speeding up pxe netboot
Anton Yuzhaninov
citrin+bsd at citrin.ru
Fri Mar 3 01:22:23 UTC 2017
On 03/02/17 15:13, Mike Tancsa wrote:
> The slow part seems to be on the boot up from
> /boot/kernel/kernel text=0x1532060 \
....
> Nothing in the tcpdumpd jumps out
>
> 12:08:23.719761 IP 10.0.0.42.987 > 10.0.0.1.2049: NFS request xid 738
> 104 lookup fh
> Unknown/888D10CADE13D1BC0A0018680400000059813E000000000000000000
> "kernel"
> 12:08:23.719924 IP 10.0.0.1.2049 > 10.0.0.42.987: NFS reply xid 738
> reply ok 236 lookup fh
> Unknown/888D10CADE13D1BC0A00018004000000568B3E000000000000000000
1. May be there a big delay after tftp request for pxeboot and starting
NFS transfer? Try to check tcpdump starting from dhcp/pxe requests.
2. Try to increase nfs.read_size, see pxeboot(8).
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