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2026-06-08 - 09:53

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 Jun 08, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22984991919,0cyclictest65850irq/126-lan22:15:003
22984991918,1cyclictest65850irq/126-lan22:30:173
22984991818,0cyclictest65850irq/126-lan23:45:133
22984991818,0cyclictest65850irq/126-lan21:51:493
22984991818,0cyclictest65850irq/126-lan20:52:063
22984991817,1cyclictest65850irq/126-lan22:25:013
22984991817,1cyclictest65850irq/126-lan21:33:493
22984991817,1cyclictest65850irq/126-lan00:02:283
22984991717,0cyclictest65850irq/126-lan22:13:543
22984991716,1cyclictest65850irq/126-lan23:55:153
22984991716,1cyclictest65850irq/126-lan23:50:193
22984991716,1cyclictest65850irq/126-lan22:40:143
22984991716,1cyclictest65850irq/126-lan21:10:213
22984991716,1cyclictest65850irq/126-lan20:05:123
22984991716,1cyclictest65850irq/126-lan19:35:143
22984991616,0cyclictest65850irq/126-lan22:50:123
22984991616,0cyclictest65850irq/126-lan21:01:503
22984991616,0cyclictest65850irq/126-lan20:15:163
22984991616,0cyclictest65850irq/126-lan00:05:193
22984991615,1cyclictest65850irq/126-lan23:35:203
22984991615,1cyclictest65850irq/126-lan23:10:153
22984991615,1cyclictest65850irq/126-lan22:35:163
22984991615,1cyclictest65850irq/126-lan22:00:153
22984991615,1cyclictest65850irq/126-lan21:35:143
22984991615,1cyclictest65850irq/126-lan20:25:173
22984991615,1cyclictest65850irq/126-lan00:25:143
22984991515,0cyclictest65850irq/126-lan23:40:183
22984991515,0cyclictest65850irq/126-lan23:08:003
22984991515,0cyclictest65850irq/126-lan22:49:293
22984991515,0cyclictest65850irq/126-lan22:20:223
22984991515,0cyclictest65850irq/126-lan22:06:523
22984991515,0cyclictest65850irq/126-lan20:55:303
22984991515,0cyclictest65850irq/126-lan20:04:283
22984991515,0cyclictest65850irq/126-lan19:50:143
22984991514,1cyclictest65850irq/126-lan23:30:153
22984991514,1cyclictest65850irq/126-lan21:40:153
22984991514,1cyclictest65850irq/126-lan19:55:133
22984991514,1cyclictest65850irq/126-lan19:40:193
22984991514,1cyclictest65850irq/126-lan19:15:143
22984991514,1cyclictest65850irq/126-lan19:10:153
22984991514,1cyclictest65850irq/126-lan00:20:323
22984991414,0cyclictest65850irq/126-lan23:20:133
22984991413,1cyclictest65850irq/126-lan23:25:203
22984991413,1cyclictest65850irq/126-lan21:28:203
22984991413,1cyclictest65850irq/126-lan21:28:203
22984991413,1cyclictest65850irq/126-lan20:35:213
22984991313,0cyclictest65850irq/126-lan21:22:283
22984991313,0cyclictest65850irq/126-lan19:30:203
22984991313,0cyclictest65850irq/126-lan19:20:173
22984991312,1cyclictest65850irq/126-lan21:05:193
22984991312,1cyclictest65850irq/126-lan19:45:143
22984991212,0cyclictest65850irq/126-lan19:25:163
22984991212,0cyclictest65850irq/126-lan00:30:163
22984991211,1cyclictest65850irq/126-lan23:00:203
22984991211,1cyclictest65850irq/126-lan22:55:223
22984991211,1cyclictest65850irq/126-lan00:35:113
22984991111,0cyclictest65850irq/126-lan21:55:233
22984991111,0cyclictest65850irq/126-lan20:20:123
22984991111,0cyclictest65850irq/126-lan00:18:373
22984991110,1cyclictest65850irq/126-lan23:15:113
22984991110,1cyclictest65850irq/126-lan21:46:463
22984991110,1cyclictest65850irq/126-lan20:45:143
22984991110,1cyclictest65850irq/126-lan20:30:113
22984991110,1cyclictest65850irq/126-lan19:10:013
2298499109,1cyclictest65850irq/126-lan21:15:173
2297799108,2cyclictest743-21snmpd23:57:221
2297799107,3cyclictest743-21snmpd20:12:331
2297799106,4cyclictest743-21snmpd23:54:481
2297799105,2cyclictest743-21snmpd21:46:121
229809998,1cyclictest743-21snmpd22:16:252
229809998,1cyclictest743-21snmpd22:04:022
229809998,1cyclictest743-21snmpd20:30:122
229809998,1cyclictest743-21snmpd19:13:032
229809998,1cyclictest743-21snmpd00:26:022
229809998,1cyclictest741-21lldpd22:55:162
229779998,1cyclictest743-21snmpd00:34:281
229779996,3cyclictest743-21snmpd22:49:561
229779996,3cyclictest741-21lldpd19:30:181
229779996,3cyclictest25938-21cat20:35:151
229779995,4cyclictest743-21snmpd23:23:591
229779995,4cyclictest573-21in:imuxsock22:02:331
229779993,1cyclictest0-21swapper/123:40:171
229779992,3cyclictest6359-21grep19:45:191
229729998,1cyclictest743-21snmpd22:41:020
229729998,1cyclictest743-21snmpd20:49:010
229729998,1cyclictest741-21lldpd20:12:100
229849988,0cyclictest65850irq/126-lan20:40:153
229809988,0cyclictest743-21snmpd23:55:162
229809988,0cyclictest743-21snmpd23:34:042
229809988,0cyclictest743-21snmpd21:57:032
229809988,0cyclictest743-21snmpd21:14:082
229809988,0cyclictest743-21snmpd20:48:342
229809988,0cyclictest743-21snmpd20:44:282
229809988,0cyclictest743-21snmpd00:10:112
229809988,0cyclictest741-21lldpd23:00:482
229809988,0cyclictest741-21lldpd21:17:052
229809988,0cyclictest741-21lldpd19:41:402
229809987,1cyclictest743-21snmpd00:00:352
229809986,2cyclictest743-21snmpd22:40:442
229809986,2cyclictest743-21snmpd21:00:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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