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annotate: pre-calculate the "needed" dictionary (issue5360) The "needed" dict is used as a reference counter to free items in the giant "hist" dict. However, currently it is not very accurate and can lead to dropping "hist" items unnecessarily, for example, with the following DAG, -3- / \ 0--1--2--4-- The current algorithm will visit and calculate rev 1 twice, undesired. And it tries to be smart by clearing rev 1's parents: "pcache[1] = []" at the time hist[1] being accessed (note: hist[1] needs to be used twice, by rev 2 and rev 3). It can result in incorrect results if p1 of rev 4 deletes chunks belonging to rev 0. However, simply removing "needed" is not okay, because it will consume 10x memory: # without any change % HGRCPATH= lrun ./hg annotate mercurial/commands.py -r d130a38 3>&2 [1] MEMORY 49074176 CPUTIME 9.213 REALTIME 9.270 # with "needed" removed MEMORY 637673472 CPUTIME 8.164 REALTIME 8.249 This patch moves "needed" (and "pcache") calculation to a separate DFS to address the issue. It improves perf and fixes issue5360 by correctly reusing hist, while maintaining low memory usage. Some additional attempt has been made to further reduce memory usage, like changing "pcache[f] = []" to "del pcache[f]". Therefore the result can be both faster and lower memory usage: # with this patch applied MEMORY 47575040 CPUTIME 7.870 REALTIME 7.926 [1]: lrun is a lightweight sandbox built on Linux cgroup and namespace. It's used to measure CPU and memory usage here. Source code is available at github.com/quark-zju/lrun.
author Jun Wu <quark@fb.com>
date Fri, 02 Sep 2016 15:20:59 +0100
parents 17b3309bfdff
children afa74947a414
line wrap: on
line source

# If you want to change PREFIX, do not just edit it below. The changed
# value wont get passed on to recursive make calls. You should instead
# override the variable on the command like:
#
# % make PREFIX=/opt/ install

export PREFIX=/usr/local
PYTHON=python
$(eval HGROOT := $(shell pwd))
HGPYTHONS ?= $(HGROOT)/build/pythons
PURE=
PYFILES:=$(shell find mercurial hgext doc -name '*.py')
DOCFILES=mercurial/help/*.txt
export LANGUAGE=C
export LC_ALL=C
TESTFLAGS ?= $(shell echo $$HGTESTFLAGS)

# Set this to e.g. "mingw32" to use a non-default compiler.
COMPILER=

COMPILERFLAG_tmp_ =
COMPILERFLAG_tmp_${COMPILER} ?= -c $(COMPILER)
COMPILERFLAG=${COMPILERFLAG_tmp_${COMPILER}}

help:
	@echo 'Commonly used make targets:'
	@echo '  all          - build program and documentation'
	@echo '  install      - install program and man pages to $$PREFIX ($(PREFIX))'
	@echo '  install-home - install with setup.py install --home=$$HOME ($(HOME))'
	@echo '  local        - build for inplace usage'
	@echo '  tests        - run all tests in the automatic test suite'
	@echo '  test-foo     - run only specified tests (e.g. test-merge1.t)'
	@echo '  dist         - run all tests and create a source tarball in dist/'
	@echo '  clean        - remove files created by other targets'
	@echo '                 (except installed files or dist source tarball)'
	@echo '  update-pot   - update i18n/hg.pot'
	@echo
	@echo 'Example for a system-wide installation under /usr/local:'
	@echo '  make all && su -c "make install" && hg version'
	@echo
	@echo 'Example for a local installation (usable in this directory):'
	@echo '  make local && ./hg version'

all: build doc

local:
	$(PYTHON) setup.py $(PURE) \
	  build_py -c -d . \
	  build_ext $(COMPILERFLAG) -i \
	  build_hgexe $(COMPILERFLAG) -i \
	  build_mo
	env HGRCPATH= $(PYTHON) hg version

build:
	$(PYTHON) setup.py $(PURE) build $(COMPILERFLAG)

wheel:
	FORCE_SETUPTOOLS=1 $(PYTHON) setup.py $(PURE) bdist_wheel $(COMPILERFLAG)

doc:
	$(MAKE) -C doc

cleanbutpackages:
	-$(PYTHON) setup.py clean --all # ignore errors from this command
	find contrib doc hgext hgext3rd i18n mercurial tests \
		\( -name '*.py[cdo]' -o -name '*.so' \) -exec rm -f '{}' ';'
	rm -f $(addprefix mercurial/,$(notdir $(wildcard mercurial/pure/[a-z]*.py)))
	rm -f MANIFEST MANIFEST.in hgext/__index__.py tests/*.err
	rm -f mercurial/__modulepolicy__.py
	if test -d .hg; then rm -f mercurial/__version__.py; fi
	rm -rf build mercurial/locale
	$(MAKE) -C doc clean
	$(MAKE) -C contrib/chg distclean

clean: cleanbutpackages
	rm -rf packages

install: install-bin install-doc

install-bin: build
	$(PYTHON) setup.py $(PURE) install --root="$(DESTDIR)/" --prefix="$(PREFIX)" --force

install-doc: doc
	cd doc && $(MAKE) $(MFLAGS) install

install-home: install-home-bin install-home-doc

install-home-bin: build
	$(PYTHON) setup.py $(PURE) install --home="$(HOME)" --prefix="" --force

install-home-doc: doc
	cd doc && $(MAKE) $(MFLAGS) PREFIX="$(HOME)" install

MANIFEST-doc:
	$(MAKE) -C doc MANIFEST

MANIFEST.in: MANIFEST-doc
	hg manifest | sed -e 's/^/include /' > MANIFEST.in
	echo include mercurial/__version__.py >> MANIFEST.in
	sed -e 's/^/include /' < doc/MANIFEST >> MANIFEST.in

dist:	tests dist-notests

dist-notests:	doc MANIFEST.in
	TAR_OPTIONS="--owner=root --group=root --mode=u+w,go-w,a+rX-s" $(PYTHON) setup.py -q sdist

check: tests

tests:
	cd tests && $(PYTHON) run-tests.py $(TESTFLAGS)

test-%:
	cd tests && $(PYTHON) run-tests.py $(TESTFLAGS) $@

testpy-%:
	@echo Looking for Python $* in $(HGPYTHONS)
	[ -e $(HGPYTHONS)/$*/bin/python ] || ( \
	cd $$(mktemp --directory --tmpdir) && \
        $(MAKE) -f $(HGROOT)/contrib/Makefile.python PYTHONVER=$* PREFIX=$(HGPYTHONS)/$* python )
	cd tests && $(HGPYTHONS)/$*/bin/python run-tests.py $(TESTFLAGS)

check-code:
	hg manifest | xargs python contrib/check-code.py

update-pot: i18n/hg.pot

i18n/hg.pot: $(PYFILES) $(DOCFILES) i18n/posplit i18n/hggettext
	$(PYTHON) i18n/hggettext mercurial/commands.py \
	  hgext/*.py hgext/*/__init__.py \
	  mercurial/fileset.py mercurial/revset.py \
	  mercurial/templatefilters.py mercurial/templatekw.py \
	  mercurial/templater.py \
	  mercurial/filemerge.py \
	  mercurial/hgweb/webcommands.py \
	  $(DOCFILES) > i18n/hg.pot.tmp
        # All strings marked for translation in Mercurial contain
        # ASCII characters only. But some files contain string
        # literals like this '\037\213'. xgettext thinks it has to
        # parse them even though they are not marked for translation.
        # Extracting with an explicit encoding of ISO-8859-1 will make
        # xgettext "parse" and ignore them.
	echo $(PYFILES) | xargs \
	  xgettext --package-name "Mercurial" \
	  --msgid-bugs-address "<mercurial-devel@selenic.com>" \
	  --copyright-holder "Matt Mackall <mpm@selenic.com> and others" \
	  --from-code ISO-8859-1 --join --sort-by-file --add-comments=i18n: \
	  -d hg -p i18n -o hg.pot.tmp
	$(PYTHON) i18n/posplit i18n/hg.pot.tmp
        # The target file is not created before the last step. So it never is in
        # an intermediate state.
	mv -f i18n/hg.pot.tmp i18n/hg.pot

%.po: i18n/hg.pot
        # work on a temporary copy for never having a half completed target
	cp $@ $@.tmp
	msgmerge --no-location --update $@.tmp $^
	mv -f $@.tmp $@

# Packaging targets

osx:
	/usr/bin/python2.7 setup.py install --optimize=1 \
	  --root=build/mercurial/ --prefix=/usr/local/ \
	  --install-lib=/Library/Python/2.7/site-packages/
	make -C doc all install DESTDIR="$(PWD)/build/mercurial/"
	mkdir -p $${OUTPUTDIR:-dist}
	pkgbuild --root build/mercurial/ --identifier org.mercurial-scm.mercurial \
	  build/mercurial.pkg
	HGVER=$$((cat build/mercurial/Library/Python/2.7/site-packages/mercurial/__version__.py; echo 'print(version)') | python) && \
	OSXVER=$$(sw_vers -productVersion | cut -d. -f1,2) && \
	productbuild --distribution contrib/macosx/distribution.xml \
	  --package-path build/ \
	  --version "$${HGVER}" \
	  --resources contrib/macosx/ \
	  "$${OUTPUTDIR:-dist/}"/Mercurial-"$${HGVER}"-macosx"$${OSXVER}".pkg

deb:
	contrib/builddeb

ppa:
	contrib/builddeb --source-only

docker-debian-jessie:
	mkdir -p packages/debian-jessie
	contrib/dockerdeb debian jessie

contrib/docker/ubuntu-%: contrib/docker/ubuntu.template
	sed "s/__CODENAME__/$*/" $< > $@

docker-ubuntu-trusty: contrib/docker/ubuntu-trusty
	contrib/dockerdeb ubuntu trusty

docker-ubuntu-trusty-ppa: contrib/docker/ubuntu-trusty
	contrib/dockerdeb ubuntu trusty --source-only

docker-ubuntu-wily: contrib/docker/ubuntu-wily
	contrib/dockerdeb ubuntu wily

docker-ubuntu-wily-ppa: contrib/docker/ubuntu-wily
	contrib/dockerdeb ubuntu wily --source-only

docker-ubuntu-xenial: contrib/docker/ubuntu-xenial
	contrib/dockerdeb ubuntu xenial

docker-ubuntu-xenial-ppa: contrib/docker/ubuntu-xenial
	contrib/dockerdeb ubuntu xenial --source-only

fedora20:
	mkdir -p packages/fedora20
	contrib/buildrpm
	cp rpmbuild/RPMS/*/* packages/fedora20
	cp rpmbuild/SRPMS/* packages/fedora20
	rm -rf rpmbuild

docker-fedora20:
	mkdir -p packages/fedora20
	contrib/dockerrpm fedora20

fedora21:
	mkdir -p packages/fedora21
	contrib/buildrpm
	cp rpmbuild/RPMS/*/* packages/fedora21
	cp rpmbuild/SRPMS/* packages/fedora21
	rm -rf rpmbuild

docker-fedora21:
	mkdir -p packages/fedora21
	contrib/dockerrpm fedora21

centos5:
	mkdir -p packages/centos5
	contrib/buildrpm --withpython
	cp rpmbuild/RPMS/*/* packages/centos5
	cp rpmbuild/SRPMS/* packages/centos5

docker-centos5:
	mkdir -p packages/centos5
	contrib/dockerrpm centos5 --withpython

centos6:
	mkdir -p packages/centos6
	contrib/buildrpm
	cp rpmbuild/RPMS/*/* packages/centos6
	cp rpmbuild/SRPMS/* packages/centos6

docker-centos6:
	mkdir -p packages/centos6
	contrib/dockerrpm centos6

centos7:
	mkdir -p packages/centos7
	contrib/buildrpm
	cp rpmbuild/RPMS/*/* packages/centos7
	cp rpmbuild/SRPMS/* packages/centos7

docker-centos7:
	mkdir -p packages/centos7
	contrib/dockerrpm centos7

.PHONY: help all local build doc cleanbutpackages clean install install-bin \
	install-doc install-home install-home-bin install-home-doc \
	dist dist-notests check tests check-code update-pot \
	osx fedora20 docker-fedora20 fedora21 docker-fedora21 \
	centos5 docker-centos5 centos6 docker-centos6 centos7 docker-centos7