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2023-12-11 - 22:58

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #7

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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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.
Unexpectedly long latencies may be caused by SMIs
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 rackcslot7s.osadl.org (updated Mon Dec 11, 2023 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37460769911554,19cyclictest13-21ksoftirqd/008:47:580
3745829210281,14sleep10-21swapper/107:08:351
374608699983,10cyclictest0-21swapper/309:01:273
38544822930,5sleep30-21swapper/312:15:293
374608399933,87cyclictest0-21swapper/208:49:582
374585329371,15sleep30-21swapper/307:08:533
374608399923,51cyclictest1753-21gnome-shell09:46:272
374608399913,84cyclictest0-21swapper/211:47:592
3746083998779,5cyclictest0-21swapper/209:01:272
374581028462,14sleep20-21swapper/207:08:202
374561328363,13sleep00-21swapper/007:05:480
162399810,5rtkit-daemon0-21swapper/111:38:041
374608399802,9cyclictest1753-21gnome-shell08:01:272
162399750,5rtkit-daemon0-21swapper/111:53:201
162399740,6rtkit-daemon0-21swapper/111:24:171
162399730,5rtkit-daemon0-21swapper/112:33:371
162399730,5rtkit-daemon0-21swapper/112:16:231
3746086997114,17cyclictest1753-21gnome-shell11:06:583
162399700,5rtkit-daemon0-21swapper/111:27:361
3746079996860,5cyclictest0-21swapper/110:33:581
374608399643,52cyclictest1753-21gnome-shell07:31:582
3746083996418,42cyclictest3794033-21unin-run09:25:012
3746086996350,9cyclictest880898-21Xwayland07:31:273
374607699632,19cyclictest1753-21gnome-shell12:02:580
374607999621,19cyclictest1753-21gnome-shell09:43:581
374608699613,15cyclictest1753-21gnome-shell11:01:583
374608399612,54cyclictest1753-21gnome-shell10:19:582
3746083996120,35cyclictest3854587-21cat12:15:312
374607999613,50cyclictest880726-21firefox08:02:581
3746083996019,36cyclictest3769534-21ls08:15:012
374608399601,7cyclictest880898-21Xwayland11:01:272
3746083996017,38cyclictest3837101-21cat11:25:302
3746083996016,39cyclictest3783288-21seq08:54:582
374607699601,48cyclictest1753-21gnome-shell11:30:580
3746086995914,36cyclictest881316-21IPC3
3746083995920,34cyclictest3758114-21cat07:40:362
3746083995918,36cyclictest3761083-21cat07:50:222
3746083995915,39cyclictest3750407-21grep07:20:202
374607699591,52cyclictest1753-21gnome-shell10:39:580
374607699591,16cyclictest1753-21gnome-shell12:08:590
374608399581,52cyclictest880898-21Xwayland10:31:272
374607699581,52cyclictest1753-21gnome-shell10:50:580
3746083995717,35cyclictest3790083-21seq09:11:242
3746083995715,38cyclictest3857013-21seq12:22:302
374607699573,11cyclictest881335-21WRScene~ilder#111:46:270
3746083995638,13cyclictest1753-21gnome-shell10:10:582
3746083995617,33cyclictest3842472-21uname11:40:362
3746083995614,12cyclictest3763160-21which07:55:292
374607999564,47cyclictest881331-21Privileged14:31:441
3746079995639,13cyclictest1753-21gnome-shell09:51:581
374607699562,11cyclictest881253-21Renderer09:46:270
374607699561,51cyclictest1753-21gnome-shell11:23:580
162399560,8rtkit-daemon1622-21rtkit-daemon07:44:040
374608699552,12cyclictest1753-21gnome-shell11:13:583
374608699551,50cyclictest1753-21gnome-shell08:02:583
3746083995513,12cyclictest3748125-21cat07:15:032
3746083995512,13cyclictest0-21swapper/211:34:292
374607999553,48cyclictest0-21swapper/108:46:271
374607999553,48cyclictest0-21swapper/107:32:581
374607999552,48cyclictest880726-21firefox08:17:581
374607999552,10cyclictest1753-21gnome-shell11:48:581
374608699542,11cyclictest1753-21gnome-shell10:11:583
3746083995430,19cyclictest3832641-21munin-run11:15:012
3746083995414,12cyclictest3822327-21basename10:45:192
3746083995413,11cyclictest3776596-21seq08:35:102
374607999542,10cyclictest1753-21gnome-shell09:33:581
374607699542,10cyclictest881253-21Renderer11:01:270
374608699532,47cyclictest1753-21gnome-shell08:16:583
374608699532,45cyclictest1753-21gnome-shell10:32:583
374608699531,48cyclictest1753-21gnome-shell12:34:593
374608699531,47cyclictest1753-21gnome-shell07:27:583
3746083995337,12cyclictest1753-21gnome-shell08:34:582
3746083995337,12cyclictest1753-21gnome-shell08:34:582
3746083995320,28cyclictest3826040-21ls10:55:202
3746083995319,29cyclictest3821180-21load10:40:302
3746083995319,29cyclictest3821180-21load10:40:302
3746083995318,30cyclictest3814527-21sensors_temp10:20:382
3746083995313,11cyclictest3851677-21seq12:05:522
3746083995312,11cyclictest3766730-21sed08:05:322
3746083995312,11cyclictest3766730-21sed08:05:322
3746083995310,13cyclictest0-21swapper/211:10:022
374607999532,47cyclictest1753-21gnome-shell10:45:581
3746076995340,8cyclictest881253-21Renderer10:31:270
374607699532,9cyclictest1753-21gnome-shell12:13:590
374608699522,46cyclictest1753-21gnome-shell10:04:583
374608699521,11cyclictest3795853-21kworker/3:209:58:583
374608699521,11cyclictest1753-21gnome-shell08:28:583
374608699521,10cyclictest1753-21gnome-shell10:22:583
374608399529,13cyclictest880972-21Socket14:31:442
374608399522,9cyclictest3834092-21Classif~14:31:442
3746083995217,30cyclictest3847518-21interrupts11:55:302
3746083995216,31cyclictest3756393-21proc_pri07:35:352
374608399521,45cyclictest1753-21gnome-shell08:40:592
3746083995213,12cyclictest3790642-21cat09:15:162
3746083995213,10cyclictest3859029-21cut12:30:012
3746083995213,10cyclictest3859029-21cut12:30:012
3746083995212,11cyclictest3752531-21if_enp2s007:25:322
3746083995211,11cyclictest3774223-21cat08:25:412
374607999522,46cyclictest1753-21gnome-shell11:55:581
374607699528,5cyclictest141rcu_preempt11:45:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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