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2025-12-13 - 02:36

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 Dec 12, 2025 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2087382143130,8sleep20-21swapper/219:08:062
2087552133118,9sleep10-21swapper/119:08:211
2086422131116,10sleep00-21swapper/019:06:430
2086072130115,10sleep50-21swapper/519:06:155
2086302124109,10sleep60-21swapper/619:06:336
2085992122107,10sleep70-21swapper/719:06:107
2067572122107,10sleep30-21swapper/319:05:093
2088622121107,9sleep40-21swapper/419:09:514
2091269910493,11cyclictest243-21kworker/7:122:00:537
2091159910399,3cyclictest3437785-21snmpd20:33:234
209097991030,1cyclictest0-21swapper/019:20:000
2091269910292,10cyclictest243-21kworker/7:120:46:137
2091159910299,3cyclictest3437785-21snmpd22:35:154
2091159910299,3cyclictest3437785-21snmpd20:36:234
2091159910299,3cyclictest3437785-21snmpd20:36:234
209115991020,102cyclictest0-21swapper/422:58:064
2091069910299,3cyclictest3437785-21snmpd23:42:382
2091069910299,3cyclictest3437785-21snmpd22:47:212
2091069910299,3cyclictest3437785-21snmpd19:10:392
2091069910299,2cyclictest3437785-21snmpd22:32:232
209106991020,101cyclictest0-21swapper/220:03:522
209097991020,101cyclictest0-21swapper/022:32:340
209097991020,0cyclictest0-21swapper/022:51:240
2091269910199,2cyclictest243-21kworker/7:123:52:587
20912699101100,1cyclictest243-21kworker/7:123:37:247
20912699101100,1cyclictest243-21kworker/7:123:02:307
20912699101100,1cyclictest243-21kworker/7:122:59:587
20912699101100,1cyclictest243-21kworker/7:122:35:207
20912699101100,1cyclictest243-21kworker/7:122:24:597
20912699101100,1cyclictest243-21kworker/7:122:06:167
20912699101100,1cyclictest243-21kworker/7:121:45:367
20912699101100,1cyclictest243-21kworker/7:121:30:527
20912699101100,1cyclictest243-21kworker/7:121:12:137
20912699101100,1cyclictest243-21kworker/7:119:55:187
20912699101100,1cyclictest243-21kworker/7:100:28:007
2091229910199,2cyclictest3437785-21snmpd00:30:026
2091209910199,2cyclictest3437785-21snmpd00:27:445
2091159910199,2cyclictest3437785-21snmpd22:08:564
2091159910199,1cyclictest3437785-21snmpd19:34:414
209115991010,101cyclictest0-21swapper/400:22:444
209115991010,100cyclictest0-21swapper/423:04:574
209115991010,100cyclictest0-21swapper/400:09:484
2091119910199,2cyclictest3437785-21snmpd23:08:053
2091119910199,2cyclictest3437785-21snmpd00:23:173
2091069910199,2cyclictest3437785-21snmpd20:46:322
2091069910198,3cyclictest3437785-21snmpd22:40:422
209106991010,101cyclictest0-21swapper/222:17:432
209106991010,100cyclictest0-21swapper/220:40:322
209102991010,0cyclictest0-21swapper/121:22:051
2090979910199,2cyclictest0-21swapper/023:53:040
209097991010,101cyclictest0-21swapper/021:56:130
209097991010,101cyclictest0-21swapper/021:29:550
209097991010,101cyclictest0-21swapper/020:53:120
209097991010,0cyclictest0-21swapper/000:30:570
2091269910099,1cyclictest243-21kworker/7:123:55:187
2091269910099,1cyclictest243-21kworker/7:123:45:157
2091269910099,1cyclictest243-21kworker/7:123:41:277
2091269910099,1cyclictest243-21kworker/7:123:30:287
2091269910099,1cyclictest243-21kworker/7:123:25:087
2091269910099,1cyclictest243-21kworker/7:123:20:507
2091269910099,1cyclictest243-21kworker/7:123:17:117
2091269910099,1cyclictest243-21kworker/7:123:11:287
2091269910099,1cyclictest243-21kworker/7:123:05:207
2091269910099,1cyclictest243-21kworker/7:122:52:017
2091269910099,1cyclictest243-21kworker/7:122:45:127
2091269910099,1cyclictest243-21kworker/7:122:42:347
2091269910099,1cyclictest243-21kworker/7:122:33:287
2091269910099,1cyclictest243-21kworker/7:122:25:117
2091269910099,1cyclictest243-21kworker/7:122:15:447
2091269910099,1cyclictest243-21kworker/7:122:11:287
2091269910099,1cyclictest243-21kworker/7:121:55:207
2091269910099,1cyclictest243-21kworker/7:121:50:187
2091269910099,1cyclictest243-21kworker/7:121:42:107
2091269910099,1cyclictest243-21kworker/7:121:35:417
2091269910099,1cyclictest243-21kworker/7:121:27:047
2091269910099,1cyclictest243-21kworker/7:121:24:027
2091269910099,1cyclictest243-21kworker/7:121:15:147
2091269910099,1cyclictest243-21kworker/7:120:17:307
2091269910099,1cyclictest243-21kworker/7:120:05:137
2091269910099,1cyclictest243-21kworker/7:119:50:147
2091269910099,1cyclictest243-21kworker/7:119:45:187
2091269910099,1cyclictest243-21kworker/7:119:40:157
2091269910099,1cyclictest243-21kworker/7:119:30:147
2091269910099,1cyclictest243-21kworker/7:119:25:147
2091269910099,1cyclictest243-21kworker/7:119:15:157
2091269910099,1cyclictest243-21kworker/7:100:30:237
2091269910099,1cyclictest243-21kworker/7:100:24:547
2091269910099,1cyclictest243-21kworker/7:100:15:167
2091269910099,1cyclictest243-21kworker/7:100:10:237
2091269910099,1cyclictest243-21kworker/7:100:05:017
2091269910099,1cyclictest243-21kworker/7:100:00:147
2091229910099,1cyclictest3437785-21snmpd23:12:576
2091229910099,1cyclictest3437785-21snmpd00:12:486
2091229910098,2cyclictest3437785-21snmpd23:48:266
209122991000,99cyclictest0-21swapper/623:43:136
209122991000,99cyclictest0-21swapper/622:01:036
209122991000,99cyclictest0-21swapper/621:48:376
209122991000,99cyclictest0-21swapper/620:26:586
209122991000,99cyclictest0-21swapper/619:10:266
209122991000,99cyclictest0-21swapper/600:26:266
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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