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osie
Commits
be47fac3
Commit
be47fac3
authored
Apr 04, 2023
by
Ivan Tyagov
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Generate latency plot.
parent
af11179f
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rt_analyzer/cyclictest_latency_plot.sh
rt_analyzer/cyclictest_latency_plot.sh
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rt_analyzer/cyclictest_latency_plot.sh
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be47fac3
#!/bin/bash
# based on https://www.osadl.org/Create-a-latency-plot-from-cyclictest-hi.bash-script-for-latency-plot.0.html
# generate latency plot for Lime2
cyclictest
-l100000000
-m
-Sp90
-i200
-h400
-q
>
output
max
=
`
grep
"Max Latencies"
output |
tr
" "
"
\n
"
|
sort
-n
|
tail
-1
|
sed
s/^0
*
//
`
grep
-v
-e
"^#"
-e
"^$"
output |
tr
" "
"
\t
"
>
histogram
cores
=
2
for
i
in
`
seq
1
$cores
`
do
column
=
`
expr
$i
+ 1
`
cut
-f1
,
$column
histogram
>
histogram
$i
done
echo
-n
-e
"set title
\"
Latency plot
\"\n\
set terminal png
\n\
set xlabel
\"
Latency (us), max
$max
us
\"\n\
set logscale y
\n\
set xrange [0:400]
\n\
set yrange [0.8:*]
\n\
set ylabel
\"
Number of latency samples
\"\n\
set output
\"
plot.png
\"\n\
plot "
>
plotcmd
for
i
in
`
seq
1
$cores
`
do
if
test
$i
!=
1
then
echo
-n
", "
>>
plotcmd
fi
cpuno
=
`
expr
$i
- 1
`
if
test
$cpuno
-lt
10
then
title
=
" CPU
$cpuno
"
else
title
=
"CPU
$cpuno
"
fi
echo
-n
"
\"
histogram
$i
\"
using 1:2 title
\"
$title
\"
with histeps"
>>
plotcmd
done
gnuplot
-persist
<plotcmd
echo
"OK"
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