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2026-03-27 - 15:45

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 highest latencies:
System rack5slot4s.osadl.org (updated Fri Mar 27, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
384890824860,2sleep0201rcuc/007:06:360
39930452750,2chrt481ktimers/309:31:343
39822202630,6chrt0-21swapper/209:21:302
3850468995639,8cyclictest3941801-21latency_hist08:40:010
3850468995344,6cyclictest4001363-21latency_hist09:40:010
3850468994941,5cyclictest3946747-21latency_hist08:45:010
385046899490,47cyclictest1-21systemd10:20:000
3850468994635,8cyclictest280-21systemd-journal11:50:000
3850468994512,32cyclictest3921307-21sshd08:16:480
3850470994237,3cyclictest2484880-21kworker/u8:2+events_unbound08:51:431
3850470994235,5cyclictest3981522-21kworker/u8:3+events_unbound09:36:411
3850470994135,4cyclictest4155622-21kworker/u8:1+flush-8:012:31:461
3850470994134,5cyclictest4060660-21kworker/u8:2+flush-8:010:56:451
3850470994036,3cyclictest4075655-21kworker/u8:3+events_unbound12:01:361
3850470994033,5cyclictest4006087-21kworker/u8:2+flush-8:009:51:411
3850470993933,5cyclictest4125652-21kworker/u8:0+events_unbound12:06:411
3850470993933,5cyclictest3798417-21kworker/u8:3+events_unbound08:46:421
3850470993932,5cyclictest280-21systemd-journal11:27:301
3850470993931,6cyclictest3971909-21kworker/u8:0+flush-8:011:31:401
3850468993929,7cyclictest280-21systemd-journal09:30:000
3850470993831,5cyclictest280-21systemd-journal07:19:471
3850468993830,6cyclictest1-21systemd08:56:480
38501822381,31sleep30-21swapper/307:08:323
39530382370,5sleep30-21swapper/308:51:333
3850470993732,4cyclictest4075655-21kworker/u8:3+events_unbound11:56:281
3850470993732,4cyclictest3798417-21kworker/u8:3+flush-8:008:31:301
3850470993731,4cyclictest4075655-21kworker/u8:3+flush-8:012:36:401
385046899378,19cyclictest3871355-21ntpq07:26:400
385046899376,20cyclictest4115495-21idleruntime-cro11:35:000
385046899366,14cyclictest3885312-21kthreadcore07:41:370
385046899364,22cyclictest4052648-21cut10:31:340
3850468993626,8cyclictest3985691-21ntpq09:21:380
385046899359,15cyclictest4154613-21ntpq12:11:420
385046899359,15cyclictest4154613-21ntpq12:11:420
385046899358,12cyclictest3857687-21aten2_r5power_c07:16:280
385046899356,15cyclictest4119658-21ntpq11:36:390
385046899355,20cyclictest4140468-21apt-config12:00:000
385046899355,11cyclictest4124596-21ntpq11:41:410
3850468993528,5cyclictest4120164-21kworker/u8:2+events_unbound11:51:270
38502622354,11sleep10-21swapper/107:09:351
3850470993430,3cyclictest3932424-21kworker/u8:1+events_unbound08:41:321
3850470993429,4cyclictest4155622-21kworker/u8:1+flush-8:012:20:301
3850470993428,4cyclictest2484880-21kworker/u8:2+flush-8:009:21:401
385046899349,7cyclictest4085031-21ntpq11:01:410
385046899349,14cyclictest3852921-21ps07:11:340
385046899348,15cyclictest4031916-21diskstats10:11:290
385046899348,15cyclictest4031916-21diskstats10:11:290
385046899347,17cyclictest4176103-21interrupts12:36:330
385046899347,15cyclictest4104815-21ntpq11:21:410
385046899346,17cyclictest4089880-21/usr/sbin/munin11:06:360
385046899346,17cyclictest3967311-21df_inode09:06:290
3850468993412,11cyclictest589-21runrttasks10:26:280
3850468993410,13cyclictest3891341-21/usr/sbin/munin07:46:460
3850468993410,11cyclictest3896085-21ntpq07:51:390
3850473993326,5cyclictest4016338-21gpgv09:55:002
3850470993326,5cyclictest4120164-21kworker/u8:2+flush-8:011:41:301
3850470993326,5cyclictest4090976-21kworker/u8:1+events_unbound11:21:401
385046899339,13cyclictest4002250-21/usr/sbin/munin09:41:320
385046899338,14cyclictest4167544-21kthreadcore12:26:340
385046899337,15cyclictest4070394-21/usr/sbin/munin10:46:430
385046899337,15cyclictest4060190-21ntpq10:36:390
385046899336,17cyclictest4110319-21sshd11:27:300
385046899336,17cyclictest3977210-21df_inode09:16:280
385046899336,15cyclictest4020329-21wc09:56:360
385046899336,13cyclictest4140292-21apt-get12:00:030
385046899336,11cyclictest3956238-21sed08:51:440
385046899336,11cyclictest3913003-21ps08:11:340
385046899335,13cyclictest0-21swapper/008:21:110
385046899334,19cyclictest4061766-21fschecks_time10:41:300
385046899334,16cyclictest0-21swapper/010:56:270
3850468993328,3cyclictest3902934-21irqrtprio08:01:330
3850468993311,10cyclictest0-21swapper/011:10:300
3850468993310,13cyclictest3907518-21/usr/sbin/munin08:06:290
3850470993228,3cyclictest4021102-21kworker/u8:3+events_unbound10:16:301
3850470993227,4cyclictest4075655-21kworker/u8:3+flush-8:012:11:401
3850470993227,4cyclictest4075655-21kworker/u8:3+flush-8:012:11:401
3850470993227,4cyclictest4060660-21kworker/u8:2+events_unbound11:01:451
3850470993225,5cyclictest3961519-21apt-get09:00:001
385046899328,14cyclictest4159451-21ntpq12:16:380
385046899328,14cyclictest4026897-21cpuspeed10:06:280
385046899328,14cyclictest3881224-21ntpq07:36:400
385046899328,14cyclictest3881224-21ntpq07:36:400
385046899327,15cyclictest4172770-21/usr/sbin/munin12:31:360
385046899327,14cyclictest4164402-21/usr/sbin/munin12:21:380
385046899327,14cyclictest4006939-21df09:46:290
385046899327,14cyclictest3862848-21df_inode07:21:290
385046899327,12cyclictest4022470-21irqrtprio10:01:330
385046899325,17cyclictest4150444-21sed12:10:000
3850468993218,9cyclictest4071323-21apt-get10:51:270
3850468993212,10cyclictest3872869-21hddtemp_smartct07:31:310
3850468993210,4cyclictest3962137-21apt-get09:01:280
38501192324,9sleep20-21swapper/207:07:432
39635672310,3sleep2161rcu_preempt09:01:352
3850470993126,4cyclictest2484880-21kworker/u8:2+events_unbound09:10:001
3850470993125,4cyclictest3896121-21ntpq07:51:401
3850470993122,6cyclictest280-21systemd-journal07:26:481
385046899319,11cyclictest4045400-21ntpq10:21:410
385046899319,10cyclictest4099838-21ntpq11:16:390
385046899318,14cyclictest0-21swapper/008:26:340
385046899317,13cyclictest4011556-21sshd09:50:470
385046899316,15cyclictest3995687-21ntpq09:31:400
385046899316,15cyclictest3935910-21ntp_states08:31:410
3850470993025,4cyclictest3932424-21kworker/u8:1+events_unbound10:11:251
3850470993025,4cyclictest3932424-21kworker/u8:1+events_unbound10:11:251
3850470993025,3cyclictest3850333-21kworker/u8:0+flush-8:007:36:351
3850470993025,3cyclictest3850333-21kworker/u8:0+flush-8:007:36:351
3850470993022,6cyclictest3798417-21kworker/u8:3+events_unbound08:06:361
3850470993021,7cyclictest3976609-21latency_hist09:15:011
3850470993020,8cyclictest4025537-21ntpq10:01:391
385046899309,11cyclictest3897306-21/usr/sbin/munin07:56:290
385046899308,11cyclictest3950850-21ntpq08:46:390
385046899308,10cyclictest0-21swapper/009:11:110
3850473992925,2cyclictest3946404-21unixbench_multi08:41:452
3850473992923,4cyclictest4145107-21unixbench_multi12:01:472
3850470992925,3cyclictest3971909-21kworker/u8:0+events_unbound11:11:481
3850470992924,4cyclictest3850333-21kworker/u8:0+flush-8:007:31:341
3850470992924,4cyclictest2484880-21kworker/u8:2+flush-8:007:11:441
3850470992923,5cyclictest3798417-21kworker/u8:3+flush-8:008:22:091
3850470992923,4cyclictest3931588-21latency_hist08:30:011
3850470992923,4cyclictest2484880-21kworker/u8:2+flush-8:007:56:471
3850470992922,5cyclictest4021102-21kworker/u8:3+flush-8:010:06:401
3850473992824,2cyclictest4165883-21fschecks_count12:26:292
3850473992824,2cyclictest3997029-21cpuspeed_turbos09:36:302
3850473992822,4cyclictest3961564-21gpgv09:00:002
3850470992824,3cyclictest4006087-21kworker/u8:2+flush-8:009:46:441
3850470992824,3cyclictest0-21swapper/111:40:001
3850470992823,4cyclictest4060660-21kworker/u8:2+events_unbound10:49:481
3850470992823,4cyclictest3798417-21kworker/u8:3+events_unbound08:35:021
3850470992822,4cyclictest4021102-21kworker/u8:3+flush-8:010:26:311
3850470992821,6cyclictest3932424-21kworker/u8:1+flush-8:010:36:411
41473492270,4sleep3481ktimers/312:06:363
3850473992724,2cyclictest4100281-21unixbench_multi11:16:452
3850470992722,4cyclictest4120164-21kworker/u8:2+events_unbound11:51:341
3850470992722,4cyclictest3971909-21kworker/u8:0+events_unbound11:16:281
3850470992722,4cyclictest3971909-21kworker/u8:0+events_unbound10:41:381
3850470992722,3cyclictest3798417-21kworker/u8:3+events_unbound07:21:451
3850473992621,3cyclictest4125120-21unixbench_singl11:41:482
3850473992621,3cyclictest0-21swapper/208:40:002
3850470992621,4cyclictest3981522-21kworker/u8:3+flush-8:009:31:331
3850470992621,4cyclictest2484880-21kworker/u8:2+events_unbound08:11:291
3850470992621,3cyclictest4156633-21kthreadcore12:16:331
3850473992522,2cyclictest3992190-21fschecks_time09:31:302
3850473992521,2cyclictest3986937-21aten2_r5power_e09:26:262
3850473992521,2cyclictest3977024-21aten2_r5power_e09:16:272
3850473992521,2cyclictest3972067-21aten2_r5power_e09:11:282
3850473992520,3cyclictest4032017-21fschecks_time10:11:292
3850473992520,3cyclictest4032017-21fschecks_time10:11:292
3850470992521,3cyclictest3932424-21kworker/u8:1+events_unbound09:01:491
3850470992521,3cyclictest3902806-21irqcore08:01:331
3850470992519,4cyclictest4041606-21apt-get10:21:271
3850473992421,2cyclictest4093763-21kthreadcore11:11:352
3850473992421,2cyclictest3932364-21fschecks_time08:31:292
3850473992420,2cyclictest3967155-21aten2_r5power_p09:06:282
3850473992414,8cyclictest280-21systemd-journal08:03:472
3850470992420,3cyclictest4021102-21kworker/u8:3+flush-8:010:30:311
3850470992419,4cyclictest3981522-21kworker/u8:3+events_unbound09:25:081
3850470992419,3cyclictest3980525-21latency09:16:361
3850470992418,4cyclictest0-21swapper/111:50:011
3850470992417,6cyclictest3798417-21kworker/u8:3+flush-8:007:46:411
3850470992415,7cyclictest4090745-21latency_hist11:10:011
3850470992414,8cyclictest3886280-21ntpq07:41:411
3850473992320,2cyclictest4081294-21aten2_r5power_e11:01:282
3850473992319,3cyclictest3872714-21cpuspeed_turbos07:31:292
3850473992319,2cyclictest4111198-21fschecks_time11:31:302
3850473992319,2cyclictest0-21swapper/208:20:002
3850473992219,2cyclictest4170662-21aten2_r5power_p12:31:292
3850473992219,2cyclictest4071587-21fschecks_count10:51:292
3850473992218,2cyclictest4061701-21fschecks_count10:41:302
3850473992218,2cyclictest0-21swapper/210:50:002
3850473992217,3cyclictest4105261-21unixbench_singl11:21:462
3850473992217,3cyclictest4051160-21turbostat.cron10:30:002
40965542210,3chrt75-21kworker/3:1+events11:16:323
385047399212,14cyclictest4076258-21apt-get10:56:282
3850473992118,2cyclictest4016907-21aten2_r5power_p09:56:282
3850473992118,2cyclictest3926210-21unixbench_singl08:21:452
3850473992117,3cyclictest4115930-21aten2_r5power_p11:36:272
3850473992112,7cyclictest4140748-21cut12:00:012
385047399210,8cyclictest38683912sed07:26:322
385047399210,10cyclictest41273842kthreadcore11:46:342
3850470992118,2cyclictest0-21swapper/109:56:321
3850470992117,3cyclictest3932424-21kworker/u8:1+flush-8:009:40:051
3850470992115,4cyclictest4155622-21kworker/u8:1+flush-8:012:26:401
40009132200,4chrt481ktimers/309:36:483
385047399207,9cyclictest4036603-21apt-get10:16:272
385047399202,13cyclictest3877431-21apt-get07:36:272
385047399202,13cyclictest3877431-21apt-get07:36:272
385047399202,12cyclictest4001742-21apt-get09:41:272
3850473992017,2cyclictest4045291-21needreboot10:21:382
3850473992016,2cyclictest0-21swapper/207:21:302
3850473992014,4cyclictest4179861-21unixbench_singl12:36:472
3850473992014,4cyclictest3862236-21idleruntime-cro07:20:002
3850470992017,2cyclictest0-21swapper/110:51:251
385047099201,17cyclictest3920793-21ld08:16:411
3850473991915,3cyclictest3916651-21idleruntime-cro08:15:002
3850473991915,2cyclictest3882444-21aten2_r5power_c07:41:272
3850473991915,2cyclictest0-21swapper/211:55:002
3850473991915,2cyclictest0-21swapper/210:01:332
3850473991914,3cyclictest0-21swapper/207:55:002
3850473991913,4cyclictest0-21swapper/208:51:292
3850473991815,2cyclictest0-21swapper/212:21:462
3850473991814,2cyclictest3850793-21aten2_r5power_e07:11:272
3850473991814,2cyclictest0-21swapper/211:26:392
385047399179,6cyclictest4052664-21tr10:31:342
385047399178,7cyclictest3951683-21sh08:50:002
385047399172,11cyclictest4056456-21apt-get10:36:282
3850473991714,2cyclictest3897485-21cpuspeed_turbos07:56:302
3850473991713,2cyclictest0-21swapper/212:06:282
3850473991713,2cyclictest0-21swapper/208:30:012
385047399169,5cyclictest4154121-21tr12:11:362
385047399169,5cyclictest4154121-21tr12:11:362
385047399167,7cyclictest4027417-21sed10:06:322
385047399162,13cyclictest0-21swapper/209:46:262
3850473991613,2cyclictest0-21swapper/211:05:522
3850473991611,3cyclictest0-21swapper/212:16:282
385047399161,11cyclictest3887422-21taskset07:46:272
385047399152,12cyclictest0-21swapper/208:07:562
41702032141,8sleep30-21swapper/312:30:003
41553312132,7sleep30-21swapper/312:15:003
41553312132,7sleep30-21swapper/312:15:003
41454422132,6sleep30-21swapper/312:05:003
40511842132,6sleep30-21swapper/310:30:023
39808102132,7sleep30-21swapper/309:16:423
39420282132,6sleep30-21swapper/308:40:023
39167732132,6sleep30-21swapper/308:15:023
38870442132,6sleep30-21swapper/307:45:003
41753232122,6sleep30-21swapper/312:35:023
41606332122,6sleep30-21swapper/312:21:263
41597022122,6sleep30-21swapper/312:16:443
41356692122,6sleep30-21swapper/311:56:263
41346352122,6sleep30-21swapper/311:51:443
41218672122,6sleep30-21swapper/311:41:373
41114772122,7sleep30-21swapper/311:31:343
41063182122,6sleep30-21swapper/311:26:323
40956622122,6sleep30-21swapper/311:15:003
40811562122,6sleep30-21swapper/311:00:483
40759242122,6sleep30-21swapper/310:55:023
40718112122,6sleep30-21swapper/310:51:333
40650242122,6sleep30-21swapper/310:41:373
40602962122,7sleep30-21swapper/310:36:443
40370722122,6sleep30-21swapper/310:16:333
40356602122,6sleep30-21swapper/310:11:443
40356602122,6sleep30-21swapper/310:11:443
40070722122,6sleep30-21swapper/309:46:323
39823142123,5sleep30-21swapper/309:21:323
39720252122,6sleep30-21swapper/309:11:283
39659032121,7sleep30-21swapper/309:01:413
39612612122,6sleep30-21swapper/308:56:483
39471102122,6sleep30-21swapper/308:46:283
39265292122,5sleep30-21swapper/308:25:013
39247682122,6sleep30-21swapper/308:21:363
39027472122,6sleep30-21swapper/308:01:343
39011142122,6sleep30-21swapper/307:56:443
38920162122,6sleep30-21swapper/307:50:023
38779302122,6sleep30-21swapper/307:36:343
38779302122,6sleep30-21swapper/307:36:343
38724992122,7sleep30-21swapper/307:31:283
38688362122,6sleep30-21swapper/307:26:343
38620372122,6sleep30-21swapper/307:17:483
41751252112,5sleep30-21swapper/312:33:543
41256462112,5sleep30-21swapper/311:45:023
41196202112,5sleep30-21swapper/311:36:393
41008352111,6sleep30-21swapper/311:20:023
40898822112,6sleep30-21swapper/311:06:383
40668182112,5sleep30-21swapper/310:46:313
40465672112,5sleep30-21swapper/310:26:293
40418472112,6sleep30-21swapper/310:21:313
40266142112,6sleep30-21swapper/310:05:143
40241012112,5sleep30-21swapper/310:01:373
40171322112,5sleep30-21swapper/309:56:313
40112882112,5sleep30-21swapper/309:50:013
40015092112,5sleep30-21swapper/309:40:023
39871872112,5sleep30-21swapper/309:26:293
39669342112,5sleep30-21swapper/309:05:023
39372472112,5sleep30-21swapper/308:36:293
39320542112,5sleep30-21swapper/308:31:273
39125382112,5sleep30-21swapper/308:11:333
39117092112,6sleep30-21swapper/308:10:003
38881322112,5sleep30-21swapper/307:46:373
38624892112,6sleep30-21swapper/307:20:203
38509872111,6sleep30-21swapper/307:11:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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