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2026-08-02 - 17:24

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 Sun Aug 02, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24148991919,0cyclictest65850irq/126-lan12:30:320
24148991919,0cyclictest65850irq/126-lan09:55:020
24148991818,0cyclictest65850irq/126-lan12:01:040
24148991818,0cyclictest65850irq/126-lan10:40:340
24148991818,0cyclictest65850irq/126-lan07:40:100
24148991817,1cyclictest65850irq/126-lan12:15:190
24148991817,1cyclictest65850irq/126-lan11:51:020
24148991817,1cyclictest65850irq/126-lan11:00:590
24148991817,1cyclictest65850irq/126-lan10:00:120
24148991817,1cyclictest65850irq/126-lan08:34:540
24148991817,1cyclictest65850irq/126-lan08:21:210
24148991817,1cyclictest65850irq/126-lan07:20:230
24148991717,0cyclictest65850irq/126-lan12:20:150
24148991717,0cyclictest65850irq/126-lan11:20:140
24148991717,0cyclictest65850irq/126-lan10:35:210
24148991717,0cyclictest65850irq/126-lan09:50:230
24148991716,1cyclictest65850irq/126-lan12:10:180
24148991716,1cyclictest65850irq/126-lan10:23:410
24148991716,1cyclictest65850irq/126-lan09:30:210
24148991716,1cyclictest65850irq/126-lan08:35:180
24148991716,1cyclictest65850irq/126-lan08:35:170
24148991716,1cyclictest65850irq/126-lan08:25:140
24148991716,1cyclictest65850irq/126-lan08:15:120
24148991616,0cyclictest743-21snmpd07:59:120
24148991616,0cyclictest65850irq/126-lan12:06:550
24148991616,0cyclictest65850irq/126-lan11:15:180
24148991616,0cyclictest65850irq/126-lan11:10:180
24148991616,0cyclictest65850irq/126-lan10:53:070
24148991616,0cyclictest65850irq/126-lan10:45:170
24148991616,0cyclictest65850irq/126-lan09:40:150
24148991616,0cyclictest65850irq/126-lan09:00:210
24148991616,0cyclictest65850irq/126-lan08:10:150
24148991615,1cyclictest65850irq/126-lan10:10:160
24148991615,1cyclictest65850irq/126-lan07:25:120
24148991515,0cyclictest65850irq/126-lan11:49:040
24148991515,0cyclictest65850irq/126-lan10:25:170
24148991515,0cyclictest65850irq/126-lan09:28:370
24148991515,0cyclictest65850irq/126-lan09:21:030
24148991514,1cyclictest65850irq/126-lan11:30:170
24148991514,1cyclictest65850irq/126-lan11:30:000
24148991514,1cyclictest65850irq/126-lan09:45:220
24148991514,1cyclictest65850irq/126-lan09:35:200
24148991514,1cyclictest65850irq/126-lan09:10:150
24148991514,1cyclictest65850irq/126-lan07:35:150
24148991514,1cyclictest65850irq/126-lan07:30:130
24148991414,0cyclictest65850irq/126-lan11:35:210
24148991414,0cyclictest65850irq/126-lan10:30:140
24148991414,0cyclictest65850irq/126-lan10:05:200
24148991414,0cyclictest65850irq/126-lan08:40:140
24148991414,0cyclictest65850irq/126-lan08:00:240
24148991413,1cyclictest65850irq/126-lan12:25:220
24148991413,1cyclictest65850irq/126-lan11:40:220
24148991413,1cyclictest65850irq/126-lan08:50:150
24148991313,0cyclictest65850irq/126-lan10:15:210
24148991313,0cyclictest65850irq/126-lan08:47:330
24148991313,0cyclictest65850irq/126-lan07:54:470
24148991312,1cyclictest65850irq/126-lan09:15:100
24148991312,1cyclictest65850irq/126-lan08:55:200
24148991312,1cyclictest65850irq/126-lan07:18:160
24148991212,0cyclictest743-21snmpd07:49:410
24148991211,1cyclictest65850irq/126-lan12:35:160
24148991211,1cyclictest65850irq/126-lan11:07:440
24148991211,1cyclictest65850irq/126-lan10:55:180
24148991211,1cyclictest65850irq/126-lan07:13:280
24148991111,0cyclictest65850irq/126-lan11:55:140
24148991111,0cyclictest65850irq/126-lan08:08:220
2414899109,1cyclictest65850irq/126-lan09:08:320
241669998,1cyclictest743-21snmpd11:22:213
241669998,1cyclictest741-21lldpd07:53:133
241619998,1cyclictest743-21snmpd08:15:512
241669988,0cyclictest743-21snmpd07:17:343
241669988,0cyclictest741-21lldpd10:16:023
241669988,0cyclictest741-21lldpd10:13:523
241669987,1cyclictest743-21snmpd12:20:353
241669987,1cyclictest743-21snmpd11:11:543
241669987,1cyclictest743-21snmpd10:50:263
241669987,1cyclictest743-21snmpd10:22:403
241669987,1cyclictest743-21snmpd09:41:453
241669987,1cyclictest743-21snmpd09:06:293
241669987,1cyclictest743-21snmpd08:25:403
241669987,1cyclictest741-21lldpd08:50:513
241669986,2cyclictest743-21snmpd07:59:243
241669986,2cyclictest743-21snmpd07:47:503
241669986,2cyclictest743-21snmpd07:13:163
241669986,2cyclictest717-21ntpd11:31:143
241669986,2cyclictest717-21ntpd11:16:483
241669986,2cyclictest717-21ntpd10:56:593
241669986,2cyclictest717-21ntpd10:08:123
241669986,2cyclictest717-21ntpd10:00:323
241669986,2cyclictest717-21ntpd09:56:063
241669986,2cyclictest717-21ntpd09:50:573
241669986,2cyclictest717-21ntpd09:31:323
241669986,2cyclictest717-21ntpd08:46:253
241669986,2cyclictest717-21ntpd08:41:173
241669986,2cyclictest717-21ntpd08:37:153
241669986,2cyclictest717-21ntpd08:37:153
241669986,2cyclictest717-21ntpd08:34:413
241619988,0cyclictest743-21snmpd12:32:032
241619988,0cyclictest743-21snmpd07:30:412
241619988,0cyclictest741-21lldpd11:45:452
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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