Andrew's git - gitweb.git/blob - t/perf/perf-lib.sh

   1#!/bin/sh
   2#
   3# Copyright (c) 2011 Thomas Rast
   4#
   5# This program is free software: you can redistribute it and/or modify
   6# it under the terms of the GNU General Public License as published by
   7# the Free Software Foundation, either version 2 of the License, or
   8# (at your option) any later version.
   9#
  10# This program is distributed in the hope that it will be useful,
  11# but WITHOUT ANY WARRANTY; without even the implied warranty of
  12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13# GNU General Public License for more details.
  14#
  15# You should have received a copy of the GNU General Public License
  16# along with this program.  If not, see http://www.gnu.org/licenses/ .
  17
  18# do the --tee work early; it otherwise confuses our careful
  19# GIT_BUILD_DIR mangling
  20case "$GIT_TEST_TEE_STARTED, $* " in
  21done,*)
  22        # do not redirect again
  23        ;;
  24*' --tee '*|*' --va'*)
  25        mkdir -p test-results
  26        BASE=test-results/$(basename "$0" .sh)
  27        (GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
  28         echo $? > $BASE.exit) | tee $BASE.out
  29        test "$(cat $BASE.exit)" = 0
  30        exit
  31        ;;
  32esac
  33
  34TEST_DIRECTORY=$(pwd)/..
  35TEST_OUTPUT_DIRECTORY=$(pwd)
  36if test -z "$GIT_TEST_INSTALLED"; then
  37        perf_results_prefix=
  38else
  39        perf_results_prefix=$(printf "%s" "${GIT_TEST_INSTALLED%/bin-wrappers}" | tr -c "[a-zA-Z0-9]" "[_*]")"."
  40        # make the tested dir absolute
  41        GIT_TEST_INSTALLED=$(cd "$GIT_TEST_INSTALLED" && pwd)
  42fi
  43
  44TEST_NO_CREATE_REPO=t
  45
  46. ../test-lib.sh
  47
  48perf_results_dir=$TEST_OUTPUT_DIRECTORY/test-results
  49mkdir -p "$perf_results_dir"
  50rm -f "$perf_results_dir"/$(basename "$0" .sh).subtests
  51
  52if test -z "$GIT_PERF_REPEAT_COUNT"; then
  53        GIT_PERF_REPEAT_COUNT=3
  54fi
  55die_if_build_dir_not_repo () {
  56        if ! ( cd "$TEST_DIRECTORY/.." &&
  57                    git rev-parse --build-dir >/dev/null 2>&1 ); then
  58                error "No $1 defined, and your build directory is not a repo"
  59        fi
  60}
  61
  62if test -z "$GIT_PERF_REPO"; then
  63        die_if_build_dir_not_repo '$GIT_PERF_REPO'
  64        GIT_PERF_REPO=$TEST_DIRECTORY/..
  65fi
  66if test -z "$GIT_PERF_LARGE_REPO"; then
  67        die_if_build_dir_not_repo '$GIT_PERF_LARGE_REPO'
  68        GIT_PERF_LARGE_REPO=$TEST_DIRECTORY/..
  69fi
  70
  71test_perf_create_repo_from () {
  72        test "$#" = 2 ||
  73        error "bug in the test script: not 2 parameters to test-create-repo"
  74        repo="$1"
  75        source="$2"
  76        source_git=$source/$(cd "$source" && git rev-parse --git-dir)
  77        mkdir -p "$repo/.git"
  78        (
  79                cd "$repo/.git" &&
  80                { cp -Rl "$source_git/objects" . 2>/dev/null ||
  81                        cp -R "$source_git/objects" .; } &&
  82                for stuff in "$source_git"/*; do
  83                        case "$stuff" in
  84                                */objects|*/hooks|*/config)
  85                                        ;;
  86                                *)
  87                                        cp -R "$stuff" . || break
  88                                        ;;
  89                        esac
  90                done &&
  91                cd .. &&
  92                git init -q &&
  93                mv .git/hooks .git/hooks-disabled 2>/dev/null
  94        ) || error "failed to copy repository '$source' to '$repo'"
  95}
  96
  97# call at least one of these to establish an appropriately-sized repository
  98test_perf_default_repo () {
  99        test_perf_create_repo_from "${1:-$TRASH_DIRECTORY}" "$GIT_PERF_REPO"
 100}
 101test_perf_large_repo () {
 102        if test "$GIT_PERF_LARGE_REPO" = "$GIT_BUILD_DIR"; then
 103                echo "warning: \$GIT_PERF_LARGE_REPO is \$GIT_BUILD_DIR." >&2
 104                echo "warning: This will work, but may not be a sufficiently large repo" >&2
 105                echo "warning: for representative measurements." >&2
 106        fi
 107        test_perf_create_repo_from "${1:-$TRASH_DIRECTORY}" "$GIT_PERF_LARGE_REPO"
 108}
 109test_checkout_worktree () {
 110        git checkout-index -u -a ||
 111        error "git checkout-index failed"
 112}
 113
 114# Performance tests should never fail.  If they do, stop immediately
 115immediate=t
 116
 117test_run_perf_ () {
 118        test_cleanup=:
 119        test_export_="test_cleanup"
 120        export test_cleanup test_export_
 121        /usr/bin/time -f "%E %U %S" -o test_time.$i "$SHELL" -c '
 122. '"$TEST_DIRECTORY"/../test-lib-functions.sh'
 123test_export () {
 124        [ $# != 0 ] || return 0
 125        test_export_="$test_export_\\|$1"
 126        shift
 127        test_export "$@"
 128}
 129'"$1"'
 130ret=$?
 131set | sed -n "s'"/'/'\\\\''/g"';s/^\\($test_export_\\)/export '"'&'"'/p" >test_vars
 132exit $ret' >&3 2>&4
 133        eval_ret=$?
 134
 135        if test $eval_ret = 0 || test -n "$expecting_failure"
 136        then
 137                test_eval_ "$test_cleanup"
 138                . ./test_vars || error "failed to load updated environment"
 139        fi
 140        if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"; then
 141                echo ""
 142        fi
 143        return "$eval_ret"
 144}
 145
 146
 147test_perf () {
 148        test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
 149        test "$#" = 2 ||
 150        error "bug in the test script: not 2 or 3 parameters to test-expect-success"
 151        export test_prereq
 152        if ! test_skip "$@"
 153        then
 154                base=$(basename "$0" .sh)
 155                echo "$test_count" >>"$perf_results_dir"/$base.subtests
 156                echo "$1" >"$perf_results_dir"/$base.$test_count.descr
 157                if test -z "$verbose"; then
 158                        echo -n "perf $test_count - $1:"
 159                else
 160                        echo "perf $test_count - $1:"
 161                fi
 162                for i in $(seq 1 $GIT_PERF_REPEAT_COUNT); do
 163                        say >&3 "running: $2"
 164                        if test_run_perf_ "$2"
 165                        then
 166                                if test -z "$verbose"; then
 167                                        echo -n " $i"
 168                                else
 169                                        echo "* timing run $i/$GIT_PERF_REPEAT_COUNT:"
 170                                fi
 171                        else
 172                                test -z "$verbose" && echo
 173                                test_failure_ "$@"
 174                                break
 175                        fi
 176                done
 177                if test -z "$verbose"; then
 178                        echo " ok"
 179                else
 180                        test_ok_ "$1"
 181                fi
 182                base="$perf_results_dir"/"$perf_results_prefix$(basename "$0" .sh)"."$test_count"
 183                "$TEST_DIRECTORY"/perf/min_time.perl test_time.* >"$base".times
 184        fi
 185        echo >&3 ""
 186}
 187
 188# We extend test_done to print timings at the end (./run disables this
 189# and does it after running everything)
 190test_at_end_hook_ () {
 191        if test -z "$GIT_PERF_AGGREGATING_LATER"; then
 192                ( cd "$TEST_DIRECTORY"/perf && ./aggregate.perl $(basename "$0") )
 193        fi
 194}
 195
 196test_export () {
 197        export "$@"
 198}