[yocto] Building on target

Rick Bianchi bianchirickkutta at gmail.com
Tue Mar 18 10:48:16 PDT 2014


Gary,
I noticed during the make the it was complaining about the date being in
the future; I checked and sure thing the date and time were bit off, about
14 years. I set it to the correct time  with "date --set="18 MARCH 2014
10:32:00" and the build completed in under 10 mins.


On Fri, Mar 14, 2014 at 3:16 PM, Gary Thomas <gary at mlbassoc.com> wrote:

> On 2014-03-14 08:49, Rick Bianchi wrote:
> > 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.
>
> One thing I forgot to point out is I used the identical kernel+modules for
> both setups.  I would be interested to see if that makes any difference for
> you.  I can't fully test it as my board doesn't have a Linaro kernel.
>
> So there are four combinations - I only tried the first two:
>   Yocto kernel + Yocto rootfs
>   Yocto kernel + Linaro rootfs
>   Linaro kernel + Yocto rootfs
>   Linaro kernel + Linaro rootfs
>
> > On Fri, Mar 14, 2014 at 7:38 AM, Gary Thomas <gary at mlbassoc.com <mailto:
> 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> <mailto: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>> <mailto: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
> >     ------------------------------------------------------------
> >     --
> >     _______________________________________________
> >     yocto mailing list
> >     yocto at yoctoproject.org <mailto:yocto at yoctoproject.org>
> >     https://lists.yoctoproject.org/listinfo/yocto
> >
> >
> >
> >
>
> --
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
> --
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