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2026-04-27 - 04:38

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 Apr 27, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26431991817,1cyclictest65850irq/126-lan19:57:443
26431991817,1cyclictest65850irq/126-lan00:15:193
26431991816,2cyclictest65850irq/126-lan22:40:163
26431991816,2cyclictest65850irq/126-lan19:50:223
26428991818,0cyclictest5480-21cat20:55:162
26428991817,1cyclictest743-21snmpd20:05:562
26431991717,0cyclictest65850irq/126-lan00:20:203
26431991716,1cyclictest65850irq/126-lan22:25:053
26431991716,1cyclictest65850irq/126-lan21:40:203
26431991716,1cyclictest65850irq/126-lan21:08:463
26431991716,1cyclictest65850irq/126-lan19:45:173
26431991716,1cyclictest65850irq/126-lan19:40:163
26431991716,1cyclictest65850irq/126-lan19:40:163
26431991715,2cyclictest65850irq/126-lan22:50:223
26431991715,2cyclictest65850irq/126-lan22:05:183
26428991717,0cyclictest743-21snmpd23:45:192
26428991717,0cyclictest743-21snmpd23:44:502
26428991717,0cyclictest743-21snmpd22:12:202
26428991717,0cyclictest743-21snmpd20:50:442
26428991717,0cyclictest689-21cat19:25:142
26431991616,0cyclictest65850irq/126-lan23:50:463
26431991616,0cyclictest65850irq/126-lan22:38:463
26431991615,1cyclictest65850irq/126-lan23:45:133
26431991615,1cyclictest65850irq/126-lan23:40:183
26431991615,1cyclictest65850irq/126-lan22:55:183
26431991615,1cyclictest65850irq/126-lan21:35:153
26431991615,1cyclictest65850irq/126-lan21:28:443
26431991615,1cyclictest65850irq/126-lan20:55:453
26431991615,1cyclictest65850irq/126-lan20:40:203
26431991615,1cyclictest65850irq/126-lan19:35:183
26431991615,1cyclictest65850irq/126-lan19:30:123
26431991615,1cyclictest65850irq/126-lan00:30:223
26431991614,2cyclictest65850irq/126-lan23:20:013
26431991614,2cyclictest65850irq/126-lan21:16:493
26431991614,2cyclictest65850irq/126-lan20:50:163
26431991614,2cyclictest65850irq/126-lan00:05:103
26431991515,0cyclictest65850irq/126-lan23:07:003
26431991515,0cyclictest65850irq/126-lan23:02:453
26431991514,1cyclictest65850irq/126-lan23:25:193
26431991514,1cyclictest65850irq/126-lan22:15:113
26431991514,1cyclictest65850irq/126-lan22:00:133
26431991514,1cyclictest65850irq/126-lan00:35:123
26431991513,2cyclictest65850irq/126-lan22:31:593
26431991513,2cyclictest65850irq/126-lan20:30:293
26428991515,0cyclictest743-21snmpd21:37:042
26431991414,0cyclictest65850irq/126-lan23:30:173
26431991414,0cyclictest65850irq/126-lan21:20:153
26431991414,0cyclictest65850irq/126-lan20:25:223
26431991414,0cyclictest65850irq/126-lan20:15:183
26431991413,1cyclictest65850irq/126-lan23:55:223
26431991413,1cyclictest65850irq/126-lan23:15:133
26431991413,1cyclictest65850irq/126-lan00:10:133
26431991413,1cyclictest65850irq/126-lan00:00:453
26431991412,2cyclictest65850irq/126-lan21:10:103
26431991412,2cyclictest65850irq/126-lan20:35:153
26431991412,2cyclictest65850irq/126-lan19:10:153
26431991313,0cyclictest65850irq/126-lan22:21:043
26431991313,0cyclictest65850irq/126-lan21:30:183
26431991313,0cyclictest65850irq/126-lan20:21:453
26431991313,0cyclictest65850irq/126-lan20:05:153
26431991312,1cyclictest65850irq/126-lan20:10:183
26431991312,1cyclictest65850irq/126-lan20:00:183
26431991311,2cyclictest65850irq/126-lan21:50:163
26428991313,0cyclictest22124-21fwupd00:10:392
26431991212,0cyclictest65850irq/126-lan19:25:123
26431991212,0cyclictest65850irq/126-lan19:15:133
26431991211,1cyclictest65850irq/126-lan21:54:593
26431991210,2cyclictest65850irq/126-lan23:10:173
2643199119,2cyclictest65850irq/126-lan19:20:183
26431991111,0cyclictest65850irq/126-lan20:45:123
26431991110,1cyclictest65850irq/126-lan00:25:193
2643199109,1cyclictest65850irq/126-lan23:35:133
2643199109,1cyclictest65850irq/126-lan22:14:343
264319997,2cyclictest65850irq/126-lan22:45:173
264289998,1cyclictest743-21snmpd20:19:062
264269998,1cyclictest743-21snmpd22:21:251
264269998,1cyclictest743-21snmpd22:04:311
264269998,1cyclictest741-21lldpd20:36:531
264219998,1cyclictest743-21snmpd23:56:050
264219998,1cyclictest743-21snmpd20:11:290
264219998,1cyclictest743-21snmpd20:06:060
264219998,1cyclictest741-21lldpd23:49:400
264289988,0cyclictest743-21snmpd23:09:272
264289988,0cyclictest743-21snmpd20:02:052
264289988,0cyclictest741-21lldpd20:28:362
264289988,0cyclictest741-21lldpd00:04:252
264289987,1cyclictest743-21snmpd21:30:502
264289987,1cyclictest11352-21kworker/2:0+events20:24:462
264289986,2cyclictest743-21snmpd22:40:122
264289986,2cyclictest743-21snmpd19:54:412
264269988,0cyclictest743-21snmpd22:32:551
264269988,0cyclictest743-21snmpd21:51:061
264269988,0cyclictest743-21snmpd20:16:121
264269988,0cyclictest741-21lldpd23:29:131
264269988,0cyclictest741-21lldpd22:41:091
264269988,0cyclictest741-21lldpd19:10:351
264269987,1cyclictest743-21snmpd21:33:591
264269987,1cyclictest743-21snmpd00:14:091
264269987,1cyclictest743-21snmpd00:06:381
264269987,1cyclictest741-21lldpd23:39:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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