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2026-01-11 - 07:15

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 Sun Jan 11, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2140993535,0cyclictest16844-21fwupd22:24:412
2131991918,1cyclictest65850irq/126-lan22:15:180
2131991918,1cyclictest65850irq/126-lan20:35:110
2131991818,0cyclictest743-21snmpd00:19:080
2131991818,0cyclictest65850irq/126-lan23:59:580
2131991818,0cyclictest65850irq/126-lan23:00:120
2131991818,0cyclictest65850irq/126-lan22:26:020
2131991818,0cyclictest65850irq/126-lan20:55:190
2131991818,0cyclictest65850irq/126-lan20:30:210
2131991817,1cyclictest65850irq/126-lan21:57:180
2131991817,1cyclictest65850irq/126-lan21:57:180
2131991717,0cyclictest65850irq/126-lan23:18:340
2131991717,0cyclictest65850irq/126-lan23:10:120
2131991717,0cyclictest65850irq/126-lan22:00:220
2131991717,0cyclictest65850irq/126-lan21:21:210
2131991717,0cyclictest65850irq/126-lan20:26:060
2131991717,0cyclictest65850irq/126-lan19:40:120
2131991716,1cyclictest65850irq/126-lan23:05:130
2131991716,1cyclictest65850irq/126-lan22:45:140
2131991716,1cyclictest65850irq/126-lan22:30:160
2131991616,0cyclictest743-21snmpd20:54:400
2131991616,0cyclictest65850irq/126-lan22:40:170
2131991616,0cyclictest65850irq/126-lan22:35:000
2131991616,0cyclictest65850irq/126-lan21:30:000
2131991616,0cyclictest65850irq/126-lan21:15:170
2131991616,0cyclictest65850irq/126-lan19:30:000
2131991616,0cyclictest65850irq/126-lan00:38:230
2131991616,0cyclictest65850irq/126-lan00:30:130
2131991616,0cyclictest65850irq/126-lan00:25:150
2131991615,1cyclictest65850irq/126-lan22:20:010
2131991615,1cyclictest65850irq/126-lan21:50:140
2131991615,1cyclictest65850irq/126-lan21:44:210
2131991615,1cyclictest65850irq/126-lan21:25:120
2131991615,1cyclictest65850irq/126-lan20:48:560
2131991615,1cyclictest65850irq/126-lan20:00:170
2131991615,1cyclictest65850irq/126-lan19:15:100
2131991615,1cyclictest65850irq/126-lan19:13:350
2131991515,0cyclictest743-21snmpd20:10:200
2131991515,0cyclictest743-21snmpd00:23:120
2131991515,0cyclictest65850irq/126-lan23:41:220
2131991515,0cyclictest65850irq/126-lan21:45:170
2131991515,0cyclictest65850irq/126-lan21:37:220
2131991515,0cyclictest65850irq/126-lan21:10:050
2131991515,0cyclictest65850irq/126-lan20:16:210
2131991514,1cyclictest65850irq/126-lan19:25:120
2131991414,0cyclictest743-21snmpd22:57:350
2131991414,0cyclictest743-21snmpd21:09:160
2131991414,0cyclictest65850irq/126-lan23:50:210
2131991414,0cyclictest65850irq/126-lan23:45:140
2131991414,0cyclictest65850irq/126-lan23:39:040
2131991414,0cyclictest65850irq/126-lan23:30:140
2131991414,0cyclictest65850irq/126-lan23:25:100
2131991414,0cyclictest65850irq/126-lan22:05:170
2131991414,0cyclictest65850irq/126-lan21:00:150
2131991414,0cyclictest65850irq/126-lan20:05:120
2131991414,0cyclictest65850irq/126-lan00:10:200
2131991414,0cyclictest65850irq/126-lan00:00:150
2131991313,0cyclictest743-21snmpd19:35:340
2131991313,0cyclictest743-21snmpd00:09:110
2131991313,0cyclictest65850irq/126-lan19:20:190
2131991312,1cyclictest65850irq/126-lan20:40:140
2131991312,1cyclictest65850irq/126-lan19:45:120
2131991212,0cyclictest65850irq/126-lan23:20:150
2131991212,0cyclictest65850irq/126-lan20:20:170
2131991212,0cyclictest65850irq/126-lan19:55:220
2131991212,0cyclictest65850irq/126-lan19:50:170
2131991211,1cyclictest65850irq/126-lan22:10:110
21409998,1cyclictest743-21snmpd23:45:112
21409998,1cyclictest743-21snmpd21:52:302
21409998,1cyclictest741-21lldpd23:41:092
21369998,1cyclictest743-21snmpd22:35:251
21369998,1cyclictest743-21snmpd20:31:161
21369998,1cyclictest743-21snmpd20:07:261
21369998,1cyclictest743-21snmpd19:42:081
21459988,0cyclictest743-21snmpd19:54:043
21459988,0cyclictest741-21lldpd21:05:343
21459988,0cyclictest506-21systemd-resolve20:09:093
21459987,1cyclictest743-21snmpd23:22:333
21459987,1cyclictest743-21snmpd21:03:043
21459987,1cyclictest741-21lldpd22:16:593
21459987,1cyclictest741-21lldpd20:27:493
21459987,1cyclictest741-21lldpd19:40:483
21459987,1cyclictest11164-21ntp_kernel_pll_19:30:163
21459986,2cyclictest8815-21cat19:25:143
21459986,2cyclictest743-21snmpd22:49:033
21459986,2cyclictest743-21snmpd00:21:483
21409988,0cyclictest743-21snmpd23:07:502
21409988,0cyclictest743-21snmpd22:12:122
21409988,0cyclictest743-21snmpd21:23:112
21409988,0cyclictest743-21snmpd21:18:082
21409988,0cyclictest743-21snmpd00:39:002
21409988,0cyclictest741-21lldpd21:49:522
21409988,0cyclictest741-21lldpd20:40:362
21409988,0cyclictest741-21lldpd20:20:542
21409988,0cyclictest741-21lldpd00:06:262
21409987,1cyclictest743-21snmpd20:02:112
21409986,2cyclictest743-21snmpd20:45:032
21369988,0cyclictest743-21snmpd23:49:431
21369988,0cyclictest741-21lldpd21:05:281
21369987,1cyclictest741-21lldpd00:24:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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