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2026-04-21 - 03:54

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 Tue Apr 21, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29412991918,1cyclictest65850irq/126-lan21:50:123
29412991818,0cyclictest65850irq/126-lan23:55:123
29412991818,0cyclictest65850irq/126-lan23:00:123
29412991818,0cyclictest65850irq/126-lan20:30:213
29412991817,1cyclictest65850irq/126-lan23:10:213
29412991817,1cyclictest65850irq/126-lan23:00:003
29412991817,1cyclictest65850irq/126-lan00:35:233
29412991717,0cyclictest65850irq/126-lan20:54:513
29412991717,0cyclictest65850irq/126-lan19:30:153
29412991716,1cyclictest65850irq/126-lan22:30:133
29412991716,1cyclictest65850irq/126-lan19:55:153
29412991716,1cyclictest65850irq/126-lan19:45:123
29412991716,1cyclictest65850irq/126-lan00:30:203
29412991616,0cyclictest65850irq/126-lan22:50:183
29412991616,0cyclictest65850irq/126-lan20:25:173
29412991616,0cyclictest65850irq/126-lan19:25:163
29412991616,0cyclictest65850irq/126-lan19:15:113
29412991615,1cyclictest65850irq/126-lan23:50:213
29412991615,1cyclictest65850irq/126-lan23:40:123
29412991615,1cyclictest65850irq/126-lan23:25:143
29412991615,1cyclictest65850irq/126-lan23:20:183
29412991615,1cyclictest65850irq/126-lan22:40:213
29412991615,1cyclictest65850irq/126-lan22:05:213
29412991615,1cyclictest65850irq/126-lan21:15:173
29412991615,1cyclictest65850irq/126-lan00:10:153
29412991615,1cyclictest65850irq/126-lan00:00:203
29412991515,0cyclictest65850irq/126-lan23:45:143
29412991515,0cyclictest65850irq/126-lan23:30:183
29412991515,0cyclictest65850irq/126-lan22:00:113
29412991515,0cyclictest65850irq/126-lan20:00:153
29412991515,0cyclictest65850irq/126-lan19:40:123
29412991514,1cyclictest65850irq/126-lan22:45:183
29412991514,1cyclictest65850irq/126-lan22:35:143
29412991514,1cyclictest65850irq/126-lan22:25:183
29412991514,1cyclictest65850irq/126-lan22:20:203
29412991514,1cyclictest65850irq/126-lan22:15:133
29412991514,1cyclictest65850irq/126-lan21:30:163
29412991514,1cyclictest65850irq/126-lan20:05:223
29412991514,1cyclictest65850irq/126-lan00:05:193
29412991414,0cyclictest65850irq/126-lan20:10:153
29412991414,0cyclictest65850irq/126-lan00:25:183
29412991414,0cyclictest65850irq/126-lan00:17:063
29412991413,1cyclictest65850irq/126-lan22:10:133
29412991413,1cyclictest65850irq/126-lan21:40:173
29412991413,1cyclictest65850irq/126-lan20:55:113
29412991413,1cyclictest65850irq/126-lan19:20:163
29412991413,1cyclictest65850irq/126-lan19:10:123
29412991313,0cyclictest65850irq/126-lan21:35:123
29412991313,0cyclictest65850irq/126-lan20:45:173
29412991312,1cyclictest65850irq/126-lan21:47:523
29412991312,1cyclictest65850irq/126-lan21:23:443
29412991312,1cyclictest65850irq/126-lan20:21:133
29412991312,1cyclictest65850irq/126-lan19:50:173
29412991312,1cyclictest65850irq/126-lan00:20:143
29412991212,0cyclictest65850irq/126-lan21:10:153
29412991212,0cyclictest65850irq/126-lan19:35:133
29412991211,1cyclictest65850irq/126-lan23:15:143
29412991211,1cyclictest65850irq/126-lan20:35:143
29412991211,1cyclictest65850irq/126-lan20:15:143
29397991210,2cyclictest743-21snmpd23:12:480
29412991110,1cyclictest65850irq/126-lan21:05:173
2941299109,1cyclictest65850irq/126-lan23:35:003
29412991010,0cyclictest65850irq/126-lan21:25:303
29412991010,0cyclictest65850irq/126-lan20:40:053
294129999,0cyclictest65850irq/126-lan21:00:083
294089998,1cyclictest743-21snmpd23:28:482
294089998,1cyclictest743-21snmpd19:30:122
294089998,1cyclictest743-21snmpd19:29:542
294089998,1cyclictest1994-21dump-pmu-power23:20:012
294039998,1cyclictest743-21snmpd20:37:141
294039998,1cyclictest743-21snmpd19:25:031
293979998,1cyclictest743-21snmpd23:04:540
293979998,1cyclictest743-21snmpd21:36:540
293979996,3cyclictest743-21snmpd22:16:110
294129988,0cyclictest65850irq/126-lan23:08:053
294129987,1cyclictest928-21needreboot21:55:163
294089988,0cyclictest743-21snmpd20:47:382
294089988,0cyclictest743-21snmpd00:23:362
294089988,0cyclictest741-21lldpd22:23:542
294089987,1cyclictest743-21snmpd23:22:332
294089987,1cyclictest743-21snmpd23:06:212
294089987,1cyclictest743-21snmpd22:53:352
294089987,1cyclictest743-21snmpd21:55:582
294089987,1cyclictest743-21snmpd20:24:102
294089987,1cyclictest741-21lldpd22:02:482
294089987,1cyclictest13014-21needreboot23:45:142
294089986,2cyclictest743-21snmpd21:23:572
294089986,2cyclictest743-21snmpd20:31:502
294089986,2cyclictest743-21snmpd20:15:372
294039988,0cyclictest743-21snmpd19:14:531
294039988,0cyclictest741-21lldpd21:57:511
294039987,1cyclictest743-21snmpd23:17:391
294039987,1cyclictest743-21snmpd22:57:091
294039987,1cyclictest743-21snmpd21:05:021
294039987,1cyclictest743-21snmpd20:14:251
294039986,2cyclictest743-21snmpd20:56:261
293979988,0cyclictest743-21snmpd21:57:250
293979988,0cyclictest743-21snmpd19:11:440
293979988,0cyclictest743-21snmpd00:09:590
293979988,0cyclictest741-21lldpd23:35:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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