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2026-09-02 - 00:14

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 Tue Sep 01, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1452090995520,11cyclictest1469354-21sed07:55:233
1452090994936,9cyclictest391ktimers/312:35:123
1452090994936,9cyclictest391ktimers/312:35:123
1452078994940,5cyclictest0-21swapper/009:20:000
1452078994940,5cyclictest0-21swapper/009:20:000
1452090994820,11cyclictest1502174-21sed09:30:243
1452090994738,5cyclictest1486947-21idleruntime-cro08:50:003
1452090994719,11cyclictest1538172-21cat11:15:203
1452082994733,10cyclictest231ktimers/109:45:131
1452078994640,4cyclictest1558297-21kworker/u8:2+events_unbound12:20:130
1452082994537,5cyclictest1511232-21munin-run10:00:001
1452078994537,6cyclictest121ktimers/007:45:140
1452078994436,5cyclictest1558297-21kworker/u8:2+events_unbound12:15:120
1452078994415,6cyclictest131rcu_preempt10:15:130
1452090994333,5cyclictest1535770-21apt-get11:10:123
1452090994332,8cyclictest1556872-21apt-get12:10:133
1452090994319,8cyclictest1509756-21/usr/sbin/munin09:55:213
1452087994333,7cyclictest1453866-21munin-node07:15:012
1452078994335,5cyclictest1490222-21kworker/u8:1+events_unbound08:59:310
1452090994229,9cyclictest1474760-21sshd08:12:283
1452090994229,10cyclictest1458782-21/usr/sbin/munin07:25:233
1452090994128,10cyclictest1563071-21/usr/sbin/munin12:25:263
1452090994128,10cyclictest1563071-21/usr/sbin/munin12:25:253
1452090994126,10cyclictest1544772-21/usr/sbin/munin11:35:143
1452090994126,10cyclictest1503712-21/usr/sbin/munin09:35:253
1452090994126,10cyclictest1457080-21/usr/sbin/munin07:20:253
1452087994127,10cyclictest311ktimers/208:50:132
1452082994132,7cyclictest231ktimers/111:30:131
1452090994033,4cyclictest1475222-21apt-get08:15:143
1452090994032,4cyclictest1463294-21apt-get07:40:123
1452090994030,7cyclictest1539519-21/usr/sbin/munin11:20:143
1452090994028,9cyclictest1521580-21sshd10:26:193
1452090994028,9cyclictest1484488-21/usr/sbin/munin08:40:253
1452090994028,8cyclictest1525730-21/usr/sbin/munin10:40:163
1452090994026,11cyclictest1532965-21/usr/sbin/munin11:00:233
1452090994026,11cyclictest1470786-21/usr/sbin/munin08:00:243
1452090994026,11cyclictest1470786-21/usr/sbin/munin08:00:243
1452090994024,11cyclictest1465110-21/usr/sbin/munin07:45:163
1452090994023,12cyclictest1523586-21cron10:35:003
1452090994022,14cyclictest1478414-21idleruntime-cro08:25:013
1452090994021,14cyclictest1544055-21head11:30:293
1452090994019,16cyclictest1554536-21grep12:00:253
1452090994019,16cyclictest1461489-21latency_hist07:35:013
1452082994012,4cyclictest131rcu_preempt09:35:131
1452078994027,9cyclictest1512740-21grep10:00:280
1452078994025,5cyclictest1521543-21kworker/u8:0+events_unbound10:30:120
1452090993929,7cyclictest1535150-21users11:05:283
1452090993929,7cyclictest1461577-21apt-get07:35:143
1452090993929,6cyclictest0-21swapper/308:40:013
1452090993928,7cyclictest1561749-21sh12:25:003
1452090993928,7cyclictest0-21swapper/310:40:003
1452090993927,9cyclictest1547563-21timerwakeupswit11:40:263
1452090993927,9cyclictest1517116-21/usr/sbin/munin10:15:183
1452090993927,9cyclictest1455097-21/usr/sbin/munin07:15:203
1452090993927,7cyclictest1529211-21/usr/sbin/munin10:50:173
1452090993927,7cyclictest1529211-21/usr/sbin/munin10:50:173
1452090993926,10cyclictest1491771-21/usr/sbin/munin09:00:243
1452090993925,10cyclictest1452243-21/usr/sbin/munin07:10:123
1452090993923,12cyclictest1555466-21if_eth012:05:173
1452090993922,12cyclictest1494381-21fschecks_count09:10:153
1452087993931,4cyclictest0-21swapper/210:29:522
1452082993927,9cyclictest1453819-21apt-key07:15:021
1452078993929,7cyclictest1473277-21cron08:10:010
1452078993928,8cyclictest1554931-21auditctl12:05:000
1452090993831,3cyclictest1499541-21apt-get09:25:173
1452090993829,6cyclictest1508581-21/usr/sbin/munin09:50:223
1452090993828,7cyclictest1492499-21/usr/sbin/munin09:05:143
1452090993827,8cyclictest1548683-21/usr/sbin/munin11:45:173
1452090993827,8cyclictest1541619-21/usr/sbin/munin11:25:173
1452090993827,8cyclictest1541619-21/usr/sbin/munin11:25:173
1452090993827,8cyclictest1513838-21/usr/sbin/munin10:05:193
1452090993827,7cyclictest0-21swapper/309:19:363
1452090993827,7cyclictest0-21swapper/309:19:363
1452090993827,6cyclictest391ktimers/310:00:153
1452090993826,9cyclictest1563852-21/usr/sbin/munin12:30:163
1452090993826,9cyclictest1563852-21/usr/sbin/munin12:30:163
1452090993826,9cyclictest1518790-21/usr/sbin/munin10:20:163
1452090993826,7cyclictest1506487-21/usr/sbin/munin09:45:173
1452090993825,10cyclictest1487455-21/usr/sbin/munin08:50:173
1452090993824,10cyclictest1531722-21/usr/sbin/munin10:55:263
1452090993824,10cyclictest1531722-21/usr/sbin/munin10:55:263
1452090993823,12cyclictest1505329-21/usr/sbin/munin09:40:223
1452090993823,10cyclictest1550488-21/usr/sbin/munin11:50:203
1452090993821,13cyclictest1481355-21tail08:30:273
1452082993829,5cyclictest0-21swapper/107:25:151
1452082993826,8cyclictest1553219-21munin-plugin-st12:00:001
1452078993830,4cyclictest0-21swapper/011:50:050
1452078993828,7cyclictest1454052-21apt-config07:15:020
1452078993813,5cyclictest131rcu_preempt09:10:120
1452090993728,6cyclictest1489421-21/usr/sbin/munin08:55:183
1452090993727,7cyclictest1551865-21diskstats11:55:153
1452090993725,7cyclictest1466695-21/usr/sbin/munin07:50:133
1452090993724,10cyclictest1498075-21/usr/sbin/munin09:20:223
1452090993724,10cyclictest1498075-21/usr/sbin/munin09:20:213
1452090993724,10cyclictest1479767-21cron08:26:003
1452087993731,4cyclictest1451905-21kworker/u8:2+events_unbound07:19:122
1452087993727,6cyclictest1469866-21auditctl08:00:012
1452087993727,6cyclictest0-21swapper/209:25:002
1452087993727,6cyclictest0-21swapper/209:25:002
1452082993727,5cyclictest0-21swapper/108:54:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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