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2026-06-03 - 00:35

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 Jun 02, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3042421211990,9sleep50-21swapper/507:09:285
30423472116101,10sleep70-21swapper/707:08:267
3042442211499,9sleep60-21swapper/607:09:456
3042388211499,10sleep10-21swapper/107:09:001
3042183211399,9sleep00-21swapper/007:06:020
3042381211095,10sleep30-21swapper/307:08:553
3042277211096,9sleep20-21swapper/207:07:262
3042234210894,9sleep40-21swapper/407:06:474
3042711991030,102cyclictest0-21swapper/612:33:356
30427119910299,3cyclictest3278406-21cat11:45:146
304270999102100,2cyclictest553-21snmpd09:48:105
30427009910299,3cyclictest553-21snmpd10:50:083
304270099102100,2cyclictest553-21snmpd11:07:443
30426959910299,3cyclictest553-21snmpd08:47:492
30426959910299,3cyclictest553-21snmpd07:58:242
3042695991020,101cyclictest0-21swapper/207:11:312
3042715991010,100cyclictest0-21swapper/707:19:507
30427119910199,2cyclictest553-21snmpd11:30:246
30427119910199,2cyclictest553-21snmpd10:49:446
3042711991010,101cyclictest0-21swapper/612:00:556
3042711991010,100cyclictest0-21swapper/610:34:466
3042711991010,100cyclictest0-21swapper/609:03:136
30427099910199,1cyclictest605-21lldpd09:24:295
304270999101100,1cyclictest553-21snmpd09:12:445
3042709991010,100cyclictest3104007-21diskmemload10:20:285
30427049910199,2cyclictest553-21snmpd10:22:194
30427009910199,2cyclictest553-21snmpd09:39:313
30427009910199,2cyclictest553-21snmpd09:09:533
30427009910199,2cyclictest553-21snmpd07:13:463
3042692991010,100cyclictest0-21swapper/110:11:461
30426879910199,2cyclictest553-21snmpd12:05:080
30426879910199,2cyclictest553-21snmpd10:58:020
30426879910199,2cyclictest553-21snmpd08:29:510
30426879910199,1cyclictest553-21snmpd08:13:570
3042715991000,99cyclictest0-21swapper/711:30:067
3042715991000,99cyclictest0-21swapper/710:55:387
3042715991000,99cyclictest0-21swapper/710:12:317
3042715991000,99cyclictest0-21swapper/708:56:377
3042715991000,100cyclictest0-21swapper/711:17:367
3042715991000,100cyclictest0-21swapper/710:27:587
30427119910099,1cyclictest553-21snmpd12:38:116
30427119910099,1cyclictest553-21snmpd09:16:026
30427119910098,2cyclictest553-21snmpd10:23:586
3042711991000,99cyclictest0-21swapper/607:58:116
30427099910099,1cyclictest553-21snmpd11:20:515
30427099910099,1cyclictest553-21snmpd08:11:095
30427099910099,1cyclictest3289464-21cat11:55:165
30427099910099,1cyclictest3133596-21cat09:35:145
30427099910098,2cyclictest553-21snmpd10:52:055
3042709991000,99cyclictest0-21swapper/512:34:055
3042709991000,100cyclictest0-21swapper/509:34:205
30427049910099,1cyclictest553-21snmpd09:54:274
30427049910099,1cyclictest553-21snmpd08:43:104
30427049910099,1cyclictest553-21snmpd07:38:394
30427049910099,1cyclictest3247425-21ssh11:17:274
30427049910098,2cyclictest553-21snmpd11:53:174
30427049910098,2cyclictest553-21snmpd08:02:244
3042704991000,99cyclictest0-21swapper/411:55:204
3042704991000,99cyclictest0-21swapper/407:47:474
30427009910099,1cyclictest553-21snmpd11:45:153
30427009910099,1cyclictest553-21snmpd09:59:483
30427009910099,1cyclictest553-21snmpd08:56:433
30427009910098,2cyclictest553-21snmpd11:26:313
30427009910098,2cyclictest553-21snmpd07:26:313
30427009910097,3cyclictest553-21snmpd08:20:513
30427009910097,3cyclictest553-21snmpd07:44:563
304270099100100,0cyclictest553-21snmpd10:09:533
30426959910099,1cyclictest553-21snmpd12:02:042
30426959910099,1cyclictest553-21snmpd10:21:552
30426959910099,1cyclictest553-21snmpd10:00:482
30426959910099,1cyclictest553-21snmpd08:51:382
30426959910098,2cyclictest553-21snmpd10:40:372
30426959910097,3cyclictest553-21snmpd11:00:532
3042695991000,99cyclictest0-21swapper/210:32:412
3042695991000,99cyclictest0-21swapper/207:42:322
30426929910099,1cyclictest553-21snmpd11:48:141
30426929910099,1cyclictest553-21snmpd10:08:491
30426929910099,1cyclictest553-21snmpd09:09:381
30426929910098,1cyclictest553-21snmpd11:52:311
304269299100100,0cyclictest553-21snmpd10:32:521
3042692991000,99cyclictest0-21swapper/111:34:241
3042692991000,99cyclictest0-21swapper/111:05:161
3042692991000,99cyclictest0-21swapper/110:04:191
3042692991000,99cyclictest0-21swapper/108:52:011
3042692991000,99cyclictest0-21swapper/108:10:121
3042692991000,98cyclictest0-21swapper/107:50:151
3042692991000,1cyclictest0-21swapper/111:19:451
3042692991000,100cyclictest0-21swapper/112:09:161
3042692991000,100cyclictest0-21swapper/109:01:521
30426879910099,1cyclictest553-21snmpd12:39:540
30426879910099,1cyclictest553-21snmpd11:24:010
30426879910099,1cyclictest553-21snmpd11:17:280
30426879910099,1cyclictest553-21snmpd07:47:170
30426879910099,1cyclictest553-21snmpd07:27:530
30426879910099,1cyclictest3177798-21cat10:15:150
30426879910098,2cyclictest553-21snmpd11:34:150
304271599990,99cyclictest0-21swapper/711:46:527
304271599990,99cyclictest0-21swapper/710:35:287
304271599990,99cyclictest0-21swapper/709:57:037
304271599990,99cyclictest0-21swapper/707:43:547
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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