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Add script to test gcc profile-guided optimizations

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Eric Biggers 2016-10-23 21:51:39 -07:00
parent 99d6e72b89
commit 0776bc94d7
1 changed files with 23 additions and 0 deletions
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tools/pgo_build.sh Executable file
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#!/bin/bash
# Try gcc profile-guided optimizations
set -eu
MAKE="make -j$(grep -c processor /proc/cpuinfo)"
DATAFILE="$HOME/data/silesia"
$MAKE benchmark > /dev/null
echo "====================="
echo "Original performance:"
echo "---------------------"
./benchmark "$@" "$DATAFILE"
$MAKE CFLAGS=-fprofile-generate LDFLAGS=-fprofile-generate benchmark > /dev/null
./benchmark "$@" "$DATAFILE" > /dev/null
$MAKE CFLAGS=-fprofile-use benchmark > /dev/null
rm -f {lib,programs}/*.gcda
echo "=========================="
echo "PGO-optimized performance:"
echo "--------------------------"
./benchmark "$@" "$DATAFILE"