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2026-03-13 - 19:59

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 Fri Mar 13, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
725594995442,9cyclictest792655-21kworker/u8:0+events_unbound10:35:111
725588995416,24cyclictest0-21swapper/010:33:400
725602995327,22cyclictest786665-21grep10:00:223
725602995227,20cyclictest807324-21grep11:00:243
725602995010,27cyclictest782382-21grep09:50:153
725588995019,13cyclictest736809-21fschecks_time07:40:160
725588995018,13cyclictest802919-21/usr/sbin/munin10:50:110
725594994936,9cyclictest839902-21grep12:35:241
725588994910,23cyclictest833042-21timerwakeupswit12:15:250
725602994812,21cyclictest830233-21latency_hist12:10:013
725594994736,8cyclictest231ktimers/108:15:111
725588994740,4cyclictest744897-21grep08:05:010
725602994627,15cyclictest0-21swapper/311:20:003
725594994635,8cyclictest769388-21grep09:10:241
725588994610,19cyclictest0-21swapper/008:15:240
725588994610,18cyclictest0-21swapper/008:35:000
725602994535,6cyclictest754242-21chrt08:30:143
725602994518,24cyclictest727486-21latency_hist07:15:013
725588994525,11cyclictest0-21swapper/010:40:110
725588994519,9cyclictest807765-21latency_hist11:05:010
725602994326,13cyclictest752122-21cron08:25:003
725602994326,13cyclictest752122-21cron08:25:003
725602994321,18cyclictest778129-21grep09:35:233
72560299431,37cyclictest827381-21/usr/sbin/munin12:00:213
72560299430,37cyclictest0-21swapper/309:25:113
725594994334,5cyclictest744877-21cron08:05:011
725594994330,10cyclictest231ktimers/109:00:121
725588994335,4cyclictest764052-21cron09:00:010
725588994326,13cyclictest729770-21apt-get07:20:090
725588994318,20cyclictest739993-21/usr/sbin/munin07:50:100
725588994317,11cyclictest739907-21grep07:50:010
725602994234,5cyclictest736352-21munin-plugin-st07:40:023
725602994215,24cyclictest835494-21/usr/sbin/munin12:25:183
72560299421,38cyclictest756278-21/usr/sbin/munin08:35:183
72560299421,35cyclictest0-21swapper/309:15:133
725594994231,8cyclictest757245-21sendmail08:40:001
725588994216,9cyclictest0-21swapper/012:25:220
72560299411,35cyclictest818561-21/usr/sbin/munin11:35:193
72560299411,35cyclictest818561-21/usr/sbin/munin11:35:183
72560299410,34cyclictest0-21swapper/307:45:113
725588994134,4cyclictest840367-21latency_hist12:40:000
725588994130,7cyclictest771767-21apt-get09:20:130
725588994129,9cyclictest734873-21/usr/sbin/munin07:35:120
725588994127,11cyclictest826331-21cron11:58:000
725588994125,3cyclictest820696-21sensors_temp11:40:230
725588994125,3cyclictest820696-21sensors_temp11:40:230
725588994118,18cyclictest750870-21fschecks_time08:20:140
725588994118,18cyclictest750870-21fschecks_time08:20:140
725588994114,23cyclictest0-21swapper/009:15:010
725602994028,7cyclictest824807-21debian-sa111:54:593
72560299401,36cyclictest733506-21/usr/sbin/munin07:30:163
725594994030,6cyclictest737648-21unixbench_singl07:40:251
725588994029,7cyclictest811064-21cron11:14:000
725588994028,9cyclictest808268-21/usr/sbin/munin11:05:160
725588994028,9cyclictest770043-21munin-node09:15:120
725588994027,9cyclictest747677-21/usr/sbin/munin08:10:180
725588994027,10cyclictest791448-21/usr/sbin/munin10:15:190
725588994026,10cyclictest816523-21/usr/sbin/munin11:30:120
725588994020,16cyclictest818451-21cut11:35:160
725588994020,16cyclictest818451-21cut11:35:160
72560299392,30cyclictest807992-21apt-get11:05:113
72560299391,35cyclictest763194-21/usr/sbin/munin08:55:223
72560299391,34cyclictest742364-21/usr/sbin/munin07:55:223
72560299391,32cyclictest810327-21/usr/sbin/munin11:10:233
72560299391,32cyclictest805269-21/usr/sbin/munin10:55:233
725602993910,25cyclictest784898-21grep09:55:243
725594993930,4cyclictest0-21swapper/112:20:011
725594993929,5cyclictest727313-21cron07:15:011
725594993928,8cyclictest231ktimers/111:15:111
725588993929,7cyclictest777075-21munin-node09:35:090
725588993927,9cyclictest726265-21/usr/sbin/munin07:10:190
725588993926,10cyclictest773703-21fw_packets09:25:160
725588993925,11cyclictest775487-21df_inode09:30:130
725588993925,10cyclictest794350-21/usr/sbin/munin10:25:100
725588993924,12cyclictest782718-21/usr/sbin/munin09:50:190
725588993920,17cyclictest729464-21sshd07:19:220
725588993916,19cyclictest761259-21latency08:50:190
725602993827,8cyclictest838664-21auditctl12:35:003
72560299382,31cyclictest834129-21/usr/sbin/munin12:20:153
72560299382,31cyclictest791167-21/usr/sbin/munin10:15:153
725602993816,18cyclictest0-21swapper/311:35:003
72560299381,34cyclictest832374-21/usr/sbin/munin12:15:163
72560299381,34cyclictest759631-21/usr/sbin/munin08:45:203
72560299381,32cyclictest801435-21/usr/sbin/munin10:45:163
72560299381,32cyclictest740203-21/usr/sbin/munin07:50:153
72560299381,31cyclictest819938-21apt-get11:40:113
72560299381,31cyclictest819938-21apt-get11:40:113
72560299380,36cyclictest0-21swapper/309:30:113
725597993830,4cyclictest727331-21idleruntime-cro07:15:012
725588993828,7cyclictest801619-21/usr/sbin/munin10:45:190
725588993828,7cyclictest783906-21/usr/sbin/munin09:55:130
725588993828,7cyclictest733289-21diskstats07:30:140
725588993826,9cyclictest815160-21/usr/sbin/munin11:25:180
725588993826,9cyclictest757477-21munin-node08:40:100
725588993826,8cyclictest785939-21/usr/sbin/munin10:00:140
725588993825,10cyclictest787639-21/usr/sbin/munin10:05:140
725588993824,8cyclictest823664-21/usr/sbin/munin11:50:170
725588993823,10cyclictest778933-21/usr/sbin/munin09:40:150
725588993823,10cyclictest752419-21/usr/sbin/munin08:25:150
725588993823,10cyclictest752419-21/usr/sbin/munin08:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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