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2026-03-28 - 16:24

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 Sat Mar 28, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12427992119,1cyclictest743-21snmpd10:12:562
12417991918,1cyclictest65850irq/126-lan09:10:160
12417991818,0cyclictest743-21snmpd10:16:210
12417991818,0cyclictest65850irq/126-lan10:45:130
12417991818,0cyclictest65850irq/126-lan09:36:310
12417991818,0cyclictest65850irq/126-lan08:09:050
12417991717,0cyclictest743-21snmpd12:14:570
12417991717,0cyclictest743-21snmpd11:58:470
12417991717,0cyclictest743-21snmpd11:54:570
12417991717,0cyclictest743-21snmpd11:34:520
12417991717,0cyclictest743-21snmpd11:05:570
12417991717,0cyclictest743-21snmpd10:36:230
12417991717,0cyclictest743-21snmpd07:26:470
12417991717,0cyclictest65850irq/126-lan11:41:180
12417991717,0cyclictest65850irq/126-lan09:30:200
12417991717,0cyclictest65850irq/126-lan09:15:190
12417991717,0cyclictest65850irq/126-lan07:41:070
12417991717,0cyclictest28468-21cat11:35:150
12417991716,1cyclictest65850irq/126-lan12:05:110
12417991716,1cyclictest65850irq/126-lan09:52:150
12417991716,1cyclictest65850irq/126-lan08:50:130
12417991716,1cyclictest65850irq/126-lan08:35:120
12417991716,1cyclictest65850irq/126-lan07:50:180
12417991616,0cyclictest743-21snmpd11:22:130
12417991616,0cyclictest743-21snmpd08:31:100
12417991616,0cyclictest743-21snmpd08:29:430
12417991616,0cyclictest743-21snmpd08:15:450
12417991616,0cyclictest743-21snmpd07:23:040
12417991616,0cyclictest65850irq/126-lan10:05:120
12417991616,0cyclictest65850irq/126-lan09:25:100
12417991616,0cyclictest65850irq/126-lan08:40:140
12417991616,0cyclictest65850irq/126-lan07:35:180
12417991616,0cyclictest65850irq/126-lan07:15:120
12417991616,0cyclictest31305-21cat10:25:140
12417991616,0cyclictest29321-21cat10:20:160
12417991616,0cyclictest25259-21cat10:10:140
12417991616,0cyclictest10694-21cat08:20:150
12417991615,1cyclictest65850irq/126-lan12:00:090
12417991615,1cyclictest65850irq/126-lan11:45:120
12417991615,1cyclictest65850irq/126-lan11:10:200
12417991615,1cyclictest65850irq/126-lan10:40:210
12417991615,1cyclictest65850irq/126-lan09:03:160
12427991515,0cyclictest743-21snmpd09:52:432
12427991515,0cyclictest743-21snmpd08:25:492
12417991515,0cyclictest743-21snmpd08:48:590
12417991515,0cyclictest65850irq/126-lan11:15:260
12417991515,0cyclictest65850irq/126-lan11:03:180
12417991515,0cyclictest65850irq/126-lan10:55:120
12417991515,0cyclictest65850irq/126-lan10:50:210
12417991515,0cyclictest65850irq/126-lan08:56:160
12417991515,0cyclictest65850irq/126-lan07:45:100
12417991514,1cyclictest65850irq/126-lan12:20:130
12417991514,1cyclictest65850irq/126-lan10:30:150
12417991514,1cyclictest65850irq/126-lan08:00:190
12417991514,1cyclictest65850irq/126-lan07:55:180
12427991414,0cyclictest743-21snmpd12:32:332
12427991414,0cyclictest743-21snmpd12:23:012
12427991414,0cyclictest743-21snmpd12:19:272
12427991414,0cyclictest743-21snmpd12:08:482
12427991414,0cyclictest743-21snmpd11:47:112
12427991414,0cyclictest743-21snmpd11:18:292
12427991414,0cyclictest743-21snmpd10:05:312
12427991414,0cyclictest743-21snmpd09:28:182
12427991414,0cyclictest743-21snmpd08:08:212
12427991414,0cyclictest743-21snmpd07:58:242
12427991414,0cyclictest743-21snmpd07:32:352
12427991414,0cyclictest26488-21cat08:55:152
12417991414,0cyclictest65850irq/126-lan12:30:160
12417991414,0cyclictest65850irq/126-lan11:25:140
12417991414,0cyclictest65850irq/126-lan09:20:130
12417991414,0cyclictest65850irq/126-lan07:30:140
12417991414,0cyclictest65850irq/126-lan07:10:170
12417991413,1cyclictest65850irq/126-lan10:00:150
12417991413,1cyclictest65850irq/126-lan09:45:130
12417991413,1cyclictest65850irq/126-lan09:05:200
12417991413,1cyclictest65850irq/126-lan08:10:160
12427991313,0cyclictest743-21snmpd12:39:252
12427991313,0cyclictest743-21snmpd11:22:282
12427991313,0cyclictest743-21snmpd10:46:422
12427991313,0cyclictest743-21snmpd09:35:572
12427991313,0cyclictest743-21snmpd08:51:352
12427991313,0cyclictest743-21snmpd08:01:032
12427991313,0cyclictest743-21snmpd07:36:442
12427991313,0cyclictest743-21snmpd07:10:222
12427991313,0cyclictest5421-21cat10:40:152
12417991313,0cyclictest65850irq/126-lan09:56:520
12417991312,1cyclictest65850irq/126-lan09:40:140
12417991212,0cyclictest65850irq/126-lan12:35:160
12417991212,0cyclictest65850irq/126-lan12:15:160
1241799109,1cyclictest65850irq/126-lan12:25:160
124329998,1cyclictest743-21snmpd12:10:303
124329998,1cyclictest743-21snmpd11:59:143
124329998,1cyclictest743-21snmpd11:20:283
124329998,1cyclictest743-21snmpd09:50:403
124329998,1cyclictest743-21snmpd08:31:253
124329998,1cyclictest743-21snmpd07:11:013
124329998,1cyclictest741-21lldpd07:54:593
124329996,3cyclictest743-21snmpd07:45:443
124279998,1cyclictest741-21lldpd10:27:192
124229998,1cyclictest506-21systemd-resolve07:10:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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