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2026-03-10 - 18:35

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 Tue Mar 10, 2026 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14945632145131,9sleep10-21swapper/107:08:521
14945632145131,9sleep10-21swapper/107:08:521
1494491212295,22sleep50-21swapper/507:07:535
1494491212295,22sleep50-21swapper/507:07:525
14945352121107,9sleep20-21swapper/207:08:292
14945352121107,9sleep20-21swapper/207:08:292
14945692120104,10sleep70-21swapper/707:08:597
14945692120104,10sleep70-21swapper/707:08:587
14944342117103,9sleep40-21swapper/407:07:034
14944342117103,9sleep40-21swapper/407:07:024
1494374211588,22sleep00-21swapper/007:06:100
1494374211588,22sleep00-21swapper/007:06:100
1494527211399,9sleep30-21swapper/307:08:223
1494527211399,9sleep30-21swapper/307:08:223
1494559211298,9sleep60-21swapper/607:08:506
1494559211298,9sleep60-21swapper/607:08:506
1495052991020,100cyclictest0-21swapper/409:29:454
14950479910299,3cyclictest553-21snmpd12:39:563
14950479910299,3cyclictest553-21snmpd11:10:383
14950379910299,3cyclictest553-21snmpd09:04:282
1495037991020,102cyclictest0-21swapper/210:31:012
1495027991020,100cyclictest1557138-21diskmemload11:57:451
14950579910199,2cyclictest553-21snmpd10:41:495
1495057991010,100cyclictest0-21swapper/509:01:085
14950529910199,2cyclictest553-21snmpd12:04:444
14950529910199,2cyclictest553-21snmpd07:58:474
149505299101100,1cyclictest553-21snmpd12:11:014
1495052991010,100cyclictest1557138-21diskmemload12:23:524
14950479910199,2cyclictest553-21snmpd10:37:103
14950479910197,3cyclictest553-21snmpd09:38:263
1495037991010,101cyclictest0-21swapper/212:16:492
1495037991010,101cyclictest0-21swapper/212:06:582
1495037991010,101cyclictest0-21swapper/210:58:032
1495015991010,100cyclictest16758242sleep010:55:370
1495015991010,100cyclictest0-21swapper/011:45:520
1495063991000,99cyclictest0-21swapper/710:53:167
1495063991000,99cyclictest0-21swapper/710:38:087
1495063991000,99cyclictest0-21swapper/710:33:227
1495063991000,99cyclictest0-21swapper/709:45:237
1495063991000,99cyclictest0-21swapper/709:36:097
1495063991000,100cyclictest0-21swapper/709:50:307
1495063991000,100cyclictest0-21swapper/707:38:457
1495063991000,100cyclictest0-21swapper/707:15:587
1495063991000,0cyclictest0-21swapper/712:07:527
1495063991000,0cyclictest0-21swapper/709:26:417
14950599910099,1cyclictest553-21snmpd11:19:476
14950599910099,1cyclictest553-21snmpd10:55:196
14950599910099,1cyclictest553-21snmpd10:14:246
14950599910099,1cyclictest553-21snmpd08:58:046
14950599910099,1cyclictest553-21snmpd08:13:156
14950599910099,1cyclictest553-21snmpd07:44:356
14950599910098,2cyclictest553-21snmpd11:46:036
1495059991000,99cyclictest0-21swapper/609:06:476
1495059991000,100cyclictest0-21swapper/612:09:356
14950579910099,1cyclictest553-21snmpd12:36:445
14950579910099,1cyclictest553-21snmpd12:32:065
14950579910099,1cyclictest553-21snmpd11:06:175
14950579910099,1cyclictest553-21snmpd10:38:195
14950579910099,1cyclictest553-21snmpd09:33:455
14950579910099,1cyclictest553-21snmpd08:26:395
14950579910099,1cyclictest553-21snmpd07:53:005
14950579910099,1cyclictest553-21snmpd07:35:225
14950579910099,1cyclictest553-21snmpd07:17:375
1495057991000,100cyclictest0-21swapper/512:13:015
1495057991000,100cyclictest0-21swapper/509:55:365
14950529910099,1cyclictest553-21snmpd09:51:364
14950529910099,1cyclictest553-21snmpd08:48:104
14950529910099,1cyclictest553-21snmpd07:23:554
14950529910098,2cyclictest553-21snmpd10:42:344
14950529910098,2cyclictest553-21snmpd07:47:294
1495052991000,99cyclictest0-21swapper/412:26:234
1495052991000,99cyclictest0-21swapper/411:14:234
1495052991000,99cyclictest0-21swapper/411:03:214
1495052991000,100cyclictest0-21swapper/412:18:044
1495052991000,100cyclictest0-21swapper/410:08:274
14950479910099,1cyclictest553-21snmpd12:24:173
14950479910099,1cyclictest553-21snmpd11:49:153
14950479910099,1cyclictest553-21snmpd11:28:523
14950479910099,1cyclictest553-21snmpd10:52:253
14950479910099,1cyclictest553-21snmpd08:18:333
14950479910098,2cyclictest553-21snmpd11:38:243
14950379910099,1cyclictest553-21snmpd11:38:002
14950379910099,1cyclictest553-21snmpd09:07:012
14950379910098,2cyclictest553-21snmpd12:00:312
1495037991000,99cyclictest0-21swapper/211:02:592
1495037991000,99cyclictest0-21swapper/209:54:432
1495037991000,99cyclictest0-21swapper/207:52:022
1495037991000,99cyclictest0-21swapper/207:41:532
1495037991000,99cyclictest0-21swapper/207:22:322
1495037991000,100cyclictest0-21swapper/212:33:322
1495037991000,100cyclictest0-21swapper/212:12:522
1495037991000,100cyclictest0-21swapper/210:15:552
1495037991000,100cyclictest0-21swapper/207:18:022
14950279910099,1cyclictest553-21snmpd11:26:591
14950279910099,1cyclictest553-21snmpd09:59:151
14950279910099,1cyclictest553-21snmpd09:06:311
14950279910099,1cyclictest553-21snmpd09:00:041
14950279910099,1cyclictest553-21snmpd08:31:401
14950279910099,1cyclictest1524964-21cat08:05:161
14950279910099,1cyclictest0-21swapper/110:03:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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