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2024-12-11 - 16:08

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 the 20 highest latencies:
System rack4slot6s.osadl.org (updated Wed Dec 11, 2024 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2414021410,2sleep024139-21swap12:30:260
1732121300,4chrt17323-21if_err_eth012:05:160
2161421290,3chrt21613-21/usr/sbin/munin10:15:240
2286021150,2sleep022858-21ntpq10:20:220
5850991149,90cyclictest25622-21chrt12:36:010
58509911429,72cyclictest12502-21grep09:40:200
5850991139,90cyclictest586-21/usr/sbin/munin08:55:220
5850991136,92cyclictest11363-21vmstat11:40:300
58509911326,74cyclictest31912-21/usr/sbin/munin10:55:240
1865721130,2sleep018660-21sort12:10:160
5850991127,88cyclictest3514-21/usr/sbin/munin09:05:250
5850991119,90cyclictest20266-21ntp_states10:10:210
5850991117,89cyclictest10412-21timerwakeupswit07:25:340
5850991109,88cyclictest9510-21df11:35:130
5850991109,87cyclictest27041-21seq08:30:250
5850991108,89cyclictest26706-21ntp_states10:35:210
5850991108,88cyclictest108-21systemd-journal07:59:210
58509911028,72cyclictest25223-21latency_hist08:25:020
5850991099,88cyclictest19162-21runrttasks08:00:240
5850991098,88cyclictest8735-21cat11:30:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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