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2026-05-25 - 08:56

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 Mon May 25, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14518992019,1cyclictest65850irq/126-lan19:25:121
14518991818,0cyclictest743-21snmpd20:20:191
14518991818,0cyclictest65850irq/126-lan21:34:171
14518991817,1cyclictest65850irq/126-lan21:15:181
14518991817,1cyclictest65850irq/126-lan20:45:131
14518991717,0cyclictest9851-21cat20:15:151
14518991717,0cyclictest743-21snmpd21:00:181
14518991717,0cyclictest743-21snmpd20:56:531
14518991717,0cyclictest65850irq/126-lan22:40:411
14518991717,0cyclictest65850irq/126-lan21:05:021
14518991717,0cyclictest65850irq/126-lan20:30:211
14518991717,0cyclictest65850irq/126-lan19:45:241
14518991717,0cyclictest65850irq/126-lan19:30:201
14518991716,1cyclictest65850irq/126-lan22:55:151
14518991716,1cyclictest65850irq/126-lan22:05:131
14518991716,1cyclictest65850irq/126-lan21:40:161
14518991716,1cyclictest65850irq/126-lan21:40:161
14518991616,0cyclictest65850irq/126-lan23:34:361
14518991616,0cyclictest65850irq/126-lan22:50:131
14518991616,0cyclictest65850irq/126-lan22:35:201
14518991616,0cyclictest65850irq/126-lan21:35:151
14518991616,0cyclictest65850irq/126-lan21:35:151
14518991616,0cyclictest65850irq/126-lan20:25:181
14518991616,0cyclictest65850irq/126-lan19:13:261
14518991616,0cyclictest65850irq/126-lan00:17:101
14518991615,1cyclictest65850irq/126-lan23:45:171
14518991615,1cyclictest65850irq/126-lan23:35:131
14518991615,1cyclictest65850irq/126-lan22:17:261
14518991615,1cyclictest65850irq/126-lan22:15:011
14518991615,1cyclictest65850irq/126-lan22:00:111
14518991615,1cyclictest65850irq/126-lan00:25:151
14518991515,0cyclictest65850irq/126-lan23:20:131
14518991515,0cyclictest65850irq/126-lan23:10:201
14518991515,0cyclictest65850irq/126-lan22:25:181
14518991515,0cyclictest65850irq/126-lan20:40:141
14518991515,0cyclictest65850irq/126-lan19:15:171
14518991515,0cyclictest65850irq/126-lan00:05:201
14518991515,0cyclictest65850irq/126-lan00:01:061
14518991514,1cyclictest65850irq/126-lan22:45:141
14518991514,1cyclictest65850irq/126-lan19:40:131
14518991414,0cyclictest743-21snmpd19:24:231
14518991414,0cyclictest65850irq/126-lan23:17:381
14518991414,0cyclictest65850irq/126-lan22:32:541
14518991414,0cyclictest65850irq/126-lan21:59:481
14518991414,0cyclictest65850irq/126-lan21:20:111
14518991414,0cyclictest65850irq/126-lan20:40:001
14518991414,0cyclictest65850irq/126-lan19:55:591
14518991414,0cyclictest65850irq/126-lan00:30:141
14518991414,0cyclictest65850irq/126-lan00:20:191
14518991414,0cyclictest29263-21cat22:20:141
14518991413,1cyclictest65850irq/126-lan23:40:471
14518991413,1cyclictest65850irq/126-lan00:10:461
14518991313,0cyclictest65850irq/126-lan23:57:161
14518991313,0cyclictest65850irq/126-lan20:50:131
14518991313,0cyclictest65850irq/126-lan20:05:131
14518991313,0cyclictest65850irq/126-lan20:00:121
14518991313,0cyclictest65850irq/126-lan00:38:081
14518991312,1cyclictest65850irq/126-lan21:47:211
14518991212,0cyclictest65850irq/126-lan23:09:531
14518991212,0cyclictest65850irq/126-lan21:50:021
14518991211,1cyclictest65850irq/126-lan23:25:141
14518991211,1cyclictest65850irq/126-lan21:25:161
14518991111,0cyclictest65850irq/126-lan23:50:171
14518991111,0cyclictest65850irq/126-lan19:53:161
14518991111,0cyclictest65850irq/126-lan19:35:151
1451899109,1cyclictest65850irq/126-lan20:10:121
145279998,1cyclictest743-21snmpd22:54:463
145279998,1cyclictest743-21snmpd00:16:023
145279998,1cyclictest741-21lldpd19:34:013
145239998,1cyclictest743-21snmpd23:14:252
145239998,1cyclictest741-21lldpd20:01:122
145189999,0cyclictest65850irq/126-lan21:10:151
145189998,1cyclictest65850irq/126-lan23:00:131
145139998,1cyclictest743-21snmpd22:52:000
145139998,1cyclictest743-21snmpd20:31:350
145139998,1cyclictest743-21snmpd20:17:320
145139998,1cyclictest506-21systemd-resolve21:22:420
145279988,0cyclictest743-21snmpd22:14:523
145279988,0cyclictest743-21snmpd19:49:543
145279988,0cyclictest741-21lldpd23:12:003
145279988,0cyclictest741-21lldpd22:26:093
145279988,0cyclictest741-21lldpd21:14:343
145279988,0cyclictest741-21lldpd20:56:123
145279988,0cyclictest741-21lldpd20:49:593
145279988,0cyclictest741-21lldpd20:21:503
145279987,1cyclictest743-21snmpd20:54:323
145279987,1cyclictest506-21systemd-resolve00:14:273
145279987,1cyclictest1564-21fschecks_time19:55:143
145279986,2cyclictest743-21snmpd22:15:343
145279986,2cyclictest743-21snmpd21:53:293
145279986,2cyclictest743-21snmpd21:47:573
145279986,2cyclictest743-21snmpd21:31:523
145279986,2cyclictest743-21snmpd20:27:173
145279986,2cyclictest743-21snmpd19:19:353
145279986,2cyclictest743-21snmpd19:14:593
145279986,2cyclictest19956-21cat20:40:153
145239988,0cyclictest743-21snmpd23:36:142
145239988,0cyclictest743-21snmpd20:14:232
145239988,0cyclictest743-21snmpd00:26:412
145239988,0cyclictest741-21lldpd21:07:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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