Slow PXE boot

[Mateusz Guzik]

If memory serves the slowdown occured past the rewrite, so bisecting
wont get you far. I don't know what the difference is internally
though.

On 2/25/20, Bjoern A. Zeeb <bzeeb-lists at lists.zabbadoz.net> wrote:
> On 25 Feb 2020, at 21:02, Bjoern A. Zeeb wrote:
>
>> On 25 Feb 2020, at 20:57, Hiroki Sato wrote:
>>
>> Hi,
>>
>>> Michio Honda <micchie.gml at gmail.com> wrote
>>>   in
>>> <CA+Sc9E0NNi8ViwXCn-Hif2_RQOnu11RLEMRUT2kOAaouLNySvQ at mail.gmail.com>:
>>>
>>> mi> Hi,
>>> mi>
>>> mi> I had a similar problem before, and the solution was the use of
>>> pxeboot
>>> mi> file taken from FreeBSD 10 as suggested by Hiroki.
>>>
>>>  I could not reproduce this by using my boxes after all, but
>>> replacing
>>>  pxeboot with the older one was useful to gain the normal speed at
>>>  that time probably because of difference between new (11 or later)
>>>  loader's nfs client and the old one.  It was a problem sending a lot
>>>  of duplicated packets for some reason, not just a matter of the
>>>  buffer size.  And the server side was Linux.
>>>
>>>  Have anyone else also experienced this kind of very slow PXE
>>> booting?
>>>  It may be specific to using a Linux NFS server.
>>
>> I see it on zoo all day long for ages.  I’ll go back and try an old
>> pxeboot; if that really speeds things up massively I might even be
>> willing to debug this a bit more.
>
> I found a pxeboot from FreeBSD 7 and while it did not entirely work the
> kernel was loaded in seconds rather than minutes (felt).
>
> I guess it’s time to dig into the changes from back then..
>
> /bz
> _______________________________________________
> freebsd-hackers at freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> To unsubscribe, send any mail to "freebsd-hackers-unsubscribe at freebsd.org"
>


-- 
Mateusz Guzik <mjguzik gmail.com>