mirror of
https://github.com/git/git
synced 2024-08-24 18:26:02 +00:00
![Nguyễn Thái Ngọc Duy](/assets/img/avatar_default.png)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
184 lines
4.8 KiB
Bash
Executable file
184 lines
4.8 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
test_description="Test core.fsmonitor"
|
|
|
|
. ./perf-lib.sh
|
|
|
|
#
|
|
# Performance test for the fsmonitor feature which enables git to talk to a
|
|
# file system change monitor and avoid having to scan the working directory
|
|
# for new or modified files.
|
|
#
|
|
# By default, the performance test will utilize the Watchman file system
|
|
# monitor if it is installed. If Watchman is not installed, it will use a
|
|
# dummy integration script that does not report any new or modified files.
|
|
# The dummy script has very little overhead which provides optimistic results.
|
|
#
|
|
# The performance test will also use the untracked cache feature if it is
|
|
# available as fsmonitor uses it to speed up scanning for untracked files.
|
|
#
|
|
# There are 3 environment variables that can be used to alter the default
|
|
# behavior of the performance test:
|
|
#
|
|
# GIT_PERF_7519_UNTRACKED_CACHE: used to configure core.untrackedCache
|
|
# GIT_PERF_7519_SPLIT_INDEX: used to configure core.splitIndex
|
|
# GIT_PERF_7519_FSMONITOR: used to configure core.fsMonitor
|
|
#
|
|
# The big win for using fsmonitor is the elimination of the need to scan the
|
|
# working directory looking for changed and untracked files. If the file
|
|
# information is all cached in RAM, the benefits are reduced.
|
|
#
|
|
# GIT_PERF_7519_DROP_CACHE: if set, the OS caches are dropped between tests
|
|
#
|
|
|
|
test_perf_large_repo
|
|
test_checkout_worktree
|
|
|
|
test_lazy_prereq UNTRACKED_CACHE '
|
|
{ git update-index --test-untracked-cache; ret=$?; } &&
|
|
test $ret -ne 1
|
|
'
|
|
|
|
test_lazy_prereq WATCHMAN '
|
|
command -v watchman
|
|
'
|
|
|
|
if test_have_prereq WATCHMAN
|
|
then
|
|
# Convert unix style paths to escaped Windows style paths for Watchman
|
|
case "$(uname -s)" in
|
|
MSYS_NT*)
|
|
GIT_WORK_TREE="$(cygpath -aw "$PWD" | sed 's,\\,/,g')"
|
|
;;
|
|
*)
|
|
GIT_WORK_TREE="$PWD"
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
if test -n "$GIT_PERF_7519_DROP_CACHE"
|
|
then
|
|
# When using GIT_PERF_7519_DROP_CACHE, GIT_PERF_REPEAT_COUNT must be 1 to
|
|
# generate valid results. Otherwise the caching that happens for the nth
|
|
# run will negate the validity of the comparisons.
|
|
if test "$GIT_PERF_REPEAT_COUNT" -ne 1
|
|
then
|
|
echo "warning: Setting GIT_PERF_REPEAT_COUNT=1" >&2
|
|
GIT_PERF_REPEAT_COUNT=1
|
|
fi
|
|
fi
|
|
|
|
test_expect_success "setup for fsmonitor" '
|
|
# set untrackedCache depending on the environment
|
|
if test -n "$GIT_PERF_7519_UNTRACKED_CACHE"
|
|
then
|
|
git config core.untrackedCache "$GIT_PERF_7519_UNTRACKED_CACHE"
|
|
else
|
|
if test_have_prereq UNTRACKED_CACHE
|
|
then
|
|
git config core.untrackedCache true
|
|
else
|
|
git config core.untrackedCache false
|
|
fi
|
|
fi &&
|
|
|
|
# set core.splitindex depending on the environment
|
|
if test -n "$GIT_PERF_7519_SPLIT_INDEX"
|
|
then
|
|
git config core.splitIndex "$GIT_PERF_7519_SPLIT_INDEX"
|
|
fi &&
|
|
|
|
# set INTEGRATION_SCRIPT depending on the environment
|
|
if test -n "$GIT_PERF_7519_FSMONITOR"
|
|
then
|
|
INTEGRATION_SCRIPT="$GIT_PERF_7519_FSMONITOR"
|
|
else
|
|
#
|
|
# Choose integration script based on existence of Watchman.
|
|
# If Watchman exists, watch the work tree and attempt a query.
|
|
# If everything succeeds, use Watchman integration script,
|
|
# else fall back to an empty integration script.
|
|
#
|
|
mkdir .git/hooks &&
|
|
if test_have_prereq WATCHMAN
|
|
then
|
|
INTEGRATION_SCRIPT=".git/hooks/fsmonitor-watchman" &&
|
|
cp "$TEST_DIRECTORY/../templates/hooks--fsmonitor-watchman.sample" "$INTEGRATION_SCRIPT" &&
|
|
watchman watch "$GIT_WORK_TREE" &&
|
|
watchman watch-list | grep -q -F "$GIT_WORK_TREE"
|
|
else
|
|
INTEGRATION_SCRIPT=".git/hooks/fsmonitor-empty" &&
|
|
write_script "$INTEGRATION_SCRIPT"<<-\EOF
|
|
EOF
|
|
fi
|
|
fi &&
|
|
|
|
git config core.fsmonitor "$INTEGRATION_SCRIPT" &&
|
|
git update-index --fsmonitor
|
|
'
|
|
|
|
if test -n "$GIT_PERF_7519_DROP_CACHE"; then
|
|
test-tool drop-caches
|
|
fi
|
|
|
|
test_perf "status (fsmonitor=$INTEGRATION_SCRIPT)" '
|
|
git status
|
|
'
|
|
|
|
if test -n "$GIT_PERF_7519_DROP_CACHE"; then
|
|
test-tool drop-caches
|
|
fi
|
|
|
|
test_perf "status -uno (fsmonitor=$INTEGRATION_SCRIPT)" '
|
|
git status -uno
|
|
'
|
|
|
|
if test -n "$GIT_PERF_7519_DROP_CACHE"; then
|
|
test-tool drop-caches
|
|
fi
|
|
|
|
test_perf "status -uall (fsmonitor=$INTEGRATION_SCRIPT)" '
|
|
git status -uall
|
|
'
|
|
|
|
test_expect_success "setup without fsmonitor" '
|
|
unset INTEGRATION_SCRIPT &&
|
|
git config --unset core.fsmonitor &&
|
|
git update-index --no-fsmonitor
|
|
'
|
|
|
|
if test -n "$GIT_PERF_7519_DROP_CACHE"; then
|
|
test-tool drop-caches
|
|
fi
|
|
|
|
test_perf "status (fsmonitor=$INTEGRATION_SCRIPT)" '
|
|
git status
|
|
'
|
|
|
|
if test -n "$GIT_PERF_7519_DROP_CACHE"; then
|
|
test-tool drop-caches
|
|
fi
|
|
|
|
test_perf "status -uno (fsmonitor=$INTEGRATION_SCRIPT)" '
|
|
git status -uno
|
|
'
|
|
|
|
if test -n "$GIT_PERF_7519_DROP_CACHE"; then
|
|
test-tool drop-caches
|
|
fi
|
|
|
|
test_perf "status -uall (fsmonitor=$INTEGRATION_SCRIPT)" '
|
|
git status -uall
|
|
'
|
|
|
|
if test_have_prereq WATCHMAN
|
|
then
|
|
watchman watch-del "$GIT_WORK_TREE" >/dev/null 2>&1 &&
|
|
|
|
# Work around Watchman bug on Windows where it holds on to handles
|
|
# preventing the removal of the trash directory
|
|
watchman shutdown-server >/dev/null 2>&1
|
|
fi
|
|
|
|
test_done
|