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2026-07-19 - 10:58

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 all highest latencies:
System rack5slot4s.osadl.org (updated Sun Jul 19, 2026 00:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
86190723330,2sleep3584-21kworker/3:2-events21:37:403
100018022040,6sleep30-21swapper/323:57:343
97348122030,2sleep30-21swapper/323:32:303
81453021930,2sleep3471rcuc/320:52:293
711514996343,18cyclictest827079-21ntpq21:02:340
711514995644,9cyclictest281-21systemd-journal23:40:000
9280812550,4chrt0-21swapper/022:47:250
9280812550,4chrt0-21swapper/022:47:250
711514995346,5cyclictest852634-21latency_hist21:30:010
711522995243,6cyclictest738579-21cat19:35:002
711517995236,14cyclictest808458-21/usr/sbin/munin20:47:401
711514994725,4cyclictest789619-21sed20:27:300
711517994624,20cyclictest723701-21/usr/sbin/munin19:22:351
711514994638,6cyclictest857549-21latency_hist21:35:000
711514994636,8cyclictest779058-21diskstats20:17:290
711517994438,4cyclictest788495-21kworker/u8:0+events_unbound20:37:381
711522994333,7cyclictest877611-21store21:55:012
711517994226,14cyclictest833968-21irqrtprio21:12:291
711517994223,16cyclictest281-21systemd-journal23:08:391
711517994124,15cyclictest885341-21kthreadcore22:02:321
711517994124,15cyclictest804265-21irqrtprio20:42:301
711517994124,15cyclictest804265-21irqrtprio20:42:301
711517994122,17cyclictest832557-21unixbench_multi21:07:431
711517994122,17cyclictest753629-21apt-key19:50:011
711514994132,7cyclictest883156-21/usr/sbin/munin22:02:410
711514994131,8cyclictest832059-21ntpq21:07:360
711514994122,3cyclictest991801-21ls23:50:010
711514994122,3cyclictest991801-21ls23:50:000
70678524128,8sleep30-21swapper/319:05:543
711517994025,13cyclictest0-21swapper/123:12:301
711517994024,14cyclictest978116-21irqrtprio23:37:301
711517994023,15cyclictest971798-21unixbench_singl23:27:431
711517993925,12cyclictest867459-21awk21:45:001
711517993923,14cyclictest911352-21kthreadcore22:27:341
711517993922,15cyclictest788754-21aten2_r5power_e20:27:241
711514993930,7cyclictest962111-21latency_hist23:20:010
711517993833,4cyclictest31241-21kworker/u8:1+flush-8:019:42:291
711517993831,5cyclictest691358-21kworker/u8:0+flush-8:019:11:451
711517993822,14cyclictest842728-21munin-run21:20:001
711517993822,14cyclictest1-21systemd20:16:391
711517993822,14cyclictest0-21swapper/119:37:261
711517993821,16cyclictest771430-21kthreadcore20:07:321
711517993821,15cyclictest1001687-21unixbench_multi23:57:441
711514993831,5cyclictest711837-21/usr/sbin/munin19:12:390
711514993830,6cyclictest1002391-21/usr/sbin/munin00:02:340
9179702370,2sleep20-21swapper/222:37:242
711517993722,13cyclictest0-21swapper/120:00:001
711517993719,16cyclictest847111-21processes21:22:421
711517993717,3cyclictest0-21swapper/123:17:381
711517993717,3cyclictest0-21swapper/119:17:241
711517993716,2cyclictest0-21swapper/100:27:251
711517993711,8cyclictest926565-21ntpq22:42:361
711514993731,4cyclictest691358-21kworker/u8:0+events_unbound19:27:290
711514993730,5cyclictest986154-21ntpq23:42:380
711514993729,6cyclictest281-21systemd-journal20:45:010
711514993729,6cyclictest281-21systemd-journal20:45:000
711517993618,2cyclictest0-21swapper/120:02:301
711517993618,17cyclictest0-21swapper/121:32:401
711517993617,8cyclictest877405-21cat21:55:011
711517993617,3cyclictest0-21swapper/123:52:401
711517993617,2cyclictest0-21swapper/120:22:381
711517993617,2cyclictest0-21swapper/119:27:421
711517993616,3cyclictest734810-21irqrtprio19:32:321
711517993614,2cyclictest161rcu_preempt22:40:001
711514993628,6cyclictest942536-21/usr/sbin/munin23:02:410
8279912350,2sleep3584-21kworker/3:2-events21:05:013
711517993527,6cyclictest1007586-21cpuspeed_turbos00:07:251
711517993518,15cyclictest822674-21unixbench_singl20:57:421
711517993517,2cyclictest0-21swapper/122:52:341
711517993516,3cyclictest1006915-21cron00:05:001
711517993516,2cyclictest0-21swapper/123:02:261
711517993516,2cyclictest0-21swapper/119:52:421
711514993531,3cyclictest936434-21kworker/u8:2+events_unbound23:13:380
711514993531,3cyclictest837778-21kworker/u8:0+events_unbound22:17:150
711514993530,4cyclictest837778-21kworker/u8:0+events_unbound22:59:130
711514993530,4cyclictest654600-21kworker/u8:2+flush-8:019:17:100
711514993525,8cyclictest921570-21ntpq22:37:350
711514993525,8cyclictest797403-21ntpq20:32:370
711517993428,4cyclictest902334-21unixbench_singl22:17:411
711517993418,2cyclictest0-21swapper/122:15:001
711517993417,15cyclictest0-21swapper/100:37:381
711517993414,3cyclictest0-21swapper/121:57:271
711517993414,3cyclictest0-21swapper/121:40:001
10245872340,5sleep01024591-21kthreadcore00:22:300
711517993317,3cyclictest0-21swapper/100:17:271
711517993316,15cyclictest0-21swapper/122:22:361
711517993315,7cyclictest281-21systemd-journal00:25:001
711517993315,16cyclictest0-21swapper/123:47:391
711517993315,16cyclictest0-21swapper/123:47:391
711517993314,3cyclictest0-21swapper/123:42:261
711514993326,5cyclictest862955-21apt-get21:42:210
711514993326,4cyclictest758874-21kworker/u8:2+events_unbound20:05:020
711514993325,6cyclictest923004-21diskstats22:42:260
71151499332,29cyclictest947087-21kworker/0:2+events23:22:170
711517993216,4cyclictest796868-21kthreadcore20:32:331
711517993214,3cyclictest0-21swapper/121:05:001
71151799320,9cyclictest777716-21ld20:12:381
711514993227,4cyclictest31241-21kworker/u8:1+events_unbound20:11:180
71151499322,29cyclictest847742-21kworker/0:1+events21:39:110
71151799318,3cyclictest0-21swapper/122:05:521
711517993116,2cyclictest0-21swapper/122:32:351
711517993116,2cyclictest0-21swapper/121:47:241
711517993113,3cyclictest0-21swapper/100:12:261
711517993112,3cyclictest0-21swapper/122:47:391
711517993112,3cyclictest0-21swapper/122:47:381
711514993126,4cyclictest837778-21kworker/u8:0+events_unbound23:33:510
711514993126,3cyclictest968419-21kthreadcore23:27:320
711514993126,3cyclictest31241-21kworker/u8:1+events_unbound20:20:380
711514993120,8cyclictest728239-21latency_hist19:25:000
711522993024,4cyclictest956956-21gpgv23:15:002
711517993022,6cyclictest281-21systemd-journal20:53:391
711514993026,3cyclictest837778-21kworker/u8:0+events_unbound00:19:270
711514993025,4cyclictest892664-21kworker/u8:1+events_unbound22:11:140
71151499302,26cyclictest947087-21kworker/0:2+events23:57:330
711522992925,3cyclictest753547-21latency_hist19:50:012
711522992921,6cyclictest882498-21apt-get22:00:002
711522992920,7cyclictest957819-21cpuspeed_turbos23:17:242
711522992918,8cyclictest1022194-21cp00:20:012
71151499292,26cyclictest947087-21kworker/0:2+events23:07:350
711514992911,16cyclictest3517630-21kworker/0:1+events20:02:260
711522992825,2cyclictest769224-21fschecks_count20:07:272
711517992822,4cyclictest972563-21aten2_r5power_v23:32:241
711514992824,3cyclictest837778-21kworker/u8:0+events_unbound21:54:240
71151499282,25cyclictest847742-21kworker/0:1+events22:28:530
711514992820,7cyclictest847701-21cron21:25:000
711514992819,7cyclictest932598-21/usr/sbin/munin22:52:380
71151499280,26cyclictest3517630-21kworker/0:1+events19:32:270
711517992721,5cyclictest936434-21kworker/u8:2+flush-8:022:55:441
711517992720,5cyclictest852409-21unixbench_singl21:27:411
71151499278,17cyclictest947087-21kworker/0:2+events00:37:250
711514992723,3cyclictest762730-21needreboot19:57:340
711514992710,4cyclictest0-21swapper/023:53:410
71151499270,11cyclictest8342782grep21:12:300
711522992622,3cyclictest912894-21aten2_r5power_c22:32:242
711522992622,2cyclictest1023359-21kthreadcore00:22:292
711522992621,3cyclictest1031620-21unixbench_multi00:27:422
711522992618,6cyclictest832807-21cron21:10:002
711517992621,4cyclictest966853-21unixbench_singl23:22:431
71151499269,15cyclictest3517630-21kworker/0:1+events20:37:350
71151499268,16cyclictest3517630-21kworker/0:1+events20:47:230
711514992618,6cyclictest892646-21latency_hist22:10:010
711522992520,3cyclictest711947-21aten2_r5power_p19:12:232
71152299250,23cyclictest728288-21munin-run19:25:002
71151499259,4cyclictest0-21swapper/022:30:470
71151499258,15cyclictest947087-21kworker/0:2+events00:32:230
711514992519,4cyclictest753189-21unixbench_singl19:47:410
711514992517,6cyclictest1016812-21latency_hist00:15:010
711522992421,2cyclictest971780-21unixbench_singl23:27:432
711522992421,2cyclictest808570-21aten2_r5power_p20:47:252
711514992420,2cyclictest743757-21kworker/u8:3+flush-8:019:42:440
711514992414,8cyclictest881715-21ntpq21:57:340
711522992319,3cyclictest783082-21unixbench_singl20:17:452
711522992318,4cyclictest893606-21cut22:12:282
711522992318,3cyclictest887679-21cron22:05:002
71151499235,15cyclictest947087-21kworker/0:2+events00:07:230
711514992319,2cyclictest0-21swapper/021:17:340
711514992318,3cyclictest0-21swapper/019:10:010
711522992219,2cyclictest923020-21fschecks_count22:42:262
711522992219,2cyclictest867451-21cron21:45:002
711522992219,2cyclictest768260-21unixbench_singl20:02:422
711522992217,3cyclictest281-21systemd-journal22:50:382
711517992218,2cyclictest0-21swapper/100:32:431
71151499224,15cyclictest3517630-21kworker/0:1+events19:52:370
711514992218,2cyclictest0-21swapper/000:27:420
711514992217,3cyclictest872114-21unixbench_multi21:47:390
71151499220,21cyclictest3517630-21kworker/0:1+events20:51:250
7067562224,6sleep10-21swapper/119:05:311
71152299213,2cyclictest9518042users23:07:452
71152299212,13cyclictest972450-21apt-get23:32:232
71152299211,9cyclictest10001832cut23:57:342
711522992117,2cyclictest888433-21fschecks_time22:07:272
711522992117,2cyclictest848479-21fschecks_time21:27:262
711522992116,3cyclictest827567-21unixbench_multi21:02:412
711522992115,4cyclictest842467-21unixbench_multi21:17:432
7784002200,7sleep2778381-21latency_hist20:15:012
711522992017,2cyclictest942674-21aten2_r5power_v23:02:252
711522992017,2cyclictest0-21swapper/219:30:002
711522992016,3cyclictest927770-21aten2_r5power_e22:47:232
711522992016,3cyclictest927770-21aten2_r5power_e22:47:232
711522992016,3cyclictest1037480-21cpuspeed_turbos00:37:242
711522992012,6cyclictest802558-21sshd20:37:402
711522992012,6cyclictest281-21systemd-journal23:54:592
711522992011,7cyclictest982391-21apt-get23:42:242
711522992010,2cyclictest0-21swapper/221:22:342
71151499204,14cyclictest3517630-21kworker/0:1+events20:57:230
71151499203,16cyclictest847742-21kworker/0:1+events22:22:190
711514992015,3cyclictest739721-21irqrtprio19:37:300
71152299192,13cyclictest818375-21apt-get20:57:242
711522991915,3cyclictest898248-21cpuspeed_turbos22:17:242
711522991915,2cyclictest858268-21fschecks_count21:37:262
711522991915,2cyclictest0-21swapper/222:30:002
711522991915,2cyclictest0-21swapper/221:12:342
711522991915,2cyclictest0-21swapper/200:12:392
711522991911,6cyclictest723312-21sendmail-msp19:20:002
711522991815,2cyclictest907463-21cron22:25:012
711522991814,3cyclictest763539-21cron20:00:002
711522991814,3cyclictest0-21swapper/223:37:312
711522991812,4cyclictest0-21swapper/219:52:442
71152299181,13cyclictest798128-21cron20:35:002
71152299180,5cyclictest8135542cut20:52:232
7068662184,10sleep20-21swapper/219:06:572
71152299178,7cyclictest1009743-21tr00:07:312
71152299173,4cyclictest0-21swapper/219:40:002
71152299172,9cyclictest747729-21ntpq19:42:342
711522991712,3cyclictest0-21swapper/223:50:002
711522991712,3cyclictest0-21swapper/223:50:002
71152299171,12cyclictest803545-21apt-get20:42:232
71152299171,12cyclictest803545-21apt-get20:42:232
711522991710,5cyclictest792416-21seq20:27:342
8076912167,5sleep30-21swapper/320:42:433
8076912167,5sleep30-21swapper/320:42:433
71152299168,6cyclictest938251-21sed22:57:302
71152299167,7cyclictest962907-21sort23:22:282
71152299167,7cyclictest1002439-21cut00:02:242
71152299162,2cyclictest0-21swapper/221:45:062
711522991612,2cyclictest0-21swapper/221:30:282
711522991611,3cyclictest0-21swapper/200:32:302
71152299161,11cyclictest787570-21ntpq20:22:372
10210402167,5sleep30-21swapper/300:17:373
8718972155,6sleep30-21swapper/321:47:393
9025272142,6sleep30-21swapper/322:20:013
9670472132,6sleep30-21swapper/323:25:013
9511912132,7sleep30-21swapper/323:07:353
8886362132,7sleep30-21swapper/322:07:293
8773162131,7sleep30-21swapper/321:55:013
8625022133,6sleep30-21swapper/321:40:013
8124222133,6sleep30-21swapper/320:47:413
7985412132,7sleep30-21swapper/320:37:213
7894072133,7sleep30-21swapper/320:27:303
7398862133,6sleep30-21swapper/319:37:313
7242232132,7sleep30-21swapper/319:22:323
10235622133,7sleep30-21swapper/300:22:313
9791692122,6sleep30-21swapper/323:37:333
9579222122,6sleep30-21swapper/323:17:263
9465302122,6sleep30-21swapper/323:02:423
9379332122,6sleep30-21swapper/322:57:283
9328682122,6sleep30-21swapper/322:52:283
9272682122,6sleep30-21swapper/322:45:013
9272682122,6sleep30-21swapper/322:45:013
9225962122,6sleep30-21swapper/322:40:393
9214872122,6sleep30-21swapper/322:37:343
9128792122,6sleep30-21swapper/322:32:253
9080642122,6sleep30-21swapper/322:27:273
8969342122,6sleep30-21swapper/322:12:393
8831002122,6sleep30-21swapper/322:01:393
8824502122,6sleep30-21swapper/321:59:353
8377452122,6sleep30-21swapper/321:15:013
8332552120,8sleep30-21swapper/321:12:243
8319022122,6sleep30-21swapper/321:07:353
8196492123,6sleep30-21swapper/320:57:323
7840052122,6sleep30-21swapper/320:22:253
7734262122,5sleep30-21swapper/320:10:013
7586252122,6sleep30-21swapper/319:55:003
7477992122,7sleep30-21swapper/319:42:373
7334482122,5sleep30-21swapper/319:30:013
7286922122,6sleep30-21swapper/319:25:033
7192792122,6sleep30-21swapper/319:17:293
10393812122,6sleep30-21swapper/300:37:313
10285672122,6sleep30-21swapper/300:27:323
10080072122,6sleep30-21swapper/300:07:313
10027912122,6sleep30-21swapper/300:02:283
9917912110,6sleep30-21swapper/323:50:003
9871282112,6sleep30-21swapper/323:45:273
9871282112,6sleep30-21swapper/323:45:273
9868262112,5sleep30-21swapper/323:44:393
9673212112,6sleep30-21swapper/323:25:293
9522842112,6sleep30-21swapper/323:10:483
9030032112,5sleep30-21swapper/322:22:223
8552452112,5sleep30-21swapper/321:32:343
8480852112,6sleep30-21swapper/321:27:093
8435812112,6sleep30-21swapper/321:22:323
7980502112,6sleep30-21swapper/320:34:043
7787202112,6sleep30-21swapper/320:16:393
7738392112,5sleep30-21swapper/320:12:223
7642472112,5sleep30-21swapper/320:02:273
7577632112,5sleep30-21swapper/319:52:363
7492202112,5sleep30-21swapper/319:47:263
7116592112,5sleep30-21swapper/319:10:033
10121362112,5sleep30-21swapper/300:10:313
10321272102,5sleep30-21swapper/300:30:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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