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2026-08-08 - 23:14

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 Aug 08, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5095993333,0cyclictest5705-21fwupd09:49:492
5086991918,1cyclictest65850irq/126-lan09:11:110
5086991818,0cyclictest65850irq/126-lan10:25:130
5086991818,0cyclictest65850irq/126-lan09:30:220
5086991818,0cyclictest65850irq/126-lan09:30:220
5086991817,1cyclictest743-21snmpd07:43:280
5086991717,0cyclictest743-21snmpd11:33:110
5086991717,0cyclictest743-21snmpd10:32:090
5086991717,0cyclictest743-21snmpd08:15:260
5086991717,0cyclictest65850irq/126-lan12:39:360
5086991717,0cyclictest65850irq/126-lan12:10:160
5086991717,0cyclictest65850irq/126-lan11:09:390
5086991717,0cyclictest65850irq/126-lan10:41:420
5086991717,0cyclictest65850irq/126-lan09:50:160
5086991717,0cyclictest65850irq/126-lan08:40:190
5086991717,0cyclictest65850irq/126-lan08:30:190
5086991717,0cyclictest65850irq/126-lan08:25:130
5086991717,0cyclictest65850irq/126-lan07:31:370
5086991717,0cyclictest65850irq/126-lan07:25:170
5086991716,1cyclictest65850irq/126-lan12:25:190
5086991716,1cyclictest65850irq/126-lan10:45:140
5086991716,1cyclictest65850irq/126-lan09:15:120
5086991716,1cyclictest65850irq/126-lan09:00:170
5086991716,1cyclictest65850irq/126-lan07:10:150
5086991616,0cyclictest743-21snmpd11:55:330
5086991616,0cyclictest743-21snmpd11:40:120
5086991616,0cyclictest743-21snmpd11:36:270
5086991616,0cyclictest743-21snmpd11:25:380
5086991616,0cyclictest65850irq/126-lan11:15:210
5086991616,0cyclictest65850irq/126-lan10:50:220
5086991616,0cyclictest65850irq/126-lan10:35:170
5086991616,0cyclictest65850irq/126-lan08:35:130
5086991616,0cyclictest65850irq/126-lan08:00:150
5086991616,0cyclictest65850irq/126-lan07:45:170
5086991616,0cyclictest65850irq/126-lan07:15:180
5086991615,1cyclictest65850irq/126-lan11:00:140
5086991615,1cyclictest65850irq/126-lan09:25:160
5086991615,1cyclictest65850irq/126-lan08:55:120
5086991615,1cyclictest65850irq/126-lan08:50:180
5086991615,1cyclictest65850irq/126-lan08:10:170
5086991515,0cyclictest743-21snmpd10:18:270
5086991515,0cyclictest743-21snmpd10:03:270
5086991515,0cyclictest743-21snmpd09:05:400
5086991515,0cyclictest65850irq/126-lan12:30:170
5086991515,0cyclictest65850irq/126-lan12:05:150
5086991515,0cyclictest65850irq/126-lan11:50:160
5086991515,0cyclictest65850irq/126-lan10:05:160
5086991515,0cyclictest65850irq/126-lan09:45:210
5086991515,0cyclictest65850irq/126-lan09:40:110
5086991515,0cyclictest65850irq/126-lan08:45:130
5086991515,0cyclictest65850irq/126-lan07:50:120
5086991515,0cyclictest65850irq/126-lan07:35:210
5086991515,0cyclictest27831-21cat12:00:150
5086991514,1cyclictest65850irq/126-lan10:20:220
5086991514,1cyclictest65850irq/126-lan09:59:470
5086991514,1cyclictest65850irq/126-lan07:59:360
5086991514,1cyclictest65850irq/126-lan07:20:210
5086991414,0cyclictest743-21snmpd09:35:020
5086991414,0cyclictest743-21snmpd08:05:050
5086991414,0cyclictest65850irq/126-lan11:20:190
5086991414,0cyclictest65850irq/126-lan11:12:390
5086991414,0cyclictest65850irq/126-lan10:59:430
5086991413,1cyclictest65850irq/126-lan12:15:170
5086991413,1cyclictest65850irq/126-lan11:45:130
5086991312,1cyclictest65850irq/126-lan08:20:150
5086991212,0cyclictest65850irq/126-lan12:20:230
5086991212,0cyclictest65850irq/126-lan10:10:370
510099116,2cyclictest191rcu_preempt09:05:193
5086991110,1cyclictest65850irq/126-lan09:20:150
51009998,1cyclictest743-21snmpd08:21:133
51009998,1cyclictest743-21snmpd07:21:153
51009996,3cyclictest743-21snmpd11:17:383
50959998,1cyclictest743-21snmpd09:21:492
50959998,1cyclictest743-21snmpd08:51:512
50959998,1cyclictest743-21snmpd07:57:142
50959998,1cyclictest741-21lldpd10:53:012
50919998,1cyclictest743-21snmpd11:15:381
50919998,1cyclictest743-21snmpd10:07:151
50919998,1cyclictest741-21lldpd10:03:201
51009988,0cyclictest743-21snmpd09:54:583
51009988,0cyclictest741-21lldpd12:02:003
51009987,1cyclictest741-21lldpd08:11:343
51009986,2cyclictest743-21snmpd10:49:463
51009986,2cyclictest743-21snmpd09:02:103
51009986,2cyclictest743-21snmpd08:15:083
51009986,2cyclictest743-21snmpd08:06:043
51009986,2cyclictest743-21snmpd07:43:133
51009986,0cyclictest191rcu_preempt09:29:183
51009986,0cyclictest191rcu_preempt08:33:483
51009984,3cyclictest21414-21ntp_states10:25:193
50959988,0cyclictest743-21snmpd12:29:262
50959988,0cyclictest743-21snmpd10:10:242
50959988,0cyclictest743-21snmpd09:32:222
50959988,0cyclictest743-21snmpd09:32:222
50959988,0cyclictest743-21snmpd09:28:242
50959988,0cyclictest741-21lldpd10:44:292
50959988,0cyclictest741-21lldpd09:06:512
50959988,0cyclictest741-21lldpd07:52:272
50959987,1cyclictest743-21snmpd11:53:032
50959987,1cyclictest743-21snmpd08:59:452
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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