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2026-07-28 - 13:24

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 Tue Jul 28, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27785991818,0cyclictest65850irq/126-lan22:25:220
27785991818,0cyclictest65850irq/126-lan21:55:210
27785991818,0cyclictest65850irq/126-lan20:10:220
27785991817,1cyclictest65850irq/126-lan23:30:160
27785991817,1cyclictest65850irq/126-lan23:10:190
27785991817,1cyclictest65850irq/126-lan21:25:230
27785991817,1cyclictest65850irq/126-lan20:40:170
27785991817,1cyclictest65850irq/126-lan19:25:130
27785991817,1cyclictest65850irq/126-lan00:25:130
27785991717,0cyclictest65850irq/126-lan22:30:190
27785991717,0cyclictest65850irq/126-lan20:15:170
27785991717,0cyclictest65850irq/126-lan00:35:000
27785991716,1cyclictest65850irq/126-lan23:25:260
27785991716,1cyclictest65850irq/126-lan22:54:550
27785991716,1cyclictest65850irq/126-lan22:10:150
27785991716,1cyclictest65850irq/126-lan21:50:120
27785991716,1cyclictest65850irq/126-lan21:30:180
27785991716,1cyclictest65850irq/126-lan19:15:470
27785991716,1cyclictest65850irq/126-lan19:10:140
27785991716,1cyclictest65850irq/126-lan00:10:140
27785991616,0cyclictest65850irq/126-lan23:15:210
27785991616,0cyclictest65850irq/126-lan22:35:210
27785991616,0cyclictest65850irq/126-lan21:16:450
27785991616,0cyclictest65850irq/126-lan19:54:440
27785991616,0cyclictest65850irq/126-lan19:30:170
27785991615,1cyclictest65850irq/126-lan22:15:190
27785991615,1cyclictest65850irq/126-lan21:00:010
27785991615,1cyclictest65850irq/126-lan20:50:220
27785991615,1cyclictest65850irq/126-lan20:50:210
27785991615,1cyclictest65850irq/126-lan20:45:230
27785991615,1cyclictest65850irq/126-lan19:20:110
27785991615,1cyclictest65850irq/126-lan00:00:010
27785991515,0cyclictest65850irq/126-lan22:40:160
27785991515,0cyclictest65850irq/126-lan20:38:440
27785991515,0cyclictest65850irq/126-lan20:05:140
27785991515,0cyclictest65850irq/126-lan19:59:450
27785991515,0cyclictest65850irq/126-lan19:46:450
27785991515,0cyclictest65850irq/126-lan00:05:140
27785991514,1cyclictest65850irq/126-lan23:55:140
27785991514,1cyclictest65850irq/126-lan22:05:140
27785991514,1cyclictest65850irq/126-lan21:40:120
27785991514,1cyclictest65850irq/126-lan20:30:010
27785991514,1cyclictest65850irq/126-lan00:30:210
27785991414,0cyclictest65850irq/126-lan23:47:130
27785991414,0cyclictest65850irq/126-lan23:20:170
27785991414,0cyclictest65850irq/126-lan23:05:180
27785991414,0cyclictest65850irq/126-lan23:02:180
27785991413,1cyclictest65850irq/126-lan23:50:160
27785991413,1cyclictest65850irq/126-lan23:35:140
27785991413,1cyclictest65850irq/126-lan21:05:210
27785991413,1cyclictest65850irq/126-lan21:00:470
27785991413,1cyclictest65850irq/126-lan20:00:230
27785991413,1cyclictest65850irq/126-lan19:35:130
27785991313,0cyclictest65850irq/126-lan22:02:140
27785991313,0cyclictest65850irq/126-lan19:43:560
27785991313,0cyclictest65850irq/126-lan00:15:180
27785991312,1cyclictest65850irq/126-lan22:55:170
27785991312,1cyclictest65850irq/126-lan21:20:140
27785991312,1cyclictest65850irq/126-lan21:10:010
27785991312,1cyclictest65850irq/126-lan20:33:100
27785991312,1cyclictest65850irq/126-lan00:20:140
27785991212,0cyclictest65850irq/126-lan22:46:460
27785991212,0cyclictest65850irq/126-lan21:45:100
27785991211,1cyclictest65850irq/126-lan23:40:160
27785991211,1cyclictest65850irq/126-lan22:20:170
27785991111,0cyclictest65850irq/126-lan21:35:200
27785991111,0cyclictest65850irq/126-lan20:20:120
278019998,1cyclictest743-21snmpd21:57:473
278019998,1cyclictest741-21lldpd23:42:573
278019998,1cyclictest741-21lldpd22:42:033
278019998,1cyclictest741-21lldpd22:29:133
278019998,1cyclictest1462-21needreboot20:40:153
277959998,1cyclictest743-21snmpd20:25:412
277959998,1cyclictest743-21snmpd00:35:142
277959998,1cyclictest506-21systemd-resolve21:13:072
277959996,3cyclictest743-21snmpd23:03:442
277909998,1cyclictest743-21snmpd21:15:571
278019988,0cyclictest743-21snmpd23:27:563
278019988,0cyclictest743-21snmpd23:20:173
278019988,0cyclictest741-21lldpd20:31:163
278019988,0cyclictest741-21lldpd20:10:213
278019988,0cyclictest741-21lldpd19:16:223
278019987,1cyclictest7589-21ntp_offset22:15:183
278019987,1cyclictest743-21snmpd23:36:573
278019987,1cyclictest743-21snmpd19:57:433
278019987,1cyclictest743-21snmpd19:48:063
278019987,1cyclictest743-21snmpd19:34:593
278019987,1cyclictest741-21lldpd21:47:073
278019986,2cyclictest743-21snmpd23:33:243
278019986,2cyclictest743-21snmpd20:05:043
278019986,2cyclictest743-21snmpd00:08:433
277959988,0cyclictest743-21snmpd22:50:012
277959988,0cyclictest743-21snmpd22:03:482
277959988,0cyclictest743-21snmpd21:03:272
277959988,0cyclictest743-21snmpd19:51:272
277959988,0cyclictest743-21snmpd19:46:422
277959988,0cyclictest741-21lldpd23:23:322
277959987,1cyclictest743-21snmpd19:16:532
277959987,1cyclictest741-21lldpd23:41:372
277959987,1cyclictest573-21in:imuxsock21:32:332
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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