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scripts/gst-plot-traces.sh: make log parsing a bit more solid

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Use grep -o to grab the log message only. This makes it work with colored log
files too. Prefilter the log to not catch tracer classes.

Update the commandline for the script in the docs.
This commit is contained in:
Stefan Sauer 2016-10-20 22:32:50 +02:00
parent ae608845ca
commit 06ce912ba6
2 changed files with 12 additions and 8 deletions
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2
docs/design/part-tracing.txt
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@ -352,7 +352,7 @@ GST_DEBUG="GST_TRACER:7" GST_TRACERS="stats;rusage" GST_DEBUG_FILE=trace.log gst
gst-stats-1.0 trace.log gst-stats-1.0 trace.log
- print some pipeline stats on exit - print some pipeline stats on exit
GST_DEBUG="GST_TRACER:7" GST_TRACERS="stats;rusage" GST_DEBUG_FILE=trace.log /usr/bin/gst-play-1.0 --interactive $HOME/Videos/movie.mp4 GST_DEBUG="GST_TRACER:7" GST_TRACERS="stats;rusage" GST_DEBUG_FILE=trace.log /usr/bin/gst-play-1.0 $HOME/Videos/movie.mp4
./scripts/gst-plot-traces.sh --format=png | gnuplot ./scripts/gst-plot-traces.sh --format=png | gnuplot
eog trace.log.*.png eog trace.log.*.png
- get ts, average-cpuload, current-cpuload, time and plot - get ts, average-cpuload, current-cpuload, time and plot

18
scripts/gst-plot-traces.sh
View file

@ -1,7 +1,6 @@
#!/bin/bash #!/bin/bash
# dumps a gnuplot script to stdout that plot of the given log # dumps a gnuplot script to stdout that plot of the given log
usage="\ usage="\
Usage:$0 [--title=<title>] [--log=<log>] [--format={png,pdf,ps,svg}] [--pagesize={a3,a4}]| gnuplot" Usage:$0 [--title=<title>] [--log=<log>] [--format={png,pdf,ps,svg}] [--pagesize={a3,a4}]| gnuplot"
@ -31,10 +30,15 @@ tmp=`mktemp -d`
plot_width=1600 plot_width=1600
plot_height=1200 plot_height=1200
base=`basename "$log" ".log"`
# filter log # filter log
grep "proc-rusage," $log | cut -c154- | sed -e 's#ts=(guint64)##' -e 's#[a-z]*-cpuload=(uint)##g' -e 's#time=(guint64)##' -e 's#;##' -e 's#, # #g' | sort -n >$tmp/cpu_proc.dat grep "TRACE" $log | grep "GST_TRACER" >$tmp/trace.log
grep "thread-rusage," $log | cut -c156- | sed -e 's#ts=(guint64)##' -e 's#thread-id=(uint)##g' -e 's#[a-z]*-cpuload=(uint)##g' -e 's#time=(guint64)##' -e 's#;##' -e 's#, # #g' | sort -n >$tmp/cpu_threads.dat log=$tmp/trace.log
( cd $tmp; awk -F" " '{ print $1, $3, $4, $5 >"cpu_thread."$2".dat" }' cpu_threads.dat )
grep -o "proc-rusage,.*" $log | cut -c14- | sed -e 's#process-id=(guint64)[0-9][0-9]*, ##' -e 's#ts=(guint64)##' -e 's#[a-z]*-cpuload=(uint)##g' -e 's#time=(guint64)##' -e 's#;##' -e 's#, # #g' >$tmp/cpu_proc.dat
grep -o "thread-rusage,.*" $log | cut -c35- | sed -e 's#ts=(guint64)##' -e 's#thread-id=(uint)##g' -e 's#[a-z]*-cpuload=(uint)##g' -e 's#time=(guint64)##' -e 's#;##' -e 's#, # #g' >$tmp/cpu_threads.dat
( cd $tmp; awk -F" " '{ print $2, $3, $4, $5 >"cpu_thread."$1".dat" }' cpu_threads.dat )
# configure output # configure output
# http://en.wikipedia.org/wiki/Paper_size # http://en.wikipedia.org/wiki/Paper_size
@ -52,7 +56,7 @@ case $format in
svg) echo "set term svg size $plot_width,$plot_height font \"Sans,7\"";; svg) echo "set term svg size $plot_width,$plot_height font \"Sans,7\"";;
esac esac
cat <<EOF cat <<EOF
set output '$log.cpu.$format' set output '$base.cpu.$format'
set xlabel "Time (ns)" set xlabel "Time (ns)"
set ylabel "Per-Mille" set ylabel "Per-Mille"
set grid set grid
@ -60,7 +64,7 @@ plot \\
'$tmp/cpu_proc.dat' using 1:2 with lines title 'avg cpu', \\ '$tmp/cpu_proc.dat' using 1:2 with lines title 'avg cpu', \\
'' using 1:3 with lines title 'cur cpu' '' using 1:3 with lines title 'cur cpu'
set output '$log.thread.$format' set output '$base.thread.$format'
set xlabel "Time (ns)" set xlabel "Time (ns)"
set ylabel "Per-Mille" set ylabel "Per-Mille"
set grid set grid
@ -74,7 +78,7 @@ for file in $tmp/cpu_thread.*.dat ; do
id=`echo $file | sed 's#.*cpu_thread.\([0-9]*\).dat#\1#'` id=`echo $file | sed 's#.*cpu_thread.\([0-9]*\).dat#\1#'`
cat <<EOF cat <<EOF
'$file' using 1:2 with lines title '$id avg cpu', \\ '$file' using 1:2 with lines title '$id avg cpu', \\
'' using 1:3 with lines title '$id cur cpu', \\ '' using 1:3 with lines title '$id cur cpu', \\
EOF EOF
done done
cat <<EOF cat <<EOF