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2026-06-17 - 20:51

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 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 Wed Jun 17, 2026 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23135992726,1cyclictest12180-21fwupd12:00:021
23148991919,0cyclictest65850irq/126-lan12:32:003
23148991918,1cyclictest65850irq/126-lan08:55:173
23148991818,0cyclictest65850irq/126-lan10:15:133
23148991817,1cyclictest65850irq/126-lan12:25:143
23148991817,1cyclictest65850irq/126-lan11:50:193
23148991817,1cyclictest65850irq/126-lan10:30:173
23148991817,1cyclictest65850irq/126-lan09:04:043
23148991817,1cyclictest65850irq/126-lan08:40:123
23148991817,1cyclictest65850irq/126-lan07:50:163
23148991717,0cyclictest65850irq/126-lan11:20:193
23148991717,0cyclictest65850irq/126-lan09:35:223
23148991716,1cyclictest65850irq/126-lan08:30:123
23148991716,1cyclictest65850irq/126-lan08:15:173
23143991717,0cyclictest743-21snmpd12:35:342
23143991717,0cyclictest743-21snmpd12:28:042
23143991717,0cyclictest743-21snmpd12:08:392
23143991717,0cyclictest743-21snmpd10:22:252
23143991717,0cyclictest743-21snmpd10:16:242
23143991717,0cyclictest743-21snmpd09:15:132
23143991717,0cyclictest743-21snmpd08:17:352
23143991717,0cyclictest743-21snmpd07:47:402
23143991717,0cyclictest26553-21cat09:55:122
23148991616,0cyclictest65850irq/126-lan11:35:233
23148991616,0cyclictest65850irq/126-lan11:30:203
23148991616,0cyclictest65850irq/126-lan10:55:123
23148991616,0cyclictest65850irq/126-lan10:03:073
23148991616,0cyclictest65850irq/126-lan09:45:143
23148991616,0cyclictest65850irq/126-lan08:35:163
23148991616,0cyclictest65850irq/126-lan08:10:173
23148991616,0cyclictest65850irq/126-lan07:45:143
23148991615,1cyclictest65850irq/126-lan12:00:003
23148991615,1cyclictest65850irq/126-lan11:19:003
23148991615,1cyclictest65850irq/126-lan11:00:183
23148991615,1cyclictest65850irq/126-lan10:50:173
23143991616,0cyclictest743-21snmpd12:32:382
23143991616,0cyclictest743-21snmpd12:17:282
23148991515,0cyclictest65850irq/126-lan12:20:203
23148991515,0cyclictest65850irq/126-lan09:33:573
23148991515,0cyclictest65850irq/126-lan09:05:113
23148991515,0cyclictest65850irq/126-lan07:25:153
23148991515,0cyclictest65850irq/126-lan07:15:163
23148991514,1cyclictest65850irq/126-lan11:25:203
23148991514,1cyclictest65850irq/126-lan10:45:133
23148991514,1cyclictest65850irq/126-lan10:20:183
23148991514,1cyclictest65850irq/126-lan09:50:163
23148991514,1cyclictest65850irq/126-lan09:25:003
23130991515,0cyclictest743-21snmpd11:18:170
23148991414,0cyclictest65850irq/126-lan12:10:183
23148991414,0cyclictest65850irq/126-lan11:05:123
23148991414,0cyclictest65850irq/126-lan10:40:113
23148991414,0cyclictest65850irq/126-lan09:20:143
23148991414,0cyclictest65850irq/126-lan09:15:123
23148991414,0cyclictest65850irq/126-lan07:20:203
23148991413,1cyclictest65850irq/126-lan10:05:183
23148991413,1cyclictest65850irq/126-lan07:55:123
23148991413,1cyclictest65850irq/126-lan07:40:203
23148991413,1cyclictest65850irq/126-lan07:35:193
23130991414,0cyclictest743-21snmpd11:09:200
23130991414,0cyclictest743-21snmpd08:52:580
23148991313,0cyclictest65850irq/126-lan12:08:583
23148991313,0cyclictest65850irq/126-lan09:10:163
23148991313,0cyclictest65850irq/126-lan08:25:143
23148991312,1cyclictest65850irq/126-lan12:00:013
23148991312,1cyclictest65850irq/126-lan11:45:203
23148991312,1cyclictest65850irq/126-lan11:40:213
23148991312,1cyclictest65850irq/126-lan10:35:213
23148991312,1cyclictest65850irq/126-lan10:25:123
23148991312,1cyclictest65850irq/126-lan07:10:253
23143991313,0cyclictest743-21snmpd07:14:062
23130991313,0cyclictest743-21snmpd11:11:000
23130991313,0cyclictest743-21snmpd07:19:190
23148991212,0cyclictest65850irq/126-lan12:35:133
23148991212,0cyclictest65850irq/126-lan09:55:143
23148991211,1cyclictest65850irq/126-lan10:10:123
23148991211,1cyclictest65850irq/126-lan09:40:093
23148991211,1cyclictest65850irq/126-lan08:45:203
23148991211,1cyclictest65850irq/126-lan07:35:003
23143991212,0cyclictest8589-21cat11:50:132
23143991212,0cyclictest743-21snmpd09:20:432
23148991111,0cyclictest65850irq/126-lan11:10:163
23148991110,1cyclictest65850irq/126-lan08:00:163
23130991111,0cyclictest743-21snmpd11:51:210
23130991111,0cyclictest743-21snmpd10:37:370
23130991111,0cyclictest743-21snmpd09:33:020
23130991111,0cyclictest743-21snmpd09:07:460
23130991111,0cyclictest743-21snmpd08:05:050
23130991111,0cyclictest743-21snmpd07:55:110
23130991111,0cyclictest743-21snmpd07:32:290
23130991010,0cyclictest743-21snmpd12:32:200
23130991010,0cyclictest743-21snmpd12:00:580
23130991010,0cyclictest743-21snmpd11:44:150
23130991010,0cyclictest743-21snmpd11:26:180
23130991010,0cyclictest743-21snmpd10:58:530
23130991010,0cyclictest743-21snmpd10:43:350
23130991010,0cyclictest743-21snmpd10:13:330
23130991010,0cyclictest743-21snmpd10:08:390
23130991010,0cyclictest743-21snmpd09:56:170
23130991010,0cyclictest743-21snmpd09:24:300
23130991010,0cyclictest743-21snmpd07:54:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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