[syslinux] Syslinux 4.04 gpxelinux.0 http performance problem with VMware VMs

[Pasi Kärkkäinen]

On Sun, Sep 16, 2012 at 09:43:18AM -0700, H. Peter Anvin wrote:
> On 09/16/2012 06:30 AM, Pasi Kärkkäinen wrote:
> >
> >My testing was performed in a single subnet, so no routing involved.
> >The web server was apache2 running on CentOS 5, and I was transferring
> >an image size of around 300 MB.
> >
> >I think the "poor" performance is because of the big amount of retransmits that
> >I'm seeing with syslinux pxe. When benchmarking the same setup/VMs from Linux
> >I get almost wirespeed and no restransmits..
> >
> >Something in syslinux pxe stuff is causing those retransmits/drops..
> >
> 
> gPXE is extremely sensitive to packet reordering.  I think iPXE
> might be better.  pxelinux-lwip (i.e. pxelinux.0 from
> syslinux-4.10-pre*) should be even better than that.
> 
> Would you might trying those out?
> 

Sorry, the subject is a bit misleading.
I already earlier switched to pxelinux.0 from syslinux-4.10-pre20.

I probably should try the latest 4.10-pre though.

-- Pasi