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2026-03-20 - 15:31

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 Fri Mar 20, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15123992019,1cyclictest65850irq/126-lan10:59:091
15123991818,0cyclictest65850irq/126-lan11:50:141
15123991818,0cyclictest65850irq/126-lan08:40:161
15123991817,1cyclictest65850irq/126-lan10:25:141
15123991817,1cyclictest65850irq/126-lan09:49:591
15123991817,1cyclictest65850irq/126-lan09:07:181
15123991817,1cyclictest65850irq/126-lan08:10:131
15123991817,1cyclictest65850irq/126-lan08:10:131
15123991817,1cyclictest65850irq/126-lan07:50:151
15123991817,1cyclictest65850irq/126-lan07:40:121
15123991817,1cyclictest65850irq/126-lan07:10:121
15123991717,0cyclictest65850irq/126-lan12:15:191
15123991717,0cyclictest65850irq/126-lan07:29:451
15123991716,1cyclictest65850irq/126-lan10:10:181
15123991716,1cyclictest65850irq/126-lan08:50:151
15123991716,1cyclictest65850irq/126-lan07:45:171
15123991616,0cyclictest65850irq/126-lan08:37:451
15123991616,0cyclictest65850irq/126-lan08:00:151
15123991615,1cyclictest65850irq/126-lan12:10:181
15123991615,1cyclictest65850irq/126-lan11:30:141
15123991615,1cyclictest65850irq/126-lan09:40:141
15123991615,1cyclictest65850irq/126-lan09:24:251
15123991615,1cyclictest65850irq/126-lan09:15:131
15123991615,1cyclictest65850irq/126-lan08:25:121
15123991615,1cyclictest65850irq/126-lan07:20:191
15123991515,0cyclictest65850irq/126-lan12:34:571
15123991515,0cyclictest65850irq/126-lan11:25:161
15123991515,0cyclictest65850irq/126-lan10:32:121
15123991515,0cyclictest65850irq/126-lan09:00:111
15123991515,0cyclictest65850irq/126-lan07:39:451
15123991514,1cyclictest65850irq/126-lan12:35:161
15123991514,1cyclictest65850irq/126-lan12:00:211
15123991514,1cyclictest65850irq/126-lan10:45:151
15123991514,1cyclictest65850irq/126-lan10:20:131
15123991414,0cyclictest65850irq/126-lan12:05:091
15123991414,0cyclictest65850irq/126-lan11:05:201
15123991414,0cyclictest65850irq/126-lan11:00:181
15123991414,0cyclictest65850irq/126-lan10:39:431
15123991414,0cyclictest65850irq/126-lan10:00:151
15123991414,0cyclictest65850irq/126-lan08:20:161
15123991413,1cyclictest65850irq/126-lan11:19:371
15123991413,1cyclictest65850irq/126-lan09:10:201
15123991413,1cyclictest65850irq/126-lan07:30:201
15123991313,0cyclictest65850irq/126-lan08:30:351
15123991312,1cyclictest65850irq/126-lan12:20:181
15123991312,1cyclictest65850irq/126-lan11:45:131
15123991312,1cyclictest65850irq/126-lan11:35:181
15123991312,1cyclictest65850irq/126-lan11:20:221
15123991312,1cyclictest65850irq/126-lan10:50:161
15123991312,1cyclictest65850irq/126-lan10:40:101
15123991312,1cyclictest65850irq/126-lan10:15:111
15123991312,1cyclictest65850irq/126-lan09:50:001
15123991312,1cyclictest65850irq/126-lan09:35:151
15123991312,1cyclictest65850irq/126-lan09:30:201
15123991212,0cyclictest65850irq/126-lan12:25:161
15123991212,0cyclictest65850irq/126-lan08:56:451
15123991212,0cyclictest65850irq/126-lan07:15:111
15123991111,0cyclictest65850irq/126-lan08:15:151
1512399109,1cyclictest65850irq/126-lan11:40:091
1512399109,1cyclictest65850irq/126-lan09:25:141
15123991010,0cyclictest65850irq/126-lan11:10:151
15123991010,0cyclictest65850irq/126-lan10:05:451
151319998,1cyclictest743-21snmpd09:52:513
151319998,1cyclictest743-21snmpd08:33:053
151319998,1cyclictest743-21snmpd08:18:293
151319998,1cyclictest741-21lldpd08:00:153
151289998,1cyclictest743-21snmpd11:11:392
151289998,1cyclictest743-21snmpd08:09:122
151239999,0cyclictest65850irq/126-lan11:55:121
151239998,1cyclictest65850irq/126-lan08:05:101
151189998,1cyclictest743-21snmpd10:31:410
151319988,0cyclictest743-21snmpd09:31:493
151319988,0cyclictest743-21snmpd07:54:583
151319988,0cyclictest741-21lldpd12:16:363
151319988,0cyclictest741-21lldpd11:03:113
151319987,1cyclictest743-21snmpd12:38:043
151319987,1cyclictest743-21snmpd09:25:003
151319987,1cyclictest743-21snmpd08:48:533
151319987,1cyclictest741-21lldpd10:00:483
151319986,2cyclictest743-21snmpd11:40:043
151319986,2cyclictest743-21snmpd10:51:503
151319986,2cyclictest743-21snmpd09:00:123
151319986,2cyclictest743-21snmpd08:57:113
151319984,3cyclictest743-21snmpd10:55:023
151289988,0cyclictest743-21snmpd08:27:252
151289988,0cyclictest743-21snmpd07:44:092
151289988,0cyclictest743-21snmpd07:23:392
151289988,0cyclictest741-21lldpd12:36:442
151289986,2cyclictest743-21snmpd12:22:092
151289986,2cyclictest743-21snmpd11:36:502
151289986,2cyclictest743-21snmpd11:32:472
151289986,2cyclictest743-21snmpd09:01:382
151289986,2cyclictest743-21snmpd08:55:172
151239987,1cyclictest743-21snmpd08:45:281
151239987,1cyclictest65850irq/126-lan09:55:131
151189988,0cyclictest743-21snmpd12:37:190
151189988,0cyclictest743-21snmpd09:14:440
151189988,0cyclictest743-21snmpd09:02:560
151189988,0cyclictest741-21lldpd10:19:150
151189987,1cyclictest743-21snmpd11:39:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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