[gPXE] Painfully slow Windows 7 booting over gPXE

[Andrey Kuzmin]

> This is usually done with WireShark or tcpdump.

Thanks  for  your  reply. I've configured port mirroring on switch and
made  a  dump in wireshark - http://ftp.binitex.com/win7.loading.zip .
I've  also commented DNS and router options in dhcpd.conf before doing
this dump.

Few details:

192.168.1.175 - this is iSCSI/DHCP server
192.168.1.20 - workstation which boots Win7 x86 from iSCSI

Some time lines in dump (very approximate):

+100 seconds - gPXE text dissapeared, black screen
+180 seconds - Starting Windows text appeared
+545  seconds  -  Windows  logo  appears and then boot process is very
fast, so I've turned capturing off