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2025-12-11 - 17:49

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 Thu Dec 11, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
890617995347,4cyclictest951644-21kworker/u8:2+events_unbound10:15:580
890617995347,4cyclictest951644-21kworker/u8:2+events_unbound10:15:570
890626995243,5cyclictest922487-21munin-plugin-st08:40:012
890617995145,4cyclictest0-21swapper/011:25:130
890617995042,4cyclictest936168-21idleruntime-cro09:20:000
890626994925,19cyclictest939345-21grep09:25:262
890617994638,4cyclictest960238-21latency_hist10:30:000
890617994637,6cyclictest121ktimers/009:20:130
890617994536,5cyclictest943170-21auditctl09:40:000
890617994534,6cyclictest913083-21grep08:10:240
89062699445,3cyclictest311ktimers/207:40:122
890626994414,23cyclictest0-21swapper/209:20:002
89062199442,7cyclictest131rcu_preempt08:10:121
890617994437,4cyclictest901616-21sendmail07:40:000
89062699433,8cyclictest995786-21unixbench_multi12:10:252
89062699431,11cyclictest920317-21unixbench_multi08:30:262
890626994230,8cyclictest953415-21idleruntime-cro10:10:002
89062699421,9cyclictest1004128-21/usr/sbin/munin12:35:272
89062699421,10cyclictest962726-21/usr/sbin/munin10:35:222
89062699420,9cyclictest912066-21apt-get08:10:122
89062199426,6cyclictest24-21ksoftirqd/110:50:121
890621994221,6cyclictest944698-21kworker/u8:2+events_unbound09:55:171
890617994236,4cyclictest978903-21kworker/u8:1+events_unbound11:46:130
89062699412,11cyclictest915482-21awk08:20:002
89062699412,11cyclictest1000046-21/usr/sbin/munin12:25:182
89062699411,5cyclictest630-21snmpd08:48:082
890630994030,6cyclictest0-21swapper/311:50:003
890630994029,7cyclictest0-21swapper/311:00:003
89062699407,7cyclictest926597-21sort08:50:202
89062699404,4cyclictest988419-21meminfo11:50:212
890626994026,9cyclictest892626-21latency_hist07:15:022
89062699401,9cyclictest896024-21cron07:22:012
89062699401,7cyclictest970245-21sshd10:57:302
89062699401,6cyclictest954089-21meminfo10:10:182
890626994012,25cyclictest961930-21sh10:35:012
89062699401,11cyclictest987752-21awk11:50:002
89062699401,10cyclictest909719-21unixbench_singl08:00:252
890630993931,5cyclictest989450-21idleruntime-cro11:55:003
89062699394,5cyclictest893924-21sed07:15:262
89062699394,3cyclictest930769-21cron09:02:002
89062699393,4cyclictest998557-21irqstats12:20:162
89062699393,3cyclictest916028-21diskstats08:20:152
89062699392,9cyclictest975322-21grep11:10:262
89062699392,10cyclictest311ktimers/211:25:132
89062699391,8cyclictest968904-21latency_hist10:55:012
89062699391,6cyclictest990014-21irqstats11:55:182
89062699391,11cyclictest959075-21if_eth110:25:192
89062699391,10cyclictest991630-21perl12:00:172
89062699391,10cyclictest957064-21/usr/sbin/munin10:20:252
89062699391,10cyclictest907073-21/usr/sbin/munin07:55:182
890621993932,4cyclictest963326-21kworker/u8:1+events_unbound11:11:041
890617993933,4cyclictest963326-21kworker/u8:1+events_unbound10:46:000
890617993928,6cyclictest906724-21grep07:55:010
890630993831,4cyclictest953410-21cron10:10:003
89062699385,5cyclictest0-21swapper/209:51:402
890626993830,5cyclictest956823-21grep10:20:002
890626993830,5cyclictest956823-21grep10:20:002
89062699382,4cyclictest963889-21apt-get10:40:122
89062699382,11cyclictest946155-21grep09:45:272
89062699381,7cyclictest977085-21sed11:15:382
89062699381,7cyclictest971015-21/usr/sbin/munin11:00:152
89062699381,7cyclictest931396-21fschecks_count09:05:162
89062699381,7cyclictest931396-21fschecks_count09:05:162
89062699381,6cyclictest951315-21/usr/sbin/munin10:00:262
89062699381,6cyclictest937118-21/usr/sbin/munin09:20:212
89062699381,6cyclictest906457-21cron07:52:012
89062699381,5cyclictest911202-21/usr/sbin/munin08:05:222
89062699381,4cyclictest943968-21tr09:40:202
89062699381,4cyclictest942777-21users09:35:262
890626993813,22cyclictest918661-21unixbench_singl08:25:272
89062699381,11cyclictest997064-21ntp_states12:15:212
89062699381,11cyclictest982442-21cron11:33:002
89062699381,10cyclictest934039-21users09:10:272
89062699381,10cyclictest897061-21awk07:25:212
890630993729,4cyclictest0-21swapper/307:10:223
890630993728,6cyclictest974466-21fschecks_count11:10:163
890630993727,6cyclictest0-21swapper/312:35:003
890630993724,7cyclictest0-21swapper/307:40:263
89062699374,4cyclictest0-21swapper/209:55:172
89062699373,6cyclictest0-21swapper/211:37:372
89062699373,5cyclictest0-21swapper/207:49:542
89062699371,9cyclictest978196-21memory11:20:192
89062699371,9cyclictest978196-21memory11:20:192
89062699371,6cyclictest993207-21df12:05:162
89062699371,5cyclictest898211-21apt-get07:30:122
890621993730,4cyclictest997978-21latency_hist12:20:001
890621993727,7cyclictest923732-21grep08:40:271
89061799375,24cyclictest11-21ksoftirqd/009:30:010
890630993629,4cyclictest943172-21cron09:40:003
890630993627,5cyclictest919089-21munin-plugin-st08:30:013
890630993626,6cyclictest0-21swapper/308:25:013
89062699363,6cyclictest927958-21diskstats08:55:192
89062699362,6cyclictest901182-21unixbench_singl07:35:262
89062699362,12cyclictest1002667-21grep12:30:252
89062699361,9cyclictest985017-21memory11:40:192
89062699361,9cyclictest923419-21/usr/sbin/munin08:40:252
89062699361,8cyclictest940385-21ls09:30:202
89062699361,5cyclictest973466-21/usr/sbin/munin11:05:242
890621993628,5cyclictest922480-21sh08:40:011
890621993626,6cyclictest0-21swapper/107:15:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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