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2026-05-26 - 10:24

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 Tue May 26, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21869992018,2cyclictest65850irq/126-lan20:05:131
21869991918,1cyclictest65850irq/126-lan19:55:091
21869991918,1cyclictest65850irq/126-lan19:20:201
21869991918,1cyclictest65850irq/126-lan00:35:221
21869991818,0cyclictest65850irq/126-lan21:53:281
21869991817,1cyclictest65850irq/126-lan23:55:201
21869991817,1cyclictest65850irq/126-lan23:09:281
21869991817,1cyclictest65850irq/126-lan22:45:151
21869991817,1cyclictest65850irq/126-lan22:05:201
21869991817,1cyclictest65850irq/126-lan22:02:521
21869991817,1cyclictest65850irq/126-lan00:00:221
21869991816,2cyclictest65850irq/126-lan23:15:211
21869991816,2cyclictest65850irq/126-lan21:15:131
21869991816,2cyclictest65850irq/126-lan20:20:211
21869991816,2cyclictest65850irq/126-lan19:35:171
21869991816,2cyclictest65850irq/126-lan00:15:181
21869991717,0cyclictest65850irq/126-lan00:13:301
21869991716,1cyclictest65850irq/126-lan23:40:121
21869991716,1cyclictest65850irq/126-lan21:40:141
21869991716,1cyclictest65850irq/126-lan19:40:191
21869991715,2cyclictest65850irq/126-lan20:54:111
21869991715,2cyclictest65850irq/126-lan19:34:281
21869991715,2cyclictest65850irq/126-lan19:34:281
21869991616,0cyclictest65850irq/126-lan23:30:161
21869991616,0cyclictest65850irq/126-lan21:35:181
21869991616,0cyclictest65850irq/126-lan20:30:141
21869991616,0cyclictest65850irq/126-lan19:46:471
21869991615,1cyclictest65850irq/126-lan22:55:201
21869991614,2cyclictest65850irq/126-lan22:19:261
21869991613,3cyclictest65850irq/126-lan20:25:191
21869991613,1cyclictest65850irq/126-lan21:25:141
21865991616,0cyclictest743-21snmpd22:59:480
21869991515,0cyclictest65850irq/126-lan23:45:131
21869991515,0cyclictest65850irq/126-lan21:20:181
21869991514,1cyclictest65850irq/126-lan22:50:151
21869991514,1cyclictest65850irq/126-lan22:35:141
21869991514,1cyclictest65850irq/126-lan21:55:151
21869991514,1cyclictest65850irq/126-lan21:34:221
21869991514,1cyclictest65850irq/126-lan20:36:541
21869991514,1cyclictest65850irq/126-lan20:00:211
21869991514,1cyclictest65850irq/126-lan19:26:381
21869991513,2cyclictest65850irq/126-lan23:35:131
21869991513,2cyclictest65850irq/126-lan22:20:211
21869991512,1cyclictest65850irq/126-lan22:30:171
21865991515,0cyclictest743-21snmpd22:21:020
21865991515,0cyclictest743-21snmpd00:30:400
21869991414,0cyclictest65850irq/126-lan23:25:201
21869991414,0cyclictest65850irq/126-lan23:20:141
21869991414,0cyclictest65850irq/126-lan21:47:291
21869991414,0cyclictest65850irq/126-lan20:45:001
21869991414,0cyclictest65850irq/126-lan19:15:211
21869991414,0cyclictest65850irq/126-lan00:30:171
21869991414,0cyclictest65850irq/126-lan00:26:281
21869991414,0cyclictest65850irq/126-lan00:20:281
21869991413,1cyclictest65850irq/126-lan22:10:201
21869991413,1cyclictest65850irq/126-lan20:55:281
21865991414,0cyclictest743-21snmpd21:20:390
21869991313,0cyclictest65850irq/126-lan23:00:181
21869991313,0cyclictest65850irq/126-lan21:10:131
21869991313,0cyclictest65850irq/126-lan21:01:281
21869991312,1cyclictest65850irq/126-lan23:10:111
21869991312,1cyclictest65850irq/126-lan22:25:141
21869991312,1cyclictest65850irq/126-lan20:16:531
21865991313,0cyclictest743-21snmpd23:55:020
21865991313,0cyclictest743-21snmpd23:01:420
21865991313,0cyclictest743-21snmpd21:12:540
21865991313,0cyclictest743-21snmpd19:58:210
21865991313,0cyclictest743-21snmpd19:26:260
21865991313,0cyclictest21147-21cat00:20:140
21869991211,1cyclictest65850irq/126-lan22:40:181
21869991211,1cyclictest65850irq/126-lan20:10:211
21869991211,1cyclictest65850irq/126-lan00:05:141
21865991212,0cyclictest8568-21cat23:50:140
21865991212,0cyclictest743-21snmpd23:38:230
21865991212,0cyclictest743-21snmpd22:12:280
21865991212,0cyclictest743-21snmpd22:08:040
21865991212,0cyclictest743-21snmpd21:59:340
21865991212,0cyclictest743-21snmpd21:38:450
21865991212,0cyclictest743-21snmpd21:28:330
21865991212,0cyclictest743-21snmpd21:06:080
21865991212,0cyclictest743-21snmpd21:02:200
21865991212,0cyclictest743-21snmpd20:32:100
21865991212,0cyclictest743-21snmpd19:32:170
21865991212,0cyclictest743-21snmpd19:32:160
21865991212,0cyclictest743-21snmpd00:11:090
21865991212,0cyclictest743-21snmpd00:06:080
21865991212,0cyclictest743-21snmpd00:02:050
21865991212,0cyclictest23185-21cat00:25:150
21869991111,0cyclictest65850irq/126-lan20:40:111
21869991111,0cyclictest65850irq/126-lan19:50:211
21869991110,1cyclictest65850irq/126-lan19:10:111
21865991111,0cyclictest743-21snmpd23:30:340
21865991111,0cyclictest743-21snmpd23:20:400
21865991111,0cyclictest743-21snmpd22:49:210
21865991111,0cyclictest743-21snmpd22:15:170
21865991111,0cyclictest743-21snmpd21:48:310
21865991111,0cyclictest743-21snmpd20:24:580
21865991111,0cyclictest743-21snmpd19:44:030
21865991111,0cyclictest27190-21cat00:35:140
21865991111,0cyclictest21964-21cat23:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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