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2026-05-27 - 11:41

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 Wed May 27, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
489994040,0cyclictest8753-21fwupd19:27:283
482991818,0cyclictest743-21snmpd21:59:571
482991818,0cyclictest743-21snmpd19:26:351
482991818,0cyclictest65850irq/126-lan20:50:191
482991817,1cyclictest743-21snmpd23:14:221
482991817,1cyclictest65850irq/126-lan23:51:171
482991817,1cyclictest65850irq/126-lan23:25:171
482991817,1cyclictest65850irq/126-lan23:20:131
482991817,1cyclictest65850irq/126-lan21:30:201
482991817,1cyclictest65850irq/126-lan21:29:111
482991817,1cyclictest65850irq/126-lan19:35:111
482991817,1cyclictest65850irq/126-lan19:30:171
482991817,1cyclictest65850irq/126-lan00:05:191
482991717,0cyclictest743-21snmpd21:13:041
482991717,0cyclictest743-21snmpd21:00:201
482991717,0cyclictest65850irq/126-lan23:15:101
482991717,0cyclictest65850irq/126-lan23:05:201
482991717,0cyclictest65850irq/126-lan22:35:111
482991717,0cyclictest65850irq/126-lan20:00:221
482991717,0cyclictest65850irq/126-lan00:21:071
482991717,0cyclictest23834-21cat20:05:141
482991717,0cyclictest1883-21cat21:50:151
482991716,1cyclictest65850irq/126-lan22:00:121
482991716,1cyclictest65850irq/126-lan20:27:001
482991716,1cyclictest65850irq/126-lan20:14:281
482991716,1cyclictest65850irq/126-lan19:50:181
482991716,1cyclictest65850irq/126-lan19:15:111
482991716,1cyclictest65850irq/126-lan19:13:141
482991716,1cyclictest65850irq/126-lan00:13:391
482991716,1cyclictest65850irq/126-lan00:13:391
482991616,0cyclictest65850irq/126-lan23:45:191
482991616,0cyclictest65850irq/126-lan23:40:161
482991616,0cyclictest65850irq/126-lan22:45:141
482991616,0cyclictest65850irq/126-lan20:19:431
482991616,0cyclictest65850irq/126-lan00:35:201
482991615,1cyclictest65850irq/126-lan23:30:121
482991615,1cyclictest65850irq/126-lan22:40:161
482991615,1cyclictest65850irq/126-lan22:15:131
482991615,1cyclictest65850irq/126-lan20:20:201
482991515,0cyclictest743-21snmpd20:30:371
482991515,0cyclictest65850irq/126-lan23:55:191
482991515,0cyclictest65850irq/126-lan22:20:231
482991515,0cyclictest65850irq/126-lan21:37:001
482991515,0cyclictest65850irq/126-lan20:35:221
482991515,0cyclictest65850irq/126-lan19:20:111
482991514,1cyclictest65850irq/126-lan22:55:201
482991514,1cyclictest65850irq/126-lan22:10:131
482991514,1cyclictest65850irq/126-lan00:15:121
489991412,1cyclictest743-21snmpd22:54:483
482991414,0cyclictest65850irq/126-lan22:50:201
482991414,0cyclictest65850irq/126-lan22:25:221
482991414,0cyclictest65850irq/126-lan21:45:201
482991414,0cyclictest65850irq/126-lan21:15:131
482991414,0cyclictest65850irq/126-lan20:45:191
482991414,0cyclictest65850irq/126-lan20:40:111
482991414,0cyclictest65850irq/126-lan19:45:151
482991413,1cyclictest65850irq/126-lan21:41:441
482991413,1cyclictest65850irq/126-lan21:05:241
482991413,1cyclictest65850irq/126-lan00:30:091
489991313,0cyclictest23254-21cat00:00:153
482991312,1cyclictest65850irq/126-lan20:55:181
487991212,0cyclictest743-21snmpd20:52:102
487991212,0cyclictest743-21snmpd19:33:352
487991212,0cyclictest743-21snmpd00:15:202
482991212,0cyclictest65850irq/126-lan23:35:131
482991212,0cyclictest65850irq/126-lan23:00:111
482991212,0cyclictest65850irq/126-lan00:25:111
487991111,0cyclictest743-21snmpd20:31:342
482991111,0cyclictest65850irq/126-lan22:35:001
482991111,0cyclictest65850irq/126-lan22:05:151
482991111,0cyclictest65850irq/126-lan21:20:181
482991111,0cyclictest65850irq/126-lan00:00:161
482991110,1cyclictest65850irq/126-lan19:56:361
487991010,0cyclictest743-21snmpd23:55:202
487991010,0cyclictest743-21snmpd23:29:372
487991010,0cyclictest743-21snmpd23:06:452
478991010,0cyclictest10411-21cron23:30:010
4899999,0cyclictest27291-21cat00:10:153
4899999,0cyclictest27291-21cat00:10:143
4899999,0cyclictest14431-21cat22:20:173
4899998,1cyclictest743-21snmpd22:44:083
4899998,1cyclictest743-21snmpd20:45:163
4899998,1cyclictest743-21snmpd19:11:593
4899998,1cyclictest743-21snmpd00:33:183
4879999,0cyclictest743-21snmpd22:56:032
4879999,0cyclictest743-21snmpd22:28:462
4879999,0cyclictest743-21snmpd21:45:572
4879999,0cyclictest743-21snmpd21:34:182
4879999,0cyclictest743-21snmpd20:16:552
4879999,0cyclictest743-21snmpd19:45:212
4879998,1cyclictest743-21snmpd22:51:512
4879998,1cyclictest743-21snmpd00:36:252
4789998,1cyclictest743-21snmpd22:09:220
4899988,0cyclictest743-21snmpd23:27:463
4899988,0cyclictest743-21snmpd23:11:283
4899988,0cyclictest743-21snmpd22:19:263
4899988,0cyclictest743-21snmpd22:04:223
4899988,0cyclictest743-21snmpd20:54:043
4899988,0cyclictest743-21snmpd20:38:093
4899988,0cyclictest743-21snmpd20:32:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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