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2026-07-26 - 14:05

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 Jul 26, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13376991918,1cyclictest65850irq/126-lan22:16:320
13376991918,1cyclictest65850irq/126-lan21:01:040
13384991818,0cyclictest743-21snmpd20:12:161
13376991817,1cyclictest65850irq/126-lan23:55:200
13376991817,1cyclictest65850irq/126-lan23:11:320
13376991817,1cyclictest65850irq/126-lan22:30:170
13376991817,1cyclictest65850irq/126-lan19:30:130
13376991817,1cyclictest65850irq/126-lan00:00:190
13376991717,0cyclictest65850irq/126-lan22:45:170
13376991717,0cyclictest65850irq/126-lan21:30:000
13376991717,0cyclictest65850irq/126-lan19:55:180
13376991717,0cyclictest65850irq/126-lan00:21:340
13376991716,1cyclictest65850irq/126-lan21:55:200
13376991716,1cyclictest65850irq/126-lan20:45:130
13376991716,1cyclictest65850irq/126-lan19:35:160
13376991716,1cyclictest65850irq/126-lan00:10:140
13376991616,0cyclictest65850irq/126-lan22:37:250
13376991616,0cyclictest65850irq/126-lan22:00:170
13376991616,0cyclictest65850irq/126-lan21:15:200
13376991616,0cyclictest65850irq/126-lan20:55:220
13376991616,0cyclictest65850irq/126-lan20:50:140
13376991615,1cyclictest65850irq/126-lan23:45:160
13376991615,1cyclictest65850irq/126-lan23:35:190
13376991615,1cyclictest65850irq/126-lan23:25:110
13376991615,1cyclictest65850irq/126-lan23:19:590
13376991615,1cyclictest65850irq/126-lan23:00:160
13376991615,1cyclictest65850irq/126-lan22:20:180
13376991615,1cyclictest65850irq/126-lan22:09:320
13376991615,1cyclictest65850irq/126-lan20:30:180
13376991615,1cyclictest65850irq/126-lan20:25:130
13376991615,1cyclictest65850irq/126-lan19:45:150
13376991515,0cyclictest65850irq/126-lan23:33:320
13376991515,0cyclictest65850irq/126-lan22:55:140
13376991515,0cyclictest65850irq/126-lan22:40:180
13376991515,0cyclictest65850irq/126-lan22:25:220
13376991515,0cyclictest65850irq/126-lan21:50:200
13376991515,0cyclictest65850irq/126-lan21:35:220
13376991515,0cyclictest65850irq/126-lan21:10:110
13376991515,0cyclictest65850irq/126-lan20:40:140
13376991515,0cyclictest65850irq/126-lan20:15:190
13376991515,0cyclictest65850irq/126-lan19:15:140
13376991514,1cyclictest65850irq/126-lan23:50:180
13376991514,1cyclictest65850irq/126-lan23:15:240
13376991514,1cyclictest65850irq/126-lan22:10:210
13376991514,1cyclictest65850irq/126-lan21:45:140
13376991514,1cyclictest65850irq/126-lan20:10:180
13376991514,1cyclictest65850irq/126-lan20:01:240
13376991514,1cyclictest65850irq/126-lan19:21:300
13376991514,1cyclictest65850irq/126-lan00:25:220
13376991414,0cyclictest65850irq/126-lan20:35:220
13376991413,1cyclictest65850irq/126-lan21:20:160
13376991413,1cyclictest65850irq/126-lan20:20:150
13376991413,1cyclictest65850irq/126-lan00:30:170
13376991413,1cyclictest65850irq/126-lan00:15:200
13376991313,0cyclictest65850irq/126-lan21:40:190
13376991313,0cyclictest65850irq/126-lan00:35:180
13376991312,1cyclictest65850irq/126-lan23:40:170
13376991312,1cyclictest65850irq/126-lan20:05:140
13376991312,1cyclictest65850irq/126-lan19:27:460
13376991312,1cyclictest65850irq/126-lan00:05:150
1338999129,3cyclictest717-21ntpd22:00:212
13376991212,0cyclictest65850irq/126-lan19:40:270
13376991211,1cyclictest65850irq/126-lan19:50:220
1338999118,3cyclictest743-21snmpd21:20:152
1338999118,3cyclictest743-21snmpd20:46:322
1338999107,3cyclictest743-21snmpd00:17:452
1338999106,4cyclictest743-21snmpd23:37:202
1338999106,3cyclictest743-21snmpd22:55:122
133939998,1cyclictest743-21snmpd20:46:383
133939998,1cyclictest22440-21cron22:10:003
133899998,1cyclictest743-21snmpd21:07:122
133899997,2cyclictest741-21lldpd23:17:192
133899997,2cyclictest741-21lldpd20:26:232
133899997,2cyclictest741-21lldpd20:14:452
133899996,3cyclictest743-21snmpd22:14:082
133899996,3cyclictest743-21snmpd21:28:352
133899996,3cyclictest30245-21gltestperf23:45:142
133899995,4cyclictest743-21snmpd23:53:232
133899995,4cyclictest743-21snmpd23:41:442
133899995,4cyclictest743-21snmpd20:59:382
133899995,4cyclictest743-21snmpd20:02:282
133899995,1cyclictest743-21snmpd22:32:062
133899993,3cyclictest29759-21memory22:25:162
133849998,1cyclictest743-21snmpd20:40:231
133769998,1cyclictest65850irq/126-lan21:25:000
133769998,1cyclictest65850irq/126-lan21:05:190
133939988,0cyclictest743-21snmpd20:58:143
133939988,0cyclictest741-21lldpd20:32:233
133939987,1cyclictest743-21snmpd21:40:453
133939987,1cyclictest741-21lldpd00:14:363
133939986,2cyclictest743-21snmpd19:46:113
133939986,2cyclictest743-21snmpd00:27:333
133939986,2cyclictest32070-21cat22:30:173
133899988,0cyclictest743-21snmpd00:33:542
133899988,0cyclictest741-21lldpd21:54:262
133899988,0cyclictest741-21lldpd20:41:232
133899988,0cyclictest741-21lldpd19:50:342
133899988,0cyclictest741-21lldpd00:23:482
133899986,2cyclictest743-21snmpd23:29:372
133899986,2cyclictest743-21snmpd21:57:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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