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2026-08-23 - 21:19

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 Sun Aug 23, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2654439995846,6cyclictest2732072-21kworker/u8:0+events_unbound11:15:092
2654443995444,6cyclictest2728743-21sh10:45:013
265444399531,33cyclictest2757480-21ntp_states12:05:233
2654436995245,5cyclictest2766748-21kworker/u8:1+events_unbound12:35:201
2654432995245,5cyclictest2687205-21kworker/u8:3+events_unbound09:09:380
2654443995141,6cyclictest2768618-21sendmail12:40:003
2654443995128,18cyclictest0-21swapper/309:20:243
2654443995040,6cyclictest2703157-21munin-plugin-st09:30:013
2654443995028,17cyclictest2742119-21grep11:20:253
2654443994919,27cyclictest2669694-21sort07:50:253
2654436994942,4cyclictest2723630-21munin-plugin-st10:30:011
2654432994940,5cyclictest2672021-21run-parts08:00:010
2654443994819,23cyclictest0-21swapper/309:30:163
2654432994842,4cyclictest2718103-21kworker/u8:2+events_unbound10:14:530
265444399461,2cyclictest0-21swapper/309:45:123
2654432994632,10cyclictest121ktimers/011:30:110
2654443994534,5cyclictest2721932-21idleruntime-cro10:25:013
265444399451,11cyclictest2673966-21apt-get08:05:133
265444399441,38cyclictest2753760-21/usr/sbin/munin11:55:163
2654443994413,29cyclictest2752089-21if_eth111:50:173
2654443994412,28cyclictest2744535-21/usr/sbin/munin11:30:223
2654432994438,4cyclictest2730310-21kworker/u8:2+events_unbound10:50:000
265444399432,35cyclictest2728975-21apt-get10:45:113
265444399432,35cyclictest2706802-21apt-get09:40:123
2654443994319,19cyclictest0-21swapper/308:55:263
265444399431,37cyclictest2725789-21/usr/sbin/munin10:35:173
265444399431,37cyclictest2722260-21df10:25:153
2654432994337,4cyclictest2706389-21kworker/u8:1+events_unbound09:44:450
2654432994316,5cyclictest131rcu_preempt10:40:010
265444399422,35cyclictest2681120-21/usr/sbin/munin08:25:153
265444399421,38cyclictest2693709-21/usr/sbin/munin09:00:243
2654436994232,7cyclictest2708718-21fschecks_time09:45:171
2654436994232,6cyclictest0-21swapper/110:50:161
2654436994231,7cyclictest0-21swapper/109:00:001
2654432994236,4cyclictest2672249-21kworker/u8:0+events_unbound08:04:260
2654432994236,4cyclictest2672249-21kworker/u8:0+events_unbound08:04:250
2654432994222,12cyclictest131rcu_preempt09:50:220
2654432994222,12cyclictest131rcu_preempt09:50:220
2654432994220,10cyclictest131rcu_preempt08:59:350
265444399413,34cyclictest2687373-21apt-get08:45:033
2654443994128,10cyclictest391ktimers/312:20:113
265444399411,37cyclictest2750810-21/usr/sbin/munin11:45:263
265444399411,37cyclictest2666511-21/usr/sbin/munin07:40:253
265444399411,35cyclictest2705712-21/usr/sbin/munin09:35:233
265444399411,35cyclictest2663818-21cstates07:35:133
265443299419,21cyclictest131rcu_preempt08:30:000
2654432994135,4cyclictest2683810-21kworker/u8:1+events_unbound08:39:330
265444399403,34cyclictest2662359-21irqstats07:30:203
265444399401,4cyclictest0-21swapper/311:00:123
265444399401,36cyclictest2759140-21/usr/sbin/munin12:10:203
265444399401,36cyclictest2695314-21/usr/sbin/munin09:05:243
265444399401,36cyclictest2670804-21/usr/sbin/munin07:55:183
265444399401,36cyclictest2660911-21/usr/sbin/munin07:25:223
265444399401,36cyclictest2658780-21/usr/sbin/munin07:20:183
265444399401,34cyclictest2675773-21/usr/sbin/munin08:10:153
265444399401,34cyclictest2672470-21/usr/sbin/munin08:00:173
265444399401,34cyclictest2672470-21/usr/sbin/munin08:00:163
265444399400,2cyclictest0-21swapper/307:45:143
2654439994033,4cyclictest2692680-21cron09:00:002
265444399393,25cyclictest2724417-21ntp_states10:30:213
265444399392,32cyclictest2697333-21tail09:10:263
2654443993918,18cyclictest2656729-21sort07:15:053
265444399391,35cyclictest2743560-21/usr/sbin/munin11:25:243
265444399391,35cyclictest2712016-21df_inode09:55:153
265444399391,35cyclictest2712016-21df_inode09:55:153
265444399391,35cyclictest2684277-21cstates08:35:143
265444399391,33cyclictest2732468-21/usr/sbin/munin10:55:143
265444399391,33cyclictest2679086-21apt-get08:20:143
265444399391,32cyclictest2763887-21fschecks_count12:25:163
265444399391,32cyclictest2763887-21fschecks_count12:25:153
265444399391,32cyclictest2677364-21apt-get08:15:143
265444399391,2cyclictest0-21swapper/308:40:123
265444399390,4cyclictest0-21swapper/310:05:113
265444399390,3cyclictest0-21swapper/311:40:143
2654439993929,6cyclictest0-21swapper/211:40:002
2654436993932,4cyclictest2737268-21munin-plugin-st11:10:001
2654436993929,6cyclictest0-21swapper/110:35:261
2654432993925,4cyclictest131rcu_preempt11:28:250
2654432993924,4cyclictest131rcu_preempt11:55:400
2654432993919,10cyclictest131rcu_preempt09:10:030
265444399381,34cyclictest2760302-21/usr/sbin/munin12:15:123
265444399381,34cyclictest2746566-21/usr/sbin/munin11:35:153
265444399381,34cyclictest2698819-21/usr/sbin/munin09:15:273
265444399381,33cyclictest2730437-21cron10:50:013
265444399381,32cyclictest2735776-21sshd11:05:023
265444399381,32cyclictest2717020-21munin-node10:10:113
265444399381,32cyclictest2654779-21fschecks_time07:10:153
2654443993811,24cyclictest2739200-21/usr/sbin/munin11:15:233
2654439993829,6cyclictest2715082-21cron10:05:002
2654432993819,6cyclictest131rcu_preempt07:35:230
2654432993817,12cyclictest131rcu_preempt09:30:240
265444399372,32cyclictest2765427-21apt-get12:30:143
265444399372,32cyclictest2765427-21apt-get12:30:143
265444399371,5cyclictest0-21swapper/308:50:113
265444399371,5cyclictest0-21swapper/308:50:113
265444399371,3cyclictest2713621-21apt-get10:00:123
265444399371,33cyclictest2737946-21meminfo11:10:203
265444399371,33cyclictest2710312-21df_inode09:50:143
265444399371,33cyclictest2710312-21df_inode09:50:143
265444399371,31cyclictest2755199-21apt-get12:00:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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