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2026-05-28 - 02:51

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 Thu May 28, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
189252721880,3sleep375-21kworker/3:1+events21:10:483
181796221590,2sleep3471rcuc/319:55:483
1769256998473,8cyclictest1924755-21kworker/u8:2+flush-8:023:55:561
1769256997065,3cyclictest1737170-21kworker/u8:3+events_unbound19:25:511
1769256997058,10cyclictest1869499-21ntpq20:45:561
1769254996965,3cyclictest1769092-21kworker/u8:0+events_unbound19:55:570
1769256996861,4cyclictest1890044-21kworker/u8:1+events_unbound22:50:431
1769256996861,4cyclictest1890044-21kworker/u8:1+events_unbound22:50:431
1769254996864,3cyclictest1945299-21kworker/u8:0+events_unbound22:15:510
1769256996755,9cyclictest1704890-21systemd-journal19:15:011
1769256996661,4cyclictest2079158-21kworker/u8:2+events_unbound00:30:521
1769256996660,4cyclictest2009693-21kworker/u8:3+flush-8:023:35:571
1769256996559,5cyclictest1737170-21kworker/u8:3+events_unbound19:35:591
1769256996559,4cyclictest1924755-21kworker/u8:2+flush-8:022:00:551
1769256996554,8cyclictest2079476-21latency_hist00:20:011
1769254996561,3cyclictest1870523-21kworker/u8:2+events_unbound21:30:570
1769256996460,3cyclictest1975108-21kworker/u8:3+flush-8:022:45:591
1769256996458,5cyclictest2000356-21kworker/u8:0+flush-8:023:25:561
1769256996456,6cyclictest1945299-21kworker/u8:0+events_unbound22:30:571
1769254996461,2cyclictest2000356-21kworker/u8:0+events_unbound23:25:550
1769254996460,3cyclictest1865382-21kworker/u8:0+events_unbound21:00:580
1769254996459,4cyclictest1737170-21kworker/u8:3+events_unbound19:25:420
1769256996357,4cyclictest1865382-21kworker/u8:0+events_unbound21:15:531
1769254996359,3cyclictest1924755-21kworker/u8:2+events_unbound22:35:560
1769254996359,3cyclictest1890044-21kworker/u8:1+events_unbound21:40:570
1769256996257,4cyclictest2000356-21kworker/u8:0+flush-8:023:15:551
1769256996256,5cyclictest1909828-21kworker/u8:3+events_unbound21:45:551
1769256996256,4cyclictest2059715-21kworker/u8:1+events_unbound00:20:541
1769254996258,3cyclictest2079158-21kworker/u8:2+events_unbound00:30:420
1769254996258,3cyclictest2009693-21kworker/u8:3+events_unbound23:10:410
1769254996258,3cyclictest2009693-21kworker/u8:3+events_unbound23:10:400
1769254996258,3cyclictest1945299-21kworker/u8:0+events_unbound22:10:430
1769254996254,6cyclictest1964167-21ntpq22:20:520
1769254996254,3cyclictest1737170-21kworker/u8:3+events_unbound19:20:420
19697682610,3sleep375-21kworker/3:1+events22:26:003
1769254996157,3cyclictest2089853-21kworker/u8:3+events_unbound00:35:560
1769254996157,3cyclictest2009693-21kworker/u8:3+events_unbound23:35:410
1769254996157,3cyclictest1924755-21kworker/u8:2+events_unbound23:45:520
1769254996157,3cyclictest1769092-21kworker/u8:0+events_unbound19:40:580
1769254996056,3cyclictest1890044-21kworker/u8:1+events_unbound21:55:400
19746542590,6chrt0-21swapper/222:30:552
1769256995954,4cyclictest2040133-21kworker/u8:0+flush-8:000:06:001
1769256995954,3cyclictest1865382-21kworker/u8:0+events_unbound21:25:531
1769254995955,3cyclictest1737177-21kworker/u8:4+events_unbound20:10:420
1769254995955,3cyclictest1737177-21kworker/u8:4+events_unbound20:10:410
1769260995839,17cyclictest1970465-21cp22:30:012
1769256995854,3cyclictest1945299-21kworker/u8:0+events_unbound22:15:531
1769256995853,3cyclictest1769092-21kworker/u8:0+events_unbound19:40:421
1769256995753,3cyclictest2009693-21kworker/u8:3+events_unbound23:10:521
1769256995753,3cyclictest2009693-21kworker/u8:3+events_unbound23:10:511
1769256995752,4cyclictest1835883-21kworker/u8:0+events_unbound20:15:541
1769256995752,3cyclictest2009693-21kworker/u8:3+flush-8:023:50:531
1769256995752,3cyclictest2000356-21kworker/u8:0+flush-8:023:20:581
1769256995751,4cyclictest1975108-21kworker/u8:3+flush-8:022:40:521
1769254995753,3cyclictest1835883-21kworker/u8:0+events_unbound20:20:430
1769254995753,3cyclictest1769092-21kworker/u8:0+events_unbound19:50:430
1769256995649,5cyclictest1890044-21kworker/u8:1+events_unbound21:40:531
1769256995648,5cyclictest1924755-21kworker/u8:2+events_unbound23:30:431
1769254995652,3cyclictest2009693-21kworker/u8:3+events_unbound00:06:020
1769254995652,3cyclictest1945299-21kworker/u8:0+events_unbound22:25:030
1769254995652,3cyclictest1909828-21kworker/u8:3+events_unbound21:45:410
1769254995652,3cyclictest1865382-21kworker/u8:0+events_unbound21:26:000
1769254995652,3cyclictest1865382-21kworker/u8:0+events_unbound21:05:460
1769254995652,3cyclictest1850749-21kworker/u8:1+events_unbound20:36:010
1769254995647,3cyclictest1737170-21kworker/u8:3+events_unbound20:05:440
17933232550,3sleep375-21kworker/3:1-events19:30:473
1769256995551,3cyclictest1870523-21kworker/u8:2+events_unbound21:30:411
1769256995550,3cyclictest2040133-21kworker/u8:0+events_unbound00:10:511
1769256995549,5cyclictest1737170-21kworker/u8:3+flush-8:019:30:521
1769254995551,3cyclictest2000356-21kworker/u8:0+events_unbound23:15:590
1769254995551,3cyclictest1924755-21kworker/u8:2+events_unbound23:30:470
1769254995551,3cyclictest1924755-21kworker/u8:2+events_unbound22:40:560
1769254995551,3cyclictest1835883-21kworker/u8:0+events_unbound20:25:460
1769256995450,3cyclictest1890044-21kworker/u8:1+flush-8:021:20:441
1769256995450,3cyclictest1865382-21kworker/u8:0+events_unbound21:00:541
1769256995450,3cyclictest1769092-21kworker/u8:0+events_unbound19:55:411
1769256995450,3cyclictest1737177-21kworker/u8:4+flush-8:020:31:001
1769256995450,3cyclictest1737177-21kworker/u8:4+events_unbound19:10:461
1769256995449,4cyclictest1865382-21kworker/u8:0+flush-8:021:10:541
1769256995448,4cyclictest1924755-21kworker/u8:2+events_unbound22:20:541
1769254995450,3cyclictest2000356-21kworker/u8:0+events_unbound23:20:450
1769256995348,4cyclictest1737177-21kworker/u8:4+flush-8:020:10:541
1769256995348,4cyclictest1737177-21kworker/u8:4+flush-8:020:10:531
1769256995347,4cyclictest1737170-21kworker/u8:3+flush-8:020:00:551
1769256995345,6cyclictest1890044-21kworker/u8:1+flush-8:021:50:531
1769254995350,2cyclictest1870523-21kworker/u8:2+events_unbound21:35:040
1769254995349,3cyclictest1769092-21kworker/u8:0+events_unbound19:45:590
1769256995244,6cyclictest1924755-21kworker/u8:2+flush-8:022:10:571
1769256995243,7cyclictest1844761-21ntpq20:20:571
1769254995248,3cyclictest2040133-21kworker/u8:0+events_unbound00:11:020
1769260995141,7cyclictest1704890-21systemd-journal21:55:012
1769256995147,3cyclictest1924755-21kworker/u8:2+flush-8:022:25:441
1769256995147,3cyclictest1865382-21kworker/u8:0+flush-8:021:05:581
1769256995146,4cyclictest2040133-21kworker/u8:0+events_unbound00:00:561
1769254995147,3cyclictest1890044-21kworker/u8:1+events_unbound22:05:450
1769254995147,3cyclictest1769092-21kworker/u8:0+events_unbound19:36:030
1769256995046,3cyclictest2089853-21kworker/u8:3+flush-8:000:35:531
1769256995045,4cyclictest1909828-21kworker/u8:3+events_unbound21:35:591
1769256995045,3cyclictest1737170-21kworker/u8:3+events_unbound19:45:521
1769254995047,2cyclictest1769092-21kworker/u8:0+events_unbound19:16:150
1769254995046,3cyclictest1865382-21kworker/u8:0+events_unbound20:50:010
1769254995044,4cyclictest1890044-21kworker/u8:1+events_unbound21:50:580
1769256994944,4cyclictest1870523-21kworker/u8:2+events_unbound20:55:581
1769256994944,3cyclictest1737177-21kworker/u8:4+events_unbound20:35:561
1769254994944,4cyclictest1924755-21kworker/u8:2+events_unbound23:05:460
1769256994843,3cyclictest1737170-21kworker/u8:3+flush-8:020:25:591
1769254994844,3cyclictest2009693-21kworker/u8:3+events_unbound23:59:520
1769256994741,5cyclictest1924755-21kworker/u8:2+flush-8:023:45:551
1769254994743,3cyclictest1870523-21kworker/u8:2+events_unbound20:55:530
1769256994642,3cyclictest1924755-21kworker/u8:2+flush-8:023:05:011
1769256994641,4cyclictest1737170-21kworker/u8:3+events_unbound20:05:511
1769254994642,3cyclictest1737170-21kworker/u8:3+events_unbound20:00:590
1769256994540,4cyclictest1850749-21kworker/u8:1+events_unbound20:40:421
1769256994540,4cyclictest1737170-21kworker/u8:3+flush-8:019:20:461
1769254994541,3cyclictest1924755-21kworker/u8:2+events_unbound22:34:520
1769256994439,4cyclictest1975108-21kworker/u8:3+flush-8:022:55:541
1769254994440,3cyclictest2040133-21kworker/u8:0+events_unbound00:04:520
1769254994440,3cyclictest1865382-21kworker/u8:0+events_unbound21:11:020
1769256994338,3cyclictest1924755-21kworker/u8:2+flush-8:023:40:501
1769254994339,3cyclictest2079158-21kworker/u8:2+events_unbound00:18:140
1769254994339,3cyclictest2059715-21kworker/u8:1+events_unbound00:24:520
1769254994339,3cyclictest2009693-21kworker/u8:3+events_unbound23:50:500
1769254994339,3cyclictest1924755-21kworker/u8:2+events_unbound23:04:520
1769260994231,9cyclictest1945011-21journal-offline22:01:412
1769260994231,8cyclictest1880211-21apt20:59:592
1769256994237,3cyclictest1975108-21kworker/u8:3+flush-8:022:35:481
1769254994238,3cyclictest1890044-21kworker/u8:1+events_unbound21:23:510
1769254994238,3cyclictest1835883-21kworker/u8:0+events_unbound20:16:510
1769256994137,3cyclictest1769092-21kworker/u8:0+events_unbound19:50:451
1769254994138,2cyclictest1737170-21kworker/u8:3+events_unbound19:31:170
1769254994137,3cyclictest1975108-21kworker/u8:3+events_unbound22:53:510
1769254994137,3cyclictest1975108-21kworker/u8:3+events_unbound22:53:510
1769254994137,3cyclictest1870523-21kworker/u8:2+events_unbound20:51:340
1769260994029,8cyclictest2075088-21diskstats00:15:442
1769256994036,3cyclictest1890044-21kworker/u8:1+events_unbound22:05:411
1769256994033,6cyclictest1865382-21kworker/u8:0+events_unbound20:50:521
1769254994037,2cyclictest1865382-21kworker/u8:0+events_unbound21:16:500
1769254994037,2cyclictest1850749-21kworker/u8:1+events_unbound20:32:390
1769254994036,3cyclictest2059715-21kworker/u8:1+events_unbound00:28:210
1769254994036,3cyclictest2059715-21kworker/u8:1+events_unbound00:28:200
17687272404,9sleep20-21swapper/219:06:002
1769260993915,9cyclictest1955174-21cat22:15:002
1769254993936,2cyclictest1890044-21kworker/u8:1+events_unbound22:46:520
1769254993935,3cyclictest1890044-21kworker/u8:1+events_unbound22:57:510
176684623924,10sleep01767951-21cut19:05:490
1769260993823,13cyclictest2024682-21unixbench_multi23:21:002
1769254993835,2cyclictest1924755-21kworker/u8:2+events_unbound22:01:020
1769254993834,3cyclictest1737177-21kworker/u8:4+events_unbound20:43:290
1769254993834,3cyclictest1737177-21kworker/u8:4+events_unbound19:12:410
1769254993833,4cyclictest1924755-21kworker/u8:2+events_unbound23:40:300
1769260993727,8cyclictest1704890-21systemd-journal00:29:502
1769260993727,8cyclictest1704890-21systemd-journal00:29:492
1769260993721,14cyclictest2055288-21fschecks_count23:55:422
1769260993721,13cyclictest2029589-21unixbench_multi23:25:562
1769260993717,18cyclictest1704890-21systemd-journal00:25:002
176926099362,13cyclictest1870591-21apt-get20:50:402
1769260993525,8cyclictest1864941-21unixbench_multi20:40:592
1769260993517,16cyclictest1795713-21unixbench_singl19:30:592
1769260993424,7cyclictest1704890-21systemd-journal19:55:002
1769260993417,15cyclictest2000115-21sendmail23:00:002
1769256993430,3cyclictest1924755-21kworker/u8:2+events_unbound21:55:461
176926099339,3cyclictest19261312tr21:45:452
176926099333,8cyclictest2035244-21apt-get23:35:402
176926099332,12cyclictest2059992-21apt-get00:00:412
1769260993318,13cyclictest1935748-21aten2_r5power_p21:55:412
1769260993315,2cyclictest0-21swapper/223:10:012
176926099331,12cyclictest1826088-21apt-get20:05:412
176926099328,10cyclictest1774242-21cp19:15:002
176926099322,13cyclictest2040201-21apt-get23:40:402
176926099321,12cyclictest2064973-21apt-get00:05:422
176926099319,8cyclictest1704890-21systemd-journal23:55:002
176926099312,7cyclictest1845853-21apt-get20:25:392
1769260993124,5cyclictest1950216-21cat22:10:002
1769260993121,9cyclictest1915339-21gpgv21:35:002
1769260993117,12cyclictest0-21swapper/222:25:002
1769260993113,2cyclictest0-21swapper/221:20:502
176926099311,14cyclictest1791158-21idleruntime-cro19:30:002
176926099302,8cyclictest1880211-21apt-get21:00:032
1769256993024,4cyclictest2085011-21apt-get00:25:391
1769256993024,4cyclictest2085011-21apt-get00:25:381
1769256993022,6cyclictest1704890-21systemd-journal23:05:501
176926099299,7cyclictest1992442-21tr22:50:482
176926099299,7cyclictest1992442-21tr22:50:482
1769260992913,3cyclictest0-21swapper/220:15:492
1769260992912,2cyclictest0-21swapper/221:25:402
176926099286,2cyclictest0-21swapper/220:30:392
176926099283,7cyclictest2010525-21apt-get23:10:402
176926099283,7cyclictest2010525-21apt-get23:10:392
176926099262,7cyclictest1821130-21apt-get20:00:392
1769260992621,3cyclictest1841019-21aten2_r5power_v20:20:412
1769260992611,3cyclictest0-21swapper/220:10:502
1769260992611,3cyclictest0-21swapper/220:10:492
1769260992522,2cyclictest1885960-21fschecks_count21:05:452
176926099247,2cyclictest19160272if_enp3s021:35:462
1769260992420,2cyclictest1866008-21fschecks_time20:45:442
18671072230,3sleep375-21kworker/3:1-events20:45:483
1769260992320,2cyclictest1960119-21idleruntime-cro22:19:592
176926099212,13cyclictest1801375-21apt-get19:40:422
1769260992112,7cyclictest1704890-21systemd-journal23:20:002
17688122214,11sleep10-21swapper/119:06:511
1769260992016,3cyclictest2070256-21fschecks_time00:10:452
1769260992016,2cyclictest0-21swapper/221:20:012
1769260992016,2cyclictest0-21swapper/220:00:002
1769260992015,4cyclictest1774619-21kthreadcore19:15:022
176926099200,8cyclictest19795442cat22:35:532
19150622197,8sleep30-21swapper/321:35:003
1769260991915,2cyclictest1890766-21aten2_r5power_v21:10:402
1769260991915,2cyclictest1796726-21fschecks_time19:35:452
176926099191,13cyclictest2000424-21apt-get23:00:402
1769260991815,2cyclictest1980723-21aten2_r5power_c22:40:412
1769260991813,3cyclictest0-21swapper/220:36:002
1769260991813,3cyclictest0-21swapper/200:35:502
17690032183,9sleep30-21swapper/319:09:223
1769260991713,3cyclictest0-21swapper/223:30:592
1769260991713,2cyclictest0-21swapper/223:50:012
1769260991711,4cyclictest0-21swapper/221:40:512
1769260991612,2cyclictest0-21swapper/222:45:482
1769260991612,2cyclictest0-21swapper/219:49:452
1769260991612,2cyclictest0-21swapper/219:20:522
1769260991512,2cyclictest0-21swapper/200:30:422
20709512133,6sleep30-21swapper/300:10:503
20550282132,7sleep30-21swapper/323:55:413
20074412132,7sleep30-21swapper/323:05:493
19406212132,7sleep30-21swapper/322:00:403
18704852132,6sleep30-21swapper/320:50:023
18653472132,7sleep30-21swapper/320:45:013
18049392132,7sleep30-21swapper/319:40:523
20846862122,6sleep30-21swapper/300:24:513
20689702122,6sleep30-21swapper/300:06:013
20599192122,5sleep30-21swapper/300:00:023
20547142122,5sleep30-21swapper/323:55:013
20449102122,6sleep30-21swapper/323:45:023
20303132121,7sleep30-21swapper/323:30:413
20254002122,6sleep30-21swapper/323:25:403
20204132122,6sleep30-21swapper/323:20:383
20157882122,6sleep30-21swapper/323:15:453
20110512122,6sleep30-21swapper/323:10:473
20110512122,6sleep30-21swapper/323:10:473
20009482122,6sleep30-21swapper/323:00:473
19994682122,6sleep30-21swapper/322:55:583
19861002122,6sleep30-21swapper/322:45:473
19760612122,6sleep30-21swapper/322:35:433
19735632122,6sleep30-21swapper/322:30:503
19609182122,6sleep30-21swapper/322:20:473
19510342122,6sleep30-21swapper/322:10:483
19453292122,6sleep30-21swapper/322:05:023
19244632122,6sleep30-21swapper/321:40:583
18956172122,6sleep30-21swapper/321:15:413
18847242122,6sleep30-21swapper/321:00:573
18560652122,6sleep30-21swapper/320:35:463
18507892122,6sleep30-21swapper/320:30:393
18456032122,6sleep30-21swapper/320:25:023
18455272122,6sleep30-21swapper/320:24:503
18313952122,6sleep30-21swapper/320:10:463
18313952122,6sleep30-21swapper/320:10:463
18260622122,6sleep30-21swapper/320:05:403
18211022122,6sleep30-21swapper/320:00:383
18148122122,6sleep30-21swapper/319:50:513
18066922122,6sleep30-21swapper/319:45:453
17813102122,5sleep30-21swapper/319:20:023
17774902122,6sleep30-21swapper/319:15:473
20948102112,6sleep30-21swapper/300:35:063
20936662112,5sleep30-21swapper/300:30:523
20895112112,6sleep30-21swapper/300:28:443
20895112112,6sleep30-21swapper/300:28:433
20784322112,5sleep30-21swapper/300:15:513
20401762112,5sleep30-21swapper/323:40:403
20351732112,5sleep30-21swapper/323:35:033
19905062112,6sleep30-21swapper/322:50:373
19905062112,6sleep30-21swapper/322:50:363
19804122111,5sleep30-21swapper/322:40:013
19551562111,5sleep30-21swapper/322:15:013
19359112112,5sleep30-21swapper/321:55:433
19324272112,5sleep30-21swapper/321:50:503
19254902112,6sleep30-21swapper/321:45:193
19193432112,5sleep30-21swapper/321:35:533
19052312112,5sleep30-21swapper/321:25:013
19005412112,5sleep30-21swapper/321:20:403
18876152112,5sleep30-21swapper/321:05:513
18755032112,5sleep30-21swapper/320:55:243
18364352112,5sleep30-21swapper/320:15:473
17963022112,5sleep30-21swapper/319:35:023
17867702112,6sleep30-21swapper/319:25:433
17693572112,5sleep30-21swapper/319:10:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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