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OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #6

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 rack8slot6s.osadl.org (updated Fri Jan 23, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14539991818,0cyclictest65850irq/126-lan21:35:200
14539991817,1cyclictest65850irq/126-lan20:35:230
14539991817,1cyclictest65850irq/126-lan20:30:130
14539991817,1cyclictest65850irq/126-lan19:40:110
14539991817,1cyclictest65850irq/126-lan19:35:140
14539991817,1cyclictest65850irq/126-lan19:30:180
14539991817,1cyclictest65850irq/126-lan19:15:190
14539991717,0cyclictest65850irq/126-lan23:52:180
14539991717,0cyclictest65850irq/126-lan23:40:100
14539991717,0cyclictest65850irq/126-lan23:15:200
14539991717,0cyclictest65850irq/126-lan21:50:120
14539991717,0cyclictest65850irq/126-lan21:25:190
14539991716,1cyclictest65850irq/126-lan23:45:170
14539991716,1cyclictest65850irq/126-lan22:30:200
14539991716,1cyclictest65850irq/126-lan20:25:010
14539991716,1cyclictest65850irq/126-lan00:35:190
14539991716,1cyclictest65850irq/126-lan00:05:150
14539991616,0cyclictest65850irq/126-lan23:28:380
14539991616,0cyclictest65850irq/126-lan21:45:210
14539991616,0cyclictest65850irq/126-lan20:45:200
14539991616,0cyclictest65850irq/126-lan00:25:180
14539991616,0cyclictest65850irq/126-lan00:15:140
14539991615,1cyclictest65850irq/126-lan22:45:130
14539991615,1cyclictest65850irq/126-lan22:42:020
14539991615,1cyclictest65850irq/126-lan22:37:020
14539991615,1cyclictest65850irq/126-lan21:40:160
14539991615,1cyclictest65850irq/126-lan21:05:150
14539991615,1cyclictest65850irq/126-lan20:50:120
14539991615,1cyclictest65850irq/126-lan20:20:240
14539991615,1cyclictest65850irq/126-lan19:10:130
14539991615,1cyclictest65850irq/126-lan00:00:190
14539991515,0cyclictest65850irq/126-lan23:35:110
14539991515,0cyclictest65850irq/126-lan23:22:540
14539991515,0cyclictest65850irq/126-lan21:17:170
14539991515,0cyclictest65850irq/126-lan19:55:200
14539991515,0cyclictest65850irq/126-lan19:29:370
14539991515,0cyclictest65850irq/126-lan00:30:200
14539991514,1cyclictest65850irq/126-lan23:55:120
14539991514,1cyclictest65850irq/126-lan23:30:180
14539991514,1cyclictest65850irq/126-lan22:25:200
14539991514,1cyclictest65850irq/126-lan21:30:170
14539991514,1cyclictest65850irq/126-lan21:20:240
14539991514,1cyclictest65850irq/126-lan20:15:140
14539991514,1cyclictest65850irq/126-lan19:50:120
14539991514,1cyclictest65850irq/126-lan19:20:160
14539991414,0cyclictest65850irq/126-lan20:40:130
14539991414,0cyclictest65850irq/126-lan20:06:520
14539991413,1cyclictest65850irq/126-lan22:50:160
14539991413,1cyclictest65850irq/126-lan20:00:170
14539991313,0cyclictest65850irq/126-lan23:00:220
14539991313,0cyclictest65850irq/126-lan22:56:380
14539991313,0cyclictest65850irq/126-lan21:10:120
14539991312,1cyclictest65850irq/126-lan22:10:120
14539991312,1cyclictest65850irq/126-lan22:05:170
14539991312,1cyclictest65850irq/126-lan21:00:130
14539991312,1cyclictest65850irq/126-lan20:10:140
14539991212,0cyclictest65850irq/126-lan22:20:170
14539991212,0cyclictest65850irq/126-lan22:15:130
14539991212,0cyclictest65850irq/126-lan21:55:140
14539991211,1cyclictest65850irq/126-lan23:10:130
14539991211,1cyclictest65850irq/126-lan22:00:150
14539991111,0cyclictest65850irq/126-lan00:10:210
14539991110,1cyclictest65850irq/126-lan20:55:120
14539991110,1cyclictest65850irq/126-lan00:22:440
1453999109,1cyclictest65850irq/126-lan23:05:190
1453999109,1cyclictest65850irq/126-lan19:45:120
1453999109,1cyclictest65850irq/126-lan19:45:120
145529998,1cyclictest743-21snmpd20:31:043
145529998,1cyclictest743-21snmpd00:06:383
145529998,1cyclictest741-21lldpd00:37:413
145489998,1cyclictest743-21snmpd23:51:402
145489998,1cyclictest743-21snmpd21:40:112
145489998,1cyclictest741-21lldpd22:46:542
145489998,1cyclictest741-21lldpd19:23:182
145439998,1cyclictest743-21snmpd21:20:081
145439998,1cyclictest743-21snmpd21:12:131
145439998,1cyclictest743-21snmpd20:10:451
145439998,1cyclictest743-21snmpd19:37:121
145529988,0cyclictest743-21snmpd00:30:213
145529988,0cyclictest741-21lldpd23:51:523
145529988,0cyclictest741-21lldpd23:29:293
145529988,0cyclictest741-21lldpd22:06:583
145529988,0cyclictest741-21lldpd21:13:023
145529988,0cyclictest741-21lldpd00:23:503
145529988,0cyclictest741-21lldpd00:18:513
145529987,1cyclictest743-21snmpd22:31:503
145529987,1cyclictest743-21snmpd22:11:543
145529986,2cyclictest743-21snmpd21:59:513
145529986,2cyclictest743-21snmpd20:28:033
145489988,0cyclictest743-21snmpd23:39:522
145489988,0cyclictest743-21snmpd19:47:062
145489988,0cyclictest743-21snmpd19:47:052
145489988,0cyclictest741-21lldpd20:14:132
145489988,0cyclictest741-21lldpd19:10:592
145489987,1cyclictest743-21snmpd19:52:172
145489987,1cyclictest743-21snmpd00:36:142
145489987,1cyclictest741-21lldpd19:29:072
145489986,2cyclictest743-21snmpd23:12:242
145489986,2cyclictest743-21snmpd22:10:302
145489986,2cyclictest743-21snmpd21:35:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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