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#!/bin/bash
#
# This is a small utility that helps run and diff benchmarks, using
# "go test -bench" and "benchstat".
#
# It's only used for development and not meant to be portable, or have a
# stable interface.
#
# Examples:
# # Run the benchmarks, recording the output IFF the tree is not dirty.
# ./tests/bench
#
# # Diff between two recorded commits.
# benchstat BASE=.bench-history/... LAST=.bench-history/last
set -e
cd "$(git rev-parse --show-toplevel)"
BDIR=".bench-history"
mkdir -p $BDIR
FNAME="$BDIR/$(date "+%Y-%m-%d-%H:%M")-$(git describe --always --dirty)"
echo file: $FNAME
go test -bench=. ./... "$@" | tee $FNAME
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