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2025-11-17 - 16:35

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 Mon Nov 17, 2025 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8789842156137,14sleep70-21swapper/719:08:117
8788002141133,5sleep50-21swapper/519:05:365
878895212697,10sleep10-21swapper/119:06:531
8788402125110,10sleep60-21swapper/619:06:096
879101212496,10sleep20-21swapper/219:09:512
8790732124110,9sleep30-21swapper/319:09:273
8788942122107,10sleep00-21swapper/019:06:520
8789902120106,9sleep40-21swapper/419:08:164
879350991030,100cyclictest0-21swapper/100:34:271
879370991020,0cyclictest0-21swapper/623:17:206
8793579910299,3cyclictest546-21snmpd23:59:253
8793509910299,3cyclictest546-21snmpd22:04:001
8793509910299,3cyclictest546-21snmpd19:20:141
879373991010,101cyclictest0-21swapper/721:30:227
8793709910199,2cyclictest546-21snmpd23:50:346
8793709910199,2cyclictest546-21snmpd23:25:036
8793709910198,3cyclictest546-21snmpd20:57:316
87937099101100,1cyclictest546-21snmpd00:20:266
879370991010,99cyclictest0-21swapper/623:59:316
879370991010,101cyclictest0-21swapper/621:34:076
879370991010,100cyclictest0-21swapper/619:50:166
8793659910199,2cyclictest546-21snmpd21:37:225
87936599101100,1cyclictest546-21snmpd21:15:195
879365991010,100cyclictest0-21swapper/523:42:455
879365991010,100cyclictest0-21swapper/521:57:325
8793619910199,2cyclictest546-21snmpd21:34:284
8793579910199,2cyclictest546-21snmpd23:25:293
8793579910199,2cyclictest546-21snmpd21:56:593
879353991010,100cyclictest0-21swapper/222:33:142
8793509910199,2cyclictest0-21swapper/122:07:481
8793509910198,3cyclictest966898-21cat21:35:191
8793469910199,2cyclictest546-21snmpd22:12:420
8793469910199,2cyclictest546-21snmpd21:40:050
8793469910199,2cyclictest546-21snmpd00:27:030
8793469910198,3cyclictest546-21snmpd20:18:460
8793469910198,3cyclictest546-21snmpd19:51:290
8793469910198,3cyclictest546-21snmpd19:37:360
87934699101100,1cyclictest546-21snmpd20:34:080
879346991010,100cyclictest0-21swapper/021:32:350
879346991010,0cyclictest0-21swapper/020:43:420
879373991000,99cyclictest0-21swapper/722:21:467
879373991000,1cyclictest0-21swapper/721:56:027
879373991000,100cyclictest0-21swapper/722:01:237
879373991000,100cyclictest0-21swapper/721:43:207
879373991000,0cyclictest0-21swapper/723:59:597
879373991000,0cyclictest0-21swapper/723:48:067
879373991000,0cyclictest0-21swapper/719:34:007
8793709910099,1cyclictest546-21snmpd22:40:356
8793709910099,1cyclictest546-21snmpd22:39:556
8793709910099,1cyclictest546-21snmpd21:37:076
8793709910099,1cyclictest546-21snmpd20:51:276
8793709910099,1cyclictest546-21snmpd20:34:456
8793709910099,1cyclictest546-21snmpd20:28:116
8793709910098,2cyclictest546-21snmpd20:09:086
8793709910098,1cyclictest546-21snmpd00:02:346
879370991000,99cyclictest0-21swapper/623:14:026
879370991000,100cyclictest0-21swapper/623:05:456
879370991000,100cyclictest0-21swapper/621:25:436
879370991000,100cyclictest0-21swapper/600:30:186
8793659910099,1cyclictest546-21snmpd23:27:165
8793659910099,1cyclictest546-21snmpd23:10:445
8793659910099,1cyclictest546-21snmpd20:51:515
8793659910099,1cyclictest546-21snmpd00:06:015
8793659910099,1cyclictest1010495-21cat22:20:145
8793659910098,2cyclictest546-21snmpd23:04:125
8793659910098,2cyclictest546-21snmpd22:40:175
879365991000,99cyclictest0-21swapper/520:15:135
879365991000,99cyclictest0-21swapper/519:59:345
879365991000,100cyclictest0-21swapper/523:23:385
8793619910099,1cyclictest546-21snmpd21:35:254
8793619910099,1cyclictest546-21snmpd21:21:584
8793619910099,1cyclictest546-21snmpd00:05:434
8793619910098,2cyclictest546-21snmpd22:16:154
879361991000,99cyclictest0-21swapper/423:48:404
879361991000,99cyclictest0-21swapper/422:11:314
879361991000,99cyclictest0-21swapper/420:25:454
879361991000,99cyclictest0-21swapper/420:14:554
879361991000,99cyclictest0-21swapper/419:55:164
879361991000,1cyclictest0-21swapper/400:22:144
8793579910099,1cyclictest546-21snmpd23:46:103
8793579910099,1cyclictest546-21snmpd22:28:393
8793579910099,1cyclictest546-21snmpd22:01:113
8793579910099,1cyclictest546-21snmpd21:45:233
8793579910099,1cyclictest546-21snmpd19:12:513
8793579910098,2cyclictest546-21snmpd21:21:223
8793539910099,1cyclictest546-21snmpd23:59:432
8793539910099,1cyclictest546-21snmpd22:48:342
8793539910099,1cyclictest546-21snmpd22:12:272
8793539910099,1cyclictest546-21snmpd21:10:132
8793539910099,1cyclictest546-21snmpd00:31:002
879353991000,99cyclictest0-21swapper/223:29:422
879353991000,99cyclictest0-21swapper/220:57:572
879353991000,100cyclictest0-21swapper/222:26:572
8793509910099,1cyclictest546-21snmpd20:17:131
8793509910099,1cyclictest546-21snmpd19:51:371
8793509910099,1cyclictest546-21snmpd00:20:221
8793509910098,2cyclictest546-21snmpd23:42:221
879350991000,99cyclictest0-21swapper/123:45:191
879350991000,99cyclictest0-21swapper/120:32:201
879350991000,99cyclictest0-21swapper/119:46:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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