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2026-04-25 - 04:20

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 Sat Apr 25, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8291991818,0cyclictest65850irq/126-lan23:11:233
8291991818,0cyclictest65850irq/126-lan20:00:133
8291991818,0cyclictest65850irq/126-lan19:40:203
8291991817,1cyclictest65850irq/126-lan23:20:213
8291991817,1cyclictest65850irq/126-lan22:25:123
8291991817,1cyclictest65850irq/126-lan21:55:193
8291991817,1cyclictest65850irq/126-lan21:15:043
8291991817,1cyclictest65850irq/126-lan19:20:273
8277991818,0cyclictest28216-21cat21:15:130
8291991717,0cyclictest65850irq/126-lan23:33:243
8291991717,0cyclictest65850irq/126-lan19:45:113
8291991716,1cyclictest65850irq/126-lan22:45:163
8291991716,1cyclictest65850irq/126-lan22:05:163
8291991716,1cyclictest65850irq/126-lan21:45:123
8291991716,1cyclictest65850irq/126-lan21:25:213
8291991716,1cyclictest65850irq/126-lan20:40:133
8291991716,1cyclictest65850irq/126-lan20:40:123
8291991716,1cyclictest65850irq/126-lan00:20:213
8277991717,0cyclictest743-21snmpd23:35:520
8277991717,0cyclictest743-21snmpd23:33:190
8277991717,0cyclictest743-21snmpd21:37:110
8277991717,0cyclictest743-21snmpd19:32:250
8291991616,0cyclictest65850irq/126-lan23:00:133
8291991616,0cyclictest65850irq/126-lan22:40:163
8291991616,0cyclictest65850irq/126-lan22:10:123
8291991616,0cyclictest65850irq/126-lan21:35:153
8291991616,0cyclictest65850irq/126-lan19:38:073
8291991615,1cyclictest65850irq/126-lan23:55:273
8291991615,1cyclictest65850irq/126-lan20:30:133
8291991615,1cyclictest65850irq/126-lan20:25:213
8291991615,1cyclictest65850irq/126-lan20:15:153
8291991615,1cyclictest65850irq/126-lan20:12:233
8277991616,0cyclictest743-21snmpd23:19:540
8277991616,0cyclictest743-21snmpd23:12:300
8277991616,0cyclictest743-21snmpd22:40:260
8277991616,0cyclictest743-21snmpd22:00:040
8277991616,0cyclictest743-21snmpd21:40:420
8277991616,0cyclictest743-21snmpd21:27:300
8277991616,0cyclictest743-21snmpd21:23:360
8277991616,0cyclictest743-21snmpd21:06:320
8277991616,0cyclictest743-21snmpd20:34:010
8277991616,0cyclictest743-21snmpd20:21:450
8277991616,0cyclictest743-21snmpd20:02:080
8277991616,0cyclictest743-21snmpd19:55:540
8277991616,0cyclictest743-21snmpd19:52:530
8277991616,0cyclictest743-21snmpd19:19:070
8277991616,0cyclictest743-21snmpd00:13:520
8277991616,0cyclictest16453-21cat22:05:130
8291991515,0cyclictest65850irq/126-lan23:54:593
8291991515,0cyclictest65850irq/126-lan23:45:163
8291991515,0cyclictest65850irq/126-lan20:55:353
8291991515,0cyclictest65850irq/126-lan19:29:093
8291991515,0cyclictest65850irq/126-lan00:35:203
8291991515,0cyclictest65850irq/126-lan00:15:183
8291991514,1cyclictest65850irq/126-lan21:30:553
8291991514,1cyclictest65850irq/126-lan21:10:103
8291991514,1cyclictest65850irq/126-lan20:05:123
8291991514,1cyclictest65850irq/126-lan19:50:133
8291991514,1cyclictest65850irq/126-lan00:09:243
8291991514,1cyclictest65850irq/126-lan00:00:163
8277991515,0cyclictest743-21snmpd22:50:490
8277991515,0cyclictest743-21snmpd22:37:250
8277991515,0cyclictest743-21snmpd19:35:370
8291991414,0cyclictest65850irq/126-lan22:55:103
8291991414,0cyclictest65850irq/126-lan21:06:013
8291991414,0cyclictest65850irq/126-lan20:54:233
8291991414,0cyclictest65850irq/126-lan20:35:203
8291991413,1cyclictest65850irq/126-lan23:35:143
8291991413,1cyclictest65850irq/126-lan23:25:013
8291991413,1cyclictest65850irq/126-lan23:05:153
8291991413,1cyclictest65850irq/126-lan22:15:143
8291991413,1cyclictest65850irq/126-lan21:20:193
8277991414,0cyclictest22202-21cat21:00:130
8291991313,0cyclictest65850irq/126-lan19:31:413
8291991313,0cyclictest65850irq/126-lan00:25:203
8291991312,1cyclictest65850irq/126-lan23:15:123
8291991312,1cyclictest65850irq/126-lan22:29:593
8291991312,1cyclictest65850irq/126-lan21:00:183
8291991212,0cyclictest65850irq/126-lan00:33:233
8291991211,1cyclictest65850irq/126-lan21:53:513
8291991211,1cyclictest65850irq/126-lan20:20:183
8291991211,1cyclictest65850irq/126-lan19:55:153
8291991110,1cyclictest65850irq/126-lan22:35:173
8291991110,1cyclictest65850irq/126-lan22:20:113
829199109,1cyclictest65850irq/126-lan21:40:133
8291991010,0cyclictest65850irq/126-lan23:40:183
8291991010,0cyclictest65850irq/126-lan19:10:173
82919999,0cyclictest65850irq/126-lan00:10:143
82919998,1cyclictest65850irq/126-lan22:50:203
82919998,1cyclictest65850irq/126-lan19:19:233
82839998,1cyclictest743-21snmpd22:00:061
82779999,0cyclictest741-21lldpd21:12:070
82779998,1cyclictest743-21snmpd21:48:440
82779998,1cyclictest743-21snmpd00:36:270
82849988,0cyclictest743-21snmpd22:45:442
82849988,0cyclictest743-21snmpd20:33:152
82849988,0cyclictest743-21snmpd00:29:592
82849988,0cyclictest741-21lldpd22:41:122
82849987,1cyclictest743-21snmpd23:30:222
82849987,1cyclictest743-21snmpd22:55:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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