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2023-03-28 - 19:30

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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 
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  Intel

x86 Intel Core i7-E610 @2530 MHz, Linux 5.4.17-rt9 (Profile)

Latency plot of shadow in rack #5, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a -t3 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot4s.osadl.org (updated Tue Mar 28, 2023 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2422599171167,3cyclictest0-21swapper/207:13:502
23707213969,10sleep00-21swapper/007:05:390
2422099118113,2cyclictest0-21swapper/107:13:491
237562117103,11sleep20-21swapper/207:06:172
1455121120,0sleep00-21swapper/011:55:200
23904210692,11sleep10-21swapper/107:08:121
212502800,0sleep30-21swapper/309:20:253
67632760,0sleep00-21swapper/012:38:070
243752740,1sleep224333-21ssh10:40:212
241992740,1sleep3111-21kworker/3:109:53:153
231642730,0sleep3341rcuc/311:42:373
229202710,0sleep00-21swapper/010:55:300
304982690,0sleep3341rcuc/312:01:123
198332690,0sleep00-21swapper/010:05:300
203142670,0sleep30-21swapper/311:25:223
157542670,0sleep20-21swapper/209:33:462
157542670,0sleep20-21swapper/209:33:462
23642640,4sleep22422599cyclictest11:32:342
24211994335,8cyclictest0-21swapper/007:13:500
2421199343,19cyclictest55250irq/30-enp2s0-t12:10:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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