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2026-08-04 - 18:34

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 Aug 04, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32523991918,1cyclictest65850irq/126-lan10:30:110
32523991918,1cyclictest65850irq/126-lan07:14:570
32523991818,0cyclictest65850irq/126-lan10:41:400
32523991818,0cyclictest65850irq/126-lan08:35:200
32523991818,0cyclictest65850irq/126-lan08:24:010
32523991818,0cyclictest65850irq/126-lan08:00:170
32523991817,1cyclictest65850irq/126-lan09:55:180
32523991817,1cyclictest65850irq/126-lan09:10:210
32523991817,1cyclictest65850irq/126-lan09:05:150
32523991817,1cyclictest65850irq/126-lan07:30:160
32523991717,0cyclictest65850irq/126-lan12:05:120
32523991717,0cyclictest65850irq/126-lan11:45:170
32523991717,0cyclictest65850irq/126-lan08:55:010
32523991717,0cyclictest65850irq/126-lan08:50:140
32523991717,0cyclictest65850irq/126-lan08:25:170
32523991717,0cyclictest65850irq/126-lan07:40:130
32523991716,1cyclictest65850irq/126-lan10:15:220
32523991716,1cyclictest65850irq/126-lan10:05:190
32523991716,1cyclictest65850irq/126-lan08:15:190
32523991616,0cyclictest65850irq/126-lan11:55:210
32523991616,0cyclictest65850irq/126-lan11:19:520
32523991616,0cyclictest65850irq/126-lan10:55:160
32523991616,0cyclictest65850irq/126-lan10:45:150
32523991616,0cyclictest65850irq/126-lan10:00:150
32523991616,0cyclictest65850irq/126-lan09:30:130
32523991616,0cyclictest65850irq/126-lan08:33:300
32523991616,0cyclictest65850irq/126-lan08:10:120
32523991616,0cyclictest65850irq/126-lan07:53:000
32523991615,1cyclictest65850irq/126-lan12:20:190
32523991615,1cyclictest65850irq/126-lan12:19:250
32523991615,1cyclictest65850irq/126-lan11:30:150
32523991615,1cyclictest65850irq/126-lan11:05:190
32523991615,1cyclictest65850irq/126-lan10:53:540
32523991615,1cyclictest65850irq/126-lan10:20:120
32523991615,1cyclictest65850irq/126-lan09:16:390
32523991615,1cyclictest65850irq/126-lan08:05:210
32530991515,0cyclictest26648-21cat10:50:131
32523991515,0cyclictest65850irq/126-lan12:35:160
32523991515,0cyclictest65850irq/126-lan10:35:160
32523991515,0cyclictest65850irq/126-lan10:10:180
32523991515,0cyclictest65850irq/126-lan09:45:130
32523991515,0cyclictest65850irq/126-lan09:25:140
32523991515,0cyclictest65850irq/126-lan09:20:110
32523991515,0cyclictest65850irq/126-lan07:35:210
32523991514,1cyclictest65850irq/126-lan12:10:170
32523991514,1cyclictest65850irq/126-lan08:45:200
32523991414,0cyclictest65850irq/126-lan12:25:180
32523991414,0cyclictest65850irq/126-lan11:00:150
32523991414,0cyclictest65850irq/126-lan09:00:140
32523991414,0cyclictest65850irq/126-lan07:20:180
32523991413,1cyclictest65850irq/126-lan12:00:150
32523991413,1cyclictest65850irq/126-lan11:50:160
32523991413,1cyclictest65850irq/126-lan09:50:130
32530991313,0cyclictest743-21snmpd10:32:331
32530991313,0cyclictest743-21snmpd08:28:171
32530991313,0cyclictest743-21snmpd08:05:451
32530991313,0cyclictest743-21snmpd07:16:101
32530991313,0cyclictest19431-21cat07:55:141
32523991313,0cyclictest65850irq/126-lan11:36:000
32530991212,0cyclictest8854-21cat07:30:151
32530991212,0cyclictest743-21snmpd10:07:571
32530991212,0cyclictest743-21snmpd09:11:551
32530991212,0cyclictest743-21snmpd08:53:011
32530991212,0cyclictest24639-21cat10:45:131
32523991212,0cyclictest65850irq/126-lan11:25:130
32523991212,0cyclictest65850irq/126-lan10:25:130
32523991212,0cyclictest65850irq/126-lan09:40:160
32523991211,1cyclictest65850irq/126-lan07:20:000
32530991111,0cyclictest743-21snmpd12:38:021
32530991111,0cyclictest743-21snmpd11:52:551
32530991111,0cyclictest743-21snmpd11:37:421
32530991111,0cyclictest743-21snmpd11:31:511
32530991111,0cyclictest743-21snmpd10:00:421
32530991111,0cyclictest743-21snmpd07:52:171
32530991111,0cyclictest20949-21cat11:55:161
32523991111,0cyclictest65850irq/126-lan11:43:170
32523991111,0cyclictest65850irq/126-lan09:35:220
32523991111,0cyclictest65850irq/126-lan08:43:430
32523991110,1cyclictest65850irq/126-lan07:55:120
32523991010,0cyclictest743-21snmpd12:32:260
32523991010,0cyclictest65850irq/126-lan11:10:130
32523991010,0cyclictest65850irq/126-lan07:45:150
325389998,1cyclictest741-21lldpd09:36:323
325389998,1cyclictest741-21lldpd07:25:333
325389996,3cyclictest743-21snmpd07:42:263
325359998,1cyclictest743-21snmpd08:09:272
325359998,1cyclictest741-21lldpd09:41:232
325309999,0cyclictest743-21snmpd12:09:101
325309998,1cyclictest743-21snmpd11:25:031
325309998,1cyclictest741-21lldpd11:44:281
325239999,0cyclictest65850irq/126-lan11:20:150
325389988,0cyclictest743-21snmpd12:38:353
325389988,0cyclictest743-21snmpd11:57:103
325389988,0cyclictest743-21snmpd10:53:563
325389988,0cyclictest743-21snmpd10:14:093
325389988,0cyclictest743-21snmpd07:45:233
325389988,0cyclictest741-21lldpd11:51:503
325389988,0cyclictest741-21lldpd11:08:183
325389988,0cyclictest741-21lldpd09:02:303
325389987,1cyclictest743-21snmpd11:46:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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