run_bench

#!/usr/bin/env bash

set -e

# How much seconds to wait (sleep) until performing next step.
# Required to give machine a break (avoid things like throttling).
DELAY=60
# Turns on/off allocations metrics for each benchmark.
BENCHMEM='-benchmem=true'
# Examples:
#   LIBFFI=~/gcc-7.2.0/build/x86_64-pc-linux-gnu/libffi/include/
#   LIBGO=~/gcc-7.2.0/build/x86_64-pc-linux-gnu/libgo/
#   RUNTIME=~/gcc-7.2.0/libgo/runtime/
GCCGO_INCLUDE="${LIBGO}:${LIBFFI}:${RUNTIME}"
# Run each benchmark COUNT times.
COUNT=5
# Optimizations-related flags that are passed to GCCGO.
GCC_OPT='-O3 -march=native'

mkdir -p bench
mkdir -p bench/gc/
mkdir -p bench/gccgo/

bench_gc() {
    echo "    bench_gc ${1}"
    GOROOT=`pwd` GOMAXPROCS=1 bin/go test -count="${COUNT}" -run=@ -bench=. "${BENCHMEM}" "${1}" | tee -a "bench/gc/${1/\//__}"
}

bench_gccgo() {
    echo "    bench_gccgo ${1}"
    C_INCLUDE_PATH="${GCCGO_INCLUDE}" GOPATH=`pwd` bin/go test \
          -count="${COUNT}" \
          -compiler gccgo -gccgoflags="${GCC_OPT}" \
          -run=@ -bench=. "${BENCHMEM}" "gccgo/${1}" | tee -a "bench/gccgo/${1/\//__}"
}

cooldown() {
    echo "    sleep for ${DELAY} seconds"
    sleep "${DELAY}"
}

for pkg in `cat packages.txt`; do
    bench_gc "${pkg}"
    cooldown
    bench_gccgo "${pkg}"
    cooldown
done