[whatwg] Worker feedback

Jeremy Orlow jorlow at google.com
Thu Apr 2 13:02:59 PDT 2009

On Tue, Mar 31, 2009 at 9:57 PM, Drew Wilson <atwilson at google.com> wrote:

> On Tue, Mar 31, 2009 at 6:25 PM, Robert O'Callahan <robert at ocallahan.org>wrote:
>>  We don't know how much (if any) performance must be sacrificed, because
>> no-one's tried to implement parallel cookie access with serializability
>> guarantees. So I don't think we can say what the correct tradeoff is.
> The spec as proposed states that script that accesses cookies cannot
> operate in parallel with network access on those same domains. The
> performance impact of something like this is pretty clear, IMO - we don't
> need to implement it and measure it to know it exists and in some situations
> could be significant.

I agree with everything Drew said, but I think think this one point really
needs to be singled out.  Cookies go across the wire.  Serializable
semantics are not possible in todays (latent) world.  Period.
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