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2026-04-25 - 03:56

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 Sat Apr 25, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4135143996959,7cyclictest136747-21kworker/u8:0+flush-8:023:01:181
4135143996353,8cyclictest95428-21kworker/u8:1+flush-8:021:51:251
1898372590,1sleep0189842-21cut23:16:130
4135143995848,7cyclictest211597-21apt-get23:40:001
4135148995750,5cyclictest191660-21gpgv23:20:002
4135139995753,3cyclictest106565-21kworker/u8:3+events_unbound22:36:100
4135143995650,4cyclictest212085-21kworker/u8:3+flush-8:023:51:261
4135143995650,4cyclictest212085-21kworker/u8:3+flush-8:023:51:261
4135143995551,3cyclictest4093176-21kworker/u8:3+flush-8:019:16:221
4135143995548,6cyclictest4186742-21kworker/u8:1+flush-8:020:41:181
4135139995550,4cyclictest197031-21kworker/u8:1+events_unbound23:36:110
4135143995450,3cyclictest106565-21kworker/u8:3+events_unbound22:21:241
4135143995447,5cyclictest4087679-21kworker/u8:2+events_unbound20:01:201
4135139995448,4cyclictest62356-21kworker/u8:0+events_unbound21:31:180
4135148995343,7cyclictest237098-21cp00:05:012
4135143995346,5cyclictest161528-21kworker/u8:2+events_unbound23:06:241
4135143995345,6cyclictest191696-21kworker/u8:0+events_unbound23:31:221
4135143995246,5cyclictest95428-21kworker/u8:1+flush-8:022:41:201
4135143995246,5cyclictest62356-21kworker/u8:0+flush-8:021:31:241
4135143995246,4cyclictest4087679-21kworker/u8:2+flush-8:019:36:251
4135139995249,2cyclictest136747-21kworker/u8:0+events_unbound22:51:110
4135143995145,4cyclictest212085-21kworker/u8:3+flush-8:000:21:201
4135143995143,6cyclictest136747-21kworker/u8:0+flush-8:022:51:221
4135143995138,5cyclictest52200-21kworker/u8:2+flush-8:021:56:111
4135139995147,3cyclictest112038-21kworker/u8:0+events_unbound22:01:120
4135143995045,4cyclictest212085-21kworker/u8:3+events_unbound00:31:231
4135143995042,6cyclictest212085-21kworker/u8:3+events_unbound00:16:221
4135139995044,4cyclictest212085-21kworker/u8:3+events_unbound23:51:230
4135139995044,4cyclictest212085-21kworker/u8:3+events_unbound23:51:220
341142500,6chrt0-21swapper/220:41:142
41541282490,2sleep3471rcuc/319:26:153
4135148994939,7cyclictest280-21systemd-journal23:05:002
4135139994945,3cyclictest231906-21kworker/u8:4+events_unbound00:16:080
4135139994934,10cyclictest280-21systemd-journal20:13:170
4135143994843,3cyclictest4087679-21kworker/u8:2+flush-8:019:11:141
4135143994842,4cyclictest7628-21kworker/u8:0+flush-8:020:46:171
4135143994841,5cyclictest4171638-21kworker/u8:3+flush-8:020:31:191
4135143994840,6cyclictest181319-21kworker/u8:4+flush-8:023:11:211
4135143994743,3cyclictest4156839-21kworker/u8:0+events_unbound19:46:171
4135143994742,4cyclictest4087679-21kworker/u8:2+flush-8:020:06:181
4135143994742,3cyclictest106565-21kworker/u8:3+events_unbound22:31:191
4135143994740,4cyclictest7628-21kworker/u8:0+flush-8:020:51:171
4135143994641,4cyclictest4186742-21kworker/u8:1+flush-8:020:56:231
4135143994641,3cyclictest136747-21kworker/u8:0+events_unbound22:46:241
4135143994640,5cyclictest212085-21kworker/u8:3+flush-8:023:46:211
4135143994639,5cyclictest52200-21kworker/u8:2+events_unbound21:16:171
4135139994643,2cyclictest95428-21kworker/u8:1+events_unbound23:05:040
4135143994540,4cyclictest4186742-21kworker/u8:1+flush-8:020:26:191
4135143994540,4cyclictest4186742-21kworker/u8:1+flush-8:020:26:191
4135143994538,6cyclictest4171638-21kworker/u8:3+events_unbound21:21:191
4135139994541,3cyclictest4171638-21kworker/u8:3+events_unbound21:11:270
4135139994535,7cyclictest280-21systemd-journal21:50:000
4135143994440,3cyclictest4125450-21kworker/u8:1+flush-8:019:31:201
4135143994438,4cyclictest7628-21kworker/u8:0+events_unbound21:01:201
4135143994437,4cyclictest62356-21kworker/u8:0+flush-8:021:36:211
4135139994437,4cyclictest171440-21true23:00:000
279622440,1chrt27963-21/usr/sbin/munin20:36:122
4135148994335,5cyclictest231652-40logrotate00:00:002
4135143994339,3cyclictest4087679-21kworker/u8:2+flush-8:019:56:201
4135143994339,3cyclictest4087679-21kworker/u8:2+events_unbound19:41:211
4135143994336,5cyclictest4171638-21kworker/u8:3+flush-8:020:16:191
4135139994340,2cyclictest7628-21kworker/u8:0+events_unbound20:47:180
4135139994339,3cyclictest62356-21kworker/u8:0+events_unbound21:25:180
4135139994339,3cyclictest106565-21kworker/u8:3+events_unbound22:40:380
4135139994332,9cyclictest32746-21diskstats20:41:090
4135143994238,3cyclictest52200-21kworker/u8:2+flush-8:021:11:191
4135143994237,4cyclictest267087-21kworker/u8:0+flush-8:000:36:091
4135143994237,3cyclictest106565-21kworker/u8:3+flush-8:022:26:181
4135143994235,5cyclictest112038-21kworker/u8:0+flush-8:022:01:181
4135143994233,7cyclictest125763-21ntpq22:11:191
4135139994239,2cyclictest231906-21kworker/u8:4+events_unbound00:39:400
4135139994238,3cyclictest95428-21kworker/u8:1+events_unbound23:12:490
4135139994238,3cyclictest161528-21kworker/u8:2+events_unbound23:01:420
4135143994135,4cyclictest62356-21kworker/u8:0+events_unbound21:30:011
4135139994138,2cyclictest191696-21kworker/u8:0+events_unbound23:56:110
4135139994137,3cyclictest62356-21kworker/u8:0+events_unbound21:35:180
4135139994137,3cyclictest52200-21kworker/u8:2+events_unbound21:17:290
4135139994137,3cyclictest231906-21kworker/u8:4+events_unbound00:20:170
4135139994134,5cyclictest4181914-21apt-get19:56:050
4135139994131,8cyclictest4165852-21ntpq19:36:170
4135148994023,3cyclictest212405-21cpuspeed_turbos23:41:082
4135143994036,3cyclictest212085-21kworker/u8:3+events_unbound00:11:191
4135139994037,2cyclictest4171638-21kworker/u8:3+events_unbound20:28:180
4135139994037,2cyclictest4171638-21kworker/u8:3+events_unbound20:28:180
4135139994036,3cyclictest7628-21kworker/u8:0+events_unbound21:02:250
4135139994036,3cyclictest4093176-21kworker/u8:3+events_unbound19:22:170
4135139994036,3cyclictest4087679-21kworker/u8:2+events_unbound19:50:380
4135139994036,3cyclictest212085-21kworker/u8:3+events_unbound00:04:160
4135139994032,5cyclictest106836-21latency_hist21:55:010
41347072404,9sleep20-21swapper/219:06:482
4135148993930,7cyclictest42146-21store20:50:012
4135143993934,3cyclictest95428-21kworker/u8:1+events_unbound22:06:111
4135143993934,3cyclictest95428-21kworker/u8:1+events_unbound22:06:101
4135143993933,5cyclictest197031-21kworker/u8:1+flush-8:023:26:211
4135143993929,7cyclictest101033-21ntpq21:46:191
4135139993935,3cyclictest52200-21kworker/u8:2+events_unbound21:57:380
4135139993935,3cyclictest52200-21kworker/u8:2+events_unbound21:42:360
4135139993935,3cyclictest246507-21kworker/u8:1+events_unbound00:27:170
4135139993935,3cyclictest212085-21kworker/u8:3+events_unbound23:40:390
4135139993934,4cyclictest4087679-21kworker/u8:2+events_unbound20:07:180
413514899383,14cyclictest87152-21apt-get21:36:062
4135143993834,3cyclictest62356-21kworker/u8:0+events_unbound21:41:131
4135143993833,4cyclictest191696-21kworker/u8:0+events_unbound00:01:211
4135143993832,5cyclictest212085-21kworker/u8:3+flush-8:023:41:211
4135143993832,4cyclictest246507-21kworker/u8:1+flush-8:000:26:141
4135143993831,5cyclictest2774-21apt-get20:11:061
4135139993835,2cyclictest95428-21kworker/u8:1+events_unbound22:06:430
4135139993835,2cyclictest95428-21kworker/u8:1+events_unbound22:06:430
4135139993835,2cyclictest4171638-21kworker/u8:3+events_unbound21:22:300
4135139993835,2cyclictest136747-21kworker/u8:0+events_unbound22:45:360
4135139993834,3cyclictest4156839-21kworker/u8:0+events_unbound19:49:490
4135148993724,11cyclictest192430-21fschecks_time23:21:102
413514899372,14cyclictest141829-21apt-get22:31:082
4135143993733,3cyclictest4125450-21kworker/u8:1+flush-8:019:21:111
4135143993733,3cyclictest161528-21kworker/u8:2+events_unbound22:56:181
4135139993733,3cyclictest4125450-21kworker/u8:1+events_unbound19:19:190
4135139993733,3cyclictest191696-21kworker/u8:0+events_unbound23:48:160
4135139993729,3cyclictest212085-21kworker/u8:3+events_unbound00:09:200
4135143993630,4cyclictest191696-21kworker/u8:0+flush-8:023:56:201
4135139993633,2cyclictest4186742-21kworker/u8:1+events_unbound20:33:150
4135139993632,3cyclictest4186742-21kworker/u8:1+events_unbound20:15:370
4135139993632,3cyclictest4186742-21kworker/u8:1+events_unbound20:02:440
4135139993632,3cyclictest4171638-21kworker/u8:3+events_unbound20:24:390
4135139993632,3cyclictest4087679-21kworker/u8:2+events_unbound19:42:490
413513999361,33cyclictest1-21systemd22:27:170
4135143993531,3cyclictest106565-21kworker/u8:3+events_unbound22:16:161
4135143993529,4cyclictest4087679-21kworker/u8:2+flush-8:019:26:221
4135139993532,2cyclictest7628-21kworker/u8:0+events_unbound20:51:440
4135139993531,3cyclictest126494-21kworker/u8:2+events_unbound22:24:160
4135148993428,4cyclictest62100-21ssh21:10:002
4135139993431,2cyclictest212085-21kworker/u8:3+events_unbound00:13:500
4135139993430,3cyclictest4171638-21kworker/u8:3+events_unbound21:05:050
4135139993430,3cyclictest4125450-21kworker/u8:1+events_unbound19:34:040
4135139993430,3cyclictest4093176-21kworker/u8:3+events_unbound19:28:080
4135139993430,3cyclictest197031-21kworker/u8:1+events_unbound23:25:590
4135139993430,3cyclictest191696-21kworker/u8:0+events_unbound23:32:200
4135139993430,3cyclictest136747-21kworker/u8:0+events_unbound22:31:290
4135139993430,3cyclictest106565-21kworker/u8:3+events_unbound22:17:390
4135139993430,3cyclictest106565-21kworker/u8:3+events_unbound22:12:090
413514899338,9cyclictest112140-21apt-get22:01:072
4135143993323,8cyclictest237479-21diskstats00:06:081
4135139993330,2cyclictest246507-21kworker/u8:1+events_unbound00:30:250
4135139993330,2cyclictest181319-21kworker/u8:4+events_unbound23:22:400
4135139993329,3cyclictest4186742-21kworker/u8:1+events_unbound20:39:330
4135139993329,3cyclictest4171638-21kworker/u8:3+events_unbound20:56:020
4135139993329,3cyclictest4093176-21kworker/u8:3+events_unbound19:12:120
4135139993325,4cyclictest0-21swapper/019:10:010
4135148993224,6cyclictest280-21systemd-journal20:33:172
4135143993227,4cyclictest181319-21kworker/u8:4+events_unbound23:16:161
4135143993126,4cyclictest176150-21kworker/u8:3+events_unbound23:21:211
4135148993021,7cyclictest280-21systemd-journal22:45:002
4135148992924,4cyclictest4087679-21kworker/u8:2+flush-8:019:36:102
4135143992924,4cyclictest4156839-21kworker/u8:0+flush-8:019:51:161
4135148992823,3cyclictest107393-21cpuspeed_turbos21:56:092
4135148992820,6cyclictest4176618-21sh19:50:002
4135148992722,3cyclictest161124-21unixbench_multi22:46:252
4135143992722,3cyclictest106565-21kworker/u8:3+flush-8:022:36:111
4135148992622,2cyclictest42867-21fschecks_count20:51:112
4135148992615,9cyclictest67043-21awk21:15:002
4135143992522,2cyclictest4135146-21grep19:10:011
4135143992521,2cyclictest0-21swapper/121:06:121
413514899242,7cyclictest71161-21ntpq21:16:192
4135148992421,2cyclictest77339-21aten2_r5power_p21:26:052
4135148992320,2cyclictest4186904-21aten2_r5power_e20:01:072
4135148992319,3cyclictest52162-21sendmail21:00:002
4135148992319,3cyclictest261568-21unixbench_singl00:26:262
4135148992319,2cyclictest4177176-21cpuspeed_turbos19:51:092
4135148992319,2cyclictest136905-21aten2_r5power_e22:26:072
4135148992315,6cyclictest401-21dbus-daemon00:35:012
4135143992319,3cyclictest4171638-21kworker/u8:3+events_unbound20:36:301
4135148992219,2cyclictest166999-21cpuspeed_turbos22:56:082
4135148992218,2cyclictest147030-21fschecks_count22:36:102
4135143992218,3cyclictest4186742-21kworker/u8:1+events_unbound20:20:391
4135148992117,2cyclictest0-21swapper/223:31:242
4135148992117,2cyclictest0-21swapper/200:20:002
4135148992117,2cyclictest0-21swapper/200:15:012
4135148992112,6cyclictest0-21swapper/223:40:012
4135148992016,2cyclictest0-21swapper/222:20:012
4135148992015,4cyclictest82508-21uniq21:31:102
4135148992014,4cyclictest0-21swapper/223:06:162
4135148992011,7cyclictest280-21systemd-journal20:24:592
413514899199,7cyclictest4167089-21apt-get19:41:062
413514899193,11cyclictest4156015-21ntpq19:26:202
4135148991916,2cyclictest52624-21aten2_r5power_v21:01:082
4135148991915,3cyclictest0-21swapper/222:25:012
4135148991912,5cyclictest280-21systemd-journal19:12:062
4135148991911,6cyclictest238891-21tr00:06:122
413514899186,4cyclictest0-21swapper/223:26:072
4135148991815,2cyclictest102581-21fschecks_time21:51:122
4135148991815,2cyclictest0-21swapper/221:50:012
4135148991814,2cyclictest0-21swapper/223:51:082
4135148991814,2cyclictest0-21swapper/223:51:072
4135148991814,2cyclictest0-21swapper/221:21:232
4135148991814,2cyclictest0-21swapper/220:16:232
4135148991814,2cyclictest0-21swapper/220:09:592
413514899181,3cyclictest41860802cat19:56:252
4135148991813,3cyclictest0-21swapper/219:21:262
41303452183,8sleep30-21swapper/319:05:043
413514899172,11cyclictest185813-21ntpq23:11:192
4135148991714,2cyclictest122759-21cut22:11:132
4135148991713,3cyclictest0-21swapper/219:15:012
4135148991713,2cyclictest221466-21unixbench_singl23:46:262
4135148991710,5cyclictest270521-21tr00:36:162
4135148991613,2cyclictest0-21swapper/222:54:382
4135148991613,2cyclictest0-21swapper/222:08:062
4135148991613,2cyclictest0-21swapper/222:08:062
4135148991613,2cyclictest0-21swapper/221:41:472
4135148991613,2cyclictest0-21swapper/220:13:192
4135148991611,3cyclictest252944-21irqcore00:21:142
4135148991611,3cyclictest0-21swapper/220:26:152
4135148991611,3cyclictest0-21swapper/220:26:152
413514899156,7cyclictest4157786-21sed19:31:132
1568892142,8sleep30-21swapper/322:46:073
711282132,7sleep30-21swapper/321:16:193
633162132,7sleep30-21swapper/321:11:133
41469672132,6sleep30-21swapper/319:20:023
41461242133,6sleep30-21swapper/319:16:203
25382132,6sleep30-21swapper/320:10:023
2359082132,7sleep30-21swapper/300:01:243
2307432132,7sleep30-21swapper/323:56:183
1887862132,7sleep30-21swapper/323:16:133
1486682132,7sleep30-21swapper/322:36:163
81132122,6sleep30-21swapper/320:16:123
769522122,5sleep30-21swapper/321:25:023
620252122,6sleep30-21swapper/321:09:163
521952122,5sleep30-21swapper/321:00:023
475062122,6sleep30-21swapper/320:56:043
41923302122,6sleep30-21swapper/320:06:123
41772672122,6sleep30-21swapper/319:51:123
41762662122,6sleep30-21swapper/319:46:263
41616622123,5sleep30-21swapper/319:33:383
41362632122,6sleep30-21swapper/319:11:153
325012122,6sleep30-21swapper/320:41:083
315622122,6sleep30-21swapper/320:36:253
2622582122,6sleep30-21swapper/300:31:093
2611652122,6sleep30-21swapper/300:26:243
2511842122,6sleep30-21swapper/300:16:203
2467312122,6sleep30-21swapper/300:14:243
226132123,5sleep30-21swapper/320:31:083
2123712122,6sleep30-21swapper/323:41:093
2114482122,6sleep30-21swapper/323:38:163
2061052122,6sleep30-21swapper/323:31:263
1971052122,6sleep30-21swapper/323:26:073
1764392122,5sleep30-21swapper/323:05:023
1723912122,6sleep30-21swapper/323:01:123
1655582122,6sleep30-21swapper/322:51:213
1514252122,5sleep30-21swapper/322:40:023
1460802122,6sleep30-21swapper/322:31:273
1272522122,6sleep30-21swapper/322:16:103
123232122,5sleep30-21swapper/320:20:013
1220582122,6sleep30-21swapper/322:11:083
1010602122,6sleep30-21swapper/321:46:203
922292112,5sleep30-21swapper/321:40:023
825712112,5sleep30-21swapper/321:31:123
722392112,6sleep30-21swapper/321:20:203
461962112,5sleep30-21swapper/320:51:183
41867372112,5sleep30-21swapper/320:00:023
41818092114,4sleep30-21swapper/319:55:053
41706132112,6sleep30-21swapper/319:41:163
41620052112,5sleep30-21swapper/319:35:013
376562112,5sleep30-21swapper/320:46:093
2670072112,6sleep30-21swapper/300:35:023
2522962112,6sleep30-21swapper/300:20:383
2366542112,5sleep30-21swapper/300:05:013
2221222112,6sleep30-21swapper/323:51:083
2221222112,6sleep30-21swapper/323:51:083
2171062112,6sleep30-21swapper/323:45:433
1966712112,5sleep30-21swapper/323:23:563
1819402112,5sleep30-21swapper/323:11:073
175392112,6sleep30-21swapper/320:25:193
175392112,6sleep30-21swapper/320:25:193
1666692112,5sleep30-21swapper/322:55:023
1370942112,5sleep30-21swapper/322:26:093
1323062112,5sleep30-21swapper/322:21:113
1169912112,6sleep30-21swapper/322:05:183
1169912112,6sleep30-21swapper/322:05:173
1121142112,5sleep30-21swapper/322:01:053
1075362112,5sleep30-21swapper/321:56:113
1019602112,5sleep30-21swapper/321:50:023
876082102,5sleep30-21swapper/321:36:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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