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2026-07-27 - 08:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Mon Jul 27, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1968921430,1sleep00-21swapper/020:53:450
1968921430,1sleep00-21swapper/020:53:450
2162921220,3chrt0-21swapper/222:23:522
2162921220,3chrt0-21swapper/222:23:522
1487821200,2sleep10-21swapper/123:33:451
2838021040,2chrt0-21swapper/000:08:500
2838021040,2chrt0-21swapper/000:08:500
319772900,3chrt0-21swapper/100:18:481
319772900,3chrt0-21swapper/100:18:481
133152690,4sleep013313-21users20:33:550
133152690,4sleep013313-21users20:33:550
322062600,2sleep00-21swapper/000:18:510
322062600,2sleep00-21swapper/000:18:510
205052580,3sleep10-21swapper/123:48:451
205052580,3sleep10-21swapper/123:48:451
192482560,2chrt19229-21processes23:43:530
192482560,2chrt19229-21processes23:43:530
285692530,3chrt0-21swapper/222:43:452
285692530,3chrt0-21swapper/222:43:452
27262530,2chrt0-21swapper/300:28:393
27262530,2chrt0-21swapper/300:28:393
14908994617,16cyclictest18013-21taskset23:41:280
14908994617,16cyclictest18013-21taskset23:41:280
142602460,3sleep20-21swapper/222:03:542
142602460,3sleep20-21swapper/222:03:542
14908994515,11cyclictest24230-21chrt22:31:410
14908994515,11cyclictest24230-21chrt22:31:410
14908994515,10cyclictest14773-21taskset22:05:120
14908994515,10cyclictest14773-21taskset22:05:120
141592450,3sleep114258-21grep22:03:541
141592450,3sleep114258-21grep22:03:541
14908994417,10cyclictest16619-21seq22:09:590
14908994417,10cyclictest16619-21seq22:09:590
14908994417,10cyclictest16619-21seq22:09:590
14908994415,11cyclictest27460-21taskset00:07:330
14908994415,11cyclictest27460-21taskset00:07:330
14908994415,11cyclictest22788-21chrt21:00:040
14913994315,11cyclictest12443-21taskset23:27:081
14913994315,11cyclictest12443-21taskset23:27:081
14913994314,11cyclictest26658-21taskset21:11:421
14913994314,11cyclictest26658-21taskset21:11:421
14913994314,11cyclictest14093-21taskset23:29:021
14913994314,11cyclictest14093-21taskset23:29:021
14908994318,7cyclictest27110-21chrt19:44:550
14908994318,7cyclictest27110-21chrt19:44:550
14908994317,7cyclictest28989-21taskset19:50:090
14908994317,7cyclictest28989-21taskset19:50:090
14908994317,10cyclictest11769-21taskset20:32:500
14908994317,10cyclictest11769-21taskset20:32:500
14908994316,10cyclictest4924-21taskset23:07:150
14908994316,10cyclictest4924-21taskset23:07:150
14908994315,10cyclictest12523-21chrt23:28:090
14908994315,10cyclictest12523-21chrt23:28:090
14908994314,11cyclictest29955-21chrt22:48:140
14908994314,11cyclictest29955-21chrt22:48:140
14908994314,10cyclictest24597-21chrt21:04:060
14908994314,10cyclictest24597-21chrt21:04:060
113302430,2sleep30-21swapper/323:23:463
113302430,2sleep30-21swapper/323:23:463
14913994213,10cyclictest31503-21taskset22:49:101
14913994213,10cyclictest31503-21taskset22:49:101
14913994212,11cyclictest6166-21seq00:36:151
14913994212,11cyclictest6166-21seq00:36:151
14913994211,13cyclictest4675-21taskset23:04:011
14913994211,13cyclictest4675-21taskset23:04:011
14908994218,10cyclictest2249-21taskset20:06:090
14908994218,10cyclictest2249-21taskset20:06:090
14908994216,9cyclictest32398-21taskset21:28:100
14908994216,9cyclictest32398-21taskset21:28:100
14908994216,9cyclictest1048-21chrt22:55:410
14908994216,9cyclictest1048-21chrt22:55:410
14908994216,14cyclictest25637-21chrt00:03:270
14908994216,14cyclictest25637-21chrt00:03:270
14908994216,11cyclictest23706-21chrt23:57:320
14908994216,11cyclictest23466-21seq19:36:140
14908994216,10cyclictest3960-21chrt20:09:150
14908994216,10cyclictest3960-21chrt20:09:150
14908994215,10cyclictest13016-21taskset22:02:180
14908994215,10cyclictest13016-21taskset22:02:180
14908994211,11cyclictest7468-21chrt21:48:080
14908994211,11cyclictest7468-21chrt21:48:080
14913994114,10cyclictest6738-21runrttasks23:11:171
14913994114,10cyclictest6738-21runrttasks23:11:171
14913994113,11cyclictest1620-21seq21:30:271
14913994113,11cyclictest1620-21seq21:30:271
14913994112,12cyclictest21467-21seq19:29:271
14913994112,11cyclictest25228-21taskset19:39:561
14913994112,11cyclictest25228-21taskset19:39:561
14908994134,5cyclictest700-21192.168.115.40-manager23:15:370
14908994134,5cyclictest700-21192.168.115.40-manager23:15:370
14908994117,9cyclictest27976-21taskset22:41:590
14908994117,7cyclictest26011-21chrt22:35:390
14908994117,7cyclictest26011-21chrt22:35:390
14908994116,9cyclictest2432-21chrt00:26:310
14908994116,9cyclictest2432-21chrt00:26:310
14908994116,8cyclictest14345-21chrt23:32:160
14908994116,8cyclictest14345-21chrt23:32:160
14908994116,6cyclictest18569-21chrt22:16:060
14908994116,6cyclictest18569-21chrt22:16:060
14908994115,7cyclictest3393-21taskset21:34:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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