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Re: i386 compatibility & libstdc++



On Sat, Apr 26, 2003 at 02:23:03PM +0200, José Luis Tallón wrote:
> At 19:55 26/04/2003 +1000, you wrote:
> >On Sat, Apr 26, 2003 at 09:41:14AM +0200, Andreas Metzler wrote:
> >> 1a. create a stripped down version for i386, i.e. required/important
> >>     and go for i486.
> >
> >Is there much performance improvement in dropping i386 in favour of
> >i486+?
> 
> - Integrated math coprocessor ( why does libc still check for its 
> availability? )
> - Cache ( very much needed, i mught add )
> - Pipeline "attempt" IIRC
> - Mandatory 32bits Bus/Memory
> 
> IMHO, since we have concluded there are almost NO "true i386" around ( not 
> even for routers ),

Here is an extract of recent boot messages from one such animal:

Apr 22 23:27:43 debian kernel: Linux version 2.4.18 (root@emac140) (gcc version 2.95.4 (Debian prerelease)) #1 fre mar 22 02:53:42 CET 2002
[...]
Apr 22 23:27:43 debian kernel: Kernel command line: auto BOOT_IMAGE=Linux ro root=301 ether=10,0x300,eth0 ether=9,0x240,eth1
Apr 22 23:27:43 debian kernel: Console: colour VGA+ 80x25
Apr 22 23:27:43 debian kernel: Calibrating delay loop... 3.62 BogoMIPS
[...]
Apr 22 23:27:45 debian kernel: CPU: 386

Running Woody and acting as a router. There might be more of them than
you think. A stripped down version of i386 might actually be a
good thing for those of us who still uses 386 machines (with
comparably small HD:s)

1a seems appropriate.

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