[yocto] Building on target

[Rick Bianchi]

If I have time today I will try to reproduce your results. If not, I will
get to it first thing next week and post my result.

Thanks,
Rick


On Fri, Mar 14, 2014 at 7:38 AM, Gary Thomas <gary at mlbassoc.com> wrote:

> On 2014-03-12 13:11, Rick Bianchi wrote:
> > usbip from /usr/src/kernel/drivers/staging/usbip
>
> I finally managed to make this comparison.  I did this by taking my
> Poky/Yocto
> built system for a i.MX6 system (ARM Cortex-A9) and replaced the rootfs
> with
> one for the Gumstix Overo (linaro).  The results were nothing like yours,
> so
> it's a bit confusing.
>
> I actually built an entire Linux kernel - not just the one directory you
> mentioned.
>
> Poky/Yocto - 37 minutes
> Linaro     - 48 minutes
>
> There is some flex in these numbers as they were on different [brand] SD
> cards, etc,
> but I sure did not see the "5 minutes for Linaro vs 24 hours on Yocto"
> that you reported.
>
> Perhaps the only thing I did differently was I added the SDK tools to my
> Yocto system
> using these meta-packages instead of the list you used.
>   packagegroup-core-sdk packagegroup-core-standalone-sdk-target
>
> You might try that to see if it makes any difference.
>
> n.b. part of what took me so long to get these results is I was trying to
> run this test
> on something closer to your Overo board.  I have an older OMAP DM3730
> board here that I
> tried to do these same steps, but it was unstable and I could not get the
> Linaro based
> file system to work at all.  Very strange.  In any case, I think the
> comparison I did get
> with the i.MX6 is valid.
>
> > On Wed, Mar 12, 2014 at 11:44 AM, Gary Thomas <gary at mlbassoc.com<mailto:
> gary at mlbassoc.com>> wrote:
> >
> >     On 2014-03-12 10:09, Rick Bianchi wrote:
> >     > I completely agree with regards to the comparison, but I have
> compiled the same exact source on the same target (arm) and it only took 5
> minutes when running the Linaro image.
> >     >
> >     > To clarify, the only difference is the build, one is Linaro (took
> 5 minutes to compile source on the target) and the other Yocto (took almost
> 24 hours to compile source on the target).
> >
> >     Sorry, I missed that this was on the same hardware.
> >
> >     What are you building?  I'm going to try and duplicate this here
> >     on hardware I have that's quite similar to your Gumstix board.
> >
> >     >
> >     > Is there something that I am missing?
> >     >
> >     >
> >     > On Wed, Mar 12, 2014 at 8:28 AM, Gary Thomas <gary at mlbassoc.com<mailto:
> gary at mlbassoc.com> <mailto:gary at mlbassoc.com <mailto:gary at mlbassoc.com>>>
> wrote:
> >     >
> >     >     On 2014-03-12 09:15, Rick Bianchi wrote:
> >     >     >
> >     >     > I have the gumstix-console-image with the added packages
> below. When I compile on the target is take a very long time for it to
> complete, over 24 hours. I have compiled the same
> >     >     > code on the same target, but running Linaro image, and it
> only takes a few minutes. Is there another recipe that I need to add to the
> build to speed up compiling?
> >     >
> >     >     Doubtful.  The reason your build on the target takes so long
> is merely
> >     >     one of horsepower - that little ARM processor just doesn't
> have it, especially
> >     >     if you are comparing it to a typical desktop environment.
> >     >
> >     >     > EXTRA_IMAGE_FEATURES += "dev-pkgs"
> >     >     > IMAGE_INSTALL_append =" autoconf"
> >     >     > IMAGE_INSTALL_append =" autofs"
> >     >     > IMAGE_INSTALL_append =" automake"
> >     >     > IMAGE_INSTALL_append =" ccache"
> >     >     > IMAGE_INSTALL_append =" chkconfig"
> >     >     > IMAGE_INSTALL_append =" dbus-glib"
> >     >     > IMAGE_INSTALL_append =" gcc"
> >     >     > IMAGE_INSTALL_append =" glib-2.0"
> >     >     > IMAGE_INSTALL_append =" glib-networking"
> >     >     > IMAGE_INSTALL_append =" glibmm"
> >     >     > IMAGE_INSTALL_append =" packagegroup-core-buildessential"
> >     >     > IMAGE_INSTALL_append =" pciutils"
> >     >     > IMAGE_INSTALL_append =" pkgconfig"
> >     >     > IMAGE_INSTALL_append =" python-scons"
> >     >     > IMAGE_INSTALL_append =" systemd-compat-units"
> >     >     > IMAGE_INSTALL_append =" sysfsutils"
> >     >     > IMAGE_INSTALL_append =" tcp-wrappers"
> >     >     > IMAGE_INSTALL_append =" usbutils"
> >     >     > IMAGE_INSTALL_append =" util-macros"
>
> --
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
> --
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