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2026-06-11 - 15:10

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 Thu Jun 11, 2026 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9928652710,1chrt992866-21timerwakeupswit10:30:471
787081997164,5cyclictest953191-21apt-get09:53:480
8588302680,5sleep2371rcuc/208:20:272
8588302680,5sleep2371rcuc/208:20:272
10395482670,5chrt0-21swapper/011:20:350
9323322650,3sleep375-21kworker/3:1+mm_percpu_wq09:30:423
787083996250,9cyclictest1012277-21kworker/u8:0+flush-8:012:30:311
787083995952,5cyclictest988878-21kworker/u8:1+events_unbound11:10:421
787083995851,5cyclictest988878-21kworker/u8:1+flush-8:010:55:421
787088995751,5cyclictest829092-21kworker/u8:0+events_unbound09:25:462
787083995752,3cyclictest1012277-21kworker/u8:0+events_unbound11:15:411
787083995750,5cyclictest829092-21kworker/u8:0+flush-8:009:00:461
787083995749,6cyclictest988878-21kworker/u8:1+flush-8:011:00:411
787083995651,4cyclictest988878-21kworker/u8:1+events_unbound11:25:411
787083995651,3cyclictest1072327-21kworker/u8:2+flush-8:012:15:381
787083995648,6cyclictest951208-21kworker/u8:4+flush-8:010:20:421
787083995550,4cyclictest933030-21kworker/u8:2+flush-8:010:15:401
787083995549,4cyclictest1027644-21kworker/u8:3+events_unbound11:40:411
787083995548,5cyclictest951208-21kworker/u8:4+flush-8:010:40:471
787083995548,5cyclictest951208-21kworker/u8:4+flush-8:010:40:471
787083995447,5cyclictest1072327-21kworker/u8:2+flush-8:012:05:401
787083995446,6cyclictest1012277-21kworker/u8:0+flush-8:011:45:421
787083995446,5cyclictest811840-21kworker/u8:1+events_unbound07:50:421
787083995348,4cyclictest1072327-21kworker/u8:2+events_unbound11:55:451
787083995348,3cyclictest933030-21kworker/u8:2+events_unbound10:30:011
787083995347,5cyclictest1012277-21kworker/u8:0+flush-8:012:25:401
787083995347,4cyclictest4146504-21kworker/u8:4+events_unbound09:15:421
787083995248,3cyclictest988878-21kworker/u8:1+events_unbound11:35:011
787083995247,4cyclictest933030-21kworker/u8:2+flush-8:010:00:451
787083995246,5cyclictest933030-21kworker/u8:2+events_unbound09:55:431
787083995241,8cyclictest948091-21apt-get09:50:001
787088995146,4cyclictest942310-21kworker/u8:0+events_unbound09:40:502
787083995146,3cyclictest4146504-21kworker/u8:4+flush-8:007:30:361
787083995143,6cyclictest1081619-21kworker/u8:1+events_unbound12:35:391
787081995141,8cyclictest1092308-21ntpq12:10:410
787088995045,4cyclictest988878-21kworker/u8:1+flush-8:011:50:422
787083995044,5cyclictest4146504-21kworker/u8:4+flush-8:008:15:411
787083995044,4cyclictest1012277-21kworker/u8:0+events_unbound12:00:301
787083994944,4cyclictest4146504-21kworker/u8:4+flush-8:009:05:311
787083994944,4cyclictest4146504-21kworker/u8:4+events_unbound09:30:401
787083994942,5cyclictest1012277-21kworker/u8:0+flush-8:012:10:431
787083994939,7cyclictest943159-21latency_hist09:45:011
787088994843,4cyclictest1081619-21kworker/u8:1+events_unbound12:00:382
787088994842,4cyclictest951208-21kworker/u8:4+events_unbound10:40:362
787088994842,4cyclictest951208-21kworker/u8:4+events_unbound10:40:362
787083994843,4cyclictest1027644-21kworker/u8:3+events_unbound11:20:411
787083994842,5cyclictest434623-21kworker/u8:3+flush-8:007:15:441
787083994841,6cyclictest829092-21kworker/u8:0+flush-8:008:55:431
787088994742,4cyclictest829092-21kworker/u8:0+events_unbound08:45:422
787088994742,3cyclictest4146504-21kworker/u8:4+events_unbound07:30:392
787083994742,4cyclictest988878-21kworker/u8:1+events_unbound11:50:381
787083994742,4cyclictest868122-21kworker/u8:2+flush-8:008:30:421
78708199471,44cyclictest1-21systemd10:17:370
787088994640,4cyclictest988878-21kworker/u8:1+events_unbound10:50:422
787088994541,3cyclictest4146504-21kworker/u8:4+events_unbound08:50:432
787083994539,4cyclictest829092-21kworker/u8:0+flush-8:008:10:401
787088994440,3cyclictest1012277-21kworker/u8:0+events_unbound11:00:482
787083994438,5cyclictest4146504-21kworker/u8:4+flush-8:007:25:451
787083994438,4cyclictest4146504-21kworker/u8:4+flush-8:009:20:411
787083994438,4cyclictest1012277-21kworker/u8:0+events_unbound11:05:381
787083994437,5cyclictest4146504-21kworker/u8:4+events_unbound07:35:431
787083994430,9cyclictest1704890-21systemd-journal10:45:361
787081994438,4cyclictest434623-21kworker/u8:3+events_unbound07:30:470
787088994339,3cyclictest868122-21kworker/u8:2+flush-8:008:35:482
787083994338,4cyclictest4146504-21kworker/u8:4+flush-8:009:10:431
787081994333,8cyclictest1058888-21diskstats11:40:320
787088994238,3cyclictest1072327-21kworker/u8:2+events_unbound12:05:012
787088994236,4cyclictest4146504-21kworker/u8:4+events_unbound07:20:422
787083994237,4cyclictest988878-21kworker/u8:1+events_unbound10:35:461
787083994230,8cyclictest1058109-21latency_hist11:40:001
787083994135,5cyclictest811840-21kworker/u8:1+events_unbound08:25:001
787083994135,5cyclictest811840-21kworker/u8:1+events_unbound08:24:591
787083994135,4cyclictest829092-21kworker/u8:0+events_unbound07:55:471
787081994133,6cyclictest1078393-21apt-get12:00:260
787083994034,4cyclictest951208-21kworker/u8:4+events_unbound10:10:451
787083994034,4cyclictest4146504-21kworker/u8:4+events_unbound09:35:371
787083994033,6cyclictest1012277-21kworker/u8:0+events_unbound12:20:441
787083994033,5cyclictest829092-21kworker/u8:0+flush-8:008:25:441
787083993935,3cyclictest792083-21kworker/u8:0+events_unbound07:25:001
787083993933,4cyclictest887956-21kworker/u8:1+flush-8:008:50:471
78708199391,36cyclictest1013196-21munin-run10:55:010
9776302380,6sleep20-21swapper/210:15:442
787088993833,4cyclictest887956-21kworker/u8:1+events_unbound09:35:412
787083993833,3cyclictest868122-21kworker/u8:2+events_unbound08:35:361
787081993830,5cyclictest798866-21latency_hist07:20:010
787081993829,7cyclictest823050-21ntpq07:40:410
787081993828,8cyclictest804370-21diskstats07:25:300
787088993733,3cyclictest868122-21kworker/u8:2+events_unbound08:34:382
787083993730,5cyclictest811840-21kworker/u8:1+flush-8:007:40:411
787088993631,4cyclictest829092-21kworker/u8:0+events_unbound07:50:362
787083993631,3cyclictest933030-21kworker/u8:2+events_unbound09:50:481
787083993629,5cyclictest829092-21kworker/u8:0+flush-8:008:05:381
787088993530,3cyclictest988878-21kworker/u8:1+events_unbound10:35:322
787083993531,3cyclictest868122-21kworker/u8:2+events_unbound08:40:491
787083993530,3cyclictest988878-21kworker/u8:1+events_unbound10:55:021
787088993430,3cyclictest4146504-21kworker/u8:4+events_unbound09:20:432
787083993430,3cyclictest4146504-21kworker/u8:4+events_unbound07:10:331
787081993429,4cyclictest434623-21kworker/u8:3+events_unbound07:10:480
787081993428,4cyclictest1012277-21kworker/u8:0+flush-8:011:06:310
787081993427,5cyclictest963016-21grep10:00:470
787081993427,5cyclictest908307-21/usr/sbin/munin09:10:400
787081993426,6cyclictest814228-21/usr/sbin/munin07:35:380
7822642343,6sleep10-21swapper/107:05:131
787088993329,3cyclictest868122-21kworker/u8:2+flush-8:008:26:172
787088993329,3cyclictest1012277-21kworker/u8:0+events_unbound12:35:042
787088993327,4cyclictest988878-21kworker/u8:1+flush-8:011:30:112
787088993324,6cyclictest1028504-21cat11:10:002
787083993330,2cyclictest829092-21kworker/u8:0+events_unbound09:25:311
787083993327,4cyclictest4146504-21kworker/u8:4+flush-8:008:00:371
787083993227,3cyclictest942310-21kworker/u8:0+flush-8:010:05:391
787081993224,6cyclictest868434-21latency_hist08:30:010
787081993224,6cyclictest811840-21kworker/u8:1+flush-8:008:20:450
787081993224,6cyclictest811840-21kworker/u8:1+flush-8:008:20:440
787088993024,4cyclictest1058109-21sh11:40:002
787081993024,4cyclictest907612-21grep09:05:490
787088992924,3cyclictest983841-21aten2_r5power_v10:25:302
787083992925,3cyclictest829092-21kworker/u8:0+events_unbound08:45:401
787088992824,2cyclictest898722-21fschecks_count09:00:322
787088992823,4cyclictest933030-21kworker/u8:2+events_unbound10:30:402
787088992820,6cyclictest1704890-21systemd-journal10:05:512
787081992824,3cyclictest1098738-21fschecks_count12:20:310
787081992821,3cyclictest0-21swapper/007:45:470
787088992723,3cyclictest908599-21fschecks_count09:10:332
787088992722,3cyclictest897778-21unixbench_singl08:55:482
787081992723,3cyclictest1-21systemd09:00:010
787081992723,2cyclictest988410-21idleruntime-cro10:30:000
787081992720,3cyclictest0-21swapper/011:50:270
787088992623,2cyclictest814604-21fschecks_time07:35:322
787088992622,3cyclictest988878-21kworker/u8:1+events_unbound10:45:082
787088992622,3cyclictest951208-21kworker/u8:4+events_unbound09:54:122
787088992617,7cyclictest828479-21unixbench_singl07:45:492
787081992622,2cyclictest0-21swapper/008:00:000
787081992621,4cyclictest829092-21kworker/u8:0+flush-8:009:00:320
787081992619,4cyclictest0-21swapper/010:10:270
787081992618,6cyclictest948094-21latency_hist09:50:010
787081992617,7cyclictest888816-21diskstats08:50:300
7866042262,5sleep00-21swapper/007:06:010
787088992522,2cyclictest958812-21aten2_r5power_e10:00:282
787088992521,2cyclictest794351-21cpuspeed_turbos07:15:312
787088992521,2cyclictest1077710-21unixbench_singl11:55:462
78708199252,22cyclictest0-21swapper/012:30:470
787081992521,3cyclictest919283-21sort09:20:350
787081992521,3cyclictest1078117-21sendmail12:00:000
787081992521,2cyclictest854636-21irqrtprio08:15:350
787081992520,4cyclictest955126-21kthreadcore09:55:360
787081992520,4cyclictest937786-21unixbench_singl09:35:460
787081992520,4cyclictest829092-21kworker/u8:0+flush-8:008:45:460
787081992520,3cyclictest1018339-21munin-run11:00:010
787081992518,5cyclictest918161-21apt-get09:20:010
787081992518,4cyclictest988878-21kworker/u8:1+flush-8:011:25:420
787088992421,2cyclictest823545-21grep07:40:472
787088992420,3cyclictest933030-21kworker/u8:2+events_unbound09:47:442
787088992420,3cyclictest1058698-21aten2_r5power_e11:40:292
78708199242,21cyclictest0-21swapper/009:40:460
787081992421,2cyclictest1032461-21needreboot11:10:410
787081992419,3cyclictest4146504-21kworker/u8:4+flush-8:008:00:360
787081992419,3cyclictest0-21swapper/009:30:370
78708899232,5cyclictest0-21swapper/211:45:382
787088992319,2cyclictest953952-21cut09:55:322
78708899230,11cyclictest371rcuc/211:15:382
787083992319,2cyclictest0-21swapper/107:45:321
78708199234,9cyclictest1704890-21systemd-journal11:35:360
787081992320,2cyclictest1108033-21cron12:30:000
787081992319,3cyclictest989995-21kthreadcore10:30:350
787081992319,2cyclictest851114-21kthreadcore08:10:370
787081992318,4cyclictest988878-21kworker/u8:1+events_unbound10:35:400
787081992317,4cyclictest1012277-21kworker/u8:0+events_unbound11:45:460
9361472220,3sleep375-21kworker/3:1+events09:35:353
787088992218,3cyclictest829092-21kworker/u8:0+flush-8:008:10:062
787088992218,2cyclictest918401-21cat09:20:002
787088992217,3cyclictest0-21swapper/212:35:002
787088992213,7cyclictest1704890-21systemd-journal08:17:342
787081992218,3cyclictest951208-21kworker/u8:4+flush-8:010:40:410
787081992218,3cyclictest951208-21kworker/u8:4+flush-8:010:40:400
787081992218,3cyclictest880-21mta-sts-daemon11:15:330
787081992217,3cyclictest803829-21cron07:24:590
787081992216,4cyclictest0-21swapper/011:30:360
78708899219,3cyclictest161rcu_preempt09:30:342
78708899212,5cyclictest0-21swapper/207:25:292
787088992116,3cyclictest0-21swapper/212:29:592
787081992118,2cyclictest968615-21latency_hist10:10:010
787081992117,3cyclictest1072327-21kworker/u8:2+flush-8:012:15:310
787081992117,3cyclictest0-21swapper/011:00:350
787081992117,2cyclictest0-21swapper/008:30:370
787081992117,2cyclictest0-21swapper/007:50:390
787081992116,3cyclictest0-21swapper/009:25:360
78708899202,5cyclictest0-21swapper/207:10:052
787088992017,2cyclictest838768-21munin-run07:59:592
787088992015,3cyclictest969778-21kthreadcore10:10:352
787088992015,3cyclictest1094397-21sed12:15:362
787081992017,2cyclictest1081619-21kworker/u8:1+flush-8:012:35:470
787081992017,2cyclictest0-21swapper/012:05:400
787081992015,3cyclictest0-21swapper/010:25:000
787081992012,6cyclictest882316-21sed08:40:400
7864842204,9sleep20-21swapper/207:05:472
8981662190,3sleep375-21kworker/3:1+mm_percpu_wq09:00:013
787088991915,2cyclictest0-21swapper/208:40:362
787088991914,4cyclictest0-21swapper/211:00:012
78708899191,2cyclictest161rcu_preempt12:20:382
787081991915,3cyclictest0-21swapper/008:35:470
787081991914,3cyclictest0-21swapper/010:45:370
787081991910,7cyclictest847832-21ntpq08:05:430
7825762193,9sleep30-21swapper/307:05:323
78708899188,8cyclictest1704890-21systemd-journal11:25:002
78708899186,2cyclictest421rcuog/210:20:262
787088991813,3cyclictest1044496-21sed11:25:352
787088991811,5cyclictest1-21systemd08:10:002
11074332187,7sleep30-21swapper/312:25:483
9756552177,6sleep30-21swapper/310:15:383
78708899179,6cyclictest1090446-21tr12:10:362
78708899178,7cyclictest839931-21sed08:00:352
787088991713,2cyclictest0-21swapper/211:10:292
78708899161,3cyclictest161rcu_preempt09:05:292
10482672142,7sleep30-21swapper/311:30:023
10272032142,7sleep30-21swapper/311:05:413
8981662132,6sleep30-21swapper/309:00:013
8884012132,6sleep30-21swapper/308:50:023
8872322132,7sleep30-21swapper/308:45:403
8693772132,7sleep30-21swapper/308:30:363
8087572132,7sleep30-21swapper/307:30:003
11181632132,7sleep30-21swapper/312:40:003
10731852132,6sleep30-21swapper/311:55:013
10728112133,6sleep30-21swapper/311:50:483
10580912132,7sleep30-21swapper/311:40:013
10088562132,7sleep30-21swapper/310:50:323
9989682122,6sleep30-21swapper/310:40:343
9989682122,6sleep30-21swapper/310:40:333
9949232122,6sleep30-21swapper/310:35:353
9640332122,6sleep30-21swapper/310:05:343
9608982122,6sleep30-21swapper/310:00:373
9541682122,6sleep30-21swapper/309:55:353
9481372122,5sleep30-21swapper/309:50:013
9423682122,6sleep30-21swapper/309:40:473
9233572122,5sleep30-21swapper/309:25:023
9223722122,6sleep30-21swapper/309:20:403
9135622122,6sleep30-21swapper/309:15:303
8786802122,6sleep30-21swapper/308:40:313
8651372122,6sleep30-21swapper/308:25:373
8583412122,6sleep30-21swapper/308:17:353
8389992122,5sleep30-21swapper/308:00:013
8239692122,5sleep30-21swapper/307:45:003
8192342122,6sleep30-21swapper/307:40:283
8141462122,5sleep30-21swapper/307:35:023
8092552122,6sleep30-21swapper/307:30:213
7988942122,5sleep30-21swapper/307:20:013
7932332122,6sleep30-21swapper/307:15:043
7871602122,6sleep30-21swapper/307:10:013
11080462122,5sleep30-21swapper/312:30:003
10982762122,5sleep30-21swapper/312:20:023
10924862122,6sleep30-21swapper/312:10:473
10386112122,6sleep30-21swapper/311:20:033
10352852122,6sleep30-21swapper/311:15:373
10188742122,6sleep30-21swapper/311:00:323
10134082122,5sleep30-21swapper/310:55:033
10074222122,6sleep30-21swapper/310:45:483
9891372111,6sleep30-21swapper/310:30:353
9876062112,5sleep30-21swapper/310:25:453
9823862112,5sleep30-21swapper/310:20:383
9687992112,6sleep30-21swapper/310:10:043
9448042111,7sleep30-21swapper/309:45:363
9090442112,6sleep30-21swapper/309:10:373
9034262112,5sleep30-21swapper/309:05:313
8740312112,5sleep30-21swapper/308:35:343
8625682112,5sleep30-21swapper/308:20:413
8625682112,5sleep30-21swapper/308:20:413
8486702112,5sleep30-21swapper/308:10:013
8439452112,5sleep30-21swapper/308:05:283
8387032112,6sleep30-21swapper/307:59:303
8292362112,5sleep30-21swapper/307:50:313
10934652112,6sleep30-21swapper/312:15:233
10838362112,5sleep30-21swapper/312:05:333
10797872110,5sleep30-21swapper/312:00:353
10635152112,5sleep30-21swapper/311:45:033
10287312112,5sleep30-21swapper/311:10:323
10588892101,5sleep30-21swapper/311:40:323
10435402102,5sleep30-21swapper/311:25:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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