[yocto] Building on target
Rick Bianchi
bianchirickkutta at gmail.com
Tue Mar 18 11:05:15 PDT 2014
Got it.
On Tue, Mar 18, 2014 at 10:55 AM, Gary Thomas <gary at mlbassoc.com> wrote:
> On 2014-03-18 11:49, Rick Bianchi wrote:
> > Should have noted, that the date and time reset on every reboot?
>
> Unless you have a battery backed up clock device, e.g. Dallas RTC,
> this will happen. If you shut your Yocto system down properly, e.g.
> using '# reboot', it will keep track of when you shut down and then
> set the clock to that time when you reboot. Without a true RTC, there's
> little else that it can do unless you run NTP and get the time from some
> external server.
>
> > On Tue, Mar 18, 2014 at 10:48 AM, Rick Bianchi <
> bianchirickkutta at gmail.com <mailto:bianchirickkutta at gmail.com>> wrote:
> >
> > 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<mailto:
> 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> <mailto: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>> <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 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>>> <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 <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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> > > yocto at yoctoproject.org <mailto:yocto at yoctoproject.org>
> <mailto:yocto at yoctoproject.org <mailto:yocto at yoctoproject.org>>
> > > https://lists.yoctoproject.org/listinfo/yocto
> > >
> > >
> > >
> > >
> >
> > --
> > ------------------------------------------------------------
> > 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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