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2026-07-06 - 19:00

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 Mon Jul 06, 2026 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
387970123520,4sleep3481ktimers/307:50:153
3836510997368,4cyclictest4047870-21kworker/u8:0+events_unbound11:00:261
3836510996459,4cyclictest4002574-21kworker/u8:2+events_unbound10:00:261
3836510996459,3cyclictest3897816-21kworker/u8:2+flush-8:008:20:251
3836506996353,8cyclictest2473324-21kworker/u8:0+flush-8:007:10:270
3836510996055,3cyclictest4047870-21kworker/u8:0+flush-8:011:10:231
3836510995953,4cyclictest2473324-21kworker/u8:0+flush-8:007:15:021
3836510995752,3cyclictest3878154-21kworker/u8:1+events_unbound09:10:251
3836510995751,4cyclictest4047870-21kworker/u8:0+flush-8:011:30:211
3836510995751,4cyclictest4047870-21kworker/u8:0+flush-8:011:30:201
3836510995551,3cyclictest3952957-21kworker/u8:3+events_unbound09:50:251
3836510995551,3cyclictest3897816-21kworker/u8:2+events_unbound08:45:221
3836510995550,3cyclictest3942787-21kworker/u8:0+events_unbound09:25:251
3836510995549,5cyclictest3942787-21kworker/u8:0+flush-8:010:25:261
3836510995549,4cyclictest3863426-21kworker/u8:2+flush-8:007:40:211
3836510995449,4cyclictest3897816-21kworker/u8:2+flush-8:008:35:201
3836510995448,4cyclictest4047870-21kworker/u8:0+events_unbound11:05:241
3836510995447,6cyclictest2473324-21kworker/u8:0+events_unbound07:10:211
3836510995348,4cyclictest3897816-21kworker/u8:2+events_unbound09:00:231
3836510995348,3cyclictest3942787-21kworker/u8:0+flush-8:009:15:261
3836510995346,5cyclictest4041975-21kworker/u8:1+flush-8:010:35:111
3836510995247,3cyclictest4041975-21kworker/u8:1+events_unbound11:15:151
3836510995246,4cyclictest3952957-21kworker/u8:3+flush-8:010:40:221
3836510995245,5cyclictest4116812-21kworker/u8:3+events_unbound11:50:231
3836510995147,3cyclictest4047870-21kworker/u8:0+events_unbound11:25:101
3836510995147,3cyclictest4047870-21kworker/u8:0+events_unbound11:25:091
3836510995147,3cyclictest4041975-21kworker/u8:1+events_unbound10:55:241
3836510995146,3cyclictest3804469-21kworker/u8:3+flush-8:007:45:201
3836510995145,4cyclictest3967838-21kworker/u8:1+events_unbound09:20:211
3836510995144,5cyclictest4047870-21kworker/u8:0+events_unbound12:20:241
3836506995143,5cyclictest1704890-21systemd-journal10:30:000
3836515995043,5cyclictest4082217-21gpgv11:15:002
3836510995046,3cyclictest3878154-21kworker/u8:1+events_unbound08:40:271
3836510995045,4cyclictest3942787-21kworker/u8:0+flush-8:009:40:231
3836510995044,5cyclictest4092513-21kworker/u8:2+flush-8:011:45:221
3836510995044,5cyclictest3952957-21kworker/u8:3+flush-8:011:20:181
3836510995044,4cyclictest4146290-21kworker/u8:3+events_unbound12:15:241
3836510995044,4cyclictest3952957-21kworker/u8:3+flush-8:009:55:201
3836510995042,6cyclictest4056333-21ntpq10:45:181
3836510995041,7cyclictest3907167-21ntpq08:15:191
3836506995040,7cyclictest1704890-21systemd-journal09:20:230
3836510994944,4cyclictest3804469-21kworker/u8:3+flush-8:007:25:211
3836510994943,4cyclictest4146290-21kworker/u8:3+events_unbound12:35:301
3836515994841,5cyclictest1704890-21systemd-journal12:00:012
3836510994843,4cyclictest3878154-21kworker/u8:1+flush-8:007:50:211
3836510994841,5cyclictest3952957-21kworker/u8:3+flush-8:010:20:211
3836510994839,7cyclictest3942787-21kworker/u8:0+events_unbound10:30:221
3836506994843,3cyclictest4092513-21kworker/u8:2+flush-8:011:35:110
3836510994743,3cyclictest3942787-21kworker/u8:0+events_unbound10:05:121
3836510994742,3cyclictest3952957-21kworker/u8:3+events_unbound10:50:251
3836510994741,5cyclictest3897816-21kworker/u8:2+flush-8:008:10:221
3836510994741,4cyclictest3967838-21kworker/u8:1+events_unbound09:30:181
3836510994640,4cyclictest4041975-21kworker/u8:1+events_unbound11:55:171
3836510994640,3cyclictest3897816-21kworker/u8:2+events_unbound08:55:121
3836510994640,3cyclictest3897816-21kworker/u8:2+events_unbound08:55:121
3836510994539,5cyclictest2473324-21kworker/u8:0+events_unbound08:05:181
3836506994538,5cyclictest3868404-21/usr/sbin/munin07:40:190
3836510994439,3cyclictest4041975-21kworker/u8:1+events_unbound12:05:221
3836510994437,5cyclictest3804469-21kworker/u8:3+flush-8:007:35:181
3836510994337,4cyclictest3967838-21kworker/u8:1+events_unbound09:35:231
3836506994336,5cyclictest4092513-21kworker/u8:2+flush-8:011:40:160
3836510994237,4cyclictest3942787-21kworker/u8:0+events_unbound10:10:091
3836506994236,4cyclictest4146290-21kworker/u8:3+events_unbound12:25:250
3836506994235,5cyclictest3997641-21apt-get09:50:060
3836510994138,2cyclictest3897816-21kworker/u8:2+events_unbound08:25:281
3836510994137,3cyclictest2473324-21kworker/u8:0+flush-8:007:55:281
3836510994135,4cyclictest3897816-21kworker/u8:2+events_unbound08:50:231
3836510994135,4cyclictest3897816-21kworker/u8:2+events_unbound08:50:231
3836510994130,8cyclictest1704890-21systemd-journal12:35:001
3836506994136,4cyclictest4041975-21kworker/u8:1+events_unbound10:40:190
3836510994035,4cyclictest2473324-21kworker/u8:0+flush-8:008:00:211
3836510994034,4cyclictest4126703-21kworker/u8:2+events_unbound12:00:231
3836506994035,3cyclictest3804469-21kworker/u8:3+flush-8:007:45:240
3836506994033,5cyclictest3857270-21ntpq07:25:170
3836506993930,6cyclictest4117172-21latency_hist11:50:020
3836510993832,4cyclictest4126703-21kworker/u8:2+events_unbound12:10:161
3836506993832,4cyclictest4037633-21apt-get10:30:090
3836510993733,3cyclictest4092513-21kworker/u8:2+flush-8:011:35:261
3836510993732,3cyclictest3836380-21kworker/u8:1+flush-8:007:20:191
3836506993733,3cyclictest3804469-21kworker/u8:3+events_unbound07:35:200
3836506993732,4cyclictest3952957-21kworker/u8:3+flush-8:011:05:370
3836506993731,4cyclictest4072169-21latency_hist11:05:010
3836506993728,7cyclictest2473324-21kworker/u8:0+events_unbound08:05:220
3836515993629,4cyclictest3993030-21kworker/u8:2+events_unbound09:45:302
3836506993630,5cyclictest2473324-21kworker/u8:0+flush-8:008:30:210
3836506993627,7cyclictest1704890-21systemd-journal10:00:010
3836510993530,3cyclictest4047870-21kworker/u8:0+flush-8:012:25:161
3836506993531,3cyclictest4047870-21kworker/u8:0+flush-8:011:25:260
3836506993531,3cyclictest4047870-21kworker/u8:0+flush-8:011:25:250
3836506993531,3cyclictest3878154-21kworker/u8:1+flush-8:008:45:170
40288522340,3sleep375-21kworker/3:1-events10:20:143
3836506993429,4cyclictest4041975-21kworker/u8:1+flush-8:012:03:430
3836506993429,4cyclictest3878154-21kworker/u8:1+events_unbound08:40:210
3836506993427,5cyclictest1704890-21systemd-journal11:20:430
3836506993329,2cyclictest1-21systemd10:55:000
3836506993323,7cyclictest3918026-21latency_hist08:30:010
3836515993222,8cyclictest1704890-21systemd-journal11:51:132
3836510993228,3cyclictest2473324-21kworker/u8:0+flush-8:008:30:171
3836510993226,2cyclictest3956698-21needreboot09:05:191
3836510993224,6cyclictest3996437-21ntpq09:45:191
3836506993228,3cyclictest4002574-21kworker/u8:2+flush-8:010:10:260
3836506993228,3cyclictest3942787-21kworker/u8:0+flush-8:009:35:370
3836506993227,4cyclictest3804469-21kworker/u8:3+flush-8:007:20:270
3836506993226,4cyclictest4002574-21kworker/u8:2+events_unbound10:05:240
383620623221,6sleep30-21swapper/307:08:323
3836515993125,4cyclictest4116716-21unixbench_multi11:45:262
3836515993124,5cyclictest1704890-21systemd-journal11:20:002
3836510993123,6cyclictest3804469-21kworker/u8:3+flush-8:007:30:101
3836506993127,3cyclictest3897816-21kworker/u8:2+events_unbound08:55:200
3836506993127,3cyclictest3897816-21kworker/u8:2+events_unbound08:55:190
3836506993127,3cyclictest3836380-21kworker/u8:1+events_unbound07:30:290
3836506993126,4cyclictest4041975-21kworker/u8:1+events_unbound11:19:590
3836506993126,3cyclictest3878154-21kworker/u8:1+flush-8:007:50:280
3836515993021,7cyclictest1704890-21systemd-journal09:45:002
3836510993025,3cyclictest4108201-21irqrtprio11:40:111
3836510993025,3cyclictest4002574-21kworker/u8:2+flush-8:010:15:161
3836506993027,2cyclictest3942787-21kworker/u8:0+flush-8:009:00:150
3836506993026,3cyclictest4126703-21kworker/u8:2+flush-8:012:08:430
3836506993025,3cyclictest3897816-21kworker/u8:2+flush-8:008:50:280
3836506993025,3cyclictest3897816-21kworker/u8:2+flush-8:008:50:270
3836506993024,4cyclictest3897816-21kworker/u8:2+flush-8:008:10:120
3836506993022,6cyclictest3957691-21latency_hist09:10:020
3836515992925,2cyclictest3836691-21aten2_r5power_c07:10:102
3836506992924,4cyclictest4146290-21kworker/u8:3+flush-8:012:35:320
3836506992924,4cyclictest4047870-21kworker/u8:0+events_unbound11:10:200
3836506992923,5cyclictest3952957-21kworker/u8:3+events_unbound10:20:170
3836515992823,3cyclictest3913556-21cpuspeed_turbos08:25:112
3836515992822,4cyclictest3932448-21unixbench_multi08:40:262
3836515992821,5cyclictest3878154-21kworker/u8:1+flush-8:007:50:122
3836506992824,3cyclictest4141223-21needreboot12:10:190
3836506992823,3cyclictest4047870-21kworker/u8:0+flush-8:012:20:260
3836515992724,2cyclictest4132313-21latency_hist12:05:002
3836515992724,2cyclictest4011868-21unixbench_multi10:00:282
3836515992723,2cyclictest4002868-21fschecks_count09:55:102
3836515992723,2cyclictest3902734-21unixbench_singl08:10:282
3836515992723,2cyclictest0-21swapper/209:10:002
3836515992722,3cyclictest3937352-21unixbench_multi08:45:272
3836515992719,6cyclictest1704890-21systemd-journal10:55:002
3836506992723,3cyclictest3977591-21ls09:30:010
3836506992723,2cyclictest3843811-21cpuspeed_turbos07:15:250
3836506992722,4cyclictest3967838-21kworker/u8:1+flush-8:009:42:440
3836506992722,4cyclictest3897816-21kworker/u8:2+events_unbound08:35:190
3836506992722,3cyclictest401-21dbus-daemon10:20:010
3836506992720,5cyclictest3897816-21kworker/u8:2+flush-8:008:15:200
3836506992720,5cyclictest3878154-21kworker/u8:1+flush-8:008:00:130
3836506992719,6cyclictest4162047-21latency_hist12:35:000
3836506992719,6cyclictest4057265-21cron10:50:000
3836515992621,3cyclictest4037866-21tr10:30:112
3836506992622,2cyclictest3967633-21systemd-run09:20:000
3836506992622,2cyclictest0-21swapper/008:25:000
3836506992620,4cyclictest4041975-21kworker/u8:1+flush-8:012:15:210
3836515992521,3cyclictest4041975-21kworker/u8:1+events_unbound11:20:182
3836515992516,7cyclictest1704890-21systemd-journal12:39:592
3836506992520,3cyclictest4062823-21tune2fs10:55:110
38363232253,16sleep03836373-21/usr/sbin/munin07:10:010
3836506992420,2cyclictest0-21swapper/008:00:000
41526012230,2sleep2161rcu_preempt12:25:102
3836515992319,2cyclictest3873475-21aten2_r5power_p07:45:092
3836515992311,4cyclictest0-21swapper/208:15:092
3836506992313,8cyclictest4012336-21apt-get10:05:010
38317212234,12sleep10-21swapper/107:05:081
3836515992219,2cyclictest3888914-21fschecks_time08:00:142
3836515992218,3cyclictest3912619-21unixbench_multi08:20:282
3836515992218,2cyclictest0-21swapper/208:10:002
3836506992218,3cyclictest4047870-21kworker/u8:0+flush-8:011:30:260
3836506992218,3cyclictest4047870-21kworker/u8:0+flush-8:011:30:260
3836506992218,3cyclictest4041975-21kworker/u8:1+events_unbound10:35:300
3836506992218,3cyclictest3878154-21kworker/u8:1+flush-8:009:10:220
3836506992218,2cyclictest0-21swapper/009:45:140
3836506992218,2cyclictest0-21swapper/009:35:000
383651599215,2cyclictest421rcuog/209:35:152
3836515992118,2cyclictest3923582-21fschecks_time08:35:102
3836515992117,2cyclictest4137712-21cpuspeed_turbos12:10:112
3836515992117,2cyclictest3948318-21fschecks_count09:00:122
3836515992117,2cyclictest3883459-21aten2_r5power_p07:55:102
3836515992117,2cyclictest0-21swapper/209:25:192
3836506992118,2cyclictest4116812-21kworker/u8:3+events_unbound11:50:190
383651599202,1cyclictest0-21swapper/210:20:252
3836515992016,2cyclictest3938380-21fschecks_time08:50:122
3836515992016,2cyclictest3938380-21fschecks_time08:50:112
3836515992015,4cyclictest4041975-21kworker/u8:1+flush-8:012:05:162
3836515992015,3cyclictest4002335-21cron09:55:012
3836515992015,3cyclictest0-21swapper/209:20:012
3836506992014,4cyclictest4125653-21kthreadcore11:55:140
38359662204,9sleep20-21swapper/207:05:292
3836515991916,2cyclictest4097254-21cron11:30:002
3836515991916,2cyclictest4097254-21cron11:30:002
3836515991915,2cyclictest4062548-21aten2_r5power_e10:55:102
3836515991915,2cyclictest3978135-21fschecks_count09:30:102
3836515991915,2cyclictest0-21swapper/207:30:202
3836515991910,7cyclictest4035760-21tr10:25:182
39670942180,2sleep3481ktimers/309:15:283
383651599189,7cyclictest3845947-21tr07:15:312
3836515991815,2cyclictest4142818-21fschecks_time12:15:102
3836515991815,2cyclictest4042679-21aten2_r5power_p10:35:102
3836515991814,2cyclictest4018110-21fschecks_count10:10:102
3836515991814,2cyclictest0-21swapper/210:40:092
383651599177,8cyclictest4055716-21tr10:45:152
3836515991713,2cyclictest4097872-21fschecks_time11:30:132
3836515991713,2cyclictest4097872-21fschecks_time11:30:122
3836515991713,2cyclictest0-21swapper/211:07:372
3836515991713,2cyclictest0-21swapper/207:40:122
3836515991712,3cyclictest4026508-21ntpq10:15:182
3836515991712,3cyclictest0-21swapper/207:25:152
3836515991711,4cyclictest0-21swapper/212:20:102
41444672160,2sleep3481ktimers/312:15:163
383651599168,6cyclictest3919809-21tr08:30:162
383651599163,8cyclictest4012818-21apt-get10:05:072
3836515991613,2cyclictest0-21swapper/211:40:102
3836515991613,2cyclictest0-21swapper/209:11:372
3836515991613,2cyclictest0-21swapper/207:20:572
3836515991612,3cyclictest0-21swapper/209:20:262
383651599161,11cyclictest4158336-21kthreadcore12:30:172
3836515991610,4cyclictest0-21swapper/211:35:182
3836515991610,2cyclictest0-21swapper/211:03:072
39133262152,8sleep30-21swapper/308:25:083
383651599159,4cyclictest0-21swapper/208:55:172
383651599159,4cyclictest0-21swapper/208:55:172
3836515991510,3cyclictest0-21swapper/207:35:142
40112442142,8sleep30-21swapper/310:00:193
40928262132,7sleep30-21swapper/311:25:123
40928262132,7sleep30-21swapper/311:25:123
40922672132,7sleep30-21swapper/311:24:593
40418692134,6sleep30-21swapper/310:30:293
39771342133,6sleep30-21swapper/309:25:283
38925652132,7sleep30-21swapper/308:00:293
38682182132,6sleep30-21swapper/307:40:023
38649362132,7sleep30-21swapper/307:35:153
41630242123,5sleep30-21swapper/312:35:143
41570722122,5sleep30-21swapper/312:30:023
41560642122,6sleep30-21swapper/312:25:203
41474532122,6sleep30-21swapper/312:20:093
41358242122,6sleep30-21swapper/312:05:203
41318102122,6sleep30-21swapper/312:02:113
41221462122,6sleep30-21swapper/311:55:023
41174282122,6sleep30-21swapper/311:50:083
41160862122,6sleep30-21swapper/311:45:183
41077212122,6sleep30-21swapper/311:40:093
40978962122,6sleep30-21swapper/311:30:143
40978962122,6sleep30-21swapper/311:30:133
40820962120,7sleep30-21swapper/311:15:013
40710852122,6sleep30-21swapper/311:00:203
40644802122,6sleep30-21swapper/310:55:183
40612852122,6sleep30-21swapper/310:50:203
40473532122,5sleep30-21swapper/310:40:013
40471872122,6sleep30-21swapper/310:38:123
40220952122,6sleep30-21swapper/310:10:283
40123792122,5sleep30-21swapper/310:05:023
40031282122,6sleep30-21swapper/309:55:143
39935282122,6sleep30-21swapper/309:45:153
39835292122,6sleep30-21swapper/309:35:163
39776172122,6sleep30-21swapper/309:30:023
39530562122,6sleep30-21swapper/309:05:093
39521322122,6sleep30-21swapper/309:00:293
39338862122,6sleep30-21swapper/308:45:163
39280692122,5sleep30-21swapper/308:40:013
39275672122,6sleep30-21swapper/308:35:283
39031562122,5sleep30-21swapper/308:15:023
38584532122,5sleep30-21swapper/307:30:033
38540452122,6sleep30-21swapper/307:25:133
38489652122,6sleep30-21swapper/307:20:153
38437022122,6sleep30-21swapper/307:15:253
38403032122,6sleep30-21swapper/307:10:203
41374922112,5sleep30-21swapper/312:10:113
41024782112,5sleep30-21swapper/311:35:073
40826032112,6sleep30-21swapper/311:15:093
40721942112,5sleep30-21swapper/311:05:013
40564362112,5sleep30-21swapper/310:45:233
40369602113,5sleep30-21swapper/310:25:293
40273012112,6sleep30-21swapper/310:18:053
39993312112,5sleep30-21swapper/309:50:173
39913402112,5sleep30-21swapper/309:40:173
39684902112,5sleep30-21swapper/309:20:143
39581922110,7sleep30-21swapper/309:10:123
39435012112,6sleep30-21swapper/308:55:153
39435012112,6sleep30-21swapper/308:55:143
39378242112,5sleep30-21swapper/308:50:013
39378242112,5sleep30-21swapper/308:50:003
39182502112,5sleep30-21swapper/308:30:033
39083742112,5sleep30-21swapper/308:20:113
38934612112,5sleep30-21swapper/308:05:013
38879622112,6sleep30-21swapper/307:59:033
38771482112,5sleep30-21swapper/307:45:203
38983972102,5sleep30-21swapper/308:10:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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