Fossil SCM
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#!/bin/sh |
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# Throw-away cache size test scripts by Dan Shearer, Sep 2026 |
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# Needs ../fossil built from the cache-speedups branch |
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set -eu |
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unset FOSSIL_SQLCACHE |
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repository=${1:?usage: $0 repository.fossil} |
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copy=${TMPDIR:-/tmp}/${repository##*/} |
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mirror=$PWD/git-export-mirror |
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trap 'rm -rf "$mirror" "$copy"' EXIT HUP INT TERM |
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printf 'command\trepetition\tcache_n\telapsed\tuser\tsystem\tmax_rss_kb\n' |
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cache_values=${CACHE_VALUES:-"500 1000 1500 2000 3000 5000"} |
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if [ -n "${GIT_LIMIT:-}" ]; then |
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set -- --limit "$GIT_LIMIT" |
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else |
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set -- |
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fi |
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for repetition in $(seq 1 "${REPEATS:-3}"); do |
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for n in $(printf '%s\n' $cache_values | shuf); do |
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export FOSSIL_CACHE_N=$n FOSSIL_CACHE_SZ=${CACHE_SZ:-1000000000} |
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rm -rf "$mirror" |
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git init -q "$mirror" |
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cp "$repository" "$copy" |
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/usr/bin/time -f "git-export\t$repetition\t$n\t%e\t%U\t%S\t%M" \ |
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../fossil git export "$mirror" -R "$copy" "$@" -q -q |
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done |
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done |
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