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2025-07-01 - 08:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

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 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.
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 rack0slot6s.osadl.org (updated Tue Jul 01, 2025 00:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
379812799908,37cyclictest0-21swapper/219:15:0112
39134192820,0sleep90-21swapper/921:05:2119
58366220740,66data-loop.00-21swapper/819:05:1818
58366220720,70data-loop.00-21swapper/619:06:3716
58366620670,57data-loop.00-21swapper/1819:06:2810
58366220670,65data-loop.00-21swapper/419:05:0514
58366220660,64data-loop.00-21swapper/1619:06:348
58366220660,58data-loop.00-21swapper/319:09:3213
58366220650,63data-loop.00-21swapper/119:08:031
58366620640,62data-loop.00-21swapper/719:05:5017
58366220640,62data-loop.00-21swapper/1719:05:529
58366220640,62data-loop.00-21swapper/1419:09:406
58366220630,61data-loop.00-21swapper/1319:09:345
58366220630,61data-loop.00-21swapper/1119:05:033
58366220630,42data-loop.00-21swapper/1519:06:287
58366220590,52data-loop.00-21swapper/519:06:2815
58366220590,51data-loop.00-21swapper/919:07:0019
58366220550,53data-loop.00-21swapper/1019:09:232
58366220550,52data-loop.00-21swapper/1919:07:1011
58366220530,50data-loop.00-21swapper/019:09:180
58366220530,32data-loop.00-21swapper/219:05:5512
40799232520,1sleep17181-21ksoftirqd/1700:00:049
58366220510,46data-loop.00-21swapper/1219:07:144
3798141994627,0cyclictest0-21swapper/620:53:1016
3798141994627,0cyclictest0-21swapper/620:53:1016
379817599440,1cyclictest3866461-40tracker-miner-f20:17:0010
3798168994442,1cyclictest3900567-40tracker-miner-f20:54:588
3798168994442,1cyclictest3900567-40tracker-miner-f20:54:588
3798146994313,29cyclictest941irq_work/820:56:5518
3798146994313,29cyclictest941irq_work/820:56:5518
379814699430,34cyclictest3529454-21firefox21:00:1018
379814699430,34cyclictest3529454-21firefox21:00:0918
3798143994342,1cyclictest3861671-40tracker-miner-f20:11:4917
58366620420,1data-loop.00-21swapper/1722:50:149
379817599420,0cyclictest0-21swapper/1819:10:0310
3798157994140,0cyclictest0-21swapper/1223:18:004
379814199414,36cyclictest80-21ksoftirqd/623:10:1516
3798141994140,1cyclictest3862132-40tracker-miner-f20:15:0716
3798175994034,5cyclictest0-21swapper/1822:50:1410
3798173994013,27cyclictest1771irq_work/1720:25:339
3798157994038,1cyclictest1341rcuc/1219:55:064
3798141994040,0cyclictest0-21swapper/623:40:1816
3798141994039,0cyclictest0-21swapper/623:18:0016
379817599390,32cyclictest0-21swapper/1821:36:3410
3798160993918,0cyclictest0-21swapper/1321:11:365
3798157993939,0cyclictest0-21swapper/1220:15:074
3798148993938,1cyclictest0-21swapper/920:08:1019
3798141993937,1cyclictest0-21swapper/620:57:5616
3798141993937,1cyclictest0-21swapper/620:57:5516
58366620380,1data-loop.04082283-21ntpq00:00:1811
3798152993812,25cyclictest1121irq_work/1020:35:092
3798148993836,1cyclictest0-21swapper/920:58:1019
3798148993836,1cyclictest0-21swapper/920:58:1019
3798146993833,5cyclictest0-21swapper/821:09:2818
3798141993837,1cyclictest3813334-40tracker-miner-f19:22:5816
3798178993735,1cyclictest1336875-21thunderbird19:17:5311
379817899370,36cyclictest1336875-21thunderbird21:31:2011
3798175993729,7cyclictest0-21swapper/1819:23:5810
3798175993727,9cyclictest0-21swapper/1821:00:0910
3798175993727,9cyclictest0-21swapper/1821:00:0910
379817599370,3cyclictest3808478-40tracker-miner-f19:17:1110
379814899370,36cyclictest1336875-21thunderbird22:50:3919
3798146993732,5cyclictest0-21swapper/819:20:0418
3798141993737,0cyclictest0-21swapper/621:17:4616
58366620360,34data-loop.00-21swapper/523:12:1915
58366620360,33data-loop.00-21swapper/420:45:1014
3798178993634,1cyclictest3088164-21CPU11
379817899360,35cyclictest1336875-21thunderbird22:40:1411
379817899360,35cyclictest1336875-21thunderbird00:28:4211
379817899360,35cyclictest0-21swapper/1921:12:1011
379817899360,35cyclictest0-21swapper/1920:41:1211
379817899360,35cyclictest0-21swapper/1919:28:1011
379817899360,35cyclictest0-21swapper/1919:24:1011
379817599360,0cyclictest0-21swapper/1822:40:1410
3798168993632,3cyclictest4003000-21cut22:40:158
379816799369,27cyclictest0-21swapper/1520:33:107
3798157993635,1cyclictest3833140-40tracker-miner-f19:45:054
3798146993635,1cyclictest0-21swapper/819:35:0518
379814699360,1cyclictest0-21swapper/819:15:0318
379814699360,0cyclictest58366220data-loop.023:00:1018
379814699360,0cyclictest0-21swapper/820:13:0218
3798143993611,25cyclictest0-21swapper/720:15:0717
379812599360,34cyclictest4026744-21awk23:05:151
58366620350,33data-loop.00-21swapper/1722:28:439
58366620350,1data-loop.00-21swapper/1519:50:067
3798178993535,0cyclictest0-21swapper/1920:24:3111
3798178993535,0cyclictest0-21swapper/1919:40:4411
3798178993534,1cyclictest0-21swapper/1922:00:3311
3798178993533,1cyclictest0-21swapper/1919:50:0711
379817899350,34cyclictest0-21swapper/1920:39:1111
379817899350,0cyclictest0-21swapper/1919:30:0611
3798175993533,2cyclictest3910209-40tracker-miner-f21:05:1010
3798175993529,5cyclictest0-21swapper/1800:15:1010
3798175993529,5cyclictest0-21swapper/1800:15:1010
3798173993533,1cyclictest3088163-21CPU9
3798168993533,1cyclictest1336875-21thunderbird23:46:248
379816899350,33cyclictest3919409-40tracker-miner-f21:11:428
379816899350,33cyclictest1336611-21gnome-shell19:45:578
379816399351,1cyclictest993767-21CPU6
379816399350,34cyclictest3828441-40tracker-miner-f19:40:056
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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