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2026-09-06 - 02:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, 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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Sun Sep 06, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991180,7rtkit-daemon0-21swapper/120:16:431
25540991068,74cyclictest0-21swapper/221:21:372
25540991068,74cyclictest0-21swapper/221:21:372
25540991004,27cyclictest0-21swapper/221:00:522
33112980,5sleep03310-21grep22:26:240
2553799984,86cyclictest0-21swapper/020:41:540
2553799984,86cyclictest0-21swapper/020:41:540
2553799974,86cyclictest0-21swapper/023:01:040
2554099964,26cyclictest0-21swapper/222:08:062
2554099954,27cyclictest0-21swapper/220:07:592
2553799955,83cyclictest0-21swapper/019:46:330
2554099944,27cyclictest0-21swapper/222:31:042
2554099943,27cyclictest0-21swapper/218:21:152
25540999418,12cyclictest0-21swapper/220:31:052
2553799945,83cyclictest0-21swapper/020:04:170
2553799945,83cyclictest0-21swapper/020:04:170
2553799945,72cyclictest0-21swapper/020:56:240
2554099934,28cyclictest0-21swapper/220:51:142
2554099934,27cyclictest0-21swapper/222:13:202
2554099934,27cyclictest0-21swapper/220:05:142
2554099934,27cyclictest0-21swapper/220:05:142
2554099934,26cyclictest0-21swapper/222:26:022
25540999313,8cyclictest23694-21ssh22:58:242
2553799935,27cyclictest0-21swapper/017:36:300
2553799933,84cyclictest14615-21sed20:16:310
2553799933,34cyclictest0-21swapper/022:18:180
2554099924,29cyclictest0-21swapper/221:46:182
2554099924,27cyclictest0-21swapper/223:01:042
2554099924,26cyclictest0-21swapper/221:38:392
2554099924,26cyclictest0-21swapper/219:46:302
2554099924,26cyclictest0-21swapper/219:07:002
25540999218,12cyclictest0-21swapper/218:01:032
2553799924,81cyclictest0-21swapper/021:51:320
2553799923,81cyclictest0-21swapper/022:51:040
2554099914,26cyclictest0-21swapper/222:19:522
2554099913,26cyclictest0-21swapper/218:10:592
25540999121,14cyclictest0-21swapper/222:46:212
25540999121,14cyclictest0-21swapper/222:46:212
25540999112,21cyclictest0-21swapper/222:54:522
2553799916,25cyclictest0-21swapper/019:41:150
2553799915,9cyclictest1227-21runrttasks20:06:430
2554099905,26cyclictest0-21swapper/221:32:202
2554099904,79cyclictest0-21swapper/221:13:522
2554099904,28cyclictest0-21swapper/219:58:182
2554099904,26cyclictest0-21swapper/221:44:402
2554099904,26cyclictest0-21swapper/219:44:142
2553799905,78cyclictest0-21swapper/020:27:260
2553799905,25cyclictest0-21swapper/021:50:460
2553799904,79cyclictest0-21swapper/019:51:270
2553799903,80cyclictest0-21swapper/021:26:050
2553799903,80cyclictest0-21swapper/020:11:060
25537999012,12cyclictest0-21swapper/019:36:180
2554099894,27cyclictest0-21swapper/221:18:132
2554099894,27cyclictest0-21swapper/220:36:492
2554099894,17cyclictest0-21swapper/218:31:122
25540998933,48cyclictest26966-21tr21:26:062
25540998919,13cyclictest0-21swapper/218:11:112
2553799894,78cyclictest0-21swapper/022:41:000
2553799894,77cyclictest0-21swapper/021:11:160
2554099884,27cyclictest0-21swapper/221:56:062
2554099884,27cyclictest0-21swapper/221:04:092
2554099884,27cyclictest0-21swapper/219:37:092
2554099884,26cyclictest0-21swapper/221:51:222
2554099884,26cyclictest0-21swapper/220:21:202
2554099883,28cyclictest0-21swapper/217:49:032
2554099883,26cyclictest0-21swapper/220:15:372
2553799885,76cyclictest0-21swapper/022:00:060
2553799885,76cyclictest0-21swapper/021:39:520
2553799885,75cyclictest0-21swapper/022:36:170
2553799885,26cyclictest0-21swapper/021:41:290
2553799884,77cyclictest0-21swapper/022:23:420
2553799883,78cyclictest0-21swapper/021:31:090
2553799883,78cyclictest0-21swapper/020:46:220
2553799883,77cyclictest0-21swapper/022:48:090
2553799883,77cyclictest0-21swapper/022:48:090
2553799883,77cyclictest0-21swapper/021:20:170
2553799883,76cyclictest0-21swapper/017:41:190
2554099874,75cyclictest0-21swapper/222:25:502
2554099873,28cyclictest0-21swapper/220:16:232
2554099873,27cyclictest0-21swapper/222:39:042
25540998726,54cyclictest22878-21tune2fs18:36:172
2553799875,27cyclictest0-21swapper/020:38:520
2553799873,78cyclictest0-21swapper/022:31:110
2553799873,77cyclictest0-21swapper/019:56:000
2553799873,31cyclictest24799-21runrttasks20:32:050
2554099864,26cyclictest0-21swapper/222:41:152
2554099864,26cyclictest0-21swapper/222:03:302
2554099864,26cyclictest0-21swapper/222:03:302
2554099864,25cyclictest0-21swapper/221:07:102
2553799866,19cyclictest0-21swapper/020:51:330
2553799865,74cyclictest0-21swapper/022:09:510
2553799864,28cyclictest0-21swapper/022:11:230
2553799863,76cyclictest0-21swapper/021:09:150
2553799863,30cyclictest0-21swapper/022:59:000
2553799863,27cyclictest0-21swapper/020:23:510
2554099854,74cyclictest0-21swapper/218:26:322
25540998516,13cyclictest0-21swapper/220:46:272
2553799855,72cyclictest0-21swapper/021:24:030
2553799855,72cyclictest0-21swapper/021:24:030
2553799853,76cyclictest0-21swapper/019:21:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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