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Add configure support for linking tcmalloc_minimal and/or jemalloc

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Both tcmalloc_minimal and jemalloc outperform the native malloc
implemention on Windows (MSVCRT) in terms of committed memory
consumption (~-30%) and performance (e.g. far less page faults, ~-60%),
depending, of course, on the actual workload.
The longer the download queue, the bigger the impact ;)

On *nix the picture is a little different... tcmalloc usually still
outperforms the native malloc implementation, but not that significantly
than on Windows. jemalloc however is only marginally better than recent
native Linux implementations, while it is already used by some BSD as the
native allocator.

tcmalloc is part of gperftools and very mature and tested by now. It
doesn't work on OSX in the default configuration, however.
http://code.google.com/p/gperftools/

jemalloc is the default allocator at least on FreeBSD and NetBSD and
used in Firefox.
http://www.canonware.com/jemalloc/index.html
This commit is contained in:
Nils Maier 2013-02-27 13:33:43 +01:00
parent e548a1a225
commit d2c1fbd792
1 changed files with 53 additions and 0 deletions
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53
configure.ac
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@ -35,6 +35,8 @@ ARIA2_ARG_WITHOUT([libxml2])
ARIA2_ARG_WITHOUT([libexpat])
ARIA2_ARG_WITHOUT([libcares])
ARIA2_ARG_WITHOUT([libz])
ARIA2_ARG_WITH([tcmalloc])
ARIA2_ARG_WITH([jemalloc])
ARIA2_ARG_DISABLE([bittorrent])
ARIA2_ARG_DISABLE([metalink])
@ -524,6 +526,57 @@ AC_CHECK_FUNCS([__argz_count \
utime \
utimes])
dnl Put tcmalloc/jemalloc checks after the posix_memalign check.
dnl These libraries may implement posix_memalign, while the usual CRT may not
dnl (e.g. mingw). Since we aren't including the corresponding library headers
dnl this will lead to undefined posix_memalign() errors when compiling
if test "x$with_tcmalloc_requested" = "xyes" &&
test "x$with_jemalloc_requested" = "xyes"; then
AC_MSG_FAILURE([Cannot use both, tcmalloc and jemalloc!])
fi
if test "x$with_tcmalloc" = "xyes"; then
dnl Important: put malloc libs at the very end.
dnl Only newish versions have a .pc, thus try CHECK_LIB as well.
PKG_CHECK_MODULES([TCMALLOC], [libtcmalloc_minimal], [have_tcmalloc=yes], [have_tcmalloc=no])
if test "x$have_tcmalloc" = "xyes"; then
CPPFLAGS="$TCMALLOC_CFLAGS $CPPFLAGS"
LDFLAGS="$TCMALLOC_LDFLAGS $CPPFLAGS"
LIBS="$LIBS $TCMALLOC_LIBS"
else
AC_CHECK_LIB([tcmalloc_minimal], [malloc], [have_tcmalloc=yes], [have_tcmalloc=no])
if test "x$have_tcmalloc" = "xyes"; then
LIBS="$LIBS -ltcmalloc_minimal"
else
if test "x$with_tcmalloc_requested" = "xyes"; then
ARIA2_DEP_NOT_MET([tcmalloc_minimal])
fi
fi
fi
fi
if test "x$have_tcmalloc" != "xyes" && test "x$with_jemalloc" = "xyes"; then
dnl Important: put malloc libs at the very end.
dnl Usually jemalloc does not come with a .pc, as the official source does not
dnl generate one.
PKG_CHECK_MODULES([JEMALLOC], [jemalloc], [have_jemalloc=yes], [have_jemalloc=no])
if test "x$have_jemalloc" = "xyes"; then
CPPFLAGS="$JEMALLOC_CFLAGS $CPPFLAGS"
LDFLAGS="$JEMALLOC_LDFLAGS $CPPFLAGS"
LIBS="$LIBS $JEMALLOC_LIBS"
else
AC_CHECK_LIB([jemalloc], [malloc], [have_jemalloc=yes], [have_jemalloc=no])
if test "x$have_jemalloc" = "xyes"; then
LIBS="$LIBS -ljemalloc"
else
if test "x$with_jemalloc_requested" = "xyes"; then
ARIA2_DEP_NOT_MET([jemalloc (unprefixed)])
fi
fi
fi
fi
if test "x$enable_epoll" = "xyes"; then
AC_CHECK_FUNCS([epoll_create], [have_epoll=yes])
if test "x$have_epoll" = "xyes"; then