Finished testing a small patch: https://bugs.webkit.org/show_bug.cgi?id=54108
It only prioritizes
This thread is wrong for webkit-dev. The discussion obliquely related to WebKit
development and you are not yet contributors to the WebKit project yet. Could
you please find somewhere else to discuss this?
-- Darin
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webk
Let's take each argument apart one by one:
1. If the plugin, W3 Total Cache for WordPress, by itself moves the
script loads after the main content, there will be no visible change
using heuristic.
1a. In the plugin installation guide, the developers advise on either
using a CDN or "static.*" subd
Sorry - the WordPress plugin is W3 Total Cache, not W3 Super Cache. I always
get those names scrambled.
Jerry
On Feb 8, 2011, at 10:40 AM, Jerry Seeger wrote:
> I'm still fiddling with the scripts on muddledramblings.com after a redesign,
> but I intend to move static resources to a cookieless
I'm still fiddling with the scripts on muddledramblings.com after a redesign,
but I intend to move static resources to a cookieless domain to improve
performance. This is a petty common tactic - sort of a poor man's CDN. The key
is that I can decide to do this. (Yes, I could rearrange my site an
Indeed, the test case just shows the general problem.
It should be changed to include scripts/css sourced from different
places: same-subdomain, same-domain, cross-domain, CDN.
Of course, right now there will be no difference between those.
The bug you filed considers the same problem from another
Do you have any example of scripts or css that are externally sourced,
and where developer cares to reasonably optimize the web page?
The main use case of such external scripts currently is ads and
statistics gatherers for analysis. This, arguably, is not critical
content that the user is intereste
My argument is less "it's the Web developer's fault" than it is "the Web
developer should have control." I am hardly a sophisticated Web developer but I
have javascript from a different domain that must be loaded first and I have
Google analytics, which I should load after the rest of the page
Your test case isn't really about prioritization. The HTML5 spec
defines very specifically when parsing must stop. The two main cases
are:
1. Waiting for an external script to download
2. Waiting for an external stylesheet to download when any script
block is reached
In these cases, the parser doe
This argument - "web developer is to blame for choosing a slow
ad/tracking/etc server" - is incorrect.
Web developers in general do not have any control over the ad provider
or, frankly, any other type of external functionality provider.
Google Analytics being a good point in case, you would not wa
I'm reasonably sure that javascript in the header must be loaded synchronously,
as it might affect the rest of the load. This is why tools like YSlow advise
Web designers to move javascript loads that are not needed for rendering until
after the rest of the page loads.
Blocking on loading the c
IE/Opera are delaying only for 4 seconds, same as Mobile Safari
The reason looks to be the url for the script/css.
If the url is the same twice, Chrome/Firefox serializes the requests,
while IE/Opera/MobileSafari launches both requests simultaneously.
Of course, requesting simultaneously doesn't f
On Mon, Feb 7, 2011 at 12:32 PM, Adam Barth wrote:
> There is no PerformanceTest framework that deals with network latency.
> Please feel encouraged to build one. :)
Note that http://code.google.com/p/web-page-replay/ was created with
this goal (to simulate realistic network behavior).
http://c
On Mon, Feb 7, 2011 at 12:18 PM, Silvio Ventres
wrote:
> The function doesn't seem to get any information regarding domain the
> resource is hosted at.
>
> Calling some kind of setResourceDomainType() to set DOMAIN_TYPE to
> enum(0=main domain, 1=subdomain within same domain, 2=CDN, 3=external
> d
The function doesn't seem to get any information regarding domain the
resource is hosted at.
Calling some kind of setResourceDomainType() to set DOMAIN_TYPE to
enum(0=main domain, 1=subdomain within same domain, 2=CDN, 3=external
domain) and then providing that as an additional parameter to
defaul
The default prioritization is found here:
http://trac.webkit.org/browser/trunk/Source/WebCore/loader/cache/CachedResource.cpp#L51.
There are cases where we override this (e.g., I'm pretty sure we load
favicons at a lower priority than other images)
On Mon, Feb 7, 2011 at 11:44 AM, Adam Barth wrot
There is already some amount of code that's involved with prioritizing
subresource loads. See
http://trac.webkit.org/browser/trunk/Source/WebCore/loader/ResourceLoadScheduler.h
and
http://trac.webkit.org/browser/trunk/Source/WebCore/loader/cache/CachedResourceLoader.h.
I suspect the prioritizati
Hello.
Can someone point where in the source code is the implementation of
the subresources loading and some documentation regarding its
implementation - as a queue or just child-threads or async functions?
The reason is that the current subresource loading seems to lack any
prioritization and it
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