Linus Torvalds wrote:
>
>
> On Tue, 12 Dec 2006, Johannes Schindelin wrote:
>> On Tue, 12 Dec 2006, Nicolas Pitre wrote:
>>
>>> On Tue, 12 Dec 2006, Johannes Schindelin wrote:
>>>
>>>> But it would become a non-problem when the HTTP transport would learn
>>>> to read and interpret the .idx files, basically constructing thin
>>>> packs from parts of the .pack files ("Content-Range:" comes to
>>>> mind)...
>>>
>>> Woooh.
>>
>> Does that mean "Yes, I'll do it"? ;-)
>
> Umm. I hope it means "Woooh, that's crazy talk".
>
> You do realize that then you need to teach the http-walker about walking
> the delta chain all the way up? For big pulls, you're going to be a lot
> _slower_ than just downloading the whole dang thing, because the delta
> objects are often just ~40 bytes, and you've now added a ping-pong latency
> for each such small transfer.
>
> You don't need to download many such small ranges, and suddenly the few
> hundred ping-pongs that got you a few tens of kB of data took longer than
> just downloading a big stream efficiently that got you everything.
While I think the problem is much better solved by having "archive" pack(s)
and "current" pack, perhaps with always sownloading the whole delta it
would be feasible?
--
Jakub Narebski
Warsaw, Poland
ShadeHawk on #git
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