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2026-03-28 - 21:53

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackeslot4s.osadl.org (updated Sat Mar 28, 2026 12:44:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145224994139,1cyclictest300785-21fwupd09:38:173
145224994137,3cyclictest229161-21kworker/u8:4+flush-259:008:55:173
145215993631,4cyclictest275638-21diskstats09:15:150
145224993431,2cyclictest352332-21kworker/u8:1+flush-259:011:00:183
145224993431,2cyclictest352332-21kworker/u8:1+flush-259:011:00:173
145215993329,3cyclictest192704-21apt-get07:55:110
145222993227,3cyclictest461745-21/usr/sbin/munin12:15:252
145224993025,4cyclictest441133-21apt-get11:55:113
145218993024,4cyclictest249490-21latency_hist08:50:011
145215993026,3cyclictest203028-21apt-get08:05:120
145224992925,3cyclictest202780-21kworker/u8:1+flush-259:008:15:203
145222992926,2cyclictest352585-21gpgv10:30:002
145222992923,4cyclictest300948-21latency_hist09:40:012
145218992925,3cyclictest2267756-21kworker/u8:5+flush-259:007:30:011
145222992825,2cyclictest352332-21kworker/u8:1+flush-259:010:50:002
145218992724,2cyclictest409872-21kworker/u8:4+events_unbound11:45:151
145218992722,3cyclictest252-21systemd-journal07:13:161
145215992724,2cyclictest229161-21kworker/u8:4+flush-259:008:40:220
145222992622,3cyclictest239227-21kworker/u8:1+flush-259:009:00:252
145218992622,3cyclictest252-21systemd-journal08:10:001
145215992621,3cyclictest509-21rs:main0
145224992521,3cyclictest461742-21kworker/u8:2+events_unbound12:15:153
145224992521,3cyclictest275440-21kworker/u8:0+events_unbound09:40:133
145224992519,4cyclictest311252-21latency_hist09:50:013
145215992520,3cyclictest394548-21apt-get11:10:120
145224992418,4cyclictest270471-21diskstats09:10:133
145218992420,3cyclictest192551-21base6407:55:011
145215992421,2cyclictest326787-21kworker/u8:2+flush-259:010:25:000
145215992419,4cyclictest259786-21latency_hist09:00:010
145224992318,4cyclictest259837-21kworker/u8:2+events_unbound09:05:003
145224992317,4cyclictest321849-21apt-get10:00:123
145224992316,5cyclictest252-21systemd-journal11:20:183
145222992319,3cyclictest363542-21kworker/u8:2+flush-259:010:55:242
145222992319,3cyclictest140028-21kworker/u8:1+flush-259:007:10:172
145218992319,3cyclictest363312-21latency_hist10:40:001
145218992319,3cyclictest252-21systemd-journal09:17:161
145215992320,2cyclictest275440-21kworker/u8:0+flush-259:009:30:000
145224992219,2cyclictest379029-21kworker/u8:3+events_unbound12:00:153
145224992218,3cyclictest420202-21kworker/u8:1+flush-259:011:40:013
145224992218,3cyclictest399488-21kworker/u8:0+events_unbound11:15:283
145224992216,4cyclictest435710-21latency_hist11:50:013
145222992219,2cyclictest192131-21gpgv07:55:002
145222992216,4cyclictest223872-21cat08:25:012
145218992219,2cyclictest223276-21kworker/u8:1+flush-259:008:25:211
145224992118,2cyclictest171349-21turbostat.cron07:35:013
145224992117,3cyclictest388773-21kworker/u8:0+flush-259:011:05:153
145224992117,3cyclictest229161-21kworker/u8:4+events_unbound10:30:173
145215992117,3cyclictest472018-21apt-get12:25:120
145215992114,5cyclictest403763-21ntpq11:15:230
145224992016,3cyclictest275440-21kworker/u8:0+flush-259:009:20:163
145222992018,1cyclictest0-21swapper/208:04:592
145224991913,4cyclictest161002-21latency_hist07:25:003
145222991915,3cyclictest254916-21apt-get08:55:132
145218991915,3cyclictest399488-21kworker/u8:0+flush-259:011:15:541
145215991917,1cyclictest181653-21cron07:45:000
145215991914,4cyclictest1-21systemd09:10:160
145215991914,3cyclictest252-21systemd-journal12:00:020
145215991914,3cyclictest186836-21cron07:50:000
145224991815,2cyclictest95650-21kworker/u8:3+events_unbound07:10:163
145222991816,1cyclictest379029-21kworker/u8:3+flush-259:011:15:002
145222991815,2cyclictest379029-21kworker/u8:3+flush-259:012:00:102
145222991815,2cyclictest358122-21idleruntime-cro10:35:012
145222991815,2cyclictest321573-21journal-offline10:00:002
145222991815,1cyclictest0-21swapper/212:35:002
145222991814,3cyclictest326787-21kworker/u8:2+flush-259:010:15:162
145215991814,3cyclictest275440-21kworker/u8:0+flush-259:009:35:160
145215991814,3cyclictest150539-21apt-get07:15:110
145215991813,4cyclictest374069-21diskstats10:50:140
14522499176,4cyclictest252-21systemd-journal12:15:003
145224991713,3cyclictest95650-21kworker/u8:3+events_unbound07:55:233
145224991713,3cyclictest461742-21kworker/u8:2+events_unbound12:30:003
145224991713,3cyclictest379029-21kworker/u8:3+events_unbound12:30:243
145224991713,2cyclictest0-21swapper/310:30:003
145224991710,5cyclictest252-21systemd-journal11:55:013
145222991715,1cyclictest324159-21kthreadcore10:00:182
145218991712,4cyclictest155690-21cat07:20:001
145218991711,5cyclictest155986-21cat07:20:011
145215991714,2cyclictest60350irq/132-enp0s29f1:rx-007:35:210
145215991713,3cyclictest285511-21latency_hist09:25:010
14522499168,5cyclictest252-21systemd-journal08:40:003
145224991614,1cyclictest275440-21kworker/u8:0+events_unbound09:30:143
145224991613,2cyclictest229161-21kworker/u8:4+flush-259:009:50:233
145224991612,3cyclictest352332-21kworker/u8:1+events_unbound10:40:243
145224991612,3cyclictest285531-21kworker/u8:1+flush-259:009:25:163
145222991613,2cyclictest229161-21kworker/u8:4+flush-259:008:40:002
145222991613,2cyclictest0-21swapper/207:49:592
145222991611,4cyclictest252-21systemd-journal08:45:162
145218991612,3cyclictest208169-21apt-get08:10:141
145218991611,4cyclictest252-21systemd-journal09:45:001
145218991611,3cyclictest353069-21base6410:30:001
145215991614,1cyclictest60350irq/132-enp0s29f1:rx-007:30:320
145224991512,2cyclictest239227-21kworker/u8:1+events_unbound09:10:013
145224991512,2cyclictest223759-21latency_hist08:25:013
145224991512,2cyclictest223759-21latency_hist08:25:013
145224991511,3cyclictest275440-21kworker/u8:0+flush-259:009:15:313
145224991511,3cyclictest248619-21ntp_kernel_pll_08:45:213
145224991511,3cyclictest202780-21kworker/u8:1+flush-259:008:05:203
145222991510,4cyclictest252-21systemd-journal11:50:002
145218991513,1cyclictest503-21tpm2-abrmd08:54:591
145215991513,1cyclictest60350irq/132-enp0s29f1:rx-012:18:580
145215991513,1cyclictest60350irq/132-enp0s29f1:rx-011:25:190
145215991513,1cyclictest60350irq/132-enp0s29f1:rx-011:00:140
145215991513,1cyclictest60350irq/132-enp0s29f1:rx-011:00:140
145215991513,1cyclictest60350irq/132-enp0s29f1:rx-010:15:130
145215991512,2cyclictest60350irq/132-enp0s29f1:rx-007:20:160
145215991512,2cyclictest275440-21kworker/u8:0+flush-259:009:45:170
145215991512,2cyclictest229161-21kworker/u8:4+flush-259:010:40:000
145215991511,3cyclictest363542-21kworker/u8:2+flush-259:010:55:160
145224991411,2cyclictest409872-21kworker/u8:4+flush-259:011:30:003
145224991411,2cyclictest379029-21kworker/u8:3+flush-259:011:30:213
145224991411,1cyclictest0-21swapper/307:15:163
145224991410,3cyclictest229161-21kworker/u8:4+flush-259:008:30:213
145224991410,2cyclictest0-21swapper/310:20:003
145224991410,2cyclictest0-21swapper/308:29:593
14522299149,3cyclictest425573-21munin-node11:40:102
145222991412,1cyclictest0-21swapper/209:50:182
145222991411,2cyclictest156218-21cpuspeed_turbos07:20:132
145222991411,2cyclictest0-21swapper/208:10:172
145222991410,3cyclictest223348-21apt-get08:25:002
145222991410,3cyclictest223348-21apt-get08:25:002
14521899149,3cyclictest509-21rs:main1
145218991411,2cyclictest458908-21kthreadcore12:10:161
145218991411,2cyclictest384237-21/usr/sbin/munin11:00:151
145218991411,2cyclictest384237-21/usr/sbin/munin11:00:151
145218991411,2cyclictest229161-21kworker/u8:4+flush-259:008:40:101
145215991413,1cyclictest60350irq/132-enp0s29f1:rx-011:54:090
145215991413,1cyclictest60350irq/132-enp0s29f1:rx-010:05:220
145215991412,1cyclictest60350irq/132-enp0s29f1:rx-011:05:500
145215991412,1cyclictest60350irq/132-enp0s29f1:rx-010:29:230
145215991412,1cyclictest60350irq/132-enp0s29f1:rx-009:30:230
145215991412,1cyclictest60350irq/132-enp0s29f1:rx-008:25:220
145215991412,1cyclictest60350irq/132-enp0s29f1:rx-008:00:120
145215991412,1cyclictest0-21swapper/010:15:000
145215991411,2cyclictest60350irq/132-enp0s29f1:rx-010:30:120
145215991411,2cyclictest60350irq/132-enp0s29f1:rx-009:50:100
145215991411,2cyclictest60350irq/132-enp0s29f1:rx-008:30:190
145215991411,2cyclictest430551-21turbostat11:45:000
145215991411,2cyclictest352332-21kworker/u8:1+flush-259:010:40:210
145215991411,2cyclictest0-21swapper/007:55:000
14522499139,3cyclictest451479-21apt-get12:05:123
14522499137,4cyclictest471742-21cron12:25:013
14522499137,4cyclictest252-21systemd-journal11:44:553
145224991310,2cyclictest187188-21cpuspeed_turbos07:50:133
145224991310,2cyclictest0-21swapper/309:55:183
14522299139,2cyclictest0-21swapper/208:40:142
14522299138,4cyclictest234068-21latency_hist08:35:012
14522299137,4cyclictest306632-21fw_packets09:45:162
145222991311,1cyclictest279395-21needreboot09:15:212
145222991311,1cyclictest0-21swapper/212:29:592
145222991311,1cyclictest0-21swapper/211:35:002
145222991310,2cyclictest436190-21fschecks_time11:50:142
145222991310,2cyclictest342633-21cpuspeed_turbos10:20:152
145222991310,2cyclictest275440-21kworker/u8:0+flush-259:009:30:222
145222991310,2cyclictest155927-21latency_hist07:20:012
14521899139,3cyclictest316669-21apt-get09:55:091
145218991311,1cyclictest417666-21kthreadcore11:30:171
145215991311,2cyclictest61150irq/133-enp0s29f1:tx-010:45:170
145215991311,1cyclictest60350irq/132-enp0s29f1:rx-012:30:150
145215991311,1cyclictest60350irq/132-enp0s29f1:rx-008:50:260
14522499129,2cyclictest198090-21fschecks_count08:00:153
14522299129,2cyclictest270377-21cpuspeed_turbos09:10:122
14522299129,2cyclictest0-21swapper/208:05:152
14522299128,3cyclictest150292-21kworker/u8:0+flush-259:007:25:322
14521899129,2cyclictest342744-21fschecks_time10:20:171
145215991211,1cyclictest60350irq/132-enp0s29f1:rx-009:55:420
14522299118,2cyclictest467030-21cpuspeed_turbos12:20:142
14522299118,2cyclictest405044-21cpuspeed_turbos11:20:142
14522299108,1cyclictest0-21swapper/211:15:182
14522299108,1cyclictest0-21swapper/209:30:012
1452229996,2cyclictest401ktimers/210:50:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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