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2026-07-24 - 08:50

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 Fri Jul 24, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15511991918,1cyclictest65850irq/126-lan21:22:111
15511991918,1cyclictest65850irq/126-lan00:15:231
15511991917,1cyclictest65850irq/126-lan20:45:141
15511991818,0cyclictest65850irq/126-lan23:15:131
15511991818,0cyclictest65850irq/126-lan20:28:481
15511991818,0cyclictest65850irq/126-lan19:35:251
15511991817,1cyclictest65850irq/126-lan23:38:001
15511991817,1cyclictest65850irq/126-lan21:00:181
15511991817,1cyclictest65850irq/126-lan19:53:411
15511991817,0cyclictest65850irq/126-lan20:00:121
15511991717,0cyclictest65850irq/126-lan20:40:181
15511991717,0cyclictest65850irq/126-lan20:30:251
15511991717,0cyclictest65850irq/126-lan20:14:561
15511991716,1cyclictest65850irq/126-lan23:45:111
15511991716,1cyclictest65850irq/126-lan23:05:171
15511991716,1cyclictest65850irq/126-lan20:15:151
15511991716,1cyclictest65850irq/126-lan00:30:351
15509991717,0cyclictest743-21snmpd00:06:580
15511991616,0cyclictest65850irq/126-lan23:30:131
15511991616,0cyclictest65850irq/126-lan23:20:251
15511991616,0cyclictest65850irq/126-lan22:45:131
15511991616,0cyclictest65850irq/126-lan21:35:191
15511991616,0cyclictest65850irq/126-lan19:30:201
15511991616,0cyclictest65850irq/126-lan19:16:101
15511991616,0cyclictest65850irq/126-lan00:10:151
15511991616,0cyclictest65850irq/126-lan00:00:121
15511991615,1cyclictest65850irq/126-lan22:15:201
15511991615,1cyclictest65850irq/126-lan22:05:141
15511991615,1cyclictest65850irq/126-lan21:25:161
15511991615,1cyclictest65850irq/126-lan20:20:011
15509991616,0cyclictest743-21snmpd23:50:580
15509991616,0cyclictest743-21snmpd23:41:570
15509991616,0cyclictest743-21snmpd23:13:120
15509991616,0cyclictest743-21snmpd21:09:470
15509991616,0cyclictest743-21snmpd21:01:310
15509991616,0cyclictest743-21snmpd20:28:460
15509991616,0cyclictest743-21snmpd20:09:420
15509991616,0cyclictest743-21snmpd19:21:350
15509991616,0cyclictest743-21snmpd19:18:350
15509991616,0cyclictest1907-21cat19:55:140
15509991616,0cyclictest14665-21cat23:05:150
15511991515,0cyclictest65850irq/126-lan23:40:141
15511991515,0cyclictest65850irq/126-lan23:10:191
15511991515,0cyclictest65850irq/126-lan22:35:121
15511991515,0cyclictest65850irq/126-lan22:30:011
15511991515,0cyclictest65850irq/126-lan22:25:111
15511991515,0cyclictest65850irq/126-lan22:02:031
15511991515,0cyclictest65850irq/126-lan21:34:251
15511991515,0cyclictest65850irq/126-lan21:05:141
15511991515,0cyclictest65850irq/126-lan20:55:171
15511991515,0cyclictest65850irq/126-lan19:45:151
15511991515,0cyclictest65850irq/126-lan00:07:391
15509991515,0cyclictest743-21snmpd23:37:300
15509991515,0cyclictest743-21snmpd21:54:150
15509991515,0cyclictest743-21snmpd21:29:270
15509991515,0cyclictest743-21snmpd00:17:340
15509991515,0cyclictest31667-21cat23:45:130
15509991515,0cyclictest16465-21cat20:30:120
15509991515,0cyclictest10640-21cat22:55:150
15511991414,0cyclictest65850irq/126-lan21:45:331
15511991414,0cyclictest65850irq/126-lan21:10:231
15511991414,0cyclictest65850irq/126-lan20:37:311
15511991414,0cyclictest65850irq/126-lan19:20:221
15511991414,0cyclictest65850irq/126-lan00:25:111
15511991413,1cyclictest65850irq/126-lan23:50:161
15511991413,1cyclictest65850irq/126-lan19:40:221
15511991313,0cyclictest65850irq/126-lan21:55:171
15511991313,0cyclictest65850irq/126-lan21:50:231
15511991313,0cyclictest65850irq/126-lan21:20:011
15511991313,0cyclictest65850irq/126-lan19:55:401
15511991313,0cyclictest65850irq/126-lan00:35:211
15511991312,1cyclictest65850irq/126-lan22:50:141
15511991312,1cyclictest65850irq/126-lan22:20:181
15511991312,1cyclictest65850irq/126-lan19:26:341
15511991312,1cyclictest65850irq/126-lan19:10:131
15511991212,0cyclictest65850irq/126-lan22:55:171
15511991212,0cyclictest65850irq/126-lan22:40:141
15511991212,0cyclictest65850irq/126-lan20:50:171
15511991111,0cyclictest743-21snmpd23:29:061
15511991111,0cyclictest65850irq/126-lan23:00:251
1551499108,2cyclictest743-21snmpd00:01:132
1551199109,1cyclictest65850irq/126-lan20:05:181
1551199109,1cyclictest65850irq/126-lan00:20:171
15511991010,0cyclictest65850irq/126-lan23:56:251
155199998,1cyclictest743-21snmpd22:45:533
155199998,1cyclictest743-21snmpd20:52:043
155199998,1cyclictest741-21lldpd23:58:193
155199998,1cyclictest741-21lldpd20:42:493
155149998,1cyclictest743-21snmpd21:12:592
155149998,1cyclictest743-21snmpd20:50:282
155149998,1cyclictest743-21snmpd19:46:482
155149998,1cyclictest741-21lldpd19:37:542
155119999,0cyclictest65850irq/126-lan22:11:261
155099999,0cyclictest741-21lldpd21:39:430
155099998,1cyclictest743-21snmpd22:36:500
155099998,1cyclictest743-21snmpd19:52:000
155099998,1cyclictest743-21snmpd19:31:500
155099998,1cyclictest743-21snmpd19:28:110
155099998,1cyclictest741-21lldpd23:33:270
155199988,0cyclictest743-21snmpd21:49:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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