Re: Crusoe's performance on linux?

Samphan Raruenrom
2003-06-23T18:42:28Z

Vojtech Pavlik wrote:
> On Mon, Jun 23, 2003 at 10:58:12AM +0700, Samphan Raruenrom wrote:
>>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.
> Desktop - 1.1 GHz Athlon Tbird 512M RAM, using disk -> 3.7 min
> This is with gcc 2.95.2, which may give it an unfair advantage, though.
> Or is something else wrong here?

Both use gcc 3.2. The desktop pentium III is very old. Slow ram/bus may
be the
reason. Or this may be the fastest a pentium iii 1 MHz can perform?.
Large RAM don't help pentium III. It doesn't need them here.
Large RAM should help Cursoe a lot. CMS should use those RAM as traslation
cache and put the entire processes (make, gcc, as) in it.
I guess 17.x min kernel compile time result from CMS still taking time
interpreting x86
code (because it decide to do so to conserve translation cache space?).
I wish the linux kernel could hint CMS to do a better job, if possible, like
when to interpret, translate or fully optimize and save-to-disk for
later use.