bench_plot: Added line-producing plot functions

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>

diff --git a/benchmarks/bench_plot.sh b/benchmarks/bench_plot.sh
index 08a13e6..623ca6c 100755 (executable)
--- a/benchmarks/bench_plot.sh
+++ b/benchmarks/bench_plot.sh
@@ -110,6 +110,57 @@ if test -n "$DISPLAY"; then
 fi
 }
 
+# Create a new $res to be used in the next plot
+#
+# $1 = resfile
+# $2 = title
+# $3 = description
+function prepare_res_lines()
+{
+       echo
+       echo "# [$2] $3 #"
+       if test -n "$html"; then
+               echo >>"$html" "<p>[$2] $3 <a href=\"$1\">data</a></p>"
+       fi
+       res=$1
+       if [ "$plots" = "" ]; then
+               plots="plot '$1' using 4 with lines ti '$2'"
+       else
+               plots="$plots, '$1' using 4 with lines ti '$2'"
+       fi
+       if [ "$dry_run" = "true" ]; then return; fi
+       echo "# [$2] $3 ; count=$count" > "$res"
+       echo "# first min max avg title" >> "$res"
+}
+
+# Plot the last $res as a line graph
+# $1: plot file (eg toto.gnu)
+function plot_lines()
+{
+       cat >"$1" <<END
+set auto x;
+set yrange [0:];
+set xtic nomirror rotate by -45 scale 0 font ',8';
+set title "$1 ; avg. on $count-1 runs"
+set ylabel "time (s)"
+$plots
+END
+       plots=
+
+       if test -n "$html"; then
+               echo "# gnuplot $1"
+               bn=`basename "$1" .gnu`
+               gnuplot -e "set term png; set output \"$bn.png\"" "$1"
+               echo gnuplot -e "set term png; set output \"$bn.png\"" "$1"
+
+               echo >>"$html" "<img src=\"$bn.png\"/>"
+       fi
+       if test -n "$DISPLAY"; then
+               echo "# gnuplot -p $1"
+               gnuplot -p "$1"
+       fi
+}
+
 ## GLOBAL VARIABLES ##
 
 # The current $res (set by prepare_res, used by bench_command)