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#!/bin/sh
test_description="Tests index-pack performance"
. ./perf-lib.sh
test_perf_large_repo
test_expect_success 'repack' '
git repack -ad &&
PACK=$(ls .git/objects/pack/*.pack | head -n1) &&
test -f "$PACK" &&
export PACK
'
# Rather than counting up and doubling each time, count down from the endpoint,
# halving each time. That ensures that our final test uses as many threads as
# CPUs, even if it isn't a power of 2.
test_expect_success 'set up thread-counting tests' '
t=$(test-tool online-cpus) &&
threads= &&
while test $t -gt 0
do
threads="$t $threads"
t=$((t / 2))
done
'
test_perf PERF_EXTRA 'index-pack 0 threads' '
rm -rf repo.git &&
git init --bare repo.git &&
GIT_DIR=repo.git git index-pack --threads=1 --stdin < $PACK
'
for t in $threads
do
THREADS=$t
export THREADS
test_perf PERF_EXTRA "index-pack $t threads" '
rm -rf repo.git &&
git init --bare repo.git &&
GIT_DIR=repo.git GIT_FORCE_THREADS=1 \
git index-pack --threads=$THREADS --stdin <$PACK
'
done
test_perf 'index-pack default number of threads' '
rm -rf repo.git &&
git init --bare repo.git &&
GIT_DIR=repo.git git index-pack --stdin < $PACK
'
test_done
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