| Message ID | 1401307959-19956-1-git-send-email-gustavo@zacarias.com.ar |
|---|---|
| State | Accepted |
| Headers | show |
Dear Gustavo Zacarias, On Wed, 28 May 2014 17:12:39 -0300, Gustavo Zacarias wrote: > Using a trick taken from gentoo enable parallel build when building for > the target to reduce the build time for my test case from about 54s to > 32s on a dual-core laptop. > > Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Without the patch: real 0m29.326s user 0m23.549s sys 0m8.617s With the patch: real 0m18.839s user 0m40.948s sys 0m10.707s A reduction of 11 seconds of the real build time, on a quad-core i7 laptop. Best regards, Thomas
>>>>> "Gustavo" == Gustavo Zacarias <gustavo@zacarias.com.ar> writes: > Using a trick taken from gentoo enable parallel build when building for > the target to reduce the build time for my test case from about 54s to > 32s on a dual-core laptop. > Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> I'm personally not convinced that the extra complexity is worth the 10-20s faster build in the context of a 30m-1h Buildroot build - But ok, you guys do and atleast it is selfcontained. > --- > package/ncurses/ncurses.mk | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > diff --git a/package/ncurses/ncurses.mk b/package/ncurses/ncurses.mk > index 9805113..8e4b9e7 100644 > --- a/package/ncurses/ncurses.mk > +++ b/package/ncurses/ncurses.mk > @@ -46,7 +46,9 @@ NCURSES_CONF_OPT += --without-debug > endif I've added a comment above explaining where this magic comes from and committed, thanks. > define NCURSES_BUILD_CMDS > - $(MAKE1) -C $(@D) DESTDIR=$(STAGING_DIR) > + $(MAKE1) -C $(@D) DESTDIR=$(STAGING_DIR) sources > + rm -rf $(@D)/misc/pc-files > + $(MAKE) -C $(@D) DESTDIR=$(STAGING_DIR) > endef > ifneq ($(BR2_PREFER_STATIC_LIB),y) > -- > 1.8.5.5 > _______________________________________________ > buildroot mailing list > buildroot@busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot
diff --git a/package/ncurses/ncurses.mk b/package/ncurses/ncurses.mk index 9805113..8e4b9e7 100644 --- a/package/ncurses/ncurses.mk +++ b/package/ncurses/ncurses.mk @@ -46,7 +46,9 @@ NCURSES_CONF_OPT += --without-debug endif define NCURSES_BUILD_CMDS - $(MAKE1) -C $(@D) DESTDIR=$(STAGING_DIR) + $(MAKE1) -C $(@D) DESTDIR=$(STAGING_DIR) sources + rm -rf $(@D)/misc/pc-files + $(MAKE) -C $(@D) DESTDIR=$(STAGING_DIR) endef ifneq ($(BR2_PREFER_STATIC_LIB),y)
Using a trick taken from gentoo enable parallel build when building for the target to reduce the build time for my test case from about 54s to 32s on a dual-core laptop. Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> --- package/ncurses/ncurses.mk | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)