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Re: Is a faithful HTTP/2 response scheduler necessarily O(n) in the worst case?

Kazu Yamamoto ( 山本和彦 ) <kazu@iij.ad.jp> Tue, 24 January 2017 22:58 UTC

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To: ietf-http-wg@w3.org
From: Kazu Yamamoto <kazu@iij.ad.jp>
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Subject: Re: Is a faithful HTTP/2 response scheduler necessarily O(n) in the worst case?
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Hi Tom,

>> http://www.mew.org/~kazu/material/2015-http2-priority2.pdf
>> http://www.mew.org/~kazu/doc/paper/http2-haskell-2016.pdf
> 
> Thanks. IIUC, the algorithms described in both links are still at least
> O(depth), which can be O(n) for dependency trees generated by certain
> clients such as Chrome.

Yes. Your understanding is correct.

If a browser creates a list-like tree, I think it is misuse of priority.
And servers should limit the depth of trees.

--Kazu

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