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2026-01-12 - 15:14

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 Jan 12, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30257462133118,9sleep60-21swapper/607:05:116
30276202131118,8sleep10-21swapper/107:08:361
30256032126112,9sleep50-21swapper/507:05:025
30276032125106,14sleep20-21swapper/207:08:212
30276882123109,9sleep40-21swapper/407:09:344
30256102123108,10sleep30-21swapper/307:05:093
30275452122108,9sleep00-21swapper/007:07:310
30276082117103,9sleep70-21swapper/707:08:257
30279779910299,3cyclictest2579219-21snmpd09:37:436
30279669910299,3cyclictest2579219-21snmpd08:06:313
30279589910299,3cyclictest2579219-21snmpd11:05:011
3027958991020,100cyclictest0-21swapper/109:38:031
3027981991010,100cyclictest0-21swapper/708:31:337
30279779910199,2cyclictest2579219-21snmpd12:20:416
3027977991010,99cyclictest0-21swapper/609:03:486
30279759910199,2cyclictest9431-21ntpd11:31:185
30279759910199,2cyclictest2579219-21snmpd10:28:145
30279759910199,2cyclictest2579219-21snmpd08:55:265
3027975991010,100cyclictest0-21swapper/511:54:375
3027975991010,100cyclictest0-21swapper/510:56:455
30279709910199,2cyclictest2579219-21snmpd11:22:364
3027970991010,100cyclictest0-21swapper/410:29:334
302796699101100,1cyclictest2579219-21snmpd09:46:573
30279629910199,1cyclictest2579219-21snmpd11:24:512
3027962991010,100cyclictest0-21swapper/212:16:232
30279589910199,2cyclictest2579219-21snmpd12:16:421
30279589910199,2cyclictest2579219-21snmpd11:03:101
30279589910199,2cyclictest2579219-21snmpd08:02:001
3027958991010,101cyclictest0-21swapper/111:52:261
3027958991010,101cyclictest0-21swapper/107:44:531
3027958991010,100cyclictest0-21swapper/109:00:441
3027958991010,100cyclictest0-21swapper/107:39:591
3027954991010,100cyclictest0-21swapper/009:55:140
3027981991000,99cyclictest0-21swapper/712:10:367
3027981991000,99cyclictest0-21swapper/708:52:077
3027981991000,100cyclictest0-21swapper/711:44:347
3027981991000,100cyclictest0-21swapper/711:04:047
3027981991000,100cyclictest0-21swapper/709:15:187
30279779910099,1cyclictest2579219-21snmpd11:56:436
30279779910099,1cyclictest2579219-21snmpd10:45:506
30279779910099,1cyclictest2579219-21snmpd09:49:546
30279779910099,1cyclictest2579219-21snmpd09:26:566
30279779910099,1cyclictest2579219-21snmpd08:33:376
30279779910097,3cyclictest2579219-21snmpd11:11:276
3027977991000,99cyclictest0-21swapper/609:11:036
3027977991000,99cyclictest0-21swapper/608:44:246
3027977991000,100cyclictest0-21swapper/612:36:006
30279759910099,1cyclictest2579219-21snmpd11:04:005
30279759910099,1cyclictest2579219-21snmpd10:45:295
30279759910099,1cyclictest2579219-21snmpd10:30:245
30279759910099,1cyclictest2579219-21snmpd08:06:495
30279759910099,1cyclictest2579219-21snmpd07:16:235
30279759910099,0cyclictest2579219-21snmpd09:44:425
30279759910098,1cyclictest9431-21ntpd09:46:185
3027975991000,99cyclictest3109743-21ssh09:27:115
3027975991000,99cyclictest0-21swapper/509:53:125
3027975991000,99cyclictest0-21swapper/509:19:205
3027975991000,1cyclictest0-21swapper/507:30:145
3027975991000,100cyclictest0-21swapper/508:10:145
30279709910099,1cyclictest9431-21ntpd09:06:184
30279709910099,1cyclictest9431-21ntpd08:11:194
30279709910099,1cyclictest2579219-21snmpd11:10:554
30279709910099,1cyclictest2579219-21snmpd10:10:524
30279709910099,1cyclictest2579219-21snmpd09:40:424
30279709910099,1cyclictest2579219-21snmpd08:56:384
30279709910099,1cyclictest2579219-21snmpd08:03:474
3027970991000,99cyclictest0-21swapper/412:19:444
3027970991000,99cyclictest0-21swapper/410:56:214
3027970991000,99cyclictest0-21swapper/410:46:214
3027970991000,100cyclictest0-21swapper/411:15:314
3027970991000,100cyclictest0-21swapper/410:40:144
3027970991000,100cyclictest0-21swapper/410:08:494
3027970991000,100cyclictest0-21swapper/407:19:294
30279669910099,1cyclictest2579219-21snmpd11:58:473
30279669910098,2cyclictest2579219-21snmpd09:58:553
30279629910099,1cyclictest2579219-21snmpd10:56:082
30279629910099,1cyclictest2579219-21snmpd10:51:242
30279629910099,1cyclictest2579219-21snmpd10:46:482
3027962991000,99cyclictest3089272-21diskmemload10:18:232
3027962991000,99cyclictest0-21swapper/212:39:542
3027962991000,100cyclictest0-21swapper/212:21:302
30279589910099,1cyclictest2579219-21snmpd07:29:561
30279589910097,3cyclictest2579219-21snmpd08:29:041
3027958991000,99cyclictest0-21swapper/111:32:141
3027958991000,99cyclictest0-21swapper/111:13:341
3027958991000,100cyclictest0-21swapper/111:57:051
3027958991000,100cyclictest0-21swapper/111:42:071
3027958991000,100cyclictest0-21swapper/111:26:281
3027958991000,100cyclictest0-21swapper/110:36:291
3027958991000,100cyclictest0-21swapper/110:06:521
30279549910099,1cyclictest3082889-21cat08:55:140
30279549910099,1cyclictest2579219-21snmpd12:04:010
30279549910099,1cyclictest2579219-21snmpd10:37:270
30279549910099,1cyclictest2579219-21snmpd09:51:040
30279549910099,1cyclictest2579219-21snmpd07:20:400
30279549910098,2cyclictest2579219-21snmpd09:33:390
302795499100100,0cyclictest2579219-21snmpd10:55:380
3027954991000,99cyclictest0-21swapper/012:19:390
3027954991000,99cyclictest0-21swapper/011:35:290
3027954991000,99cyclictest0-21swapper/010:13:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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