lemmy/scripts/compilation_benchmark.sh

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#!/bin/bash
set -e
times=3
duration=0
for ((i=0; i < times; i++)) ; do
echo "Starting iteration $i"
echo "cargo clean"
# to benchmark incremental compilation time, do a full build with the same compiler version first,
# and use the following clean command:
#cargo clean -p lemmy_utils
cargo clean
echo "cargo build"
start=$(date +%s.%N)
RUSTC_WRAPPER='' cargo +1.47.0 build -q
end=$(date +%s.%N)
echo "Finished iteration $i after $(bc <<< "scale=0; $end - $start") seconds"
duration=$(bc <<< "$duration + $end - $start")
done
average=$(bc <<< "scale=0; $duration / $times")
echo "Average compilation time over $times runs is $average seconds"