lix/src/libutil/Makefile.am
Eelco Dolstra a583a2bc59 Run the daemon worker on the same CPU as the client
On a system with multiple CPUs, running Nix operations through the
daemon is significantly slower than "direct" mode:

$ NIX_REMOTE= nix-instantiate '<nixos>' -A system
real    0m0.974s
user    0m0.875s
sys     0m0.088s

$ NIX_REMOTE=daemon nix-instantiate '<nixos>' -A system
real    0m2.118s
user    0m1.463s
sys     0m0.218s

The main reason seems to be that the client and the worker get moved
to a different CPU after every call to the worker.  This patch adds a
hack to lock them to the same CPU.  With this, the overhead of going
through the daemon is very small:

$ NIX_REMOTE=daemon nix-instantiate '<nixos>' -A system
real    0m1.074s
user    0m0.809s
sys     0m0.098s
2013-08-07 14:02:04 +02:00

18 lines
459 B
Makefile

pkglib_LTLIBRARIES = libutil.la
libutil_la_SOURCES = util.cc hash.cc serialise.cc \
archive.cc xml-writer.cc affinity.cc
libutil_la_LIBADD = ../boost/format/libformat.la
pkginclude_HEADERS = util.hh hash.hh serialise.hh \
archive.hh xml-writer.hh types.hh affinity.hh
if !HAVE_OPENSSL
libutil_la_SOURCES += \
md5.c md5.h sha1.c sha1.h sha256.c sha256.h md32_common.h
else
libutil_la_LIBADD += @OPENSSL_LIBS@
endif
AM_CXXFLAGS = -Wall -I$(srcdir)/..