Re: [Editorial Errata Reported] RFC7540 (4871)
Mark Nottingham <mnot@mnot.net> Fri, 09 December 2016 03:37 UTC
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From: Mark Nottingham <mnot@mnot.net>
In-Reply-To: <20161130043354.C786DB81319@rfc-editor.org>
Date: Fri, 09 Dec 2016 14:35:24 +1100
Cc: mike@belshe.com, fenix@google.com, Martin Thomson <martin.thomson@gmail.com>, ben@nostrum.com, alissa@cooperw.in, aamelnikov@fastmail.fm, pmcmanus@mozilla.com, ietf-http-wg@w3.org
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Subject: Re: [Editorial Errata Reported] RFC7540 (4871)
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RFC Editor, this errata is REJECTED. Cheers, > On 30 Nov. 2016, at 3:33 pm, RFC Errata System <rfc-editor@rfc-editor.org> wrote: > > The following errata report has been submitted for RFC7540, > "Hypertext Transfer Protocol Version 2 (HTTP/2)". > > -------------------------------------- > You may review the report below and at: > http://www.rfc-editor.org/errata_search.php?rfc=7540&eid=4871 > > -------------------------------------- > Type: Editorial > Reported by: Martin Thomson <martin.thomson@gmail.com> > > Section: 5.3.4 > > Original Text > ------------- > For example, assume streams A and B share a parent, and streams C > and D both depend on stream A. Prior to the removal of stream A, > if streams A and D are unable to proceed, then stream C receives > all the resources dedicated to stream A. If stream A is removed > from the tree, the weight of stream A is divided between streams > C and D. If stream D is still unable to proceed, this results in > stream C receiving a reduced proportion of resources. For equal > starting weights, C receives one third, rather than one half, of > available resources. > > Corrected Text > -------------- > For example, assume streams A and B share a parent, and streams C > and D both depend on stream A. When A is complete, streams C and > D receive all the resources that would be allocated to stream > A. If stream D is unable to proceed, stream C shares resources > with stream B. Assuming equal starting weights on all streams, > this means that streams B and C receive an equal share. However, > if stream A is removed from the tree, the weight of stream A is > divided between streams C and D. With stream A removed and stream > D unable to proceed, stream C receives a reduced proportion of > resources. For equal starting weights, C receives one third, > rather than one half, of available resources. > > Notes > ----- > The example was incorrect. Dependent streams do not receive resources if their parent is blocked; they only receive resources once the parent is complete. > > Note that I didn't correct the common misunderstanding regarding the third here. That might be further improved by doing the math. That is: > > Before removal: A=N (C=N, D=N), B=N; > After removal: B=N, C=N/2, D=N/2; > Therefore viable streams are B=N and C=N/2 meaning a total pool of 3N/2. The resource proportion allocated to C is therefore (N/2)/(3N/2)=1/3. > > But that would probably need an entire section for the example, rather than a single paragraph. > > Instructions: > ------------- > This erratum is currently posted as "Reported". If necessary, please > use "Reply All" to discuss whether it should be verified or > rejected. When a decision is reached, the verifying party > can log in to change the status and edit the report, if necessary. > > -------------------------------------- > RFC7540 (draft-ietf-httpbis-http2-17) > -------------------------------------- > Title : Hypertext Transfer Protocol Version 2 (HTTP/2) > Publication Date : May 2015 > Author(s) : M. Belshe, R. Peon, M. Thomson, Ed. > Category : PROPOSED STANDARD > Source : Hypertext Transfer Protocol Bis APP > Area : Applications > Stream : IETF > Verifying Party : IESG > -- Mark Nottingham https://www.mnot.net/
- [Editorial Errata Reported] RFC7540 (4871) RFC Errata System
- Re: [Editorial Errata Reported] RFC7540 (4871) Cory Benfield
- Re: [Editorial Errata Reported] RFC7540 (4871) Martin Thomson
- Re: [Editorial Errata Reported] RFC7540 (4871) Benedikt Christoph Wolters
- Re: [Editorial Errata Reported] RFC7540 (4871) Amos Jeffries
- Re: [Editorial Errata Reported] RFC7540 (4871) Cory Benfield
- Re: [Editorial Errata Reported] RFC7540 (4871) Cory Benfield
- Re: [Editorial Errata Reported] RFC7540 (4871) Cory Benfield
- Re: [Editorial Errata Reported] RFC7540 (4871) Kazuho Oku
- Re: [Editorial Errata Reported] RFC7540 (4871) Cory Benfield
- Re: [Editorial Errata Reported] RFC7540 (4871) Kazuho Oku
- Re: [Editorial Errata Reported] RFC7540 (4871) Benedikt Christoph Wolters
- Re: [Editorial Errata Reported] RFC7540 (4871) Cory Benfield
- Re: [Editorial Errata Reported] RFC7540 (4871) Tatsuhiro Tsujikawa
- Re: [Editorial Errata Reported] RFC7540 (4871) Stefan Eissing
- Re: [Editorial Errata Reported] RFC7540 (4871) Ryan Hamilton
- Re: [Editorial Errata Reported] RFC7540 (4871) laike9m
- RE: [Editorial Errata Reported] RFC7540 (4871) Mike Bishop
- Re: [Editorial Errata Reported] RFC7540 (4871) Martin Thomson
- Re: [Editorial Errata Reported] RFC7540 (4871) Kazuho Oku
- Re: [Editorial Errata Reported] RFC7540 (4871) Martin Thomson
- Re: [Editorial Errata Reported] RFC7540 (4871) Patrick McManus
- Re: [Editorial Errata Reported] RFC7540 (4871) Mark Nottingham
- Re: [Editorial Errata Reported] RFC7540 (4871) Martin Thomson
- Re: [Editorial Errata Reported] RFC7540 (4871) Mark Nottingham