Re: HTTP/3 Prioritization Proposal

On Wed, Jan 30, 2019 at 12:07:14PM +0900, Lucas Pardue wrote:
> With H3 we need to be slightly careful, IMO requests will be
> handled in the order of (received  + QPACK dependencies resolved).

This is a good point and something to keep in mind.

> The number of placeholders is a QUIC varint. The number of requests
> in a connection is limited by stream ID ( varint modulo 4). It
> might be possible to implement a Dmitri's tree design bit whether
> is logical is a different question...

By "Dmitri's tree design," do you mean "keeping a placeholder between
streams in the priority tree?"

I did think about what clients may use placeholders for when I was
writing the priority tree code and I realized that the recommended
value of 16 may be too low; you want something like 1:2 or even 1:1
placeholder/stream ratio.  Thus, we have a default of 50 instead
of 16.

I have been meaning to write up my thoughts on the matter, but
haven't gotten around to it yet.

  - Dmitri.


Received on Wednesday, 30 January 2019 16:49:54 UTC