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	<title>Comments on: Serious Performance Regression in Firefox 18 and newer</title>
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	<link>http://blog.concord.org/serious-performance-regression-in-firefox-18-and-newer</link>
	<description>Revolutionary digital learning for science, math and engineering</description>
	<lastBuildDate>Thu, 16 May 2013 19:24:36 +0000</lastBuildDate>
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		<title>By: Stephen Bannasch</title>
		<link>http://blog.concord.org/serious-performance-regression-in-firefox-18-and-newer#comment-12138</link>
		<dc:creator>Stephen Bannasch</dc:creator>
		<pubDate>Mon, 13 May 2013 16:37:04 +0000</pubDate>
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		<description><![CDATA[Hi Steven,

Recently Firefox developers have been making changes to improve the SVG performance issue.

So far these issues are only available in the Nightly versions of Firefox.

On Firefox v20 on my computer that example from Mike Bostock takes almost 60s to settle down.

However on Firefox 23.0a1 (2013-05-13) (the latest Nightly release) it talkes only about 12s to settle down.

For comparison on Chrome v25 it takes about 6s.

So it looks like when v23 is released the performance issues should be better.]]></description>
		<content:encoded><![CDATA[<p>Hi Steven,</p>
<p>Recently Firefox developers have been making changes to improve the SVG performance issue.</p>
<p>So far these issues are only available in the Nightly versions of Firefox.</p>
<p>On Firefox v20 on my computer that example from Mike Bostock takes almost 60s to settle down.</p>
<p>However on Firefox 23.0a1 (2013-05-13) (the latest Nightly release) it talkes only about 12s to settle down.</p>
<p>For comparison on Chrome v25 it takes about 6s.</p>
<p>So it looks like when v23 is released the performance issues should be better.</p>
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		<title>By: Steven Wood</title>
		<link>http://blog.concord.org/serious-performance-regression-in-firefox-18-and-newer#comment-12136</link>
		<dc:creator>Steven Wood</dc:creator>
		<pubDate>Sat, 11 May 2013 09:07:34 +0000</pubDate>
		<guid isPermaLink="false">http://blog.concord.org/?p=2173#comment-12136</guid>
		<description><![CDATA[You can see the poor performance of FF SVG here : 

http://bl.ocks.org/mbostock/950642

It works great on IE9+, Chrome - but on FF 20 it is so slow as to be almost unusable.  I would assume when this demo was created it probably worked on the then current version of FF ?]]></description>
		<content:encoded><![CDATA[<p>You can see the poor performance of FF SVG here : </p>
<p><a href="http://bl.ocks.org/mbostock/950642" rel="nofollow">http://bl.ocks.org/mbostock/950642</a></p>
<p>It works great on IE9+, Chrome &#8211; but on FF 20 it is so slow as to be almost unusable.  I would assume when this demo was created it probably worked on the then current version of FF ?</p>
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