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| author |  Jeff Hostetler <jeffhost@microsoft.com> | 2021-02-03 15:34:43 +0000 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2021-02-16 17:14:34 -0800 |
| commit | 4f2009dce2d270ded8bb94417becf6cc2143c70c (patch) | |
| tree | 1ca725a66929a65e8bc2a0d98be514f89faa0853 | |
| parent | p7519: move watchman cleanup earlier in the test (diff) | |
| download | tgif-4f2009dce2d270ded8bb94417becf6cc2143c70c.tar.xz | |
p7519: add trace logging during perf test
Add optional trace logging to allow us to better compare performance of
various fsmonitor providers and compare results with non-fsmonitor runs.
Currently, this includes Trace2 logging, but may be extended to include
other trace targets, such as GIT_TRACE_FSMONITOR if desired.
Using this logging helped me explain an odd behavior on MacOS where the
kernel was dropping events and causing the hook to Watchman to timeout.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | t/perf/.gitignore | 1 | ||||
| -rw-r--r-- | t/perf/Makefile | 4 | ||||
| -rwxr-xr-x | t/perf/p7519-fsmonitor.sh | 32 |
3 files changed, 35 insertions, 2 deletions
diff --git a/t/perf/.gitignore b/t/perf/.gitignore index 982eb8e3a9..72f5d0d314 100644 --- a/t/perf/.gitignore +++ b/t/perf/.gitignore @@ -1,3 +1,4 @@ /build/ /test-results/ +/test-trace/ /trash directory*/ diff --git a/t/perf/Makefile b/t/perf/Makefile index fcb0e8865e..2465770a78 100644 --- a/t/perf/Makefile +++ b/t/perf/Makefile @@ -7,10 +7,10 @@ perf: pre-clean ./run pre-clean: - rm -rf test-results + rm -rf test-results test-trace clean: - rm -rf build "trash directory".* test-results + rm -rf build "trash directory".* test-results test-trace test-lint: $(MAKE) -C .. test-lint diff --git a/t/perf/p7519-fsmonitor.sh b/t/perf/p7519-fsmonitor.sh index 78e7d2c03f..aa0ea0e2ec 100755 --- a/t/perf/p7519-fsmonitor.sh +++ b/t/perf/p7519-fsmonitor.sh @@ -32,6 +32,8 @@ test_description="Test core.fsmonitor" # # GIT_PERF_7519_DROP_CACHE: if set, the OS caches are dropped between tests # +# GIT_PERF_7519_TRACE: if set, enable trace logging during the test. +# Trace logs will be grouped by fsmonitor provider. test_perf_large_repo test_checkout_worktree @@ -70,6 +72,32 @@ then fi fi +trace_start() { + if test -n "$GIT_PERF_7519_TRACE" + then + name="$1" + TEST_TRACE_DIR="$TEST_OUTPUT_DIRECTORY/test-trace/p7519/" + echo "Writing trace logging to $TEST_TRACE_DIR" + + mkdir -p "$TEST_TRACE_DIR" + + # Start Trace2 logging and any other GIT_TRACE_* logs that you + # want for this named test case. + + GIT_TRACE2_PERF="$TEST_TRACE_DIR/$name.trace2perf" + export GIT_TRACE2_PERF + + >"$GIT_TRACE2_PERF" + fi +} + +trace_stop() { + if test -n "$GIT_PERF_7519_TRACE" + then + unset GIT_TRACE2_PERF + fi +} + test_expect_success "one time repo setup" ' # set untrackedCache depending on the environment if test -n "$GIT_PERF_7519_UNTRACKED_CACHE" @@ -213,6 +241,7 @@ test_fsmonitor_suite() { # such as Watchman. # +trace_start fsmonitor-watchman if test -n "$GIT_PERF_7519_FSMONITOR"; then for INTEGRATION_PATH in $GIT_PERF_7519_FSMONITOR; do test_expect_success "setup for fsmonitor $INTEGRATION_PATH" 'setup_for_fsmonitor' @@ -231,11 +260,13 @@ then # preventing the removal of the trash directory watchman shutdown-server >/dev/null 2>&1 fi +trace_stop # # Run a full set of perf tests with the fsmonitor feature disabled. # +trace_start fsmonitor-disabled test_expect_success "setup without fsmonitor" ' unset INTEGRATION_SCRIPT && git config --unset core.fsmonitor && @@ -243,5 +274,6 @@ test_expect_success "setup without fsmonitor" ' ' test_fsmonitor_suite +trace_stop test_done |