mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-05 19:13:46 +00:00
230002ce29
is a heap profiler that is complementary to Massif. DHAT tracks heap
allocations, and connects which memory accesses are to which blocks.
It can find the following information:
* total allocation and max liveness
* average block lifetime (# instructions between allocation and
freeing)
* average number of reads and writes to each byte in the block
("access ratios")
* average of longest interval of non-access to a block, also
measured in instructions
* which fields of blocks are used a lot, and which aren't
(hot-field profiling)
Using these stats it is possible to identify allocation points with
the following characteristics:
* potential process-lifetime leaks (blocks allocated by the point just
accumulate, and are freed only at the end of the run)
* excessive turnover: points which chew through a lot of heap, even if
it is not held onto for very long
* excessively transient: points which allocate very short lived blocks
* useless or underused allocations: blocks which are allocated but not
completely filled in, or are filled in but not subsequently read.
* blocks which see extended periods of inactivity. Could these
perhaps be allocated later or freed sooner?
* blocks with inefficient layout (hot fields spread out over
multiple cache lines), or with alignment holes
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11431
111 lines
2.6 KiB
Makefile
111 lines
2.6 KiB
Makefile
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AUTOMAKE_OPTIONS = foreign 1.7 dist-bzip2
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include $(top_srcdir)/Makefile.all.am
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TOOLS = memcheck \
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cachegrind \
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callgrind \
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massif \
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lackey \
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none \
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helgrind \
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drd
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EXP_TOOLS = exp-ptrcheck \
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exp-bbv \
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exp-dhat
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# DDD: once all tools work on Darwin, TEST_TOOLS and TEST_EXP_TOOLS can be
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# replaced with TOOLS and EXP_TOOLS.
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TEST_TOOLS = $(TOOLS)
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if !VGCONF_OS_IS_DARWIN
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TEST_EXP_TOOLS = $(EXP_TOOLS)
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else
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TEST_EXP_TOOLS = exp-bbv
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endif
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# Put docs last because building the HTML is slow and we want to get
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# everything else working before we try it.
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SUBDIRS = \
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include \
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VEX \
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coregrind \
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. \
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$(TOOLS) \
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$(EXP_TOOLS) \
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tests \
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perf \
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auxprogs \
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mpi \
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docs
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DIST_SUBDIRS = $(SUBDIRS)
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SUPP_FILES = \
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glibc-2.2.supp glibc-2.3.supp glibc-2.4.supp glibc-2.5.supp \
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glibc-2.6.supp glibc-2.7.supp glibc-2.X.supp.in \
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aix5libc.supp xfree-3.supp xfree-4.supp \
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glibc-2.34567-NPTL-helgrind.supp \
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glibc-2.2-LinuxThreads-helgrind.supp \
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glibc-2.X-drd.supp \
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exp-ptrcheck.supp \
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darwin9.supp darwin9-drd.supp \
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darwin10.supp darwin10-drd.supp
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DEFAULT_SUPP_FILES = @DEFAULT_SUPP@
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# We include all the base .supp files in the distribution, but not
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# default.supp, as it is built from the base .supp files at compile-time.
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dist_noinst_DATA = $(SUPP_FILES)
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pkglib_DATA = default.supp
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pkgconfigdir = $(libdir)/pkgconfig
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pkgconfig_DATA = valgrind.pc
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BUILT_SOURCES = default.supp valgrind.pc
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CLEANFILES = default.supp
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default.supp: $(DEFAULT_SUPP_FILES)
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echo "# This is a generated file, composed of the following suppression rules:" > default.supp
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echo "# " $(DEFAULT_SUPP_FILES) >> default.supp
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cat $(DEFAULT_SUPP_FILES) >> default.supp
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## Preprend @PERL@ because tests/vg_regtest isn't executable
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regtest: check
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@PERL@ tests/vg_regtest $(TEST_TOOLS) $(TEST_EXP_TOOLS)
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nonexp-regtest: check
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@PERL@ tests/vg_regtest $(TEST_TOOLS)
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exp-regtest: check
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@PERL@ tests/vg_regtest $(TEST_EXP_TOOLS)
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## Preprend @PERL@ because tests/vg_perf isn't executable
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perf: check
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@PERL@ perf/vg_perf perf
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# Nb: no need to include any Makefile.am files here, or files included from
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# them, as automake includes them automatically. Also not COPYING, README
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# or NEWS.
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# We include valgrind.spec as well as valgrind.spec.in to save packagers
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# from having to run configure (bug 188560).
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EXTRA_DIST = \
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COPYING.DOCS \
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README_DEVELOPERS \
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README_PACKAGERS \
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README_MISSING_SYSCALL_OR_IOCTL \
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valgrind.pc.in \
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valgrind.spec.in \
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valgrind.spec
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dist_noinst_SCRIPTS = \
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vg-in-place
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all-local: default.supp
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mkdir -p $(inplacedir)
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rm -f $(inplacedir)/default.supp
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ln -s ../default.supp $(inplacedir)
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clean-local:
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rm -rf $(inplacedir)
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