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2026-05-01 - 07:22

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #8

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 rackbslot8s (updated Fri May 01, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213877299175174,1cyclictest0-21swapper/121:08:351
21383232128113,9sleep20-21swapper/219:07:022
21383232128113,9sleep20-21swapper/219:07:012
21382582122107,10sleep10-21swapper/119:06:041
21382582122107,10sleep10-21swapper/119:06:041
21382982120106,9sleep50-21swapper/519:06:415
21382982120106,9sleep50-21swapper/519:06:415
21384442116101,10sleep00-21swapper/019:08:440
21384442116101,10sleep00-21swapper/019:08:440
21383102115100,10sleep70-21swapper/719:06:517
21383102115100,10sleep70-21swapper/719:06:517
2138249211499,10sleep30-21swapper/319:05:593
2138249211499,10sleep30-21swapper/319:05:583
2138383211399,9sleep40-21swapper/419:07:524
2138383211399,9sleep40-21swapper/419:07:524
2138272211399,9sleep60-21swapper/619:06:186
2138272211399,9sleep60-21swapper/619:06:186
213878699105103,2cyclictest0-21swapper/422:45:574
213878699103100,3cyclictest553-21snmpd00:14:424
2138796991020,101cyclictest0-21swapper/722:25:177
2138786991020,102cyclictest0-21swapper/423:35:154
21387819910299,3cyclictest553-21snmpd20:19:043
21387819910299,3cyclictest553-21snmpd19:11:133
2138772991020,100cyclictest0-21swapper/100:34:211
2138772991020,100cyclictest0-21swapper/100:25:171
2138796991010,99cyclictest0-21swapper/723:11:067
2138796991010,101cyclictest0-21swapper/719:37:007
2138796991010,100cyclictest0-21swapper/720:01:517
21387929910199,2cyclictest570-21ntpd22:46:586
21387929910199,2cyclictest553-21snmpd22:10:246
21387929910199,2cyclictest553-21snmpd19:54:086
21387929910198,2cyclictest553-21snmpd23:27:586
213879299101100,1cyclictest2250934-21kworker/6:222:43:476
213879299101100,1cyclictest2250934-21kworker/6:222:03:546
21387889910199,1cyclictest553-21snmpd00:35:155
213878899101100,1cyclictest2380318-21cat23:50:175
2138788991010,100cyclictest0-21swapper/521:48:315
21387869910199,2cyclictest553-21snmpd21:29:034
2138786991010,99cyclictest0-21swapper/420:58:144
2138786991010,101cyclictest0-21swapper/421:34:384
2138786991010,100cyclictest0-21swapper/400:24:364
21387819910199,2cyclictest553-21snmpd23:54:233
21387819910198,3cyclictest553-21snmpd22:27:373
21387819910198,3cyclictest553-21snmpd22:18:083
213878199101100,1cyclictest553-21snmpd23:12:433
21387779910198,2cyclictest553-21snmpd21:38:332
21387729910197,4cyclictest2330445-21cat23:05:161
213877299101100,1cyclictest553-21snmpd23:27:541
2138772991010,99cyclictest0-21swapper/119:23:441
2138772991010,101cyclictest0-21swapper/123:46:591
2138772991010,100cyclictest0-21swapper/121:36:031
2138772991010,100cyclictest0-21swapper/120:14:551
2138772991010,0cyclictest0-21swapper/100:07:091
21387699910199,2cyclictest553-21snmpd22:10:390
2138796991000,99cyclictest0-21swapper/722:20:057
2138796991000,99cyclictest0-21swapper/722:05:097
2138796991000,99cyclictest0-21swapper/721:04:537
2138796991000,99cyclictest0-21swapper/720:25:557
2138796991000,99cyclictest0-21swapper/720:20:487
2138796991000,99cyclictest0-21swapper/720:18:277
2138796991000,99cyclictest0-21swapper/719:57:057
2138796991000,99cyclictest0-21swapper/719:30:597
21387929910099,1cyclictest570-21ntpd21:26:586
21387929910099,1cyclictest553-21snmpd23:30:166
21387929910099,1cyclictest553-21snmpd20:59:236
21387929910099,1cyclictest553-21snmpd19:36:366
21387929910099,1cyclictest2395643-21kworker/6:000:32:076
21387929910099,1cyclictest2395643-21kworker/6:000:22:296
21387929910099,1cyclictest2395643-21kworker/6:000:16:206
21387929910099,1cyclictest2250934-21kworker/6:223:40:146
21387929910099,1cyclictest2250934-21kworker/6:223:24:256
21387929910099,1cyclictest2250934-21kworker/6:223:24:246
21387929910099,1cyclictest2250934-21kworker/6:223:11:556
21387929910099,1cyclictest2250934-21kworker/6:223:08:576
21387929910099,1cyclictest2250934-21kworker/6:223:02:486
21387929910099,1cyclictest2250934-21kworker/6:222:35:166
21387929910099,1cyclictest2250934-21kworker/6:222:30:246
21387929910099,1cyclictest2250934-21kworker/6:222:20:556
21387929910099,1cyclictest2250934-21kworker/6:221:57:396
21387929910099,1cyclictest2250934-21kworker/6:200:00:126
21387929910099,1cyclictest2190402-21kworker/6:121:31:476
21387929910099,1cyclictest2190402-21kworker/6:121:16:246
21387929910099,1cyclictest2190402-21kworker/6:121:13:366
21387929910099,1cyclictest2190402-21kworker/6:120:50:196
21387929910099,1cyclictest2136117-21kworker/6:220:10:106
21387929910098,2cyclictest2250934-21kworker/6:222:56:006
21387889910099,1cyclictest553-21snmpd23:01:565
21387889910099,1cyclictest553-21snmpd22:55:415
21387889910099,1cyclictest553-21snmpd22:18:325
21387889910099,1cyclictest553-21snmpd20:22:435
21387889910099,1cyclictest553-21snmpd20:19:155
21387889910097,2cyclictest553-21snmpd23:12:045
2138788991000,99cyclictest0-21swapper/520:45:405
2138788991000,1cyclictest0-21swapper/520:30:165
2138788991000,100cyclictest0-21swapper/500:26:245
2138788991000,100cyclictest0-21swapper/500:06:475
21387869910099,1cyclictest553-21snmpd23:55:494
21387869910099,1cyclictest553-21snmpd23:00:424
21387869910099,1cyclictest553-21snmpd22:51:564
21387869910099,1cyclictest553-21snmpd22:21:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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