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2026-04-18 - 14:46

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Sat Apr 18, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65532990,3sleep20-21swapper/209:52:212
314482920,2chrt31446-21cpu12:27:120
314482920,2chrt31446-21cpu12:27:120
123572890,3sleep20-21swapper/210:07:212
123572890,3sleep20-21swapper/210:07:212
123572890,3sleep20-21swapper/210:07:212
75212880,2sleep20-21swapper/208:27:232
75212880,2sleep20-21swapper/208:27:232
29982790,2sleep30-21swapper/308:17:153
29982790,2sleep30-21swapper/308:17:153
29072750,3sleep02910-21cpuspeed12:37:130
29072750,3sleep02910-21cpuspeed12:37:130
29072750,3sleep02910-21cpuspeed12:37:130
256842690,4sleep025686-21latency_hist12:12:040
256842690,4sleep025686-21latency_hist12:12:040
279932670,3sleep30-21swapper/312:17:153
279932670,3sleep30-21swapper/312:17:153
223082670,3sleep20-21swapper/209:07:232
223082670,3sleep20-21swapper/209:07:232
297102660,3sleep30-21swapper/312:22:123
297102660,3sleep30-21swapper/312:22:123
28692640,3chrt0-21swapper/209:42:202
28692640,3chrt0-21swapper/209:42:202
28692640,3chrt0-21swapper/209:42:202
291622620,3sleep20-21swapper/209:27:132
291622620,3sleep20-21swapper/209:27:132
53612580,2sleep15364-21wc08:22:201
53612580,2sleep15364-21wc08:22:201
53612580,2sleep15364-21wc08:22:201
77682490,4sleep20-21swapper/209:57:122
77682490,4sleep20-21swapper/209:57:122
77682490,4sleep20-21swapper/209:57:122
283862490,4sleep00-21swapper/010:52:130
283862490,4sleep00-21swapper/010:52:130
217872480,3sleep30-21swapper/310:32:223
217872480,3sleep30-21swapper/310:32:223
1098399481,45cyclictest700-21192.168.115.40-manager10:59:581
1098399481,45cyclictest700-21192.168.115.40-manager10:59:581
1098399480,45cyclictest700-21192.168.115.40-manager09:13:251
1098399480,45cyclictest700-21192.168.115.40-manager09:13:251
228332460,3sleep30-21swapper/307:42:233
228332460,3sleep30-21swapper/307:42:233
152522460,3chrt0-21swapper/307:22:203
152522460,3chrt0-21swapper/307:22:203
152522460,3chrt0-21swapper/307:22:203
1098399460,44cyclictest700-21192.168.115.40-manager12:35:311
1098399460,44cyclictest700-21192.168.115.40-manager12:09:301
1098399460,44cyclictest700-21192.168.115.40-manager12:09:301
131562450,3sleep30-21swapper/311:37:143
131562450,3sleep30-21swapper/311:37:143
1098399451,42cyclictest700-21192.168.115.40-manager11:04:581
1098399451,42cyclictest700-21192.168.115.40-manager11:04:581
1098399451,42cyclictest700-21192.168.115.40-manager11:04:581
1098399450,43cyclictest700-21192.168.115.40-manager12:28:301
1098399450,43cyclictest700-21192.168.115.40-manager12:28:301
1098399450,43cyclictest700-21192.168.115.40-manager12:28:301
1098399450,43cyclictest700-21192.168.115.40-manager11:59:451
1098399450,43cyclictest700-21192.168.115.40-manager11:59:451
1098399450,43cyclictest700-21192.168.115.40-manager11:59:451
265992440,3sleep00-21swapper/012:12:210
265992440,3sleep00-21swapper/012:12:210
1098399440,30cyclictest28163-21if_wlan012:17:151
1098399440,30cyclictest28163-21if_wlan012:17:151
1098399431,40cyclictest0-21swapper/107:56:241
1098399431,40cyclictest0-21swapper/107:56:241
1098399431,27cyclictest28219-21/usr/sbin/munin10:52:161
1098399431,27cyclictest28219-21/usr/sbin/munin10:52:161
1098399430,40cyclictest700-21192.168.115.40-manager11:41:291
1098399430,40cyclictest700-21192.168.115.40-manager11:41:291
1098399430,40cyclictest700-21192.168.115.40-manager11:12:581
1098399430,40cyclictest700-21192.168.115.40-manager11:12:581
1098399430,40cyclictest700-21192.168.115.40-manager07:46:231
1098399430,40cyclictest700-21192.168.115.40-manager07:46:231
1098399421,39cyclictest0-21swapper/112:12:301
1098399421,39cyclictest0-21swapper/112:12:301
1098399421,39cyclictest0-21swapper/111:46:291
1098399421,39cyclictest0-21swapper/111:46:291
1098399421,39cyclictest0-21swapper/111:46:291
1098399420,40cyclictest700-21192.168.115.40-manager11:36:591
1098399420,40cyclictest700-21192.168.115.40-manager10:18:271
1098399420,40cyclictest700-21192.168.115.40-manager10:18:271
1098399420,40cyclictest700-21192.168.115.40-manager10:18:271
1098399420,40cyclictest700-21192.168.115.40-manager10:06:571
1098399420,40cyclictest700-21192.168.115.40-manager10:06:571
1098399420,40cyclictest700-21192.168.115.40-manager09:09:251
1098399420,40cyclictest700-21192.168.115.40-manager09:09:251
1098399420,40cyclictest700-21192.168.115.40-manager08:00:231
1098399420,40cyclictest700-21192.168.115.40-manager08:00:231
205792410,4chrt0-21swapper/210:32:012
205792410,4chrt0-21swapper/210:32:012
1098399411,38cyclictest0-21swapper/109:40:561
1098399411,38cyclictest0-21swapper/109:40:561
1098399411,38cyclictest0-21swapper/109:35:131
1098399411,38cyclictest0-21swapper/109:35:131
1098399411,38cyclictest0-21swapper/108:17:241
1098399411,38cyclictest0-21swapper/108:17:241
1098399411,37cyclictest6326-21irqstats09:52:181
1098399411,26cyclictest22314-21seq10:35:331
1098399411,26cyclictest22314-21seq10:35:331
1098399410,39cyclictest700-21192.168.115.40-manager12:24:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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