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2026-09-20 - 00:53

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 Sat Sep 19, 2026 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212977921880,2sleep3481ktimers/312:24:083
18926032960,3chrt75-21kworker/3:1-events08:24:173
1816507996352,9cyclictest278-21systemd-journal12:35:001
1816499996354,6cyclictest1987078-21latency_hist10:00:010
1816507995847,8cyclictest278-21systemd-journal08:50:001
1816507995847,8cyclictest1962088-21latency_hist09:35:021
1816509995744,10cyclictest2115554-21ntpq12:09:122
1816507995649,5cyclictest1843119-21kworker/u8:3+flush-8:007:44:151
1816509995241,9cyclictest1848562-21cat07:40:012
1816499995243,7cyclictest2121125-21latency_hist12:15:010
20773322510,3sleep10-21swapper/111:34:021
1816507995142,6cyclictest2021951-21kworker/u8:2+events_unbound10:44:121
1816499994941,6cyclictest1937575-21kworker/u8:2+flush-8:009:54:100
1816499994936,9cyclictest278-21systemd-journal11:02:080
1816499994936,10cyclictest278-21systemd-journal11:44:080
1816507994538,5cyclictest998204-21kworker/u8:1+flush-8:007:54:171
1816499994534,8cyclictest278-21systemd-journal12:01:080
1816499994534,8cyclictest278-21systemd-journal09:44:060
1816507994436,6cyclictest1996913-21kworker/u8:1+flush-8:011:49:061
1816507994338,4cyclictest1900811-21kworker/u8:3+flush-8:008:39:021
1816507994337,4cyclictest1900811-21kworker/u8:3+events_unbound08:34:081
1816507994335,5cyclictest2021951-21kworker/u8:2+events_unbound10:39:111
1816507994233,6cyclictest1996913-21kworker/u8:1+flush-8:011:54:121
1816507994233,6cyclictest1996913-21kworker/u8:1+flush-8:011:54:121
1816507994231,8cyclictest278-21systemd-journal09:30:001
1816507994132,7cyclictest1862603-21kworker/u8:2+flush-8:008:04:121
1816499994136,3cyclictest998204-21kworker/u8:1+events_unbound07:59:090
1816499994133,6cyclictest1947273-21latency_hist09:20:010
18162052414,9sleep20-21swapper/207:09:182
1816499994031,7cyclictest278-21systemd-journal10:45:010
1816499994031,7cyclictest1957137-21latency_hist09:30:010
1816509993918,8cyclictest1833205-21cron07:25:002
1816499993931,6cyclictest2071051-21ntpq11:24:130
181649999387,24cyclictest2001959-21kworker/0:2+events10:49:010
1816499993828,7cyclictest2046669-21latency_hist11:00:010
1816507993732,4cyclictest1937575-21kworker/u8:2+flush-8:009:54:121
1816507993731,4cyclictest998204-21kworker/u8:1+flush-8:007:59:041
1816507993631,4cyclictest1862603-21kworker/u8:2+flush-8:008:19:161
1816507993629,5cyclictest1987012-21kworker/u8:0+flush-8:011:14:061
1816507993528,5cyclictest2046037-21ntpq10:59:121
1816507993528,5cyclictest1796548-21kworker/u8:0+events_unbound08:09:101
1816507993527,6cyclictest1900811-21kworker/u8:3+flush-8:009:09:151
1816507993527,5cyclictest278-21systemd-journal07:24:071
1816507993523,8cyclictest1996913-21kworker/u8:1+flush-8:010:14:151
1816507993523,8cyclictest1996913-21kworker/u8:1+flush-8:010:14:151
1816499993527,6cyclictest278-21systemd-journal10:14:080
1816499993527,6cyclictest278-21systemd-journal10:14:080
18117352354,9sleep10-21swapper/107:05:471
1816507993427,5cyclictest998204-21kworker/u8:1+flush-8:007:34:161
1816507993427,5cyclictest1996913-21kworker/u8:1+events_unbound11:44:031
1816507993427,5cyclictest1987012-21kworker/u8:0+events_unbound10:04:071
1816507993422,8cyclictest1942303-21awk09:15:001
1816507993421,4cyclictest421rcuog/209:04:131
181649999344,24cyclictest1897844-21kworker/0:2+events08:40:010
181649999344,24cyclictest1897844-21kworker/0:2+events08:40:010
1816499993426,6cyclictest1933207-21diskstats09:09:010
1816499993422,9cyclictest1902150-21ntpq08:34:110
1816509993318,3cyclictest2121943-21fschecks_count12:19:032
1816507993329,3cyclictest1996913-21kworker/u8:1+events_unbound11:09:021
1816507993328,3cyclictest1912698-21kworker/u8:1+events_unbound08:59:011
1816507993326,5cyclictest2106336-21kworker/u8:2+events_unbound12:14:031
1816507993326,5cyclictest2081808-21kworker/u8:3+flush-8:011:59:121
1816507993326,5cyclictest2071681-21kworker/u8:0+flush-8:012:19:031
1816507993325,6cyclictest1796548-21kworker/u8:0+flush-8:008:24:161
1816507993325,5cyclictest1775388-21kworker/u8:2+events_unbound07:18:591
181649999339,22cyclictest2001959-21kworker/0:2+events11:54:050
181649999339,22cyclictest2001959-21kworker/0:2+events11:54:050
1816499993325,6cyclictest2041281-21grep10:54:180
1816499993324,7cyclictest278-21systemd-journal08:09:070
1816499993324,7cyclictest2106301-21latency_hist12:00:000
1816499993322,9cyclictest1951577-21ntpq09:24:140
19382892320,2sleep2161rcu_preempt09:14:032
1816509993227,3cyclictest1937575-21kworker/u8:2+flush-8:009:44:122
1816509993217,3cyclictest1933272-21fschecks_time09:09:012
1816507993227,4cyclictest1937575-21kworker/u8:2+events_unbound09:44:091
1816507993225,5cyclictest2141414-21apt-get12:38:571
1816507993225,5cyclictest1987012-21kworker/u8:0+events_unbound11:04:031
1816499993215,14cyclictest278-21systemd-journal12:19:080
181649999321,25cyclictest2111300-21kworker/0:0+events12:26:490
1816507993125,5cyclictest1900811-21kworker/u8:3+flush-8:009:21:381
1816507993124,5cyclictest2116217-21latency_hist12:10:011
1816507993122,7cyclictest278-21systemd-journal11:22:071
1816507993122,7cyclictest1862603-21kworker/u8:2+flush-8:008:14:161
1816499993124,5cyclictest1937576-21kworker/u8:4+flush-8:009:14:030
1816499993123,6cyclictest1862603-21kworker/u8:2+flush-8:008:16:380
1816499993122,7cyclictest1849174-21diskstats07:44:010
1816499993120,9cyclictest0-21swapper/010:40:000
1816507993024,5cyclictest1937576-21kworker/u8:4+flush-8:009:19:131
1816507993024,4cyclictest1996913-21kworker/u8:1+flush-8:011:29:071
1816507993024,4cyclictest1937575-21kworker/u8:2+events_unbound09:39:151
1816507993023,5cyclictest1796548-21kworker/u8:0+events_unbound08:54:011
181649999302,27cyclictest2001959-21kworker/0:2+events11:09:050
181649999302,26cyclictest2111300-21kworker/0:0+events12:34:130
181649999302,26cyclictest2001959-21kworker/0:2+events11:39:170
181649999302,26cyclictest1952220-21kworker/0:0+events10:04:130
1816499993021,7cyclictest1892235-21ntpq08:24:100
1816499993021,7cyclictest1858272-21latency_hist07:50:010
181649999301,27cyclictest437192-21kworker/0:1+events07:29:170
181649999301,27cyclictest437192-21kworker/0:1+events07:29:170
1816507992923,4cyclictest2071681-21kworker/u8:0+events_unbound12:24:101
1816507992923,4cyclictest1937576-21kworker/u8:4+flush-8:009:59:011
181649999299,19cyclictest2001959-21kworker/0:2+events11:32:210
181649999291,26cyclictest437192-21kworker/0:1+events07:14:130
181649999291,26cyclictest1897844-21kworker/0:2+events09:04:130
181649999291,26cyclictest1897844-21kworker/0:2+events08:59:100
1816499992910,17cyclictest437192-21kworker/0:1+events07:34:050
1816509992824,2cyclictest2106985-21aten2_r5power_v12:04:022
1816507992824,3cyclictest390-21dbus-daemon10:35:011
1816507992823,3cyclictest2021951-21kworker/u8:2+flush-8:010:49:131
1816507992822,4cyclictest1775388-21kworker/u8:2+flush-8:007:29:161
1816507992822,4cyclictest1775388-21kworker/u8:2+flush-8:007:29:161
1816507992821,5cyclictest2071681-21kworker/u8:0+events_unbound12:29:121
1816507992821,5cyclictest1987012-21kworker/u8:0+events_unbound10:19:011
1816507992821,5cyclictest1796548-21kworker/u8:0+flush-8:008:44:141
1816507992821,5cyclictest1796548-21kworker/u8:0+flush-8:008:44:141
181649999287,19cyclictest1952220-21kworker/0:0+events09:39:130
181649999284,22cyclictest437192-21kworker/0:1+events07:24:090
1816499992823,3cyclictest1962261-21apt-key09:35:010
181649999282,25cyclictest1952220-21kworker/0:0+events09:46:370
1816499992821,5cyclictest1796548-21kworker/u8:0+flush-8:007:39:100
1816499992820,6cyclictest1862534-21ntpq07:54:120
181649999281,26cyclictest2001959-21kworker/0:2+events11:46:010
1816499992810,17cyclictest2001959-21kworker/0:2+events11:19:090
1816499992810,16cyclictest2111300-21kworker/0:0+events12:24:130
1816499992810,16cyclictest1868177-21kworker/0:0+events08:14:170
181649999280,27cyclictest2001959-21kworker/0:2+events11:29:170
1816507992723,3cyclictest1996913-21kworker/u8:1+flush-8:011:35:391
1816507992723,2cyclictest2016774-21munin-run10:30:011
1816507992721,4cyclictest2106336-21kworker/u8:2+flush-8:012:04:201
181649999277,18cyclictest2111300-21kworker/0:0+events12:39:050
1816499992722,3cyclictest1871125-21taskset08:04:080
1816509992623,2cyclictest2131622-21aten2_r5power_e12:29:002
1816509992623,2cyclictest2126740-21aten2_r5power_v12:24:002
1816509992623,2cyclictest1882837-21unixbench_multi08:14:172
1816509992622,2cyclictest2082359-21cpuspeed_turbos11:39:032
1816509992622,2cyclictest2057601-21fschecks_count11:14:022
1816509992622,2cyclictest1987706-21aten2_r5power_e10:04:012
181649999269,15cyclictest437192-21kworker/0:1+events07:19:130
181649999268,16cyclictest2001959-21kworker/0:2+events10:28:570
181649999268,16cyclictest1868177-21kworker/0:0+events08:25:570
1816509992521,2cyclictest2012423-21aten2_r5power_e10:29:002
1816509992520,3cyclictest1877905-21unixbench_singl08:09:162
1816509992519,4cyclictest1947285-21idleruntime-cro09:20:002
1816509992515,8cyclictest1907606-21unixbench_singl08:39:172
1816509992510,2cyclictest20875252awk11:44:052
181650999250,12cyclictest2003439-21cut10:19:072
1816507992520,4cyclictest1987012-21kworker/u8:0+flush-8:010:05:051
1816507992519,4cyclictest1937576-21kworker/u8:4+events_unbound09:49:151
1816507992519,4cyclictest1846338-21runrttasks07:39:071
1816507992514,8cyclictest278-21systemd-journal07:49:061
181649999258,16cyclictest2001959-21kworker/0:2+events11:14:140
181649999257,16cyclictest1897844-21kworker/0:2+events08:49:130
1816499992519,4cyclictest2019455-21kthreadcore10:34:070
1816499992510,14cyclictest1952220-21kworker/0:0+events10:08:410
1816509992421,2cyclictest2092076-21aten2_r5power_c11:48:592
1816509992421,2cyclictest1977994-21fschecks_count09:54:012
1816509992421,2cyclictest1923176-21aten2_r5power_p08:59:002
1816509992419,3cyclictest1957906-21cpuspeed_turbos09:34:012
1816507992420,2cyclictest0-21swapper/110:55:001
1816507992418,5cyclictest998204-21kworker/u8:1+flush-8:007:14:121
1816509992320,2cyclictest2032446-21fschecks_count10:49:062
1816509992320,2cyclictest1863069-21unixbench_singl07:54:192
1816509992314,7cyclictest1898726-21fschecks_time08:34:022
1816509992312,9cyclictest2046666-21cat11:00:002
1816507992318,4cyclictest1987012-21kworker/u8:0+flush-8:010:20:311
181649999236,16cyclictest2001959-21kworker/0:2+events10:19:010
181649999233,18cyclictest2001959-21kworker/0:2+events12:07:410
1816499992319,3cyclictest0-21swapper/008:40:000
1816499992318,3cyclictest0-21swapper/008:54:020
1816509992218,2cyclictest1848956-21aten2_r5power_c07:43:592
1816509992217,4cyclictest1868028-21unixbench_singl07:59:192
1816509992216,4cyclictest2141445-21aten2_r5power_c12:38:592
1816509992216,4cyclictest2063202-21kthreadcore11:19:092
1816509992216,4cyclictest2040750-21needreboot10:54:092
1816509992213,7cyclictest2075847-21sort11:29:102
1816509992213,7cyclictest2027509-21fschecks_count10:44:042
181650799228,4cyclictest0-21swapper/108:28:541
1816507992217,3cyclictest0-21swapper/111:19:071
181650999215,3cyclictest20806932tr11:34:102
1816509992117,2cyclictest0-21swapper/209:04:082
1816509992116,3cyclictest1833879-21aten2_r5power_v07:29:002
1816509992116,3cyclictest1833879-21aten2_r5power_v07:29:002
1816509992115,4cyclictest1883901-21fschecks_time08:19:032
1816509992113,7cyclictest2102229-21fschecks_time11:59:022
1816509992113,7cyclictest1908605-21fschecks_time08:44:022
1816509992113,7cyclictest1908605-21fschecks_time08:44:022
1816509992113,6cyclictest1992921-21fschecks_time10:09:042
1816509992112,7cyclictest1953018-21fschecks_count09:29:032
1816509992112,7cyclictest1817240-21fschecks_count07:14:032
1816499992117,2cyclictest0-21swapper/010:24:160
18117642212,11sleep30-21swapper/307:06:093
1816509992015,3cyclictest1824168-21fschecks_time07:19:022
1816509992011,7cyclictest2121129-21cat12:15:002
1816509992011,7cyclictest2097270-21fschecks_time11:54:022
1816509992011,7cyclictest2097270-21fschecks_time11:54:022
1816509992011,7cyclictest1973088-21fschecks_count09:49:022
1816509992011,7cyclictest1913519-21fschecks_count08:49:062
1816509992011,7cyclictest1888795-21fschecks_count08:24:022
1816509991915,2cyclictest0-21swapper/207:34:002
1816509991914,3cyclictest1952046-21unixbench_multi09:24:202
1816509991914,3cyclictest0-21swapper/211:25:002
1816509991913,4cyclictest2052717-21fschecks_time11:09:022
1816509991913,4cyclictest2051697-21unixbench_multi11:04:192
1816509991913,4cyclictest2007746-21fschecks_count10:24:042
1816509991913,4cyclictest1982979-21fschecks_count09:59:012
1816509991910,7cyclictest2136849-21fschecks_time12:34:032
1816509991814,2cyclictest0-21swapper/210:34:112
1816509991814,2cyclictest0-21swapper/210:14:042
1816509991814,2cyclictest0-21swapper/210:14:042
1816509991813,3cyclictest0-21swapper/208:29:202
1816509991712,3cyclictest0-21swapper/207:49:062
1816509991711,4cyclictest0-21swapper/208:04:082
181649999171,13cyclictest1816501-21latency_hist07:10:010
1816509991612,2cyclictest0-21swapper/209:35:062
1816509991611,3cyclictest0-21swapper/210:39:072
18591052155,6sleep30-21swapper/307:54:053
181650999152,12cyclictest0-21swapper/208:51:552
20816052132,6sleep30-21swapper/311:35:013
20359262134,5sleep30-21swapper/310:49:153
19888412133,7sleep30-21swapper/310:04:093
19383912132,7sleep30-21swapper/309:14:053
19042092133,7sleep30-21swapper/308:39:073
21219232122,6sleep30-21swapper/312:19:033
21063462122,6sleep30-21swapper/312:00:013
21007122123,6sleep30-21swapper/311:54:113
21007122123,6sleep30-21swapper/311:54:113
20665302122,6sleep30-21swapper/311:19:203
20615952122,6sleep30-21swapper/311:14:193
20559962122,6sleep30-21swapper/311:09:093
20375112122,6sleep30-21swapper/310:54:053
20272222122,6sleep30-21swapper/310:44:013
20169822122,6sleep30-21swapper/310:30:093
20154942122,6sleep30-21swapper/310:29:093
20074282122,6sleep30-21swapper/310:23:593
19930412122,6sleep30-21swapper/310:09:073
19859082122,6sleep30-21swapper/309:59:073
19680992122,6sleep30-21swapper/309:44:033
19628882122,6sleep30-21swapper/309:39:023
19274082122,6sleep30-21swapper/308:59:373
19216902122,6sleep30-21swapper/308:54:113
19122122122,6sleep30-21swapper/308:44:163
19122122122,6sleep30-21swapper/308:44:163
18988752122,6sleep30-21swapper/308:34:053
18832992122,6sleep30-21swapper/308:16:073
18577352122,6sleep30-21swapper/307:49:153
18434842122,6sleep30-21swapper/307:37:073
18377502122,6sleep30-21swapper/307:29:173
18377502122,6sleep30-21swapper/307:29:173
18326972122,6sleep30-21swapper/307:24:163
21413192112,6sleep30-21swapper/312:38:053
21361972112,6sleep30-21swapper/312:30:223
21355832112,5sleep30-21swapper/312:29:183
21165302112,6sleep30-21swapper/312:11:183
21116562112,6sleep30-21swapper/312:07:033
21018252112,6sleep30-21swapper/311:58:083
20918092112,6sleep30-21swapper/311:46:133
20867872112,6sleep30-21swapper/311:40:233
20770102112,6sleep30-21swapper/311:32:283
20730972112,5sleep30-21swapper/311:29:073
20669322112,6sleep30-21swapper/311:20:253
20471912112,6sleep30-21swapper/311:00:433
20419522112,6sleep30-21swapper/310:55:373
20220712112,5sleep30-21swapper/310:37:073
20021662112,6sleep30-21swapper/310:15:163
19972372112,6sleep30-21swapper/310:10:233
19972372112,6sleep30-21swapper/310:10:233
19774232112,6sleep30-21swapper/309:50:173
19771672110,6sleep30-21swapper/309:50:013
19574102112,6sleep30-21swapper/309:30:433
19524682112,6sleep30-21swapper/309:25:373
19478142112,5sleep30-21swapper/309:24:003
19427142112,6sleep30-21swapper/309:17:223
19327752112,6sleep30-21swapper/309:06:553
19277202112,6sleep30-21swapper/309:00:213
19129302112,6sleep30-21swapper/308:45:283
18932132112,6sleep30-21swapper/308:26:233
18784942112,6sleep30-21swapper/308:13:143
18734622112,6sleep30-21swapper/308:06:403
18684052112,6sleep30-21swapper/308:00:223
18634882112,6sleep30-21swapper/307:56:093
18486862112,6sleep30-21swapper/307:41:133
18381502112,5sleep30-21swapper/307:30:013
18235692112,6sleep30-21swapper/307:15:413
18167512112,6sleep30-21swapper/307:11:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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