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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
- 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
eog trace.log.*.png
- get ts, average-cpuload, current-cpuload, time and plot

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

@ -1,7 +1,6 @@
#!/bin/bash
# dumps a gnuplot script to stdout that plot of the given log
usage="\
Usage:$0 [--title=<title>] [--log=<log>] [--format={png,pdf,ps,svg}] [--pagesize={a3,a4}]| gnuplot"
@ -31,10 +30,15 @@ tmp=`mktemp -d`
plot_width=1600
plot_height=1200
base=`basename "$log" ".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 "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
( cd $tmp; awk -F" " '{ print $1, $3, $4, $5 >"cpu_thread."$2".dat" }' cpu_threads.dat )
grep "TRACE" $log | grep "GST_TRACER" >$tmp/trace.log
log=$tmp/trace.log
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
# 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\"";;
esac
cat <<EOF
set output '$log.cpu.$format'
set output '$base.cpu.$format'
set xlabel "Time (ns)"
set ylabel "Per-Mille"
set grid
@ -60,7 +64,7 @@ plot \\
'$tmp/cpu_proc.dat' using 1:2 with lines title 'avg cpu', \\
'' using 1:3 with lines title 'cur cpu'
set output '$log.thread.$format'
set output '$base.thread.$format'
set xlabel "Time (ns)"
set ylabel "Per-Mille"
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#'`
cat <<EOF
'$file' using 1:2 with lines title '$id avg cpu', \\
'' using 1:3 with lines title '$id cur cpu', \\
'' using 1:3 with lines title '$id cur cpu', \\
EOF
done
cat <<EOF