AltiVec Kernel Enhancements from MOT
bruce woller
yellowdog-general@lists.terrasoftsolutions.com
Thu Jun 5 20:12:01 2003
Hi Nathan:
This announcement describes two standard 'c' libraries that are used
extensively with any TCP/IP transaction. Each TCP packet must be
verified via checksum, the address decoded and the payload copied to
memory. Currently this is done via basic integer arithmetic with the
Linux TCP/IP stack. Motorola has re-written string.S (memcmp,
memcpy, memset etc) and checksum.S in assembler language to take
advantage of the AltiVec vector processing capability in the PPC G4
chips. Many switch, hub and router manufacturers use PPC G4 chips as
the embedded processor in their device. Also many use RTL Linux (Real
TIme Linux) as the operating system. Since most of these devices use
TCP/IP as their basic transmission protocol if the basic packet
validation and move can be done in parallel (vectored) the overall
throughput will increase. What this means to YDL and desktop Linux you
will need to ask Mr. Burcaw if it is possible to replace the current
glibc modules with the AltiVec enabled modules on systems that have
AltiVec (mine doesn't).
Hope this is not too vague,
bruce
On Thursday, June 5, 2003, at 07:07 PM, nathan r. hruby wrote:
>
> Anyone see this who can actually tell me what this is / means?
>
> http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/
> story/06-05-2003/0001959749&EDATE=
>
> -n
> --
> ----------------------------------------
> nathan hruby <nathan@drama.uga.edu>
> computer services specialist
> uga drama & theatre
> reality is a moving target
> ----------------------------------------
>
>
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