diff options
Diffstat (limited to 't/perf')
| -rw-r--r-- | t/perf/README | 18 | ||||
| -rwxr-xr-x | t/perf/p0100-globbing.sh | 43 | ||||
| -rwxr-xr-x | t/perf/p3400-rebase.sh | 22 | ||||
| -rwxr-xr-x | t/perf/p4205-log-pretty-formats.sh | 16 | ||||
| -rwxr-xr-x | t/perf/p4220-log-grep-engines.sh | 53 | ||||
| -rwxr-xr-x | t/perf/p4221-log-grep-engines-fixed.sh | 44 | ||||
| -rwxr-xr-x | t/perf/p7820-grep-engines.sh | 56 | ||||
| -rwxr-xr-x | t/perf/p7821-grep-engines-fixed.sh | 41 | ||||
| -rw-r--r-- | t/perf/perf-lib.sh | 28 | ||||
| -rwxr-xr-x | t/perf/run | 13 |
10 files changed, 325 insertions, 9 deletions
diff --git a/t/perf/README b/t/perf/README index 49ea4349be..21321a0f36 100644 --- a/t/perf/README +++ b/t/perf/README @@ -60,7 +60,22 @@ You can set the following variables (also in your config.mak): GIT_PERF_MAKE_OPTS Options to use when automatically building a git tree for - performance testing. E.g., -j6 would be useful. + performance testing. E.g., -j6 would be useful. Passed + directly to make as "make $GIT_PERF_MAKE_OPTS". + + GIT_PERF_MAKE_COMMAND + An arbitrary command that'll be run in place of the make + command, if set the GIT_PERF_MAKE_OPTS variable is + ignored. Useful in cases where source tree changes might + require issuing a different make command to different + revisions. + + This can be (ab)used to monkeypatch or otherwise change the + tree about to be built. Note that the build directory can be + re-used for subsequent runs so the make command might get + executed multiple times on the same tree, but don't count on + any of that, that's an implementation detail that might change + in the future. GIT_PERF_REPO GIT_PERF_LARGE_REPO @@ -106,6 +121,7 @@ sources perf-lib.sh: After that you will want to use some of the following: + test_perf_fresh_repo # sets up an empty repository test_perf_default_repo # sets up a "normal" repository test_perf_large_repo # sets up a "large" repository diff --git a/t/perf/p0100-globbing.sh b/t/perf/p0100-globbing.sh new file mode 100755 index 0000000000..dd18a9ce2b --- /dev/null +++ b/t/perf/p0100-globbing.sh @@ -0,0 +1,43 @@ +#!/bin/sh + +test_description="Tests pathological globbing performance + +Shows how Git's globbing performance performs when given the sort of +pathological patterns described in at https://research.swtch.com/glob +" + +. ./perf-lib.sh + +test_globs_big='10 25 50 75 100' +test_globs_small='1 2 3 4 5 6' + +test_perf_fresh_repo + +test_expect_success 'setup' ' + for i in $(test_seq 1 100) + do + printf "a" >>refname && + for j in $(test_seq 1 $i) + do + printf "a*" >>refglob.$i + done && + echo b >>refglob.$i + done && + test_commit test $(cat refname).t "" $(cat refname).t +' + +for i in $test_globs_small +do + test_perf "refglob((a*)^nb) against tag (a^100).t; n = $i" ' + git for-each-ref "refs/tags/$(cat refglob.'$i')b" + ' +done + +for i in $test_globs_small +do + test_perf "fileglob((a*)^nb) against file (a^100).t; n = $i" ' + git ls-files "$(cat refglob.'$i')b" + ' +done + +test_done diff --git a/t/perf/p3400-rebase.sh b/t/perf/p3400-rebase.sh index b3e7d525d2..ce271ca4c1 100755 --- a/t/perf/p3400-rebase.sh +++ b/t/perf/p3400-rebase.sh @@ -5,7 +5,7 @@ test_description='Tests rebase performance' test_perf_default_repo -test_expect_success 'setup' ' +test_expect_success 'setup rebasing on top of a lot of changes' ' git checkout -f -b base && git checkout -b to-rebase && git checkout -b upstream && @@ -33,4 +33,24 @@ test_perf 'rebase on top of a lot of unrelated changes' ' git rebase --onto base HEAD^ ' +test_expect_success 'setup rebasing many changes without split-index' ' + git config core.splitIndex false && + git checkout -b upstream2 to-rebase && + git checkout -b to-rebase2 upstream +' + +test_perf 'rebase a lot of unrelated changes without split-index' ' + git rebase --onto upstream2 base && + git rebase --onto base upstream2 +' + +test_expect_success 'setup rebasing many changes with split-index' ' + git config core.splitIndex true +' + +test_perf 'rebase a lot of unrelated changes with split-index' ' + git rebase --onto upstream2 base && + git rebase --onto base upstream2 +' + test_done diff --git a/t/perf/p4205-log-pretty-formats.sh b/t/perf/p4205-log-pretty-formats.sh new file mode 100755 index 0000000000..7c26f4f337 --- /dev/null +++ b/t/perf/p4205-log-pretty-formats.sh @@ -0,0 +1,16 @@ +#!/bin/sh + +test_description='Tests the performance of various pretty format placeholders' + +. ./perf-lib.sh + +test_perf_default_repo + +for format in %H %h %T %t %P %p %h-%h-%h +do + test_perf "log with $format" " + git log --format=\"$format\" >/dev/null + " +done + +test_done diff --git a/t/perf/p4220-log-grep-engines.sh b/t/perf/p4220-log-grep-engines.sh new file mode 100755 index 0000000000..2bc47ded4d --- /dev/null +++ b/t/perf/p4220-log-grep-engines.sh @@ -0,0 +1,53 @@ +#!/bin/sh + +test_description="Comparison of git-log's --grep regex engines + +Set GIT_PERF_4220_LOG_OPTS in the environment to pass options to +git-grep. Make sure to include a leading space, +e.g. GIT_PERF_4220_LOG_OPTS=' -i'. Some options to try: + + -i + --invert-grep + -i --invert-grep +" + +. ./perf-lib.sh + +test_perf_large_repo +test_checkout_worktree + +for pattern in \ + 'how.to' \ + '^how to' \ + '[how] to' \ + '\(e.t[^ ]*\|v.ry\) rare' \ + 'm\(ú\|u\)lt.b\(æ\|y\)te' +do + for engine in basic extended perl + do + if test $engine != "basic" + then + # Poor man's basic -> extended converter. + pattern=$(echo $pattern | sed 's/\\//g') + fi + if test $engine = "perl" && ! test_have_prereq PCRE + then + prereq="PCRE" + else + prereq="" + fi + test_perf $prereq "$engine log$GIT_PERF_4220_LOG_OPTS --grep='$pattern'" " + git -c grep.patternType=$engine log --pretty=format:%h$GIT_PERF_4220_LOG_OPTS --grep='$pattern' >'out.$engine' || : + " + done + + test_expect_success "assert that all engines found the same for$GIT_PERF_4220_LOG_OPTS '$pattern'" ' + test_cmp out.basic out.extended && + if test_have_prereq PCRE + then + test_cmp out.basic out.perl + fi + ' +done + +test_done diff --git a/t/perf/p4221-log-grep-engines-fixed.sh b/t/perf/p4221-log-grep-engines-fixed.sh new file mode 100755 index 0000000000..060971265a --- /dev/null +++ b/t/perf/p4221-log-grep-engines-fixed.sh @@ -0,0 +1,44 @@ +#!/bin/sh + +test_description="Comparison of git-log's --grep regex engines with -F + +Set GIT_PERF_4221_LOG_OPTS in the environment to pass options to +git-grep. Make sure to include a leading space, +e.g. GIT_PERF_4221_LOG_OPTS=' -i'. Some options to try: + + -i + --invert-grep + -i --invert-grep +" + +. ./perf-lib.sh + +test_perf_large_repo +test_checkout_worktree + +for pattern in 'int' 'uncommon' 'æ' +do + for engine in fixed basic extended perl + do + if test $engine = "perl" && ! test_have_prereq PCRE + then + prereq="PCRE" + else + prereq="" + fi + test_perf $prereq "$engine log$GIT_PERF_4221_LOG_OPTS --grep='$pattern'" " + git -c grep.patternType=$engine log --pretty=format:%h$GIT_PERF_4221_LOG_OPTS --grep='$pattern' >'out.$engine' || : + " + done + + test_expect_success "assert that all engines found the same for$GIT_PERF_4221_LOG_OPTS '$pattern'" ' + test_cmp out.fixed out.basic && + test_cmp out.fixed out.extended && + if test_have_prereq PCRE + then + test_cmp out.fixed out.perl + fi + ' +done + +test_done diff --git a/t/perf/p7820-grep-engines.sh b/t/perf/p7820-grep-engines.sh new file mode 100755 index 0000000000..62aba19e76 --- /dev/null +++ b/t/perf/p7820-grep-engines.sh @@ -0,0 +1,56 @@ +#!/bin/sh + +test_description="Comparison of git-grep's regex engines + +Set GIT_PERF_7820_GREP_OPTS in the environment to pass options to +git-grep. Make sure to include a leading space, +e.g. GIT_PERF_7820_GREP_OPTS=' -i'. Some options to try: + + -i + -w + -v + -vi + -vw + -viw +" + +. ./perf-lib.sh + +test_perf_large_repo +test_checkout_worktree + +for pattern in \ + 'how.to' \ + '^how to' \ + '[how] to' \ + '\(e.t[^ ]*\|v.ry\) rare' \ + 'm\(ú\|u\)lt.b\(æ\|y\)te' +do + for engine in basic extended perl + do + if test $engine != "basic" + then + # Poor man's basic -> extended converter. + pattern=$(echo "$pattern" | sed 's/\\//g') + fi + if test $engine = "perl" && ! test_have_prereq PCRE + then + prereq="PCRE" + else + prereq="" + fi + test_perf $prereq "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern'" " + git -c grep.patternType=$engine grep$GIT_PERF_7820_GREP_OPTS -- '$pattern' >'out.$engine' || : + " + done + + test_expect_success "assert that all engines found the same for$GIT_PERF_7820_GREP_OPTS '$pattern'" ' + test_cmp out.basic out.extended && + if test_have_prereq PCRE + then + test_cmp out.basic out.perl + fi + ' +done + +test_done diff --git a/t/perf/p7821-grep-engines-fixed.sh b/t/perf/p7821-grep-engines-fixed.sh new file mode 100755 index 0000000000..c7ef1e198f --- /dev/null +++ b/t/perf/p7821-grep-engines-fixed.sh @@ -0,0 +1,41 @@ +#!/bin/sh + +test_description="Comparison of git-grep's regex engines with -F + +Set GIT_PERF_7821_GREP_OPTS in the environment to pass options to +git-grep. Make sure to include a leading space, +e.g. GIT_PERF_7821_GREP_OPTS=' -w'. See p7820-grep-engines.sh for more +options to try. +" + +. ./perf-lib.sh + +test_perf_large_repo +test_checkout_worktree + +for pattern in 'int' 'uncommon' 'æ' +do + for engine in fixed basic extended perl + do + if test $engine = "perl" && ! test_have_prereq PCRE + then + prereq="PCRE" + else + prereq="" + fi + test_perf $prereq "$engine grep$GIT_PERF_7821_GREP_OPTS $pattern" " + git -c grep.patternType=$engine grep$GIT_PERF_7821_GREP_OPTS $pattern >'out.$engine' || : + " + done + + test_expect_success "assert that all engines found the same for$GIT_PERF_7821_GREP_OPTS $pattern" ' + test_cmp out.fixed out.basic && + test_cmp out.fixed out.extended && + if test_have_prereq PCRE + then + test_cmp out.fixed out.perl + fi + ' +done + +test_done diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh index ab4b8b06ae..b50211b259 100644 --- a/t/perf/perf-lib.sh +++ b/t/perf/perf-lib.sh @@ -78,6 +78,10 @@ if test -z "$GIT_PERF_LARGE_REPO"; then GIT_PERF_LARGE_REPO=$TEST_DIRECTORY/.. fi +test_perf_do_repo_symlink_config_ () { + test_have_prereq SYMLINKS || git config core.symlinks false +} + test_perf_create_repo_from () { test "$#" = 2 || error "bug in the test script: not 2 parameters to test-create-repo" @@ -102,15 +106,29 @@ test_perf_create_repo_from () { ) && ( cd "$repo" && - "$MODERN_GIT" init -q && { - test_have_prereq SYMLINKS || - git config core.symlinks false - } && - mv .git/hooks .git/hooks-disabled 2>/dev/null + "$MODERN_GIT" init -q && + test_perf_do_repo_symlink_config_ && + mv .git/hooks .git/hooks-disabled 2>/dev/null && + if test -f .git/index.lock + then + # We may be copying a repo that can't run "git + # status" due to a locked index. Since we have + # a copy it's fine to remove the lock. + rm .git/index.lock + fi ) || error "failed to copy repository '$source' to '$repo'" } # call at least one of these to establish an appropriately-sized repository +test_perf_fresh_repo () { + repo="${1:-$TRASH_DIRECTORY}" + "$MODERN_GIT" init -q "$repo" && + ( + cd "$repo" && + test_perf_do_repo_symlink_config_ + ) +} + test_perf_default_repo () { test_perf_create_repo_from "${1:-$TRASH_DIRECTORY}" "$GIT_PERF_REPO" } diff --git a/t/perf/run b/t/perf/run index c788d713ae..beb4acc0e4 100755 --- a/t/perf/run +++ b/t/perf/run @@ -24,6 +24,7 @@ run_one_dir () { unpack_git_rev () { rev=$1 + echo "=== Unpacking $rev in build/$rev ===" mkdir -p build/$rev (cd "$(git rev-parse --show-cdup)" && git archive --format=tar $rev) | (cd build/$rev && tar x) @@ -37,8 +38,16 @@ build_git_rev () { cp "../../$config" "build/$rev/" fi done - (cd build/$rev && make $GIT_PERF_MAKE_OPTS) || - die "failed to build revision '$mydir'" + echo "=== Building $rev ===" + ( + cd build/$rev && + if test -n "$GIT_PERF_MAKE_COMMAND" + then + sh -c "$GIT_PERF_MAKE_COMMAND" + else + make $GIT_PERF_MAKE_OPTS + fi + ) || die "failed to build revision '$mydir'" } run_dirs_helper () { |