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2026-08-29 - 12:47

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 Sat Aug 29, 2026 00:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168510521520,2sleep3481ktimers/321:07:383
16667412800,2chrt575-21kworker/3:2-events20:47:553
1566619995243,6cyclictest1846720-21latency_hist23:50:011
17102352480,3sleep10-21swapper/121:32:401
1566619994335,6cyclictest275-21systemd-journal00:20:001
1566614994333,7cyclictest1816799-21apt-get23:20:010
156661499413,36cyclictest1643090-21kworker/0:0+events22:17:280
1566614994033,5cyclictest1707799-21latency_hist21:30:010
156661499403,35cyclictest1561604-21kworker/0:2+events19:37:430
156661499402,36cyclictest1643090-21kworker/0:0+events21:17:440
156661499402,36cyclictest1643090-21kworker/0:0+events20:57:340
156661499382,30cyclictest1767392-21kworker/0:1+events23:47:300
156661499382,30cyclictest1767392-21kworker/0:1+events00:02:300
156661499373,28cyclictest1603322-21kworker/0:1+events20:02:300
1566614993729,6cyclictest1638548-21/usr/sbin/munin20:22:480
156661499372,29cyclictest1603322-21kworker/0:1+events20:12:290
1566619993530,3cyclictest1657904-21munin-run20:40:001
156661499359,21cyclictest1767392-21kworker/0:1+events23:02:300
156661499353,30cyclictest1767392-21kworker/0:1+events22:37:300
156661499353,27cyclictest1643090-21kworker/0:0+events22:22:300
1566623993430,2cyclictest1837800-21irqcore23:42:362
1566619993428,4cyclictest1786829-21timerwakeupswit22:47:481
156661499343,29cyclictest1767392-21kworker/0:1+events00:37:440
1566614993425,7cyclictest275-21systemd-journal23:30:000
156661499342,30cyclictest1767392-21kworker/0:1+events23:12:320
156661499342,30cyclictest1767392-21kworker/0:1+events22:55:010
1566614993413,19cyclictest1643090-21kworker/0:0+events20:52:450
156661499341,28cyclictest1643090-21kworker/0:0+events21:37:170
156661499341,27cyclictest1643090-21kworker/0:0+events22:32:300
156661499341,27cyclictest1643090-21kworker/0:0+events22:32:300
1566619993327,4cyclictest275-21systemd-journal20:41:461
1566614993328,3cyclictest1806654-21unixbench_singl23:07:510
156661499332,29cyclictest1561604-21kworker/0:2+events19:47:330
156661499331,31cyclictest1643090-21kworker/0:0+events21:06:290
156661499331,30cyclictest1643090-21kworker/0:0+events21:42:480
156661499331,27cyclictest785358-21kworker/0:0+events19:12:240
156661499331,27cyclictest1767392-21kworker/0:1+events00:05:040
1566614993311,20cyclictest1643090-21kworker/0:0+events20:42:450
156661499330,27cyclictest1561604-21kworker/0:2+events19:30:500
1566623993221,9cyclictest1593456-21cat19:35:012
1566619993228,2cyclictest0-21swapper/123:40:001
1566619993225,5cyclictest1722638-21kworker/u8:2+flush-8:022:17:331
1566619993224,6cyclictest1677914-21apt-get21:00:011
1566619993223,7cyclictest1593157-21latency_hist19:35:011
156661499327,20cyclictest1767392-21kworker/0:1+events00:20:300
1566614993223,6cyclictest275-21systemd-journal20:20:010
156661499322,29cyclictest1767392-21kworker/0:1+events22:42:450
156661499322,29cyclictest1767392-21kworker/0:1+events00:27:410
156661499322,28cyclictest1767392-21kworker/0:1+events00:17:460
15618722324,9sleep10-21swapper/119:06:051
1566623993126,4cyclictest1504117-21kworker/u8:2+flush-8:019:27:482
1566619993127,3cyclictest1789743-21kthreadcore22:52:411
1566619993126,3cyclictest1856636-21unixbench_singl23:57:501
1566619993126,3cyclictest1767362-21cron22:30:001
1566619993124,6cyclictest1738214-21aten2_r5power_e22:02:311
1566619993123,6cyclictest275-21systemd-journal00:35:001
156661499318,22cyclictest1643090-21kworker/0:0+events22:12:460
156661499316,23cyclictest1643090-21kworker/0:0+events20:32:380
156661499312,27cyclictest1643090-21kworker/0:0+events21:52:380
156661499312,27cyclictest1643090-21kworker/0:0+events20:47:540
156661499312,27cyclictest1643090-21kworker/0:0+events20:37:330
156661499311,29cyclictest1643090-21kworker/0:0+events22:29:180
156661499311,28cyclictest1767392-21kworker/0:1+events23:57:420
156661499311,28cyclictest1767392-21kworker/0:1+events23:52:460
1566614993110,15cyclictest1561604-21kworker/0:2+events19:27:300
1566623993027,2cyclictest1737466-21ls22:00:002
1566619993026,3cyclictest1743810-21irqrtprio22:07:371
1566619993026,3cyclictest1723167-21aten2_r5power_v21:47:311
1566619993023,5cyclictest1618089-21cron20:00:001
1566619993022,6cyclictest1713475-21fschecks_time21:37:341
156661499307,22cyclictest1643090-21kworker/0:0+events21:22:300
156661499306,23cyclictest1643090-21kworker/0:0+events21:47:420
156661499306,22cyclictest1643090-21kworker/0:0+events22:07:320
1566614993025,3cyclictest1890697-21needreboot00:32:430
1566614993025,3cyclictest1832557-21cpuspeed_turbos23:37:320
1566614993023,5cyclictest1782732-21grep22:47:310
1566614993011,17cyclictest1643090-21kworker/0:0+events21:57:420
1566614993010,15cyclictest1643090-21kworker/0:0+events21:00:140
18261212290,3sleep3575-21kworker/3:2+events23:27:433
1566623992922,5cyclictest1637890-21apt-get20:20:012
1566623992917,10cyclictest1598368-21awk19:40:002
1566619992926,2cyclictest1782213-21cron22:45:011
1566619992926,2cyclictest1735128-21kthreadcore21:57:391
1566619992926,2cyclictest1700519-21kthreadcore21:22:391
1566619992925,3cyclictest1722608-21cron21:45:001
1566619992924,4cyclictest1822428-21aten2_r5power_c23:27:331
1566619992924,3cyclictest1688822-21fschecks_time21:12:331
1566619992923,5cyclictest1593131-21kworker/u8:0+flush-8:019:47:471
1566619992921,6cyclictest1648446-21apt-get20:32:311
1566619992921,6cyclictest1633360-21/usr/sbin/munin20:17:481
1566614992911,17cyclictest1767392-21kworker/0:1+events22:57:380
1566614992910,18cyclictest1643090-21kworker/0:0+events22:04:380
156661499290,27cyclictest1603322-21kworker/0:1+events19:57:440
18338432280,6sleep20-21swapper/223:37:382
1566623992824,2cyclictest1713176-21aten2_r5power_c21:37:322
1566623992824,2cyclictest1682843-21unixbench_multi21:02:532
1566623992820,6cyclictest275-21systemd-journal22:27:472
1566619992824,3cyclictest1632681-21unixbench_multi20:12:481
1566619992824,2cyclictest0-21swapper/123:05:001
1566619992823,3cyclictest1707784-21cron21:30:001
1566619992823,3cyclictest0-21swapper/119:30:011
1566619992822,4cyclictest1862295-21apt-get00:07:311
1566619992820,6cyclictest275-21systemd-journal19:38:461
156661499288,15cyclictest1561604-21kworker/0:2+events19:20:220
1566614992810,16cyclictest1603322-21kworker/0:1+events20:07:340
1566623992724,2cyclictest1792603-21aten2_r5power_p22:57:322
1566623992723,3cyclictest1866752-21cron00:10:002
1566619992724,2cyclictest0-21swapper/123:45:001
1566619992723,2cyclictest0-21swapper/123:17:411
1566619992723,2cyclictest0-21swapper/122:12:481
1566619992721,4cyclictest1896408-21idleruntime-cro00:40:001
1566619992720,5cyclictest1831905-21latency_hist23:35:011
156661499279,16cyclictest1643090-21kworker/0:0+events21:12:400
156661499277,19cyclictest1603322-21kworker/0:1+events19:54:450
1566614992719,6cyclictest1816797-21latency_hist23:20:010
1566614992711,15cyclictest1561604-21kworker/0:2+events19:17:520
1566614992711,14cyclictest1561604-21kworker/0:2+events19:42:420
1566623992623,2cyclictest1574124-21fschecks_count19:17:332
1566623992622,2cyclictest1623605-21aten2_r5power_v20:07:322
1566619992622,3cyclictest1578402-21kworker/u8:1+events_unbound21:07:441
1566619992621,3cyclictest1682851-21unixbench_multi21:02:531
1566619992618,7cyclictest1573947-21aten2_r5power_v19:17:311
1566619992618,6cyclictest275-21systemd-journal22:23:461
156661499268,16cyclictest1767392-21kworker/0:1+events23:42:320
156661499267,18cyclictest1643090-21kworker/0:0+events20:27:500
1566614992617,7cyclictest1708206-21/usr/sbin/munin21:32:430
1566623992522,2cyclictest1723344-21fschecks_count21:47:332
1566623992522,2cyclictest1662271-21tail20:42:412
1566623992521,3cyclictest1618824-21fschecks_count20:02:342
1566623992520,4cyclictest1757504-21kworker/u8:0+flush-8:022:32:472
1566623992520,4cyclictest1757504-21kworker/u8:0+flush-8:022:32:472
1566623992510,2cyclictest16511532cut20:32:412
1566619992522,2cyclictest1566608-21cyclictest00:22:411
1566619992521,2cyclictest0-21swapper/120:05:001
1566619992520,3cyclictest401-21dbus-daemon19:25:001
1566619992520,3cyclictest0-21swapper/122:57:341
1566619992518,5cyclictest1817568-21wget23:22:321
156661499258,14cyclictest1767392-21kworker/0:1+events00:11:030
156661499257,17cyclictest1767392-21kworker/0:1+events23:32:500
156662399246,3cyclictest17581092cpuspeed_turbos22:22:322
1566623992421,2cyclictest1777957-21fschecks_count22:42:332
1566623992420,2cyclictest1653535-21aten2_r5power_v20:37:322
1566623992419,3cyclictest1663631-21aten2_r5power_p20:47:322
1566623992416,6cyclictest1856893-40gzip00:00:002
1566619992420,3cyclictest0-21swapper/120:22:331
1566619992420,2cyclictest0-21swapper/100:27:481
1566619992420,2cyclictest0-21swapper/100:12:341
1566619992419,3cyclictest1628082-21latency_hist20:10:001
1566619992417,5cyclictest275-21systemd-journal22:30:471
1566619992417,5cyclictest275-21systemd-journal22:30:471
18319272230,6chrt0-21swapper/223:35:012
1566623992320,2cyclictest1743308-21cpuspeed_turbos22:07:322
1566623992320,2cyclictest1688557-21aten2_r5power_p21:12:312
1566623992310,9cyclictest1877119-21apt-get00:22:312
1566619992319,2cyclictest1610827-21kthreadcore19:52:391
1566619992319,2cyclictest0-21swapper/123:52:431
1566619992319,2cyclictest0-21swapper/121:52:461
1566619992319,2cyclictest0-21swapper/120:27:431
17890062220,10sleep30-21swapper/322:52:403
1566623992219,2cyclictest1887099-21aten2_r5power_v00:32:332
1566623992219,2cyclictest1638839-21fschecks_count20:22:342
1566623992218,2cyclictest1822710-21fschecks_time23:27:352
1566623992218,2cyclictest1698585-21cpuspeed_turbos21:22:322
1566623992218,2cyclictest1613661-21aten2_r5power_e19:57:322
1566623992216,4cyclictest1876660-21sendmail00:20:002
1566623992212,8cyclictest275-21systemd-journal00:30:002
156661999228,5cyclictest0-21swapper/120:49:121
156661999226,3cyclictest161rcu_preempt19:45:001
1566619992218,2cyclictest0-21swapper/122:37:341
156662399216,3cyclictest17757502cut22:37:402
156662399212,5cyclictest0-21swapper/220:27:462
156662399212,14cyclictest1566943-21apt-get19:12:312
1566623992118,2cyclictest1847385-21cpuspeed_turbos23:52:322
1566623992118,2cyclictest1612931-21unixbench_singl19:52:492
1566623992117,2cyclictest0-21swapper/221:00:012
1566623992116,3cyclictest1732259-21unixbench_multi21:52:492
1566619992118,2cyclictest0-21swapper/100:02:481
1566619992117,2cyclictest0-21swapper/123:12:361
1566619992117,2cyclictest0-21swapper/120:52:311
1566619992117,2cyclictest0-21swapper/119:12:351
1566619992110,9cyclictest1693432-21apt-get21:17:311
17957502200,2sleep3575-21kworker/3:2+events22:57:423
1566623992017,2cyclictest1797583-21aten2_r5power_v23:02:332
1566623992015,3cyclictest1786919-21unixbench_singl22:47:492
1566623992015,3cyclictest0-21swapper/223:50:002
1566623992014,5cyclictest0-21swapper/200:05:002
1566623992012,5cyclictest275-21systemd-journal23:25:002
1566619992013,5cyclictest1806653-21unixbench_singl23:07:511
156662399192,12cyclictest1718121-21apt-get21:42:322
1566623991914,4cyclictest1668037-21kworker/u8:0+flush-8:020:52:522
1566623991913,4cyclictest0-21swapper/223:20:012
156662399191,16cyclictest1753860-21sed22:17:362
15662042193,9sleep30-21swapper/319:07:523
15616202194,9sleep20-21swapper/219:05:022
173683921810,5sleep30-21swapper/321:57:473
156662399189,7cyclictest1789538-21tr22:52:412
156662399182,11cyclictest1738157-21apt-get22:02:302
1566623991814,2cyclictest0-21swapper/223:12:452
1566623991814,2cyclictest0-21swapper/220:12:352
15662902182,10sleep00-21swapper/019:08:130
17480282172,10sleep30-21swapper/322:12:323
156662399179,6cyclictest1607953-21unixbench_multi19:47:492
156662399177,8cyclictest1706455-21tr21:27:382
156662399175,4cyclictest0-21swapper/221:32:422
156662399172,11cyclictest1806177-21ntpq23:07:452
1566623991714,2cyclictest0-21swapper/200:40:002
156662399171,12cyclictest1748025-21apt-get22:12:322
180718221610,4sleep30-21swapper/323:11:073
156662399167,7cyclictest1870211-21tr00:12:402
156662399162,13cyclictest0-21swapper/219:24:582
1566623991613,2cyclictest0-21swapper/221:05:582
1566623991612,2cyclictest0-21swapper/219:42:472
17430932156,6sleep30-21swapper/322:07:303
1566623991510,3cyclictest0-21swapper/221:17:382
17714262132,7sleep30-21swapper/322:32:423
17714262132,7sleep30-21swapper/322:32:413
17169342132,7sleep30-21swapper/321:37:453
16423142132,7sleep30-21swapper/320:22:443
15833612132,6sleep30-21swapper/319:25:023
15825842132,7sleep30-21swapper/319:22:453
15677012134,5sleep30-21swapper/319:12:383
18963982122,7sleep30-21swapper/300:40:003
18870732122,6sleep30-21swapper/300:32:333
18821172122,6sleep30-21swapper/300:27:323
18767042122,5sleep30-21swapper/300:20:013
18720982122,6sleep30-21swapper/300:17:003
18586382122,6sleep30-21swapper/300:02:403
18564282122,6sleep30-21swapper/323:57:503
18323672122,6sleep30-21swapper/323:37:323
18309952122,6sleep30-21swapper/323:32:423
18163082122,6sleep30-21swapper/323:17:493
17974742122,6sleep30-21swapper/323:02:323
17870212122,6sleep30-21swapper/322:48:363
17782172122,6sleep30-21swapper/322:42:383
17618082122,6sleep30-21swapper/322:22:473
17525162122,5sleep30-21swapper/322:15:013
17379602122,6sleep30-21swapper/322:00:163
17321482122,6sleep30-21swapper/321:52:503
17234792122,6sleep30-21swapper/321:47:363
17177082122,5sleep30-21swapper/321:40:013
17070202122,6sleep30-21swapper/321:27:413
17022882122,6sleep30-21swapper/321:22:483
16930082122,5sleep30-21swapper/321:15:013
16737902122,6sleep30-21swapper/320:57:363
16599622122,6sleep30-21swapper/320:42:393
16574092123,6sleep30-21swapper/320:37:493
16523222122,6sleep30-21swapper/320:32:483
16437482122,6sleep30-21swapper/320:27:343
16375972122,6sleep30-21swapper/320:17:513
16190762122,6sleep30-21swapper/320:02:383
16084382122,5sleep30-21swapper/319:50:023
16032842122,6sleep30-21swapper/319:45:003
15890262122,6sleep30-21swapper/319:32:363
15718032122,5sleep30-21swapper/319:15:023
18670252112,6sleep30-21swapper/300:10:303
18620852112,5sleep30-21swapper/300:05:083
18471302112,6sleep30-21swapper/323:52:283
18420662112,6sleep30-21swapper/323:45:463
18377922112,6sleep30-21swapper/323:42:373
18169692110,6sleep30-21swapper/323:20:023
18028522111,6sleep30-21swapper/323:07:383
17726202112,6sleep30-21swapper/322:35:563
17629322112,5sleep30-21swapper/322:27:333
17084772112,6sleep30-21swapper/321:32:353
16884202112,6sleep30-21swapper/321:12:083
16786062112,5sleep30-21swapper/321:02:333
16282872112,6sleep30-21swapper/320:10:443
16238632112,5sleep30-21swapper/320:07:353
16139862112,6sleep30-21swapper/319:57:363
16035302112,6sleep30-21swapper/319:45:083
15937852112,6sleep30-21swapper/319:37:183
16682502102,5sleep30-21swapper/320:50:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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