Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: Crusoe's performance on linux? | Date | 25 Jun 2003 20:39:32 -0700 |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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