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2025-11-08 - 18:51

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot5s.osadl.org (updated Sat Nov 08, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
692390995238,10cyclictest231ktimers/107:55:161
692385994821,23cyclictest720433-21munin-plugin-st08:30:020
692393994738,5cyclictest796068-21unixbench_multi12:05:252
692390994737,7cyclictest741325-21fschecks_time09:30:171
692393994435,5cyclictest785883-21cron11:40:002
692393994433,7cyclictest728496-21grep08:50:262
69238599443,3cyclictest720654-21seq08:30:100
692385994334,4cyclictest791207-21sh11:55:010
692385994334,4cyclictest791207-21sh11:55:000
692398994232,7cyclictest750091-21fschecks_time09:55:163
692398994226,11cyclictest391ktimers/312:20:133
692390994235,4cyclictest785905-21sendmail11:40:011
692390994232,6cyclictest685313-21kworker/u8:1+events_unbound07:25:011
692385994235,4cyclictest754776-21idleruntime-cro10:10:000
69238599421,19cyclictest788156-21df_inode11:45:160
69238599421,11cyclictest806968-21cron12:40:000
692398994133,5cyclictest722119-21cron08:35:023
692393994129,8cyclictest758380-21sh10:20:012
69238599411,11cyclictest693625-21users07:10:260
69238599411,10cyclictest717929-21/usr/sbin/munin08:20:240
69238599411,10cyclictest706797-21apt-get07:50:150
692393994033,4cyclictest696349-21sendmail07:20:012
692390994029,7cyclictest0-21swapper/111:15:011
69238599401,9cyclictest705259-21fschecks_count07:45:170
692385994015,22cyclictest13950irq/36-mmc107:35:010
692385994012,2cyclictest0-21swapper/010:00:480
692385994012,2cyclictest0-21swapper/010:00:480
692385994011,4cyclictest765220-21sendmail10:40:000
69238599401,14cyclictest0-21swapper/009:35:270
69238599401,10cyclictest713399-21awk08:10:000
692385994010,3cyclictest0-21swapper/009:05:250
692398993932,4cyclictest758390-21munin-run10:20:013
692393993931,4cyclictest0-21swapper/209:25:252
692390993931,4cyclictest801658-21cron12:25:001
69238599398,9cyclictest715322-21apt-get08:15:130
69238599392,6cyclictest798232-21cron12:15:000
69238599391,9cyclictest760519-21grep10:25:180
69238599391,5cyclictest709586-21users07:55:290
69238599391,4cyclictest729185-21apt08:55:150
69238599391,3cyclictest778839-21sshd11:17:270
69238599391,11cyclictest774792-21/usr/sbin/munin11:05:220
69238599391,11cyclictest702254-21/usr/sbin/munin07:35:220
692393993828,5cyclictest0-21swapper/207:15:012
692390993829,6cyclictest751784-21fschecks_time10:00:161
692390993829,6cyclictest751784-21fschecks_time10:00:161
69238599389,5cyclictest783142-21date11:30:180
69238599389,4cyclictest780326-21unixbench_multi11:20:270
69238599388,7cyclictest762217-21grep10:30:170
69238599382,8cyclictest737060-21unixbench_singl09:15:260
69238599382,8cyclictest698030-21sshd07:25:000
69238599382,6cyclictest746231-21cron09:45:000
692385993818,16cyclictest0-21swapper/008:45:270
692385993813,22cyclictest767297-21fschecks_count10:45:170
692385993812,9cyclictest757002-21ls10:15:140
692385993811,6cyclictest215-21dbus-daemon11:41:080
69238599381,11cyclictest784522-21df_inode11:35:150
69238599381,11cyclictest699310-21tail07:25:290
69238599381,10cyclictest800643-21meminfo12:20:190
692398993730,4cyclictest756620-21latency_hist10:15:003
69239399373,4cyclictest0-21swapper/210:40:122
69238599378,4cyclictest767026-21cat10:45:010
69238599371,9cyclictest731899-21grep09:00:280
69238599371,8cyclictest713783-21grep08:10:190
692385993713,21cyclictest13650irq/42-30be0000.ethernet09:55:130
692385993712,4cyclictest0-21swapper/012:00:260
69238599371,14cyclictest0-21swapper/008:40:160
69238599371,13cyclictest0-21swapper/010:55:260
692398993621,11cyclictest391ktimers/308:45:143
692393993628,4cyclictest0-21swapper/210:55:282
692393993625,6cyclictest703164-21sendmail07:40:012
692390993628,5cyclictest789906-21fschecks_count11:50:171
692390993628,5cyclictest789906-21fschecks_count11:50:171
692390993626,6cyclictest730658-21sendmail09:00:001
69238599369,3cyclictest0-21swapper/011:14:080
69238599363,10cyclictest802111-21apt-get12:25:150
69238599362,8cyclictest0-21swapper/009:20:210
69238599362,6cyclictest746633-21grep09:45:160
69238599361,9cyclictest759633-21grep10:20:280
69238599361,7cyclictest792902-21cron12:00:000
69238599361,7cyclictest792902-21cron12:00:000
69238599361,7cyclictest769858-21unixbench_multi10:50:270
69238599361,10cyclictest804829-21tail12:30:260
69238599360,3cyclictest0-21swapper/011:00:260
692393993528,5cyclictest794772-21kworker/u8:2+events_unbound12:31:152
692393993528,5cyclictest769192-21kworker/u8:0+events_unbound10:50:582
692390993528,4cyclictest772027-21munin-run11:00:001
692390993527,4cyclictest0-21swapper/109:20:161
692390993524,7cyclictest0-21swapper/109:55:011
69238599357,4cyclictest796563-21latency_hist12:10:010
69238599354,5cyclictest0-21swapper/008:50:260
69238599351,9cyclictest782486-21grep11:30:000
69238599351,10cyclictest799945-21apt12:20:000
69238599351,10cyclictest742620-21awk09:35:010
69238599351,10cyclictest694360-21memory07:15:020
692385993510,4cyclictest734465-21fschecks_count09:10:170
692398993427,4cyclictest706098-21unixbench_multi07:45:273
692398993426,4cyclictest0-21swapper/307:30:003
692398993424,7cyclictest0-21swapper/308:40:383
692393993426,4cyclictest0-21swapper/208:30:182
692393993423,7cyclictest790739-21grep11:50:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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