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2025-12-23 - 21:39

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 Dec 23, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2698647995828,26cyclictest2810873-21grep12:30:251
2698647995622,29cyclictest2760563-21grep10:05:251
2698643995448,4cyclictest2778191-21kworker/u8:0+events_unbound11:06:140
2698652994740,5cyclictest2714309-21kworker/u8:0+events_unbound07:55:422
2698655994638,5cyclictest2785321-21munin-run11:19:593
2698643994640,4cyclictest2771377-21kworker/u8:2+events_unbound10:41:090
2698655994536,5cyclictest2740329-21apt09:10:003
2698655994533,8cyclictest2702603-21sendmail07:20:013
2698647994536,5cyclictest2776778-21cron10:55:011
2698655994434,6cyclictest2786568-21unixbench_multi11:20:263
2698647994411,3cyclictest0-21swapper/112:20:151
2698643994435,6cyclictest2791740-21grep11:35:290
2698647994331,9cyclictest231ktimers/109:05:141
2698647994330,9cyclictest2736904-21cron09:00:011
2698647994313,8cyclictest204-21dbus-daemon07:45:371
2698647994313,25cyclictest0-21swapper/112:00:251
2698643994336,5cyclictest2755591-21kworker/u8:3+events_unbound09:56:030
2698655994234,4cyclictest2795772-21idleruntime-cro11:49:593
2698647994222,16cyclictest0-21swapper/112:11:321
2698647994222,16cyclictest0-21swapper/112:11:321
2698647994217,22cyclictest0-21swapper/108:50:211
2698647994214,24cyclictest0-21swapper/111:20:001
2698647994211,3cyclictest0-21swapper/108:35:201
2698655994129,8cyclictest2760590-21grep10:05:263
2698652994133,5cyclictest2812610-21unixbench_singl12:35:272
2698647994113,4cyclictest231ktimers/110:25:131
2698647994112,4cyclictest2761414-21fschecks_count10:10:161
2698647994111,4cyclictest2710646-21unixbench_multi07:40:251
269864799411,12cyclictest2719652-21munin-plugin-st08:10:011
269864799411,11cyclictest2724947-21grep08:25:011
2698647994110,6cyclictest0-21swapper/110:00:011
2698643994130,7cyclictest2720880-21grep08:10:260
2698652994031,5cyclictest0-21swapper/208:15:422
269864799402,9cyclictest2794463-21fschecks_count11:45:161
2698647994014,3cyclictest0-21swapper/109:20:141
2698647994010,26cyclictest0-21swapper/111:40:001
2698655993929,7cyclictest208-21systemd-logind11:11:143
2698655993928,5cyclictest0-21swapper/308:20:173
269864799399,7cyclictest2701557-21meminfo07:15:181
2698647993931,4cyclictest0-21swapper/109:39:591
269864799392,10cyclictest2721339-21cron08:15:011
2698647993912,4cyclictest2732199-21fschecks_count08:45:171
269864799391,12cyclictest2751874-21wc09:40:241
2698647993910,6cyclictest0-21swapper/109:15:151
2698643993933,4cyclictest2797164-21kworker/u8:1+events_unbound11:56:320
2698652993832,4cyclictest2735020-21kworker/u8:1+events_unbound09:00:532
2698652993811,4cyclictest0-21swapper/211:05:122
2698647993813,3cyclictest2740186-21kworker/u8:1+events_unbound09:25:181
2698647993813,3cyclictest2740186-21kworker/u8:1+events_unbound09:25:181
2698647993810,3cyclictest0-21swapper/108:00:151
2698643993831,4cyclictest2779787-21unixbench_singl11:00:260
2698643993829,4cyclictest0-21swapper/012:35:160
2698652993727,7cyclictest2779797-21grep11:00:262
2698647993729,5cyclictest0-21swapper/110:45:151
269864799371,11cyclictest2777872-21grep10:55:271
269864799371,11cyclictest2764450-21awk10:20:011
2698643993727,6cyclictest0-21swapper/012:25:010
2698652993627,6cyclictest2763162-21fschecks_time10:15:162
269864799361,12cyclictest2812595-21grep12:35:271
269864799361,11cyclictest2704291-21cron07:25:001
2698643993627,6cyclictest121ktimers/012:00:130
2698643993626,6cyclictest0-21swapper/011:40:160
2698643993621,6cyclictest131rcu_preempt10:05:140
2698655993525,6cyclictest0-21swapper/310:45:003
2698652993529,4cyclictest2795404-21kworker/u8:3+events_unbound11:46:262
2698652993527,4cyclictest0-21swapper/208:05:172
2698652993526,4cyclictest0-21swapper/209:10:002
2698652993525,6cyclictest0-21swapper/208:45:252
269864799356,5cyclictest2771486-21idleruntime-cro10:39:591
269864799353,6cyclictest0-21swapper/111:00:251
2698647993511,5cyclictest231ktimers/107:10:161
269864799351,11cyclictest2709395-21cron07:40:011
2698643993529,4cyclictest2768855-21kworker/u8:2+events_unbound10:31:090
2698643993529,3cyclictest0-21swapper/007:40:000
2698643993523,8cyclictest151rcuc/011:25:120
2698643993522,9cyclictest2722605-21grep08:15:250
2698643993521,5cyclictest131rcu_preempt10:39:590
2698643993521,3cyclictest131rcu_preempt12:31:000
269864399351,8cyclictest0-21swapper/009:35:140
2698655993425,5cyclictest0-21swapper/309:35:273
2698655993423,7cyclictest2757124-21tail09:55:263
2698655993423,7cyclictest0-21swapper/308:05:253
269864799345,6cyclictest0-21swapper/111:10:151
2698647993426,4cyclictest0-21swapper/108:40:161
2698647993411,6cyclictest231ktimers/111:20:141
2698643993428,4cyclictest2802227-21kworker/u8:0+events_unbound12:11:330
2698643993428,4cyclictest2802227-21kworker/u8:0+events_unbound12:11:330
2698643993424,6cyclictest2753785-21unixbench_singl09:45:230
2698643993422,8cyclictest2716235-21cut08:00:010
2698643993420,9cyclictest2768054-21ls10:30:000
2698655993323,7cyclictest2734773-21grep08:50:273
2698655993322,8cyclictest2790431-21sh11:35:013
2698652993327,4cyclictest2799200-21idleruntime-cro11:59:592
2698652993321,7cyclictest0-21swapper/209:20:242
269864799339,5cyclictest0-21swapper/110:30:191
269864799331,8cyclictest2805784-21head12:15:261
269864799331,5cyclictest2758846-21grep10:00:241
2698647993312,4cyclictest0-21swapper/111:05:211
2698647993312,3cyclictest0-21swapper/107:30:271
269864399335,15cyclictest11-21ksoftirqd/012:06:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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