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    From
    SubjectRe: Crusoe's performance on linux?
    Date
    Followup to:  <3EF67AD4.4040601@thai.com>
    By author: Samphan Raruenrom <samphan@thai.com>
    In newsgroup: linux.dev.kernel
    >
    > Vojtech Pavlik wrote:
    > > Could you a test just for me? Take vanilla 2.4.21 and then
    > > make oldconfig; make dep; time make bzImage
    > > That's basically what I want to know how long will take, since
    > > it's one of the most common time consuming tasks the thing will
    > > have to handle.
    > Done! Here're the results:-
    >
    > Desktop - Pentium III 1 G Hz 754 MB -> 10.x min.
    > Tablet PC - Crusoe TM5800 1 GHz 731 MB -> 17.x min.
    >
    > From freshdiagnos benchmack, the TPC has about 2x faster RAM.
    > I use tmpfs for the whole process so disk speed didn't count.
    > Both test run without X or any foreground process using
    > 2.4.21-ac1 and RedHat kernel.
    >

    For what it's worth, we have been completely unable to reproduce these
    kinds of results at Transmeta; our results are in fact very consistent
    with the numbers reported by some people for the Sharp MM-10 "Kitty"
    which is also a 1 GHz TM5800; all of them have been in the 10 minute
    ballpark.

    I have written a script to try to give a consistent compile benchmark;
    however, one still needs to make sure that DMA is turned on (hdparm -d
    /dev/hda); obviously, the compiler etc should not be on NFS.

    The timed portion (make -j3 bzImage) part of this script takes
    10m15.035s real time (user 9m10.890s, sys 0m43.350s) on my 1067 MHz
    Crusoe prototype system (256MB SDR, 256MB DDR, ATA33 disk) -- don't
    have TC1000 Tablet PC numbers yet, but I have asked someone to run it
    -- running RedHat 9 including distro kernel and gcc 3.2.2. It
    produced a bzImage file that's 1151608 bytes long when I ran it.

    Note that it uses "make -j3" for the bzImage, and so aren't really
    comparable to your times listed above.

    You obviously need to point the KERNEL variable at a suitable copy of
    linux-2.4.21.tar.gz. The script needs to run as root in order to
    create the tmpfs.

    -hpa
    --
    <hpa@transmeta.com> at work, <hpa@zytor.com> in private!
    "Unix gives you enough rope to shoot yourself in the foot."
    Architectures needed: ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64
    -
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