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2026-05-11 - 19:30

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 May 11, 2026 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23951991919,0cyclictest743-21snmpd12:31:452
23945991918,1cyclictest65850irq/126-lan12:05:131
23951991818,0cyclictest743-21snmpd08:03:362
23951991818,0cyclictest743-21snmpd07:40:502
23945991818,0cyclictest65850irq/126-lan11:38:351
23945991817,1cyclictest65850irq/126-lan11:10:111
23945991817,1cyclictest65850irq/126-lan08:25:131
23945991817,1cyclictest65850irq/126-lan07:40:191
23945991717,0cyclictest65850irq/126-lan11:30:371
23945991716,1cyclictest65850irq/126-lan12:00:201
23945991716,1cyclictest65850irq/126-lan10:55:151
23945991716,1cyclictest65850irq/126-lan10:40:201
23945991716,1cyclictest65850irq/126-lan10:10:061
23945991716,1cyclictest65850irq/126-lan09:10:151
23945991616,0cyclictest65850irq/126-lan12:30:361
23945991616,0cyclictest65850irq/126-lan12:20:221
23945991616,0cyclictest65850irq/126-lan11:54:011
23945991616,0cyclictest65850irq/126-lan09:18:401
23945991615,1cyclictest65850irq/126-lan10:30:161
23945991615,1cyclictest65850irq/126-lan09:55:171
23945991615,1cyclictest65850irq/126-lan09:30:111
23945991615,1cyclictest65850irq/126-lan08:05:191
23945991615,1cyclictest65850irq/126-lan07:25:161
23945991615,1cyclictest65850irq/126-lan07:10:001
23951991514,1cyclictest13074-21kworker/2:2+events08:50:402
23945991515,0cyclictest65850irq/126-lan11:00:211
23945991515,0cyclictest65850irq/126-lan09:25:221
23945991515,0cyclictest65850irq/126-lan07:30:161
23945991514,1cyclictest65850irq/126-lan11:15:201
23945991514,1cyclictest65850irq/126-lan10:25:141
23945991514,1cyclictest65850irq/126-lan10:00:161
23945991514,1cyclictest65850irq/126-lan09:35:181
23945991514,1cyclictest65850irq/126-lan09:05:011
23945991514,1cyclictest65850irq/126-lan08:40:111
23951991413,1cyclictest13074-21kworker/2:2+events10:16:102
23945991414,0cyclictest65850irq/126-lan11:20:211
23945991414,0cyclictest65850irq/126-lan10:05:151
23945991414,0cyclictest65850irq/126-lan08:50:201
23945991413,1cyclictest65850irq/126-lan12:10:121
23945991413,1cyclictest65850irq/126-lan11:59:351
23945991413,1cyclictest65850irq/126-lan10:35:171
23945991413,1cyclictest65850irq/126-lan10:15:201
23945991413,1cyclictest65850irq/126-lan09:45:101
23945991413,1cyclictest65850irq/126-lan08:35:131
23945991413,1cyclictest65850irq/126-lan07:55:161
23945991413,1cyclictest65850irq/126-lan07:35:201
23945991413,1cyclictest65850irq/126-lan07:15:181
23945991313,0cyclictest65850irq/126-lan09:20:181
23945991313,0cyclictest65850irq/126-lan07:20:131
23945991312,1cyclictest65850irq/126-lan11:27:401
23945991312,1cyclictest65850irq/126-lan10:50:171
23945991312,1cyclictest65850irq/126-lan08:18:361
23945991212,0cyclictest65850irq/126-lan11:05:211
23945991212,0cyclictest65850irq/126-lan09:50:121
23945991212,0cyclictest65850irq/126-lan07:50:191
23945991211,1cyclictest65850irq/126-lan10:20:171
23945991211,1cyclictest65850irq/126-lan08:10:141
23945991211,1cyclictest65850irq/126-lan07:45:141
23945991111,0cyclictest65850irq/126-lan08:02:351
23945991110,1cyclictest65850irq/126-lan12:35:171
23945991110,1cyclictest65850irq/126-lan12:25:171
23945991110,1cyclictest65850irq/126-lan11:40:121
23945991110,1cyclictest65850irq/126-lan10:45:211
23945991110,1cyclictest65850irq/126-lan09:43:001
23945991110,1cyclictest65850irq/126-lan09:00:171
23945991110,1cyclictest65850irq/126-lan08:30:131
2395199109,1cyclictest13074-21kworker/2:2+events07:35:112
23945991010,0cyclictest65850irq/126-lan11:45:121
23945991010,0cyclictest65850irq/126-lan08:56:361
23945991010,0cyclictest65850irq/126-lan08:45:181
239559998,1cyclictest743-21snmpd10:56:543
239559998,1cyclictest743-21snmpd08:37:023
239559998,1cyclictest743-21snmpd08:29:433
239399998,1cyclictest743-21snmpd11:33:130
239399998,1cyclictest743-21snmpd10:09:370
239399996,3cyclictest717-21ntpd09:52:320
239559988,0cyclictest743-21snmpd10:17:073
239559988,0cyclictest741-21lldpd12:30:473
239559988,0cyclictest741-21lldpd10:27:433
239559988,0cyclictest741-21lldpd09:04:453
239559987,1cyclictest743-21snmpd12:23:483
239559987,1cyclictest743-21snmpd08:50:363
239559987,1cyclictest743-21snmpd08:41:133
239559987,1cyclictest743-21snmpd08:13:273
239559986,2cyclictest743-21snmpd12:14:163
239559986,2cyclictest743-21snmpd11:20:393
239559986,2cyclictest743-21snmpd09:51:253
239559986,2cyclictest743-21snmpd08:16:463
239559986,2cyclictest743-21snmpd07:35:033
239519988,0cyclictest743-21snmpd10:43:032
239519988,0cyclictest741-21lldpd11:52:242
239519988,0cyclictest741-21lldpd10:59:062
239519988,0cyclictest741-21lldpd09:21:382
239519988,0cyclictest741-21lldpd08:55:312
239519987,1cyclictest743-21snmpd10:48:242
239519987,1cyclictest13074-21kworker/2:2+events08:08:372
239519986,2cyclictest743-21snmpd11:37:362
239519986,2cyclictest743-21snmpd07:45:032
239519986,2cyclictest17625-21cut12:10:122
239519986,2cyclictest13074-21kworker/2:2+events10:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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