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2026-05-30 - 06:11

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 May 30, 2026 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26605992018,2cyclictest65850irq/126-lan23:50:193
26605992018,2cyclictest65850irq/126-lan21:38:033
26605992017,3cyclictest65850irq/126-lan23:55:113
26605991918,1cyclictest65850irq/126-lan19:20:003
26605991817,1cyclictest65850irq/126-lan22:55:003
26605991817,1cyclictest65850irq/126-lan22:35:173
26605991817,1cyclictest65850irq/126-lan21:00:143
26605991817,1cyclictest65850irq/126-lan19:25:153
26605991816,2cyclictest65850irq/126-lan20:35:203
26605991816,2cyclictest65850irq/126-lan20:05:223
26605991716,1cyclictest65850irq/126-lan22:30:113
26605991716,1cyclictest65850irq/126-lan22:08:143
26605991716,1cyclictest65850irq/126-lan22:00:203
26605991716,1cyclictest65850irq/126-lan21:28:153
26605991716,1cyclictest65850irq/126-lan20:30:003
26605991716,1cyclictest65850irq/126-lan20:20:133
26605991716,1cyclictest65850irq/126-lan20:10:163
26605991716,1cyclictest65850irq/126-lan19:10:103
26605991716,1cyclictest65850irq/126-lan00:35:193
26605991716,1cyclictest65850irq/126-lan00:30:133
26605991715,2cyclictest65850irq/126-lan23:45:123
26605991715,2cyclictest65850irq/126-lan21:40:163
26605991715,2cyclictest65850irq/126-lan00:10:203
26605991715,2cyclictest65850irq/126-lan00:02:053
26605991714,3cyclictest65850irq/126-lan21:30:143
26605991616,0cyclictest65850irq/126-lan22:19:063
26605991616,0cyclictest65850irq/126-lan20:50:183
26605991615,1cyclictest65850irq/126-lan23:35:143
26605991615,1cyclictest65850irq/126-lan22:10:143
26605991615,1cyclictest65850irq/126-lan21:45:113
26605991615,1cyclictest65850irq/126-lan20:25:123
26605991615,1cyclictest65850irq/126-lan19:50:163
26605991615,1cyclictest65850irq/126-lan19:30:163
26605991615,1cyclictest65850irq/126-lan19:20:143
26605991615,1cyclictest65850irq/126-lan00:15:163
26605991615,1cyclictest65850irq/126-lan00:09:593
26605991614,2cyclictest65850irq/126-lan23:20:163
26605991614,2cyclictest65850irq/126-lan00:20:143
26605991612,1cyclictest65850irq/126-lan23:25:173
26605991515,0cyclictest65850irq/126-lan23:40:183
26605991515,0cyclictest65850irq/126-lan23:10:203
26605991514,1cyclictest65850irq/126-lan21:20:123
26605991514,1cyclictest65850irq/126-lan20:45:143
26605991514,1cyclictest65850irq/126-lan19:40:143
26601991515,0cyclictest743-21snmpd23:10:102
26605991414,0cyclictest65850irq/126-lan23:05:203
26605991414,0cyclictest65850irq/126-lan22:26:123
26605991414,0cyclictest65850irq/126-lan20:00:013
26605991413,1cyclictest65850irq/126-lan23:15:113
26605991413,1cyclictest65850irq/126-lan22:55:163
26605991413,1cyclictest65850irq/126-lan22:47:113
26605991413,1cyclictest65850irq/126-lan21:15:183
26605991413,1cyclictest65850irq/126-lan20:20:003
26605991413,1cyclictest65850irq/126-lan00:25:193
26605991412,2cyclictest65850irq/126-lan21:55:133
26605991412,0cyclictest65850irq/126-lan20:41:433
26601991414,0cyclictest743-21snmpd23:21:242
26605991313,0cyclictest65850irq/126-lan23:31:263
26605991313,0cyclictest65850irq/126-lan22:20:203
26601991313,0cyclictest743-21snmpd22:55:582
26601991313,0cyclictest743-21snmpd22:15:282
26601991313,0cyclictest743-21snmpd21:43:102
26601991313,0cyclictest743-21snmpd21:37:312
26601991313,0cyclictest743-21snmpd20:42:512
26601991313,0cyclictest743-21snmpd20:39:592
26601991313,0cyclictest743-21snmpd20:28:012
26601991313,0cyclictest743-21snmpd20:20:142
26601991313,0cyclictest743-21snmpd00:02:302
26601991312,1cyclictest743-21snmpd20:53:092
26605991212,0cyclictest65850irq/126-lan21:09:333
26605991211,1cyclictest65850irq/126-lan21:50:133
26605991211,1cyclictest65850irq/126-lan20:55:133
26605991211,1cyclictest65850irq/126-lan19:55:163
26601991212,0cyclictest9809-21cat19:45:142
26601991212,0cyclictest743-21snmpd21:54:552
26601991212,0cyclictest743-21snmpd21:45:422
26601991212,0cyclictest743-21snmpd21:30:542
26601991212,0cyclictest743-21snmpd21:24:342
26601991212,0cyclictest743-21snmpd21:10:182
26601991212,0cyclictest743-21snmpd21:05:362
26601991212,0cyclictest743-21snmpd19:36:222
26601991212,0cyclictest17401-21cat22:40:142
26605991111,0cyclictest65850irq/126-lan22:40:153
26605991111,0cyclictest65850irq/126-lan21:10:143
26605991110,1cyclictest65850irq/126-lan19:35:193
2660599109,1cyclictest65850irq/126-lan23:00:143
26601991010,0cyclictest743-21snmpd00:20:102
266059998,1cyclictest65850irq/126-lan19:45:113
266019998,1cyclictest743-21snmpd21:18:142
266019998,1cyclictest743-21snmpd19:50:282
265969998,1cyclictest741-21lldpd23:56:461
265969998,1cyclictest741-21lldpd21:20:511
265899998,1cyclictest743-21snmpd20:13:350
265899998,1cyclictest743-21snmpd19:40:480
265899998,1cyclictest743-21snmpd00:31:430
265899998,1cyclictest741-21lldpd21:30:000
266019988,0cyclictest743-21snmpd21:56:402
266019988,0cyclictest743-21snmpd19:55:242
266019988,0cyclictest741-21lldpd20:09:162
266019987,1cyclictest743-21snmpd23:46:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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