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2026-03-19 - 17:54

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 Thu Mar 19, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20098993636,0cyclictest22514-21fwupd11:06:223
20086991919,0cyclictest65850irq/126-lan12:30:201
20086991918,1cyclictest65850irq/126-lan09:15:111
20086991918,1cyclictest65850irq/126-lan08:35:121
20086991818,0cyclictest743-21snmpd12:22:061
20086991818,0cyclictest743-21snmpd11:10:341
20086991818,0cyclictest743-21snmpd10:36:571
20086991818,0cyclictest743-21snmpd10:03:261
20086991818,0cyclictest743-21snmpd08:06:191
20086991818,0cyclictest743-21snmpd07:42:121
20086991818,0cyclictest65850irq/126-lan10:30:171
20086991818,0cyclictest65850irq/126-lan08:10:141
20086991817,1cyclictest65850irq/126-lan10:28:461
20086991717,0cyclictest743-21snmpd10:51:061
20086991717,0cyclictest743-21snmpd10:45:031
20086991717,0cyclictest743-21snmpd10:20:501
20086991717,0cyclictest65850irq/126-lan12:05:101
20086991717,0cyclictest65850irq/126-lan10:15:131
20086991717,0cyclictest65850irq/126-lan09:40:081
20086991717,0cyclictest65850irq/126-lan08:55:201
20086991716,1cyclictest65850irq/126-lan12:04:451
20086991716,1cyclictest65850irq/126-lan09:30:111
20086991716,1cyclictest65850irq/126-lan08:20:461
20086991716,1cyclictest65850irq/126-lan07:20:371
20086991716,1cyclictest65850irq/126-lan07:15:151
20086991616,0cyclictest65850irq/126-lan09:55:141
20086991616,0cyclictest65850irq/126-lan09:50:001
20086991616,0cyclictest65850irq/126-lan09:20:191
20086991616,0cyclictest65850irq/126-lan09:00:121
20086991616,0cyclictest65850irq/126-lan08:00:201
20086991616,0cyclictest65850irq/126-lan07:55:191
20086991616,0cyclictest65850irq/126-lan07:50:111
20086991616,0cyclictest65850irq/126-lan07:45:121
20086991615,1cyclictest65850irq/126-lan09:27:501
20086991615,1cyclictest65850irq/126-lan08:45:121
2009499156,6cyclictest31664-21cat10:10:122
20086991515,0cyclictest65850irq/126-lan12:10:171
20086991515,0cyclictest65850irq/126-lan11:55:161
20086991515,0cyclictest65850irq/126-lan11:40:191
20086991515,0cyclictest65850irq/126-lan11:20:121
20086991515,0cyclictest65850irq/126-lan11:00:131
20086991515,0cyclictest65850irq/126-lan07:30:131
20086991514,1cyclictest65850irq/126-lan11:30:121
20086991514,1cyclictest65850irq/126-lan09:45:131
20086991514,1cyclictest65850irq/126-lan08:25:161
20086991514,1cyclictest65850irq/126-lan08:15:141
20086991514,1cyclictest65850irq/126-lan07:35:191
20086991414,0cyclictest65850irq/126-lan11:35:111
20086991414,0cyclictest65850irq/126-lan11:15:111
20086991414,0cyclictest65850irq/126-lan09:10:201
20086991414,0cyclictest65850irq/126-lan07:28:521
20086991413,1cyclictest65850irq/126-lan12:25:151
20086991413,1cyclictest65850irq/126-lan10:10:271
20086991313,0cyclictest65850irq/126-lan11:05:131
20086991313,0cyclictest65850irq/126-lan09:09:451
20086991313,0cyclictest65850irq/126-lan08:40:171
20086991313,0cyclictest65850irq/126-lan08:30:151
20086991212,0cyclictest65850irq/126-lan12:35:181
20086991212,0cyclictest65850irq/126-lan12:15:171
20086991212,0cyclictest65850irq/126-lan11:49:461
20086991212,0cyclictest65850irq/126-lan10:55:201
20086991212,0cyclictest65850irq/126-lan10:43:391
20086991212,0cyclictest65850irq/126-lan07:10:211
20086991111,0cyclictest65850irq/126-lan10:05:101
20086991111,0cyclictest65850irq/126-lan09:36:341
20086991111,0cyclictest65850irq/126-lan08:50:201
20086991110,1cyclictest65850irq/126-lan11:25:161
2009499105,5cyclictest32762-21grep07:40:132
200989998,1cyclictest522-21avahi-daemon12:05:113
200949996,3cyclictest743-21snmpd11:00:522
200949996,3cyclictest743-21snmpd07:30:112
200949996,3cyclictest4267-21fschecks_count07:50:122
200949995,3cyclictest13436-21cat08:10:142
200949991,5cyclictest23083-21unixbench_multi12:25:192
200949991,5cyclictest21157-21taskset08:29:052
200949991,5cyclictest14607-21chrt10:48:372
200949990,3cyclictest21441-21taskset09:47:432
200949990,2cyclictest310221latency_hist11:30:002
200789998,1cyclictest743-21snmpd12:34:110
200789998,1cyclictest743-21snmpd08:52:580
200789998,1cyclictest743-21snmpd08:47:230
200989988,0cyclictest743-21snmpd12:11:193
200989988,0cyclictest743-21snmpd09:09:093
200989988,0cyclictest743-21snmpd08:29:443
200989988,0cyclictest741-21lldpd11:13:473
200989987,1cyclictest743-21snmpd12:31:133
200989987,1cyclictest743-21snmpd09:37:343
200989987,1cyclictest743-21snmpd07:49:233
200989987,1cyclictest741-21lldpd11:03:553
200989986,2cyclictest743-21snmpd10:41:123
200989986,2cyclictest743-21snmpd10:10:533
200949988,0cyclictest743-21snmpd12:24:342
200949988,0cyclictest743-21snmpd08:20:402
200949988,0cyclictest741-21lldpd10:31:132
200949988,0cyclictest741-21lldpd10:04:462
200949988,0cyclictest741-21lldpd08:02:352
200949987,1cyclictest741-21lldpd10:16:522
200949987,1cyclictest741-21lldpd09:36:182
200949986,2cyclictest743-21snmpd09:15:152
200949986,2cyclictest743-21snmpd07:56:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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