100
3685131993024,5cyclictest3820828-21kworker/u8:1+flush-8:010:59:170
3685131993023,5cyclictest3725851-21needreboot07:49:110
3685143992923,4cyclictest3934717-21unixbench_singl11:19:192
3685139992926,2cyclictest3685125-21cyclictest08:20:001
3685131992924,3cyclictest3989038-21kworker/u8:1+events_unbound12:25:020
3685131992924,3cyclictest3969250-21unixbench_singl11:54:190
3685143992825,2cyclictest3919917-21unixbench_singl11:04:182
3685139992822,5cyclictest3654113-21kworker/u8:3+events_unbound07:29:151
3685131992823,4cyclictest3865404-21kworker/u8:0+flush-8:011:14:140
3685131992822,4cyclictest3810437-21kworker/u8:3+events_unbound09:39:140
368513199281,13cyclictest3736431-21kworker/0:2+events08:24:050
368513199280,7cyclictest3860366-21users10:04:260
36804692282,3sleep00-21swapper/007:08:300
3685143992724,2cyclictest3846457-21fschecks_count09:54:042
3685143992723,2cyclictest3826273-21cpuspeed_turbos09:34:022
3685139992722,4cyclictest3707082-21kworker/u8:0+events_unbound08:14:031
3685131992723,3cyclictest3707082-21kworker/u8:0+events_unbound08:14:170
3685131992722,3cyclictest3781937-21cpuspeed_turbos08:49:030
3685131992721,5cyclictest3654113-21kworker/u8:3+flush-8:008:44:300
3685131992721,4cyclictest3939877-21latency_hist11:25:010
3685131992721,4cyclictest3924848-21unixbench_singl11:09:200
3685131992721,4cyclictest3924848-21unixbench_singl11:09:190
368513199271,17cyclictest4008885-21sshd12:35:010
3685143992622,3cyclictest3707082-21kworker/u8:0+flush-8:009:19:182
3685139992620,5cyclictest3870793-21kworker/u8:2+events_unbound10:34:151
3685131992622,3cyclictest3989038-21kworker/u8:1+events_unbound12:39:170
3685131992621,4cyclictest3741340-21kworker/u8:1+flush-8:008:09:070
3685131992621,3cyclictest3889570-21needreboot10:34:120
368513199261,22cyclictest278-21systemd-journal09:10:010
3685143992522,2cyclictest3689936-21unixbench_multi07:14:142
3685143992521,2cyclictest3900876-21cpuspeed_turbos10:49:022
3685143992518,5cyclictest3845370-21apt-get09:50:002
3685139992521,3cyclictest3964643-21kworker/u8:0+flush-8:011:54:041
3685143992420,3cyclictest0-21swapper/208:20:002
3685143992420,2cyclictest3935759-21fschecks_time11:24:052
3685143992419,3cyclictest3716526-21unixbench_multi07:39:202
368514399240,11cyclictest38045682grep09:09:092
3685131992420,3cyclictest3707082-21kworker/u8:0+events_unbound09:15:010
3685131992419,3cyclictest3775824-21unixbench_multi08:39:210
3685131992419,3cyclictest0-21swapper/011:30:000
3685131992419,3cyclictest0-21swapper/009:50:000
3685131992418,4cyclictest0-21swapper/007:14:140
3685143992320,2cyclictest3983999-21unixbench_multi12:09:192
3685143992320,1cyclictest0-21swapper/211:35:002
3685143992319,3cyclictest3989007-21cron12:15:002
3685143992319,3cyclictest3989007-21cron12:15:002
3685143992319,3cyclictest3707082-21kworker/u8:0+events_unbound09:29:182
3685143992319,2cyclictest3741202-21grep08:04:182
3685143992317,4cyclictest3866246-21aten2_r5power_p10:14:012
3685143992315,6cyclictest3732959-21kthreadcore07:59:052
3685131992319,2cyclictest904-21mta-sts-daemon07:34:070
3685131992318,3cyclictest4003667-21unixbench_multi12:29:200
3685131992317,4cyclictest3837745-21kthreadcore09:44:290
37327492220,3sleep03685125-21cyclictest07:59:040
3685143992219,2cyclictest4009333-21aten2_r5power_e12:39:012
3685143992219,2cyclictest3791726-21cpuspeed_turbos08:59:032
3685143992218,3cyclictest3750981-21unixbench_multi08:14:182
3685143992217,3cyclictest3711656-21unixbench_singl07:34:202
3685143992217,3cyclictest0-21swapper/209:35:032
3685143992213,7cyclictest3695806-21tr07:19:062
3685143992213,6cyclictest278-21systemd-journal10:00:002
3685131992218,3cyclictest3820828-21kworker/u8:1+events_unbound10:24:030
3685131992217,4cyclictest3976993-21kthreadcore12:04:080
3685131992214,5cyclictest3795742-21grep08:59:190
3685143992116,4cyclictest3820828-21kworker/u8:1+events_unbound10:45:012
3685143992115,4cyclictest3945754-21kworker/u8:0+flush-8:011:35:052
3685143992113,6cyclictest3697821-21fschecks_time07:24:042
3685131992113,6cyclictest3741340-21kworker/u8:1+events_unbound09:04:000
36803202218,7sleep30-21swapper/307:06:363
3685143992016,2cyclictest0-21swapper/212:19:592
3685143992016,2cyclictest0-21swapper/211:14:102
3685143991915,3cyclictest3998892-21turbostat.cron12:25:002
3685143991915,3cyclictest3871159-21aten2_r5power_e10:19:022
3685143991915,2cyclictest3770730-21unixbench_singl08:34:192
3685143991915,2cyclictest0-21swapper/207:43:092
3685143991914,3cyclictest3964245-21unixbench_multi11:49:182
3685143991914,3cyclictest0-21swapper/210:39:042
3685143991911,7cyclictest3940637-21fschecks_time11:29:042
3685143991911,6cyclictest3860996-21sshd10:09:012
3685143991911,6cyclictest3860996-21sshd10:09:012
3685143991911,6cyclictest3761865-21fschecks_count08:29:052
3685143991910,7cyclictest4003795-21cron12:30:012
3685143991815,2cyclictest3756861-21cpuspeed_turbos08:24:012
3685143991814,2cyclictest0-21swapper/208:55:002
368514399181,3cyclictest40053791kthreadcore12:34:072
3685143991813,3cyclictest0-21swapper/211:00:022
3685143991810,6cyclictest3965241-21fschecks_count11:54:042
3685143991810,6cyclictest3775947-21cron08:40:002
36802572184,10sleep20-21swapper/207:05:472
368514399179,6cyclictest3888995-21cut10:34:112
368514399179,6cyclictest3836508-21cut09:44:252
3685143991714,2cyclictest3920803-21cpuspeed_turbos11:09:022
3685143991714,2cyclictest3920803-21cpuspeed_turbos11:09:022
3685143991714,2cyclictest3806523-21cpuspeed_turbos09:14:162
3685143991713,2cyclictest0-21swapper/210:05:002
3685143991710,6cyclictest3970133-21cpuspeed_turbos11:59:032
368514399168,6cyclictest3782022-21fschecks_time08:49:052
368514399167,6cyclictest3721877-21sshd07:45:012
368514399162,13cyclictest0-21swapper/210:51:072
368514399162,13cyclictest0-21swapper/209:20:302
368514399161,3cyclictest37978732cut09:04:082
3685143991613,2cyclictest0-21swapper/211:43:332
3685143991613,2cyclictest0-21swapper/210:29:042
3685143991613,2cyclictest0-21swapper/208:06:002
3685143991611,4cyclictest3876279-21cpuspeed_turbos10:24:032
3685143991510,4cyclictest3702469-21sshd07:29:022
40032642132,7sleep30-21swapper/312:29:173
39890462132,6sleep30-21swapper/312:15:013
39438472132,7sleep30-21swapper/311:29:113
38304172130,7sleep30-21swapper/309:35:023
37909662132,6sleep30-21swapper/308:55:013
37659262132,6sleep30-21swapper/308:30:013
37216382132,7sleep30-21swapper/307:45:013
40081672122,6sleep30-21swapper/312:34:153
39835522122,6sleep30-21swapper/312:09:153
39701552122,6sleep30-21swapper/311:59:043
39495372122,6sleep30-21swapper/311:34:213
39352282122,6sleep30-21swapper/311:22:013
39291132122,6sleep30-21swapper/311:14:113
39153372122,6sleep30-21swapper/311:00:193
39099402121,6sleep30-21swapper/310:55:013
39064552122,6sleep30-21swapper/310:54:093
39012452123,6sleep30-21swapper/310:49:073
38858622122,6sleep30-21swapper/310:34:033
38424432122,6sleep30-21swapper/309:49:093
38315092122,6sleep30-21swapper/309:39:063
38216142122,6sleep30-21swapper/309:29:073
38052752122,6sleep30-21swapper/309:09:173
37908702122,6sleep30-21swapper/308:54:213
37813972122,6sleep30-21swapper/308:45:223
37764602122,6sleep30-21swapper/308:43:213
37652452123,6sleep30-21swapper/308:29:133
37511302122,6sleep30-21swapper/308:15:023
37266352122,6sleep30-21swapper/307:50:013
37117572122,6sleep30-21swapper/307:35:013
37116452122,6sleep30-21swapper/307:34:213
40090272112,5sleep30-21swapper/312:36:073
39943402112,6sleep30-21swapper/312:21:313
39846872111,6sleep30-21swapper/312:14:013
39846872111,6sleep30-21swapper/312:14:013
39745642112,5sleep30-21swapper/312:00:453
39654392112,5sleep30-21swapper/311:54:083
39550272113,5sleep30-21swapper/311:43:033
39505772112,5sleep30-21swapper/311:39:063
39348152113,5sleep30-21swapper/311:19:563
39205862112,5sleep30-21swapper/311:09:013
39205862112,5sleep30-21swapper/311:09:013
38956102113,5sleep30-21swapper/310:42:173
38905682113,5sleep30-21swapper/310:36:073
38809372112,6sleep30-21swapper/310:29:013
38758142113,5sleep30-21swapper/310:21:153
38661102112,6sleep30-21swapper/310:13:453
38610002112,6sleep30-21swapper/310:09:033
38610002112,6sleep30-21swapper/310:09:033
38559512110,7sleep30-21swapper/310:03:013
38511322112,5sleep30-21swapper/309:59:043
38359012112,5sleep30-21swapper/309:41:233
38158882112,6sleep30-21swapper/309:20:533
38108782112,6sleep30-21swapper/309:15:113
38063072111,6sleep30-21swapper/309:14:153
37966832112,5sleep30-21swapper/309:04:043
37713272112,5sleep30-21swapper/308:35:273
37563262112,6sleep30-21swapper/308:20:183
37517112112,5sleep30-21swapper/308:19:023
37418512112,5sleep30-21swapper/308:08:593
37366572112,5sleep30-21swapper/308:00:203
37363752111,5sleep30-21swapper/308:00:013
37220652112,5sleep30-21swapper/307:47:293
36922432112,5sleep30-21swapper/307:15:073
36861792112,5sleep30-21swapper/307:14:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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