lix/tests/local.mk
Graham Christensen ee9c988a1b
Track function start and ends for flame graphs
With this patch, and this file I called `log.py`:

    #!/usr/bin/env nix-shell
    #!nix-shell -i python3 -p python3 --pure

    import sys
    from pprint import pprint

    stack = []
    timestack = []

    for line in open(sys.argv[1]):
        components = line.strip().split(" ", 2)
        if components[0] != "function-trace":
            continue

        direction = components[1]
        components = components[2].rsplit(" ", 2)

        loc = components[0]
        _at = components[1]
        time = int(components[2])

        if direction == "entered":
            stack.append(loc)
            timestack.append(time)
        elif direction == "exited":
            dur = time - timestack.pop()
            vst = ";".join(stack)
            print(f"{vst} {dur}")
            stack.pop()

and:

    nix-instantiate --trace-function-calls -vvvv ../nixpkgs/pkgs/top-level/release.nix -A unstable > log.matthewbauer 2>&1
    ./log.py ./log.matthewbauer > log.matthewbauer.folded
    flamegraph.pl --title matthewbauer-post-pr log.matthewbauer.folded > log.matthewbauer.folded.svg

I can make flame graphs like: http://gsc.io/log.matthewbauer.folded.svg

---

Includes test cases around function call failures and tryEval. Uses
RAII so the finish is always called at the end of the function.
2019-08-14 16:09:35 -04:00

43 lines
1.2 KiB
Makefile

check:
@echo "Warning: Nix has no 'make check'. Please install Nix and run 'make installcheck' instead."
nix_tests = \
init.sh hash.sh lang.sh add.sh simple.sh dependencies.sh \
gc.sh \
gc-concurrent.sh \
gc-auto.sh \
referrers.sh user-envs.sh logging.sh nix-build.sh misc.sh fixed.sh \
gc-runtime.sh check-refs.sh filter-source.sh \
remote-store.sh export.sh export-graph.sh \
timeout.sh secure-drv-outputs.sh nix-channel.sh \
multiple-outputs.sh import-derivation.sh fetchurl.sh optimise-store.sh \
binary-cache.sh nix-profile.sh repair.sh dump-db.sh case-hack.sh \
check-reqs.sh pass-as-file.sh tarball.sh restricted.sh \
placeholders.sh nix-shell.sh \
linux-sandbox.sh \
build-dry.sh \
build-remote.sh \
nar-access.sh \
structured-attrs.sh \
fetchGit.sh \
fetchMercurial.sh \
signing.sh \
run.sh \
brotli.sh \
pure-eval.sh \
check.sh \
plugins.sh \
search.sh \
nix-copy-ssh.sh \
post-hook.sh \
function-trace.sh
# parallel.sh
install-tests += $(foreach x, $(nix_tests), tests/$(x))
tests-environment = NIX_REMOTE= $(bash) -e
clean-files += $(d)/common.sh
installcheck: $(d)/common.sh $(d)/plugins/libplugintest.$(SO_EXT)