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2024-04-19 - 23:24

OSADL QA Farm on Real-time of Mainline Linux

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

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.
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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackfslot4s.osadl.org (updated Fri Apr 19, 2024 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1893521180,2sleep018934-21sh11:07:000
2006021170,2chrt20057-21ntpq12:06:190
1767721150,2chrt17676-21cut10:05:530
2848521130,2chrt28460-21ssh10:26:150
2075921130,3chrt20564-21apt-get08:11:030
2242421110,3chrt22425-21sleep09:16:120
195921090,2chrt1934-21apt-get11:35:160
1870521090,3chrt18703-21ssh12:04:510
1236221090,2chrt12363-21sleep11:53:000
907821060,3chrt9079-21sleep10:50:110
2469221060,3chrt24693-21sleep08:16:510
1170521060,2chrt11703-21awk09:55:330
2632921050,3chrt26330-21sh07:17:210
1285421040,2chrt12855-21sh08:58:000
1803921030,2chrt18040-21sh09:08:220
1875521020,3chrt18758-21aten2.4_rfpower09:10:340
63532910,2sleep06351-21processes11:42:180
27892910,2sleep02790-21ssh10:38:320
17532840,2chrt1685-21ntp_states09:37:140
323292800,2sleep032331-21rm11:31:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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