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30a42c6)
I completely ruined this now and therefore I had to make
it new again:
* I split the parameters into smaller chunks now and added
comments about why we have chosen those.
* I move it all to configure_build() since we do not need
to check if the host architecture is 64 bit capable, but
the architecture we are building for.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
MAKETUNING="-j${parallelism}"
fi
MAKETUNING="-j${parallelism}"
fi
+
+ # Compression parameters
+ # We use mode 8 for reasonable memory usage when decompressing
+ # but with overall good compression
+ XZ_OPT="-8"
+
+ # We try to use as many cores as possible
+ XZ_OPT="${XZ_OPT} -T0"
+
+ # We need to limit memory because XZ uses too much when running
+ # in parallel and it isn't very smart in limiting itself.
+ # We allow XZ to use up to 70% of all system memory.
+ local xz_memory=$(( HOST_MEM * 7 / 10 ))
+
+ # XZ memory cannot be larger than 2GB on 32 bit systems
+ case "${build_arch}" in
+ i*86|armv*)
+ if [ ${xz_memory} -gt 2048 ]; then
+ xz_memory=2048
+ fi
+ ;;
+ esac
+
+ XZ_OPT="${XZ_OPT} --memory=${xz_memory}MiB"
}
configure_build_guess() {
}
configure_build_guess() {
# Get the amount of memory in this build system
HOST_MEM=$(system_memory)
# Get the amount of memory in this build system
HOST_MEM=$(system_memory)
-# We compress archives with "xz -8", using all cores and up to 70% of memory
-XZ_MEM=$(( HOST_MEM * 7 / 10 ))
-
-# XZ memory cannot be larger than 2GB on 32 bit systems
-case "${HOST_ARCH}" in
- i*86|armv*)
- if [ ${XZ_MEM} -gt 2048 ]; then
- XZ_MEM=2048
- fi
- ;;
-esac
-
-XZ_OPT="-T0 -8 --memory=${XZ_MEM}MiB"
-
if [ -n "${BUILD_ARCH}" ]; then
configure_build "${BUILD_ARCH}"
else
if [ -n "${BUILD_ARCH}" ]; then
configure_build "${BUILD_ARCH}"
else