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2026-06-10 - 15:41

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 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 Wed Jun 10, 2026 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28957993837,1cyclictest11515-21fwupd09:00:341
28970991918,1cyclictest65850irq/126-lan11:20:003
28970991818,0cyclictest65850irq/126-lan11:45:193
28957991818,0cyclictest65850irq/126-lan11:04:501
28957991818,0cyclictest65850irq/126-lan07:50:531
28957991818,0cyclictest65850irq/126-lan07:25:191
28957991817,1cyclictest65850irq/126-lan09:05:151
28970991717,0cyclictest65850irq/126-lan11:23:453
28970991716,1cyclictest65850irq/126-lan12:25:183
28957991717,0cyclictest65850irq/126-lan10:20:101
28957991717,0cyclictest65850irq/126-lan10:14:391
28957991717,0cyclictest65850irq/126-lan09:57:341
28957991717,0cyclictest65850irq/126-lan08:35:191
28957991717,0cyclictest65850irq/126-lan08:30:341
28957991717,0cyclictest65850irq/126-lan07:45:131
28957991716,1cyclictest65850irq/126-lan09:40:001
28970991616,0cyclictest65850irq/126-lan11:52:333
28970991615,1cyclictest65850irq/126-lan11:55:133
28970991615,1cyclictest65850irq/126-lan11:30:203
28957991616,0cyclictest65850irq/126-lan10:31:161
28957991616,0cyclictest65850irq/126-lan09:36:561
28957991616,0cyclictest65850irq/126-lan08:45:331
28957991616,0cyclictest65850irq/126-lan08:25:311
28957991616,0cyclictest65850irq/126-lan08:15:011
28957991616,0cyclictest65850irq/126-lan08:05:161
28957991616,0cyclictest65850irq/126-lan08:00:111
28957991616,0cyclictest65850irq/126-lan07:43:281
28957991616,0cyclictest65850irq/126-lan07:35:121
28957991616,0cyclictest65850irq/126-lan07:15:111
28970991515,0cyclictest65850irq/126-lan12:36:523
28970991514,1cyclictest65850irq/126-lan12:05:173
28957991515,0cyclictest65850irq/126-lan11:05:131
28957991515,0cyclictest65850irq/126-lan10:55:111
28957991515,0cyclictest65850irq/126-lan10:05:181
28957991515,0cyclictest65850irq/126-lan09:20:201
28957991515,0cyclictest65850irq/126-lan08:55:361
28957991515,0cyclictest65850irq/126-lan08:10:131
28957991514,1cyclictest65850irq/126-lan07:20:171
28970991414,0cyclictest65850irq/126-lan11:09:163
28970991413,1cyclictest65850irq/126-lan12:20:133
28970991413,1cyclictest65850irq/126-lan12:10:113
28970991413,1cyclictest65850irq/126-lan11:40:133
28970991413,1cyclictest65850irq/126-lan11:29:353
28970991413,1cyclictest65850irq/126-lan11:10:163
28957991414,0cyclictest65850irq/126-lan10:36:081
28957991414,0cyclictest65850irq/126-lan10:15:151
28957991414,0cyclictest65850irq/126-lan09:10:161
28957991414,0cyclictest65850irq/126-lan07:55:111
28957991313,0cyclictest65850irq/126-lan10:45:221
28957991313,0cyclictest65850irq/126-lan09:25:101
28957991313,0cyclictest65850irq/126-lan09:15:111
28957991313,0cyclictest65850irq/126-lan08:20:071
28957991313,0cyclictest65850irq/126-lan07:10:121
28970991212,0cyclictest65850irq/126-lan12:03:353
28970991211,1cyclictest65850irq/126-lan12:30:163
28970991211,1cyclictest65850irq/126-lan12:15:113
28970991211,1cyclictest65850irq/126-lan11:35:173
28957991212,0cyclictest65850irq/126-lan10:40:211
28957991212,0cyclictest65850irq/126-lan10:03:341
28957991212,0cyclictest65850irq/126-lan09:50:141
28957991111,0cyclictest65850irq/126-lan09:30:101
28957991110,1cyclictest65850irq/126-lan08:50:101
28957991010,0cyclictest65850irq/126-lan09:45:121
289579999,0cyclictest65850irq/126-lan10:29:591
289529998,1cyclictest743-21snmpd10:49:330
289529998,1cyclictest743-21snmpd07:27:190
289709988,0cyclictest743-21snmpd10:40:463
289709988,0cyclictest743-21snmpd09:42:373
289709988,0cyclictest743-21snmpd08:10:423
289709988,0cyclictest743-21snmpd07:37:383
289709988,0cyclictest741-21lldpd10:04:383
289709988,0cyclictest741-21lldpd09:23:273
289709988,0cyclictest741-21lldpd07:45:543
289709987,1cyclictest743-21snmpd10:29:523
289709987,1cyclictest743-21snmpd07:31:243
289709987,1cyclictest743-21snmpd07:26:103
289709987,1cyclictest741-21lldpd10:45:553
289709986,2cyclictest743-21snmpd09:11:303
289709986,2cyclictest743-21snmpd08:53:513
289709986,2cyclictest743-21snmpd08:18:483
289709986,2cyclictest743-21snmpd07:52:563
289659988,0cyclictest741-21lldpd10:36:132
289659987,1cyclictest743-21snmpd12:25:302
289659987,1cyclictest743-21snmpd08:07:422
289659986,2cyclictest743-21snmpd09:53:342
289659986,2cyclictest743-21snmpd09:25:572
289579988,0cyclictest743-21snmpd12:13:031
289579986,1cyclictest14874-21kworker/1:1+events08:41:321
289529988,0cyclictest743-21snmpd11:22:190
289529988,0cyclictest741-21lldpd09:31:120
289529987,1cyclictest743-21snmpd10:35:570
289529987,1cyclictest743-21snmpd10:29:150
289529987,1cyclictest743-21snmpd10:04:470
289529987,1cyclictest743-21snmpd07:55:200
289529987,1cyclictest741-21lldpd10:11:590
289529986,2cyclictest743-21snmpd11:59:540
289529986,2cyclictest743-21snmpd11:36:200
289529986,2cyclictest743-21snmpd10:42:090
289529986,2cyclictest743-21snmpd07:34:500
289529986,2cyclictest717-21ntpd11:15:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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