X startup times: Jaunty vs. Moblin

[Bryce Harrington]

On Sun, Mar 15, 2009 at 10:38:37AM +0100, Loïc Minier wrote:
> On Sat, Mar 14, 2009, Bryce Harrington wrote:
> > On Sat, Mar 14, 2009 at 06:24:34PM +0100, Lo?c Minier wrote:
> > >  Could the default compiler flags in Moblin explain the difference?
> > >  (they build everything with -march=core2 -mtune=generic -mfpmath=sse
> > >  -Os)
> > > 
> > >  -Os notably could result in smaller binaries which are loaded faster.
> > Sounds plausible to me.  Can you provide the configure string being used
> > for xorg-server and for xserver-xorg-video-intel on Moblin?
> 
>  Sure, here's how to do it yourself: I downloaded
>  http://repo.moblin.org/moblin/development/core/source/xorg-x11-server-1.6.0-1.2.moblin2.src.rpm
>  and extracted it (I have a trivial SRPM extraction script attached);
>  the %configure line from the .spec file:

> %configure --enable-maintainer-mode -disable-xvfb --disable-xnest
  --disable-kdrive --disable-xephyr --disable-xsdl --disable-xfake
  --disable-xfbdev --disable-kdrive-vesa --enable-xorg --with-pic
  --with-default-font-path="catalogue:/etc/X11/fontpath.d,built-ins"
  --with-module-dir=%{_libdir}/xorg/modules --with-builderstring="Build
  ID: %{name} %{version}-%{release}"
  --with-xkb-output=%{_localstatedir}/lib/xkb
  --with-rgb-path=%{_datadir}/X11/rgb --disable-record
  --enable-install-libxf86config --disable-xselinux --disable-xinerama
  --enable-dri2 --enable-dri --with-dri-driver-path=%{_libdir}/dri
  ${CONFIGURE} 

Hmm, nothing leaping out as obvious...  --with-pic maybe?

Here's ours for reference:

confflags += --disable-static \
             --enable-xorg \
             --with-default-font-path="/usr/share/fonts/X11/misc,/usr/share/fonts/X11/cyrillic,/usr/share/fonts/X11/100dpi/:unsca\
led,/usr/share/fonts/X11/75dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,/usr/share/fonts/X11/75dpi,/var/l\
ib/defoma/x-ttcidfont-conf.d/dirs/TrueType" \
             --disable-builtin-fonts \
             --enable-xtrap \
             --enable-record \
             --enable-glx-tls \
             --enable-dmx \
             --enable-vfb \
             --enable-kdrive \
             --enable-xephyr \
             --enable-xcsecurity \
             --enable-appgroup \
             --disable-xsdl \
             --disable-xfake \
             $(build_xfbdev) \
             --disable-kdrive-vesa \
             --disable-lbx \
             --disable-xprint \
             --disable-xorgconfig \
             --disable-xorgcfg \
             --with-xkb-path=/usr/share/X11/xkb \
             --with-xkb-output=/var/lib/xkb \
             --enable-xfree86-utils \
             --with-os-vendor="$(VENDOR)" \
             --with-builderstring="$(SOURCE_NAME) $(SOURCE_VERSION)
             ($(BUILDER))" \
             --with-int10=x86emu \
             --enable-config-dbus \
             --enable-dri2

Bryce