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2025-04-03 - 11:20

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, 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.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack4slot6s.osadl.org (updated Thu Apr 03, 2025 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2018522530,2sleep020186-21mailstats19:40:270
1925022530,2sleep019253-21latency_hist00:10:020
394222430,2sleep03944-21latency_hist20:45:010
2479722430,2sleep024799-21latency_hist20:00:020
1618621540,4chrt15998-21/usr/sbin/munin23:55:190
820021400,4chrt8199-21/usr/sbin/munin23:20:120
1854221340,3sleep018541-21interrupts19:35:160
2158121320,3chrt21582-21cat19:45:290
1055121180,2sleep010552-21readlink23:30:250
238121000,4sleep02239-21/usr/sbin/munin22:55:150
215362980,4sleep021550-21awk21:55:290
273592960,2sleep027358-21switchtime22:20:300
312042880,4sleep031205-21sshd22:39:300
301432870,4sleep030167-21/usr/sbin/munin20:20:150
131202850,3sleep013156-21wc19:15:010
1103027718,32sleep011113-21/usr/sbin/munin19:05:290
71182740,2sleep07119-21switchtime20:55:280
230962720,2sleep023097-21ls00:25:010
54842630,3sleep05485-21cut23:10:010
1186799618,18cyclictest7965-21df21:00:120
11867996123,14cyclictest269-21runrttasks00:30:240
11867996117,15cyclictest472-1kworker/0:1H20:12:310
11867996011,18cyclictest16707-21rs:main0
1186799599,17cyclictest25399-21timerandwakeup20:00:280
11867995934,15cyclictest15147-21/usr/sbin/munin23:50:220
11867995923,26cyclictest31499-21/usr/sbin/munin22:40:150
1186799589,17cyclictest16707-21rs:main0
1186799589,17cyclictest15650-21timerwakeupswit21:30:280
1186799588,16cyclictest3554-21/usr/sbin/munin23:00:300
1186799587,18cyclictest25648-21/usr/sbin/munin00:35:290
11867995833,16cyclictest31414-21/usr/sbin/munin20:25:130
11867995815,16cyclictest20891-21latency_hist21:55:010
11867995811,18cyclictest26715-21munin-run22:20:010
11867995810,18cyclictest7095-21ntpq23:15:180
1186799577,18cyclictest22284-21/usr/sbin/munin19:50:290
11867995734,16cyclictest17022-21latency_hist19:30:010
11867995734,15cyclictest17419-21/usr/sbin/munin00:00:170
11867995732,16cyclictest4644-21/usr/sbin/munin20:45:310
11867995732,16cyclictest16471-21/usr/sbin/munin21:35:160
1186799569,19cyclictest108-21systemd-journal20:39:590
1186799569,18cyclictest5751-21awk20:50:300
1186799569,16cyclictest11584-21ls23:35:170
1186799568,17cyclictest9686-21/usr/sbin/munin21:05:290
1186799568,16cyclictest28763-21/usr/sbin/munin20:15:220
11867995633,15cyclictest19881-21/usr/sbin/munin00:10:250
11867995631,16cyclictest1244-21runrttasks22:50:180
11867995630,17cyclictest326-21irqstats20:30:210
11867995627,22cyclictest18137-21runrttasks19:33:520
1186799559,16cyclictest269-21runrttasks22:07:110
1186799556,15cyclictest20588-21/usr/sbin/munin00:15:320
11867995532,14cyclictest12274-21/usr/sbin/munin21:15:270
11867995531,16cyclictest24370-21/usr/sbin/munin22:10:110
11867995531,15cyclictest29080-21/usr/sbin/munin22:30:160
11867995510,16cyclictest15150-21/usr/sbin/munin19:20:300
1186799548,15cyclictest13028-21chrt23:40:250
1186799547,18cyclictest13100-21/usr/sbin/munin21:20:220
1186799547,14cyclictest28604-21seq22:29:090
1186799547,14cyclictest22266-21/usr/sbin/munin22:00:180
11867995430,14cyclictest557-21runrttasks22:47:450
11867995411,17cyclictest5683-21irqstats23:10:130
1186799538,19cyclictest14966-21awk21:30:000
1186799538,17cyclictest17680-21/usr/sbin/munin21:40:270
1186799537,16cyclictest26158-21/usr/sbin/munin20:05:210
11867995323,20cyclictest23459-21sshd00:27:300
1186799528,16cyclictest10012-21munin-plugin-st23:30:000
11867995230,14cyclictest19072-21runrttasks21:46:100
11867995224,15cyclictest13873-21cron23:45:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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