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2026-03-29 - 19:32

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 Mar 29, 2026 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14146991918,1cyclictest65850irq/126-lan10:53:360
14146991818,0cyclictest65850irq/126-lan10:49:380
14146991817,1cyclictest65850irq/126-lan12:15:350
14146991817,1cyclictest65850irq/126-lan10:55:140
14146991817,1cyclictest65850irq/126-lan08:25:120
14146991717,0cyclictest65850irq/126-lan09:00:150
14146991717,0cyclictest65850irq/126-lan08:50:140
14146991717,0cyclictest65850irq/126-lan07:15:000
14146991716,1cyclictest65850irq/126-lan11:05:160
14146991716,1cyclictest65850irq/126-lan10:40:180
14146991716,1cyclictest65850irq/126-lan09:35:140
14146991716,1cyclictest65850irq/126-lan09:30:110
14146991716,1cyclictest65850irq/126-lan08:30:140
14146991716,1cyclictest65850irq/126-lan08:00:130
14146991616,0cyclictest65850irq/126-lan12:05:120
14146991616,0cyclictest65850irq/126-lan12:00:010
14146991616,0cyclictest65850irq/126-lan11:15:110
14146991615,1cyclictest65850irq/126-lan12:10:130
14146991615,1cyclictest65850irq/126-lan09:45:110
14146991615,1cyclictest65850irq/126-lan08:09:470
14146991515,0cyclictest65850irq/126-lan12:20:150
14146991515,0cyclictest65850irq/126-lan11:35:150
14146991515,0cyclictest65850irq/126-lan11:25:140
14146991515,0cyclictest65850irq/126-lan11:00:150
14146991515,0cyclictest65850irq/126-lan08:40:130
14146991515,0cyclictest65850irq/126-lan08:35:230
14146991514,1cyclictest65850irq/126-lan12:35:200
14146991514,1cyclictest65850irq/126-lan12:30:140
14146991514,1cyclictest65850irq/126-lan10:35:120
14146991514,1cyclictest65850irq/126-lan09:15:140
14146991514,1cyclictest65850irq/126-lan07:45:170
14146991514,1cyclictest65850irq/126-lan07:25:130
14146991514,1cyclictest65850irq/126-lan07:20:200
14146991514,1cyclictest65850irq/126-lan07:10:130
14146991414,0cyclictest65850irq/126-lan12:25:200
14146991414,0cyclictest65850irq/126-lan09:29:110
14146991414,0cyclictest65850irq/126-lan08:55:060
14146991414,0cyclictest65850irq/126-lan07:59:220
14146991414,0cyclictest65850irq/126-lan07:40:180
14146991413,1cyclictest65850irq/126-lan09:50:170
14146991413,1cyclictest65850irq/126-lan09:07:370
14146991313,0cyclictest65850irq/126-lan11:51:380
14146991313,0cyclictest65850irq/126-lan11:10:170
14146991313,0cyclictest65850irq/126-lan09:55:570
14146991313,0cyclictest65850irq/126-lan08:20:160
14146991312,1cyclictest65850irq/126-lan11:45:010
14146991312,1cyclictest65850irq/126-lan10:00:110
14146991312,1cyclictest65850irq/126-lan09:20:110
14146991311,2cyclictest65850irq/126-lan08:15:000
14146991212,0cyclictest65850irq/126-lan10:20:170
14146991212,0cyclictest65850irq/126-lan10:18:370
14146991212,0cyclictest65850irq/126-lan08:19:020
14146991212,0cyclictest65850irq/126-lan07:50:120
14146991212,0cyclictest65850irq/126-lan07:35:220
14146991211,1cyclictest65850irq/126-lan11:30:180
14146991211,1cyclictest65850irq/126-lan09:40:180
14146991211,1cyclictest65850irq/126-lan07:30:150
1415299118,3cyclictest743-21snmpd12:25:052
1415299118,3cyclictest743-21snmpd11:01:592
1415299118,3cyclictest743-21snmpd07:45:422
1415299110,9cyclictest27304-21cat10:19:552
14146991111,0cyclictest65850irq/126-lan11:55:140
14146991111,0cyclictest65850irq/126-lan10:10:150
14146991111,0cyclictest65850irq/126-lan08:48:370
14146991110,1cyclictest65850irq/126-lan11:40:150
14146991110,1cyclictest65850irq/126-lan11:20:110
14146991110,1cyclictest65850irq/126-lan10:05:160
1415699109,1cyclictest3073-21sendmail10:40:003
1415299108,2cyclictest741-21lldpd08:43:562
1415299102,6cyclictest21404-21sendmail_mailst07:25:172
1415299102,5cyclictest557-21NetworkManager10:41:172
1415299100,7cyclictest2863-21seq10:37:352
1415299100,6cyclictest23870-21wc08:50:212
1415299100,6cyclictest19815-21ntpq10:00:142
1414699109,1cyclictest65850irq/126-lan10:25:170
141569998,1cyclictest743-21snmpd11:59:353
141569998,1cyclictest743-21snmpd10:28:423
141569998,1cyclictest743-21snmpd08:07:573
141529998,1cyclictest743-21snmpd07:52:002
141529997,2cyclictest741-21lldpd12:36:292
141529997,2cyclictest741-21lldpd12:19:382
141529997,2cyclictest741-21lldpd09:40:002
141529996,3cyclictest743-21snmpd08:10:122
141529996,2cyclictest32695-21fschecks_time11:50:122
141529995,4cyclictest743-21snmpd09:55:582
141529990,6cyclictest5539-21seq12:01:022
141529990,6cyclictest485-21sort07:55:132
141529990,6cyclictest25852-21wc08:55:192
141529990,6cyclictest23842-21chrt11:26:372
141529990,6cyclictest17943-21chrt07:18:172
141529990,6cyclictest16201-21taskset09:52:492
141529990,6cyclictest14710-21grep11:05:222
141529990,6cyclictest14234-21taskset08:27:212
141529990,5cyclictest9375-21runrttasks10:55:102
141529990,5cyclictest9133-21ps12:10:182
141529990,5cyclictest5557-21awk09:25:182
141529990,5cyclictest28780-21wc10:20:192
141529990,5cyclictest25137-21ntpq11:30:182
141529990,5cyclictest23936-21chrt07:32:262
141529990,5cyclictest23887-21ntpq10:10:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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