[ipxe-devel] Tftp transfer speed issues

Christian Hesse list at eworm.de
Tue Aug 7 11:02:42 UTC 2012

Robin Smidsrød <robin at smidsrod.no> on Tue, 2012/08/07 12:39:
> On 07.08.2012 11:22, Alpar Torok wrote:
> > I saw an issue with PXE booting winpe with bootmgr.exe over tftp.
> > The wim image takes a lot of time to load. With iPXE it takes about 7
> > minutes,
> > while with pxelinux.0  it loads in about 2,  on the same setup.
> > gPXE takes way more, 30 minutes!
> > 
> > Does anybody have a clue on why that  is?
> > Is this a known issue/ missing feature that pxelinux has ?
> Have you been using the most recent checkout from git when building the
> iPXE binary? The last few weeks have seen some substantial TCP/IP
> improvements.

TFTP is UDP/IP, so this should not have any affect. TFTP has bad performance
in general, but there should not be such a big difference...
main(a){char*c=/*    Schoene Gruesse                         */"B?IJj;MEH"
"CX:;",b;for(a/*    Chris           get my mail address:    */=0;b=c[a++];)
putchar(b-1/(/*               gcc -o sig sig.c && ./sig    */b/42*2-3)*42);}

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