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2026-06-04 - 23:37

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 Thu Jun 04, 2026 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
274872970,3sleep30-21swapper/312:08:443
258882950,4sleep30-21swapper/307:47:493
258882950,4sleep30-21swapper/307:47:493
279742890,2sleep30-21swapper/307:52:563
279742890,2sleep30-21swapper/307:52:563
176462810,2chrt0-21swapper/310:17:563
176462810,2chrt0-21swapper/310:17:563
303702720,2sleep10-21swapper/112:17:581
303702720,2sleep10-21swapper/112:17:581
27812720,3sleep20-21swapper/208:12:492
27812720,3sleep20-21swapper/208:12:492
311982640,1chrt30473-21/usr/sbin/munin10:53:030
222272640,3sleep30-21swapper/307:37:523
163752580,3sleep016377-21grep08:47:560
244142570,4sleep20-21swapper/207:42:582
244142570,4sleep20-21swapper/207:42:582
143242570,2sleep014327-21tail10:08:010
143242570,2sleep014327-21tail10:08:010
29992560,1sleep3431rcuc/309:38:003
29992560,1sleep3431rcuc/309:38:003
306732530,3chrt0-21swapper/009:25:390
306732530,3chrt0-21swapper/009:25:390
306732530,3chrt0-21swapper/009:25:390
68352510,1sleep00-21swapper/012:42:540
68352510,1sleep00-21swapper/012:42:540
138942480,2sleep20-21swapper/211:33:052
138942480,2sleep20-21swapper/211:33:052
310822460,1sleep3431rcuc/309:27:553
310822460,1sleep3431rcuc/309:27:553
310822460,1sleep3431rcuc/309:27:553
249672450,3sleep30-21swapper/312:03:013
249672450,3sleep30-21swapper/312:03:013
249672450,3sleep30-21swapper/312:03:013
237292450,2sleep10-21swapper/110:33:021
237292450,2sleep10-21swapper/110:33:021
141132440,3sleep20-21swapper/210:07:582
141132440,3sleep20-21swapper/210:07:582
27272430,2sleep02859-21timerandwakeup11:03:050
27272430,2sleep02859-21timerandwakeup11:03:050
27272430,2sleep02859-21timerandwakeup11:03:050
228922430,3sleep10-21swapper/110:32:501
228922430,3sleep10-21swapper/110:32:501
228922430,3sleep10-21swapper/110:32:501
62972420,3sleep20-21swapper/211:13:032
62972420,3sleep20-21swapper/211:13:032
62972420,3sleep20-21swapper/211:13:032
210432420,4sleep20-21swapper/211:52:592
210432420,4sleep20-21swapper/211:52:592
149172410,2chrt0-21swapper/311:37:523
149172410,2chrt0-21swapper/311:37:523
267452390,2sleep126845-21processes07:48:041
267452390,2sleep126845-21processes07:48:041
244642390,3sleep30-21swapper/312:02:573
13006993832,4cyclictest1-21systemd09:22:440
13006993832,4cyclictest1-21systemd09:22:440
13006993832,4cyclictest1-21systemd09:22:440
13006993832,4cyclictest1-21systemd09:22:440
155372370,1sleep115610-21strings11:37:591
77192360,3sleep10-21swapper/111:17:561
77192360,3sleep10-21swapper/111:17:561
77192360,3sleep10-21swapper/111:17:561
13006993528,5cyclictest11548-21latency_hist10:02:440
13006993528,5cyclictest11548-21latency_hist10:02:440
13006993528,5cyclictest11548-21latency_hist10:02:440
13012993429,3cyclictest5336-21latency_hist11:12:451
13012993429,3cyclictest5336-21latency_hist11:12:451
13012993429,3cyclictest5336-21latency_hist11:12:451
13006993429,4cyclictest545-21in:imuxsock10:37:440
13006993429,4cyclictest545-21in:imuxsock10:37:440
92322330,3sleep20-21swapper/208:28:002
92322330,3sleep20-21swapper/208:28:002
13012993327,4cyclictest13004-21cyclictest10:12:571
13012993327,4cyclictest13004-21cyclictest10:12:571
1301899321,23cyclictest0-21swapper/210:25:162
1301899321,23cyclictest0-21swapper/210:25:162
13012993226,4cyclictest9086-21latency_hist11:22:591
13012993226,4cyclictest9086-21latency_hist11:22:591
13012993226,4cyclictest9086-21latency_hist11:22:591
13012993226,4cyclictest20159-21cron07:32:441
13012993226,4cyclictest20159-21cron07:32:441
13012993226,4cyclictest20159-21cron07:32:441
13012993224,6cyclictest550-21cron09:47:441
13012993224,6cyclictest550-21cron09:47:441
13006993226,4cyclictest11127-21/usr/sbin/munin11:27:560
13006993226,4cyclictest11127-21/usr/sbin/munin11:27:560
13006993226,4cyclictest11127-21/usr/sbin/munin11:27:560
1301899311,22cyclictest0-21swapper/210:17:162
1301899311,22cyclictest0-21swapper/210:17:162
1301899311,21cyclictest0-21swapper/207:28:042
1301899311,21cyclictest0-21swapper/207:28:042
1301899311,21cyclictest0-21swapper/207:28:042
1301899311,20cyclictest0-21swapper/210:51:172
1301899311,20cyclictest0-21swapper/210:51:172
13006993126,3cyclictest12630-21gltestperf08:37:580
13006993126,3cyclictest12630-21gltestperf08:37:580
13006993125,5cyclictest17879-21kernelversion10:17:580
13006993125,5cyclictest17879-21kernelversion10:17:580
13006993125,4cyclictest16166-21latency_hist08:47:550
13006993125,4cyclictest16166-21latency_hist08:47:550
13006993125,4cyclictest1346-21avahi-daemon08:23:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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