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2025-11-09 - 16:56

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 Nov 09, 2025 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7537992219,3cyclictest66850irq/125-lan12:15:182
7537992018,2cyclictest66850irq/125-lan10:39:082
7537992017,3cyclictest66850irq/125-lan09:38:462
7537991918,1cyclictest66850irq/125-lan12:10:162
7537991918,1cyclictest66850irq/125-lan11:35:562
7537991918,1cyclictest66850irq/125-lan11:10:192
7537991918,1cyclictest66850irq/125-lan10:15:232
7537991918,1cyclictest66850irq/125-lan09:13:452
7537991917,2cyclictest66850irq/125-lan12:20:522
7537991917,2cyclictest66850irq/125-lan11:51:572
7537991917,2cyclictest66850irq/125-lan11:47:542
7537991917,2cyclictest66850irq/125-lan10:33:502
7537991818,0cyclictest66850irq/125-lan12:30:332
7537991818,0cyclictest66850irq/125-lan11:55:112
7537991818,0cyclictest66850irq/125-lan11:15:242
7537991817,1cyclictest66850irq/125-lan12:25:182
7537991817,1cyclictest66850irq/125-lan12:07:032
7537991817,1cyclictest66850irq/125-lan12:00:172
7537991817,1cyclictest66850irq/125-lan11:04:352
7537991817,1cyclictest66850irq/125-lan10:27:542
7537991817,1cyclictest66850irq/125-lan10:11:202
7537991817,1cyclictest66850irq/125-lan09:40:062
7537991817,1cyclictest66850irq/125-lan08:39:352
7537991817,1cyclictest66850irq/125-lan07:15:152
7537991816,2cyclictest66850irq/125-lan11:09:322
7537991816,2cyclictest66850irq/125-lan10:46:132
7537991816,2cyclictest66850irq/125-lan10:41:432
7537991816,2cyclictest66850irq/125-lan09:55:152
7537991816,2cyclictest66850irq/125-lan09:21:512
7537991815,3cyclictest66850irq/125-lan11:42:302
7537991717,0cyclictest66850irq/125-lan10:22:002
7537991717,0cyclictest66850irq/125-lan07:10:212
7537991716,1cyclictest66850irq/125-lan11:31:112
7537991716,1cyclictest66850irq/125-lan11:25:172
7537991716,1cyclictest66850irq/125-lan10:59:032
7537991716,1cyclictest66850irq/125-lan10:05:162
7537991716,1cyclictest66850irq/125-lan10:00:142
7537991716,1cyclictest66850irq/125-lan08:45:212
7537991715,2cyclictest66850irq/125-lan12:35:492
7537991715,2cyclictest66850irq/125-lan11:20:262
7537991715,2cyclictest66850irq/125-lan10:50:182
7537991715,2cyclictest66850irq/125-lan09:46:072
7537991715,2cyclictest66850irq/125-lan09:30:472
7537991714,3cyclictest66850irq/125-lan09:50:132
7542991615,1cyclictest749-21ntpd12:12:253
7537991615,1cyclictest66850irq/125-lan08:15:222
7537991615,1cyclictest66850irq/125-lan07:25:142
7537991615,1cyclictest66850irq/125-lan07:20:202
7537991614,2cyclictest66850irq/125-lan08:00:162
7537991613,3cyclictest66850irq/125-lan09:25:122
7537991613,3cyclictest66850irq/125-lan09:15:172
7525991616,0cyclictest771-21snmpd08:16:410
7537991515,0cyclictest66850irq/125-lan07:34:242
7537991514,1cyclictest66850irq/125-lan09:05:212
7537991514,1cyclictest66850irq/125-lan07:50:142
7537991513,2cyclictest66850irq/125-lan08:50:162
7537991513,2cyclictest66850irq/125-lan08:05:172
7542991414,0cyclictest771-21snmpd09:08:423
7542991414,0cyclictest771-21snmpd08:55:443
7537991413,1cyclictest66850irq/125-lan08:55:212
7537991413,1cyclictest66850irq/125-lan07:45:002
7537991413,1cyclictest66850irq/125-lan07:40:152
7537991412,2cyclictest66850irq/125-lan08:20:142
7525991414,0cyclictest771-21snmpd11:23:250
7542991313,0cyclictest771-21snmpd10:14:383
7542991313,0cyclictest771-21snmpd09:02:363
7542991313,0cyclictest771-21snmpd07:56:423
7542991313,0cyclictest771-21snmpd07:52:043
7542991313,0cyclictest771-21snmpd07:47:223
7542991313,0cyclictest771-21snmpd07:34:553
7542991313,0cyclictest771-21snmpd07:17:573
7542991313,0cyclictest6622-21cat09:25:143
7542991311,2cyclictest749-21ntpd12:16:033
7537991312,1cyclictest66850irq/125-lan07:55:142
7537991312,1cyclictest66850irq/125-lan07:35:162
7525991313,0cyclictest771-21snmpd11:55:140
7525991313,0cyclictest771-21snmpd10:49:090
7525991313,0cyclictest771-21snmpd08:28:350
7542991212,0cyclictest771-21snmpd12:22:453
7542991212,0cyclictest771-21snmpd10:35:363
7542991212,0cyclictest771-21snmpd10:01:503
7542991212,0cyclictest771-21snmpd09:58:563
7542991212,0cyclictest771-21snmpd08:52:093
7542991212,0cyclictest771-21snmpd08:38:233
7542991212,0cyclictest771-21snmpd08:30:593
7542991212,0cyclictest771-21snmpd08:01:233
7542991212,0cyclictest771-21snmpd07:36:163
7542991212,0cyclictest771-21snmpd07:21:453
7542991212,0cyclictest27490-21cat11:35:143
7542991212,0cyclictest14227-21cat07:25:143
7537991212,0cyclictest66850irq/125-lan09:00:182
7537991211,1cyclictest66850irq/125-lan08:30:162
7537991211,1cyclictest66850irq/125-lan08:28:362
7525991212,0cyclictest771-21snmpd11:42:370
7525991212,0cyclictest771-21snmpd09:56:520
7525991212,0cyclictest771-21snmpd08:43:360
7525991212,0cyclictest771-21snmpd08:12:140
7525991212,0cyclictest771-21snmpd08:03:340
7525991212,0cyclictest771-21snmpd07:46:570
7525991212,0cyclictest771-21snmpd07:31:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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