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2026-09-04 - 13:26

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 Sep 04, 2026 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19483242122107,10sleep20-21swapper/219:05:022
19504002119103,10sleep30-21swapper/319:06:073
19503932116101,10sleep50-21swapper/519:06:015
19504592115101,9sleep60-21swapper/619:06:586
19503982115100,10sleep10-21swapper/119:06:051
1950471211499,10sleep00-21swapper/019:07:070
1950392211499,9sleep40-21swapper/419:06:004
1950554210893,10sleep70-21swapper/719:08:197
195091699103100,2cyclictest553-21snmpd23:45:246
1950916991030,100cyclictest0-21swapper/623:50:186
19509169910299,3cyclictest553-21snmpd20:58:286
19509169910299,3cyclictest553-21snmpd20:32:486
195091299102100,2cyclictest553-21snmpd23:36:005
19508979910299,3cyclictest553-21snmpd23:47:411
19508929910299,3cyclictest553-21snmpd21:31:440
19508929910299,3cyclictest553-21snmpd00:32:470
19508929910299,2cyclictest553-21snmpd23:20:310
195089299102100,2cyclictest553-21snmpd23:18:520
1950892991020,101cyclictest0-21swapper/021:20:030
1950920991010,100cyclictest0-21swapper/723:46:007
1950920991010,100cyclictest0-21swapper/722:42:257
1950920991010,100cyclictest0-21swapper/722:42:247
1950920991010,100cyclictest0-21swapper/720:54:407
1950920991010,100cyclictest0-21swapper/700:13:407
19509169910199,2cyclictest553-21snmpd23:17:326
19509169910199,2cyclictest553-21snmpd22:20:146
19509169910198,3cyclictest553-21snmpd20:22:236
1950916991010,99cyclictest0-21swapper/621:28:596
1950916991010,100cyclictest0-21swapper/600:29:476
19509129910199,2cyclictest553-21snmpd23:16:445
1950912991010,100cyclictest0-21swapper/520:58:315
19509069910199,2cyclictest553-21snmpd22:13:393
19509069910199,2cyclictest553-21snmpd19:52:173
19509019910199,2cyclictest553-21snmpd21:46:202
19509019910199,2cyclictest553-21snmpd19:34:312
19509019910199,2cyclictest553-21snmpd00:22:092
19509019910198,3cyclictest2142084-21cat23:05:132
1950901991010,101cyclictest0-21swapper/220:36:172
19508979910199,2cyclictest553-21snmpd22:01:061
19508979910199,1cyclictest553-21snmpd22:07:511
19508979910199,1cyclictest553-21snmpd19:14:021
1950897991010,99cyclictest0-21swapper/122:43:431
1950897991010,99cyclictest0-21swapper/122:43:431
1950897991010,101cyclictest0-21swapper/122:24:011
1950897991010,100cyclictest0-21swapper/120:56:031
19508929910199,2cyclictest553-21snmpd20:05:530
195089299101100,1cyclictest2198416-21cat23:55:160
1950892991010,99cyclictest0-21swapper/019:50:430
1950892991010,101cyclictest0-21swapper/023:41:540
1950920991000,99cyclictest0-21swapper/722:53:327
1950920991000,99cyclictest0-21swapper/719:51:467
1950920991000,1cyclictest0-21swapper/722:01:507
1950920991000,100cyclictest0-21swapper/723:00:297
1950920991000,100cyclictest0-21swapper/722:12:187
19509169910099,1cyclictest553-21snmpd23:29:336
19509169910099,1cyclictest553-21snmpd23:06:196
19509169910099,1cyclictest553-21snmpd21:05:016
19509169910099,1cyclictest553-21snmpd20:09:176
19509169910099,1cyclictest553-21snmpd19:39:166
19509169910098,2cyclictest553-21snmpd22:19:006
19509169910098,2cyclictest553-21snmpd21:21:326
19509169910097,2cyclictest553-21snmpd21:37:196
1950916991000,100cyclictest0-21swapper/622:26:426
1950916991000,100cyclictest0-21swapper/622:00:136
1950916991000,100cyclictest0-21swapper/619:33:226
19509129910099,1cyclictest553-21snmpd21:42:505
19509129910099,1cyclictest553-21snmpd20:45:545
19509129910099,1cyclictest0-21swapper/500:20:225
19509129910098,2cyclictest553-21snmpd21:23:115
1950912991000,99cyclictest0-21swapper/521:05:425
1950912991000,99cyclictest0-21swapper/521:00:105
1950912991000,99cyclictest0-21swapper/519:22:335
1950912991000,99cyclictest0-21swapper/519:12:545
19509089910099,1cyclictest553-21snmpd23:39:004
19509089910099,1cyclictest553-21snmpd23:26:444
19509089910099,1cyclictest553-21snmpd22:46:554
19509089910099,1cyclictest553-21snmpd22:43:464
19509089910099,1cyclictest553-21snmpd22:43:454
19509089910099,1cyclictest553-21snmpd21:16:164
19509089910099,1cyclictest553-21snmpd21:12:134
19509089910098,2cyclictest553-21snmpd22:21:584
1950908991000,100cyclictest0-21swapper/420:39:364
1950908991000,100cyclictest0-21swapper/400:21:434
19509069910099,1cyclictest553-21snmpd23:52:293
19509069910099,1cyclictest553-21snmpd22:17:323
19509069910099,1cyclictest553-21snmpd22:09:123
19509069910099,1cyclictest553-21snmpd21:49:453
19509069910099,1cyclictest553-21snmpd20:56:253
19509069910099,0cyclictest553-21snmpd20:07:313
19509069910098,2cyclictest553-21snmpd23:43:303
19509069910098,2cyclictest553-21snmpd20:26:483
19509019910099,1cyclictest553-21snmpd23:36:062
19509019910099,1cyclictest553-21snmpd20:06:102
1950901991000,99cyclictest0-21swapper/219:55:412
1950901991000,100cyclictest0-21swapper/222:15:322
1950901991000,100cyclictest0-21swapper/200:17:462
19508979910099,1cyclictest553-21snmpd20:03:131
19508979910099,1cyclictest553-21snmpd00:09:071
19508979910099,1cyclictest553-21snmpd00:01:101
1950897991000,99cyclictest0-21swapper/123:27:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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