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2025-11-24 - 15:22

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 Mon Nov 24, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1556750995445,6cyclictest299-21systemd-logind08:20:431
155674599500,3cyclictest0-21swapper/011:55:140
1556754994837,7cyclictest311ktimers/208:00:122
1556759994737,6cyclictest1623174-21idleruntime-cro10:20:003
155675499472,38cyclictest630-21snmpd11:45:132
1556750994736,7cyclictest0-21swapper/107:20:011
1556759994533,10cyclictest391ktimers/308:05:143
1556754994538,4cyclictest1556738-21cyclictest11:40:002
1556754994514,28cyclictest1629307-21sed10:35:252
155675499451,39cyclictest1631930-21apt-get10:45:142
155675499451,38cyclictest1602516-21apt-get09:20:122
1556750994536,6cyclictest1587074-21fschecks_count08:35:171
1556759994432,7cyclictest0-21swapper/312:36:233
155675499444,23cyclictest1584108-21ntp_states08:25:232
155675499441,40cyclictest1567757-21munin-node07:40:122
155675499441,25cyclictest1611822-21ntp_states09:45:242
155675499433,35cyclictest1664992-21/usr/sbin/munin12:20:182
155675499431,39cyclictest1630505-21/usr/sbin/munin10:40:182
155675499431,35cyclictest0-21swapper/209:00:122
155675499423,36cyclictest1586527-21cron08:33:012
155675499423,36cyclictest1578000-21cron08:08:012
1556754994231,7cyclictest1593510-21cron08:55:002
155675499422,37cyclictest1668522-21ntp_states12:30:202
155675499421,38cyclictest1626133-21/usr/sbin/munin10:25:262
155675499421,38cyclictest1607831-21/usr/sbin/munin09:35:172
155675499421,36cyclictest1615262-21/usr/sbin/munin09:55:222
155675499420,39cyclictest0-21swapper/208:15:122
155675499412,36cyclictest1601133-21/usr/sbin/munin09:15:192
155675499411,37cyclictest1648248-21/usr/sbin/munin11:30:242
155675499411,37cyclictest1620069-21/usr/sbin/munin10:10:162
155675499411,37cyclictest1573206-21/usr/sbin/munin07:55:162
155675499411,37cyclictest1565368-21/usr/sbin/munin07:30:262
155675499411,35cyclictest1638752-21apt-get11:05:152
155675499411,35cyclictest1571610-21memory07:50:202
155675499411,35cyclictest1557066-21/usr/sbin/munin07:10:172
155675499411,34cyclictest1662831-21apt-get12:15:122
155675499410,36cyclictest0-21swapper/212:35:122
155675499403,34cyclictest1562018-21users07:20:242
155675499402,35cyclictest1587267-21/usr/sbin/munin08:35:182
155675499402,32cyclictest1626809-21apt-get10:30:132
1556754994019,17cyclictest0-21swapper/210:55:152
155675499401,36cyclictest1623514-21df10:20:132
155675499401,36cyclictest1569907-21/usr/sbin/munin07:45:182
155675499401,36cyclictest1559210-21/usr/sbin/munin07:15:122
155675499401,34cyclictest1658574-21/usr/sbin/munin12:00:232
155675499401,34cyclictest1658574-21/usr/sbin/munin12:00:232
155675499401,34cyclictest1642259-21/usr/sbin/munin11:15:142
155675499401,33cyclictest1593753-21apt-get08:55:132
155675499401,33cyclictest1593753-21apt-get08:55:132
155675499400,34cyclictest0-21swapper/212:25:122
155675499400,33cyclictest0-21swapper/211:00:122
1556745994022,15cyclictest0-21swapper/011:25:010
1556759993929,6cyclictest1595216-21cron09:00:003
1556759993929,6cyclictest1595216-21cron08:59:593
155675499391,35cyclictest1654490-21/usr/sbin/munin11:50:172
155675499391,35cyclictest1647162-21cron11:29:012
155675499391,35cyclictest1604454-21/usr/sbin/munin09:25:182
155675499391,34cyclictest1640451-21apt-get11:10:142
155675499391,33cyclictest1566382-21/usr/sbin/munin07:35:192
155675499391,33cyclictest1564289-21latency_hist07:30:022
155675499391,32cyclictest1633628-21apt-get10:50:102
155675499390,34cyclictest0-21swapper/210:05:132
155675499390,34cyclictest0-21swapper/208:10:112
155675499390,33cyclictest0-21swapper/210:15:102
1556750993932,4cyclictest1650661-21munin-plugin-st11:40:001
1556750993910,14cyclictest24-21ksoftirqd/112:15:001
1556745993932,4cyclictest1609096-21munin-plugin-st09:40:000
1556759993829,6cyclictest1563708-21unixbench_singl07:25:273
1556759993828,6cyclictest1616143-21sendmail10:00:003
155675499382,33cyclictest1644944-21/usr/sbin/munin11:20:242
155675499381,34cyclictest1661830-21/usr/sbin/munin12:10:262
155675499381,34cyclictest1656585-21ntp_states11:55:232
155675499381,34cyclictest1616586-21apt-get10:00:152
155675499381,34cyclictest1606195-21/usr/sbin/munin09:30:162
155675499381,34cyclictest1597575-21/usr/sbin/munin09:05:202
155675499381,34cyclictest1590792-21/usr/sbin/munin08:45:202
155675499381,34cyclictest1581965-21/usr/sbin/munin08:20:172
155675499381,32cyclictest1650905-21munin-node11:40:122
155675499380,33cyclictest1609089-21apt-get09:40:052
155675499380,33cyclictest0-21swapper/209:50:132
155675499380,33cyclictest0-21swapper/209:50:132
1556750993825,4cyclictest131rcu_preempt07:45:141
1556745993832,4cyclictest1615774-21kworker/u8:1+events_unbound10:06:010
1556745993822,5cyclictest131rcu_preempt07:57:010
1556759993729,5cyclictest1567519-21cut07:40:013
1556759993727,5cyclictest0-21swapper/308:20:013
155675499371,33cyclictest1589058-21/usr/sbin/munin08:40:202
155675499370,31cyclictest0-21swapper/212:05:112
1556750993729,5cyclictest215-21dbus-daemon07:20:241
1556750993729,4cyclictest1609108-21apt-get09:40:001
1556750993712,10cyclictest1564637-21if_eth007:30:171
1556745993730,5cyclictest1640097-21kworker/u8:3+events_unbound11:26:180
1556745993718,4cyclictest131rcu_preempt08:40:250
1556745993716,4cyclictest131rcu_preempt09:17:020
1556759993626,6cyclictest0-21swapper/311:30:253
1556759993625,8cyclictest1601844-21grep09:15:263
1556750993626,6cyclictest0-21swapper/107:15:021
1556750993623,8cyclictest0-21swapper/108:45:181
1556750993614,7cyclictest1597993-21cat09:05:261
155674599366,21cyclictest11-21ksoftirqd/012:25:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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