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2026-06-14 - 20:22

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 Jun 14, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25210991818,0cyclictest65850irq/126-lan11:04:431
25210991818,0cyclictest65850irq/126-lan07:50:191
25210991818,0cyclictest65850irq/126-lan07:15:231
25210991817,1cyclictest65850irq/126-lan11:43:001
25210991817,1cyclictest65850irq/126-lan10:55:101
25210991817,1cyclictest65850irq/126-lan10:45:121
25210991817,1cyclictest65850irq/126-lan09:06:531
25210991717,0cyclictest65850irq/126-lan11:25:201
25210991717,0cyclictest65850irq/126-lan10:40:191
25210991717,0cyclictest65850irq/126-lan09:30:181
25210991717,0cyclictest65850irq/126-lan09:25:131
25210991717,0cyclictest65850irq/126-lan08:40:151
25210991717,0cyclictest65850irq/126-lan07:12:061
25210991616,0cyclictest65850irq/126-lan07:20:161
25210991615,1cyclictest65850irq/126-lan12:30:141
25210991615,1cyclictest65850irq/126-lan11:30:181
25210991615,1cyclictest65850irq/126-lan11:10:191
25210991615,1cyclictest65850irq/126-lan11:05:041
25210991615,1cyclictest65850irq/126-lan10:05:201
25210991615,1cyclictest65850irq/126-lan08:50:131
25210991615,1cyclictest65850irq/126-lan08:05:171
25210991615,1cyclictest65850irq/126-lan07:55:211
25210991615,1cyclictest65850irq/126-lan07:37:111
25210991515,0cyclictest65850irq/126-lan12:35:131
25210991515,0cyclictest65850irq/126-lan11:50:131
25210991515,0cyclictest65850irq/126-lan10:35:131
25210991515,0cyclictest65850irq/126-lan10:30:151
25210991515,0cyclictest65850irq/126-lan10:27:331
25210991515,0cyclictest65850irq/126-lan10:20:131
25210991515,0cyclictest65850irq/126-lan08:29:311
25210991515,0cyclictest65850irq/126-lan08:20:181
25210991515,0cyclictest65850irq/126-lan07:40:131
25210991514,1cyclictest65850irq/126-lan10:10:141
25210991514,1cyclictest65850irq/126-lan09:54:481
25210991514,1cyclictest65850irq/126-lan09:12:061
25210991514,1cyclictest65850irq/126-lan08:58:491
25210991514,1cyclictest65850irq/126-lan08:45:041
25210991514,1cyclictest65850irq/126-lan07:25:121
25210991414,0cyclictest65850irq/126-lan12:17:061
25210991414,0cyclictest65850irq/126-lan12:05:081
25210991414,0cyclictest65850irq/126-lan11:20:591
25210991414,0cyclictest65850irq/126-lan09:35:131
25210991414,0cyclictest65850irq/126-lan08:35:161
25210991413,1cyclictest65850irq/126-lan10:50:131
25210991313,0cyclictest65850irq/126-lan12:25:091
25210991313,0cyclictest65850irq/126-lan11:15:151
25210991313,0cyclictest65850irq/126-lan09:55:161
25210991313,0cyclictest65850irq/126-lan09:45:121
25210991313,0cyclictest65850irq/126-lan09:40:201
25210991313,0cyclictest65850irq/126-lan09:15:121
25210991312,1cyclictest65850irq/126-lan12:20:151
25210991312,1cyclictest65850irq/126-lan08:10:121
25210991312,1cyclictest65850irq/126-lan07:30:151
25210991212,0cyclictest65850irq/126-lan11:49:401
25210991212,0cyclictest65850irq/126-lan10:15:331
25210991212,0cyclictest65850irq/126-lan09:20:171
25210991212,0cyclictest65850irq/126-lan09:00:141
25210991212,0cyclictest65850irq/126-lan07:45:111
25210991211,1cyclictest65850irq/126-lan11:35:141
2521899119,2cyclictest717-21ntpd08:54:123
25210991111,0cyclictest65850irq/126-lan12:00:121
25210991111,0cyclictest65850irq/126-lan08:30:191
25210991111,0cyclictest65850irq/126-lan08:00:181
25210991110,1cyclictest65850irq/126-lan08:15:111
2520399119,2cyclictest717-21ntpd09:35:160
25210991010,0cyclictest65850irq/126-lan11:55:051
252189998,1cyclictest743-21snmpd11:42:473
252189998,1cyclictest741-21lldpd07:29:023
252189996,3cyclictest717-21ntpd08:00:103
252139998,1cyclictest743-21snmpd08:59:382
252139998,1cyclictest741-21lldpd08:04:532
252109999,0cyclictest65850irq/126-lan10:00:141
252039998,1cyclictest743-21snmpd10:53:230
252039998,1cyclictest743-21snmpd10:23:010
252039998,1cyclictest743-21snmpd09:31:360
252039998,1cyclictest743-21snmpd08:53:080
252039998,1cyclictest741-21lldpd09:26:300
252039998,1cyclictest741-21lldpd07:17:010
252189988,0cyclictest743-21snmpd09:57:103
252189988,0cyclictest741-21lldpd08:42:513
252189987,1cyclictest743-21snmpd07:50:093
252189987,1cyclictest743-21snmpd07:47:543
252189986,2cyclictest743-21snmpd10:56:183
252189986,2cyclictest717-21ntpd12:10:053
252189986,2cyclictest717-21ntpd12:00:043
252189986,2cyclictest717-21ntpd11:59:403
252189986,2cyclictest717-21ntpd11:27:503
252189986,2cyclictest717-21ntpd11:21:543
252189986,2cyclictest717-21ntpd11:15:283
252189986,2cyclictest717-21ntpd11:10:323
252189986,2cyclictest717-21ntpd10:46:233
252189986,2cyclictest717-21ntpd10:44:373
252189986,2cyclictest717-21ntpd10:35:273
252189986,2cyclictest717-21ntpd10:27:393
252189986,2cyclictest717-21ntpd10:15:353
252189986,2cyclictest717-21ntpd09:05:083
252189986,2cyclictest717-21ntpd09:00:233
252189986,2cyclictest717-21ntpd08:55:223
252189986,2cyclictest717-21ntpd08:45:023
252189986,2cyclictest717-21ntpd08:36:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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