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2026-01-05 - 08:22

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 Mon Jan 05, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21878991918,1cyclictest65850irq/126-lan23:25:200
21878991918,1cyclictest65850irq/126-lan22:31:280
21878991918,1cyclictest65850irq/126-lan22:00:140
21878991818,0cyclictest65850irq/126-lan23:56:210
21878991818,0cyclictest65850irq/126-lan23:34:400
21878991818,0cyclictest65850irq/126-lan00:05:180
21878991817,1cyclictest65850irq/126-lan22:35:130
21878991817,1cyclictest65850irq/126-lan19:50:170
21878991817,1cyclictest65850irq/126-lan19:45:190
21878991817,1cyclictest65850irq/126-lan00:35:160
21878991817,1cyclictest65850irq/126-lan00:29:590
21886991717,0cyclictest743-21snmpd21:50:101
21886991717,0cyclictest743-21snmpd19:52:241
21886991717,0cyclictest24518-21cat19:15:161
21878991717,0cyclictest65850irq/126-lan21:29:050
21878991717,0cyclictest65850irq/126-lan00:20:150
21878991716,1cyclictest65850irq/126-lan23:05:140
21878991716,1cyclictest65850irq/126-lan21:55:150
21878991716,1cyclictest65850irq/126-lan21:32:290
21878991716,1cyclictest65850irq/126-lan20:10:180
21878991716,1cyclictest65850irq/126-lan19:40:240
21886991616,0cyclictest743-21snmpd23:17:321
21886991616,0cyclictest743-21snmpd22:58:261
21886991616,0cyclictest743-21snmpd22:37:301
21886991616,0cyclictest743-21snmpd20:54:241
21886991616,0cyclictest743-21snmpd20:54:231
21886991616,0cyclictest6611-21cat21:10:141
21886991616,0cyclictest3694-21cat23:40:151
21878991616,0cyclictest65850irq/126-lan23:15:120
21878991616,0cyclictest65850irq/126-lan23:00:140
21878991616,0cyclictest65850irq/126-lan22:45:190
21878991616,0cyclictest65850irq/126-lan22:25:050
21878991616,0cyclictest65850irq/126-lan22:20:150
21878991616,0cyclictest65850irq/126-lan19:20:190
21878991616,0cyclictest65850irq/126-lan19:15:190
21878991615,1cyclictest65850irq/126-lan23:21:340
21878991615,1cyclictest65850irq/126-lan21:12:300
21878991615,1cyclictest65850irq/126-lan20:30:190
21878991615,1cyclictest65850irq/126-lan19:55:140
21878991615,1cyclictest65850irq/126-lan00:30:140
21878991615,1cyclictest65850irq/126-lan00:15:220
21878991615,1cyclictest65850irq/126-lan00:00:150
21886991515,0cyclictest743-21snmpd23:27:531
21886991515,0cyclictest743-21snmpd22:43:251
21886991515,0cyclictest743-21snmpd22:16:171
21886991515,0cyclictest743-21snmpd20:35:191
21886991515,0cyclictest743-21snmpd20:24:161
21886991515,0cyclictest743-21snmpd20:18:281
21886991515,0cyclictest743-21snmpd19:30:231
21878991515,0cyclictest65850irq/126-lan21:45:130
21878991515,0cyclictest65850irq/126-lan21:20:490
21878991515,0cyclictest65850irq/126-lan20:55:000
21878991515,0cyclictest65850irq/126-lan20:55:000
21878991515,0cyclictest65850irq/126-lan20:20:170
21878991514,1cyclictest65850irq/126-lan23:50:200
21878991514,1cyclictest65850irq/126-lan22:11:300
21878991514,1cyclictest65850irq/126-lan22:05:150
21878991514,1cyclictest65850irq/126-lan20:39:270
21878991514,1cyclictest65850irq/126-lan19:10:130
21878991414,0cyclictest65850irq/126-lan22:40:190
21878991414,0cyclictest65850irq/126-lan20:45:140
21878991414,0cyclictest65850irq/126-lan19:35:130
21878991413,1cyclictest65850irq/126-lan23:38:400
21878991413,1cyclictest65850irq/126-lan22:15:200
21878991413,1cyclictest65850irq/126-lan20:25:130
21878991313,0cyclictest65850irq/126-lan21:40:010
21878991313,0cyclictest65850irq/126-lan21:08:290
21878991313,0cyclictest65850irq/126-lan20:55:130
21878991313,0cyclictest65850irq/126-lan20:18:390
21878991312,1cyclictest65850irq/126-lan21:19:040
21878991312,1cyclictest65850irq/126-lan00:10:110
21878991212,0cyclictest65850irq/126-lan21:39:290
21878991212,0cyclictest65850irq/126-lan19:30:170
21878991211,1cyclictest65850irq/126-lan22:55:110
21893991111,0cyclictest6817-21fwupd23:47:423
21878991111,0cyclictest65850irq/126-lan23:45:180
21878991110,1cyclictest65850irq/126-lan22:50:130
21878991110,1cyclictest65850irq/126-lan21:50:160
21878991110,1cyclictest65850irq/126-lan20:41:060
21878991110,1cyclictest65850irq/126-lan20:00:560
21878991110,1cyclictest65850irq/126-lan19:25:250
2187899109,1cyclictest65850irq/126-lan21:00:120
218939998,1cyclictest743-21snmpd22:46:393
218789999,0cyclictest65850irq/126-lan23:11:280
218939988,0cyclictest743-21snmpd21:46:403
218939988,0cyclictest743-21snmpd20:30:073
218939988,0cyclictest741-21lldpd22:27:093
218939987,1cyclictest743-21snmpd23:30:383
218939987,1cyclictest743-21snmpd23:10:083
218939987,1cyclictest743-21snmpd21:31:063
218939987,1cyclictest743-21snmpd00:32:293
218939987,1cyclictest741-21lldpd21:18:093
218939987,1cyclictest506-21systemd-resolve19:45:073
218939986,2cyclictest743-21snmpd21:36:023
218939986,2cyclictest743-21snmpd21:02:293
218939986,2cyclictest743-21snmpd00:08:243
218939984,3cyclictest743-21snmpd22:05:123
218919988,0cyclictest743-21snmpd23:54:512
218919988,0cyclictest743-21snmpd22:45:362
218919988,0cyclictest743-21snmpd20:48:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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