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t/perf: add iteration setup mechanism to perf-lib
Tests that affect the repo in stateful ways are easier to write if we can run setup steps outside of the measured portion of perf iteration. This change adds a "--setup 'setup-script'" parameter to test_perf. To make invocations easier to understand, I also moved the prerequisites to a new --prereq parameter. The setup facility will be used in the upcoming perf tests for batch mode, but it already helps in some existing tests, like t5302 and t7820. Signed-off-by: Neeraj Singh <neerajsi@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Neeraj Singh
Junio C Hamano
parent
d42bab442d
commit
5dccd9155f
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@ -36,7 +36,8 @@ do
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else
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prereq=""
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fi
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test_perf $prereq "$engine log$GIT_PERF_4220_LOG_OPTS --grep='$pattern'" "
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test_perf "$engine log$GIT_PERF_4220_LOG_OPTS --grep='$pattern'" \
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--prereq "$prereq" "
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git -c grep.patternType=$engine log --pretty=format:%h$GIT_PERF_4220_LOG_OPTS --grep='$pattern' >'out.$engine' || :
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"
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done
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@ -26,7 +26,8 @@ do
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else
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prereq=""
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fi
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test_perf $prereq "$engine log$GIT_PERF_4221_LOG_OPTS --grep='$pattern'" "
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test_perf "$engine log$GIT_PERF_4221_LOG_OPTS --grep='$pattern'" \
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--prereq "$prereq" "
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git -c grep.patternType=$engine log --pretty=format:%h$GIT_PERF_4221_LOG_OPTS --grep='$pattern' >'out.$engine' || :
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"
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done
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@ -26,9 +26,8 @@ test_expect_success 'set up thread-counting tests' '
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done
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'
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test_perf PERF_EXTRA 'index-pack 0 threads' '
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rm -rf repo.git &&
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git init --bare repo.git &&
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test_perf 'index-pack 0 threads' --prereq PERF_EXTRA \
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--setup 'rm -rf repo.git && git init --bare repo.git' '
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GIT_DIR=repo.git git index-pack --threads=1 --stdin < $PACK
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'
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@ -36,17 +35,15 @@ for t in $threads
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do
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THREADS=$t
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export THREADS
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test_perf PERF_EXTRA "index-pack $t threads" '
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rm -rf repo.git &&
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git init --bare repo.git &&
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test_perf "index-pack $t threads" --prereq PERF_EXTRA \
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--setup 'rm -rf repo.git && git init --bare repo.git' '
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GIT_DIR=repo.git GIT_FORCE_THREADS=1 \
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git index-pack --threads=$THREADS --stdin <$PACK
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'
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done
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test_perf 'index-pack default number of threads' '
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rm -rf repo.git &&
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git init --bare repo.git &&
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test_perf 'index-pack default number of threads' \
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--setup 'rm -rf repo.git && git init --bare repo.git' '
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GIT_DIR=repo.git git index-pack --stdin < $PACK
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'
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@ -60,18 +60,6 @@ then
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esac
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fi
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if test -n "$GIT_PERF_7519_DROP_CACHE"
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then
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# When using GIT_PERF_7519_DROP_CACHE, GIT_PERF_REPEAT_COUNT must be 1 to
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# generate valid results. Otherwise the caching that happens for the nth
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# run will negate the validity of the comparisons.
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if test "$GIT_PERF_REPEAT_COUNT" -ne 1
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then
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echo "warning: Setting GIT_PERF_REPEAT_COUNT=1" >&2
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GIT_PERF_REPEAT_COUNT=1
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fi
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fi
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trace_start() {
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if test -n "$GIT_PERF_7519_TRACE"
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then
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@ -167,10 +155,10 @@ setup_for_fsmonitor() {
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test_perf_w_drop_caches () {
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if test -n "$GIT_PERF_7519_DROP_CACHE"; then
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test-tool drop-caches
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test_perf "$1" --setup "test-tool drop-caches" "$2"
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else
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test_perf "$@"
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fi
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test_perf "$@"
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}
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test_fsmonitor_suite() {
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@ -49,13 +49,15 @@ do
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fi
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if ! test_have_prereq PERF_GREP_ENGINES_THREADS
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then
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test_perf $prereq "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern'" "
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test_perf "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern'" \
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--prereq "$prereq" "
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git -c grep.patternType=$engine grep$GIT_PERF_7820_GREP_OPTS -- '$pattern' >'out.$engine' || :
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"
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else
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for threads in $GIT_PERF_GREP_THREADS
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do
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test_perf PTHREADS,$prereq "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern' with $threads threads" "
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test_perf "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern' with $threads threads"
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--prereq PTHREADS,$prereq "
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git -c grep.patternType=$engine -c grep.threads=$threads grep$GIT_PERF_7820_GREP_OPTS -- '$pattern' >'out.$engine.$threads' || :
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"
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done
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@ -189,19 +189,39 @@ exit $ret' >&3 2>&4
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}
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test_wrapper_ () {
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test_wrapper_func_=$1; shift
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local test_wrapper_func_="$1"; shift
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local test_title_="$1"; shift
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test_start_
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test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
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test "$#" = 2 ||
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BUG "not 2 or 3 parameters to test-expect-success"
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test_prereq=
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test_perf_setup_=
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while test $# != 0
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do
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case $1 in
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--prereq)
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test_prereq=$2
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shift
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;;
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--setup)
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test_perf_setup_=$2
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shift
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;;
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*)
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break
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;;
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esac
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shift
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done
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test "$#" = 1 || BUG "test_wrapper_ needs 2 positional parameters"
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export test_prereq
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if ! test_skip "$@"
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export test_perf_setup_
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if ! test_skip "$test_title_" "$@"
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then
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base=$(basename "$0" .sh)
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echo "$test_count" >>"$perf_results_dir"/$base.subtests
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echo "$1" >"$perf_results_dir"/$base.$test_count.descr
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base="$perf_results_dir"/"$PERF_RESULTS_PREFIX$(basename "$0" .sh)"."$test_count"
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"$test_wrapper_func_" "$@"
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"$test_wrapper_func_" "$test_title_" "$@"
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fi
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test_finish_
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@ -214,6 +234,16 @@ test_perf_ () {
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echo "perf $test_count - $1:"
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fi
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for i in $(test_seq 1 $GIT_PERF_REPEAT_COUNT); do
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if test -n "$test_perf_setup_"
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then
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say >&3 "setup: $test_perf_setup_"
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if ! test_eval_ $test_perf_setup_
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then
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test_failure_ "$test_perf_setup_"
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break
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fi
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fi
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say >&3 "running: $2"
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if test_run_perf_ "$2"
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then
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@ -237,11 +267,24 @@ test_perf_ () {
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rm test_time.*
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}
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# Usage: test_perf 'title' [options] 'perf-test'
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# Run the performance test script specified in perf-test with
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# optional prerequisite and setup steps.
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# Options:
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# --prereq prerequisites: Skip the test if prequisites aren't met
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# --setup "setup-steps": Run setup steps prior to each measured iteration
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#
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test_perf () {
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test_wrapper_ test_perf_ "$@"
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}
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test_size_ () {
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if test -n "$test_perf_setup_"
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then
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say >&3 "setup: $test_perf_setup_"
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test_eval_ $test_perf_setup_
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fi
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say >&3 "running: $2"
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if test_eval_ "$2" 3>"$base".result; then
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test_ok_ "$1"
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@ -250,6 +293,14 @@ test_size_ () {
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fi
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}
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# Usage: test_size 'title' [options] 'size-test'
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# Run the size test script specified in size-test with optional
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# prerequisites and setup steps. Returns the numeric value
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# returned by size-test.
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# Options:
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# --prereq prerequisites: Skip the test if prequisites aren't met
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# --setup "setup-steps": Run setup steps prior to the size measurement
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test_size () {
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test_wrapper_ test_size_ "$@"
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}
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