Memory usage of loading glyph outlines

reproduce.sh

#!/bin/bash

export FONT_FILE=/path/to/RobotoFlex.ttf

git clone https://github.com/behdad/malloc-stats
(cd malloc-stats && make)
git clone https://github.com/harfbuzz/harfbuzz
cd harfbuzz
cp ../malloc-stats/malloc-stats.so .
meson build -Dglib=disabled -Dfreetype=enabled -Dfontations=enabled -Dbenchmark=enabled
ninja -C build
for backend in ot ft fontations; do
  for wght in '' 400 500; do
    cmd="build/perf/hb-draw-all $FONT_FILE $backend $wght"
    peak=`/usr/bin/time $cmd 2>&1 | grep maxresident | sed 's/.* \([0-9]*\)maxresident.*/\1/'`
    alloc_count=`LD_PRELOAD=$PWD/malloc-stats.so $cmd | grep '(total)' | sed 's/  */ /g' | cut -d ' ' -f 2`
    alloc_size=`LD_PRELOAD=$PWD/malloc-stats.so $cmd | grep '(total)' | sed 's/  */ /g' | cut -d ' ' -f 3 | sed 's/,//g'`
    echo "$FONT_FILE;$backend;$wght;$peak;$alloc_count;$alloc_size"; done; done
  done
done