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|
build_oci_img() {
# RUN apk add --no-cache bash git
docker build "$@" - <<'EOF'
FROM ubuntu
RUN apt update && apt install -y bc curl gcc git
ENV CARGO_HOME=/usr/local
RUN curl -fsSL 'https://sh.rustup.rs' | sh -s -- -y --profile minimal
RUN /usr/local/bin/cargo install --version 0.11.3 git-delta && cp /usr/local/bin/delta /usr/local/bin/delta-0.11.3
RUN /usr/local/bin/cargo install --version 0.12.0 git-delta && cp /usr/local/bin/delta /usr/local/bin/delta-0.12.0
RUN echo "I've forgotten how to invalidate layer cache entries properly: 1" > /dev/null
RUN git clone https://github.com/th1000s/delta.git
WORKDIR delta
RUN git checkout query_ppids
RUN cargo build --release && cp ./target/release/delta /usr/local/bin/delta-dev
EOF
}
build_oci_img
docker run --rm -i "$(build_oci_img -q)" bash <<'EOF'
benchmark-command() {
local num_runs="${1:-100}"
shift
local before
before=$(($(date +%s%N) / 1000000))
printf 'Running command "%s" %d times\n' "$*" "${num_runs}"
for _ in $(seq 1 "${num_runs}"); do
eval -- "$@" > /dev/null
done
local after
after=$(($(date +%s%N) / 1000000))
local per_run
per_run=$(bc < <(printf 'scale=2; %d/%d\n' $((after - before)) "${num_runs}"))
echo "${per_run} ms per run ($((after - before)) ms total)"
}
benchmark-delta-versions() {
for v in 0.11.3 0.12.0 dev; do
echo "Benchmarking version: $v"
delta-${v} --version
benchmark-command 10 "git diff --no-index a b | delta-${v} >| delta-${v}-result"
done
}
main() {
echo aaa > a
echo aab > b
git diff --no-index a b | delta
benchmark-delta-versions
echo "Spinning up 5000 processes"
for i in {1..5000}; do
nohup sleep 30 & &> /dev/null
done
echo "Process counts:"
ps --no-headers -e -o fname | sort | uniq -c
benchmark-delta-versions
}
main
EOF
|
