From: Neeraj Singh <neerajsi@xxxxxxxxxxxxx> Add basic performance tests for "git add" and "git stash" of a lot of new objects with various fsync settings. This shows the benefit of batch mode relative to full fsync. Signed-off-by: Neeraj Singh <neerajsi@xxxxxxxxxxxxx> --- t/perf/p3700-add.sh | 59 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100755 t/perf/p3700-add.sh diff --git a/t/perf/p3700-add.sh b/t/perf/p3700-add.sh new file mode 100755 index 00000000000..ef6024f9897 --- /dev/null +++ b/t/perf/p3700-add.sh @@ -0,0 +1,59 @@ +#!/bin/sh +# +# This test measures the performance of adding new files to the object database +# and index. The test was originally added to measure the effect of the +# core.fsyncMethod=batch mode, which is why we are testing different values +# of that setting explicitly and creating a lot of unique objects. + +test_description="Tests performance of adding things to the object database" + +# Fsync is normally turned off for the test suite. +GIT_TEST_FSYNC=1 +export GIT_TEST_FSYNC + +. ./perf-lib.sh + +. $TEST_DIRECTORY/lib-unique-files.sh + +test_perf_fresh_repo +test_checkout_worktree + +dir_count=10 +files_per_dir=50 +total_files=$((dir_count * files_per_dir)) + +for mode in false true batch +do + case $mode in + false) + FSYNC_CONFIG='-c core.fsync=-loose-object -c core.fsyncmethod=fsync' + ;; + true) + FSYNC_CONFIG='-c core.fsync=loose-object -c core.fsyncmethod=fsync' + ;; + batch) + FSYNC_CONFIG='-c core.fsync=loose-object -c core.fsyncmethod=batch' + ;; + esac + + test_perf "add $total_files files (object_fsyncing=$mode)" \ + --setup " + (rm -rf .git || 1) && + git init && + test_create_unique_files $dir_count $files_per_dir files_$mode + " " + git $FSYNC_CONFIG add files_$mode + " + + test_perf "stash $total_files files (object_fsyncing=$mode)" \ + --setup " + (rm -rf .git || 1) && + git init && + test_commit first && + test_create_unique_files $dir_count $files_per_dir stash_files_$mode + " " + git $FSYNC_CONFIG stash push -u -- stash_files_$mode + " +done + +test_done -- gitgitgadget
