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	<title>Comments on: looking at talos differently, part 2</title>
	<atom:link href="http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/feed/" rel="self" type="application/rss+xml" />
	<link>http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/</link>
	<description>Improving performance at Mozilla</description>
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		<title>By: looking at talos differently, part 3 &#171; Nathan&#039;s Blog</title>
		<link>http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/#comment-557</link>
		<dc:creator>looking at talos differently, part 3 &#171; Nathan&#039;s Blog</dc:creator>
		<pubDate>Sat, 06 Oct 2012 13:30:48 +0000</pubDate>
		<guid isPermaLink="false">http://blog.mozilla.org/nfroyd/?p=103#comment-557</guid>
		<description><![CDATA[[...] few thoughts from several days of staring at these charts; I&#8217;m going to focus on the tests that generate the most email.  Because Talos generates so [...]]]></description>
		<content:encoded><![CDATA[<p>[...] few thoughts from several days of staring at these charts; I&#8217;m going to focus on the tests that generate the most email.  Because Talos generates so [...]</p>
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		<title>By: glandium</title>
		<link>http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/#comment-555</link>
		<dc:creator>glandium</dc:creator>
		<pubDate>Sat, 06 Oct 2012 06:26:16 +0000</pubDate>
		<guid isPermaLink="false">http://blog.mozilla.org/nfroyd/?p=103#comment-555</guid>
		<description><![CDATA[The ranges associated to the number of constructors are almost always wrong, which I generically filed as bug 721387.]]></description>
		<content:encoded><![CDATA[<p>The ranges associated to the number of constructors are almost always wrong, which I generically filed as bug 721387.</p>
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		<title>By: Nathan Froyd</title>
		<link>http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/#comment-554</link>
		<dc:creator>Nathan Froyd</dc:creator>
		<pubDate>Sat, 06 Oct 2012 02:54:19 +0000</pubDate>
		<guid isPermaLink="false">http://blog.mozilla.org/nfroyd/?p=103#comment-554</guid>
		<description><![CDATA[Glad to see the visualizer is getting some comments!  I should write a post explaining things in a bit more detail; the graphserver ought to show all this stuff too...

1: Each colored block in a table corresponds to an email sent to dev-tree-management.  Whitespace is assumed to mean that there was no significant change for that platform over whatever range of changesets gets covered, given the lack of emails to dev-tree-management.

2: Correlating this with the graphserver would be useful.  Even just letting the individual changes link back to graphserver output.

3,4,5,7,9: Yeah, the UI could use some work/more information.

6: I am not that competent of an Ajax-y programmer.  (Yet?)

8: Yes to the first part; I don&#039;t understand the second question.]]></description>
		<content:encoded><![CDATA[<p>Glad to see the visualizer is getting some comments!  I should write a post explaining things in a bit more detail; the graphserver ought to show all this stuff too&#8230;</p>
<p>1: Each colored block in a table corresponds to an email sent to dev-tree-management.  Whitespace is assumed to mean that there was no significant change for that platform over whatever range of changesets gets covered, given the lack of emails to dev-tree-management.</p>
<p>2: Correlating this with the graphserver would be useful.  Even just letting the individual changes link back to graphserver output.</p>
<p>3,4,5,7,9: Yeah, the UI could use some work/more information.</p>
<p>6: I am not that competent of an Ajax-y programmer.  (Yet?)</p>
<p>8: Yes to the first part; I don&#8217;t understand the second question.</p>
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		<title>By: Nathan Froyd</title>
		<link>http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/#comment-553</link>
		<dc:creator>Nathan Froyd</dc:creator>
		<pubDate>Sat, 06 Oct 2012 02:45:14 +0000</pubDate>
		<guid isPermaLink="false">http://blog.mozilla.org/nfroyd/?p=103#comment-553</guid>
		<description><![CDATA[Yeah, I do not understand how the &quot;previous&quot; score for constructors is calculated.  Would have to go and look at the code.  It certainly doesn&#039;t encourage people to look at it when you tell them their changeset added .68 of a constructor.]]></description>
		<content:encoded><![CDATA[<p>Yeah, I do not understand how the &#8220;previous&#8221; score for constructors is calculated.  Would have to go and look at the code.  It certainly doesn&#8217;t encourage people to look at it when you tell them their changeset added .68 of a constructor.</p>
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		<title>By: sfink</title>
		<link>http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/#comment-552</link>
		<dc:creator>sfink</dc:creator>
		<pubDate>Fri, 05 Oct 2012 23:45:05 +0000</pubDate>
		<guid isPermaLink="false">http://blog.mozilla.org/nfroyd/?p=103#comment-552</guid>
		<description><![CDATA[Watch out, you&#039;re at risk of making Talos actually useful!

So I&#039;ll ask questions and make a bunch of requests to try to slow you down:

1. Is the changeset range a rollup, or the finest available granularity? (As in, does each range correspond to a interval between talos runs?)

2. I&#039;d like to be able to look at the table to find an interesting platform, then click on the platform heading to show a graph of just that platform over time. Maybe that points to the graph server with appropriate parameters? (I haven&#039;t looked at the graph server in ages, ever since I gave up on interpreting whatever the heck its mass of lines was trying to show me.)

3. I want to be able to feed in a changeset hash and have it highlight the row containing it on all graphs. (&quot;Did changeset X break/improve things?&quot;)

4. I&#039;d like push datetime ranges for the rev ranges.

5. DD/MM/YYYY sucks almost as much as MM/DD/YYYY. Pretty please use YYYY/MM/DD?

6. I sort of want to be able to star the big jumps (comment on them with any known explanation.) But that raises all kinds of issues

7. Is the final row a percent? If so, add a percent sign so I don&#039;t have to wonder.

8. White gaps mean talos was not run for anything in that changeset range? Then what does a multi-row cell just after a white gap mean?

9. Could you add a changeset count to the rows? Just to have a feel for whether it was a merge or individual change. I suppose it would be more direct to label merges vs regular commits (vs backouts?)]]></description>
		<content:encoded><![CDATA[<p>Watch out, you&#8217;re at risk of making Talos actually useful!</p>
<p>So I&#8217;ll ask questions and make a bunch of requests to try to slow you down:</p>
<p>1. Is the changeset range a rollup, or the finest available granularity? (As in, does each range correspond to a interval between talos runs?)</p>
<p>2. I&#8217;d like to be able to look at the table to find an interesting platform, then click on the platform heading to show a graph of just that platform over time. Maybe that points to the graph server with appropriate parameters? (I haven&#8217;t looked at the graph server in ages, ever since I gave up on interpreting whatever the heck its mass of lines was trying to show me.)</p>
<p>3. I want to be able to feed in a changeset hash and have it highlight the row containing it on all graphs. (&#8220;Did changeset X break/improve things?&#8221;)</p>
<p>4. I&#8217;d like push datetime ranges for the rev ranges.</p>
<p>5. DD/MM/YYYY sucks almost as much as MM/DD/YYYY. Pretty please use YYYY/MM/DD?</p>
<p>6. I sort of want to be able to star the big jumps (comment on them with any known explanation.) But that raises all kinds of issues</p>
<p>7. Is the final row a percent? If so, add a percent sign so I don&#8217;t have to wonder.</p>
<p>8. White gaps mean talos was not run for anything in that changeset range? Then what does a multi-row cell just after a white gap mean?</p>
<p>9. Could you add a changeset count to the rows? Just to have a feel for whether it was a merge or individual change. I suppose it would be more direct to label merges vs regular commits (vs backouts?)</p>
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		<title>By: mccr8</title>
		<link>http://blog.mozilla.org/nfroyd/2012/10/05/looking-at-talos-differently-part-2/#comment-551</link>
		<dc:creator>mccr8</dc:creator>
		<pubDate>Fri, 05 Oct 2012 23:35:11 +0000</pubDate>
		<guid isPermaLink="false">http://blog.mozilla.org/nfroyd/?p=103#comment-551</guid>
		<description><![CDATA[The constructors one is particularly weird given that it is a quantity that can be computed precisely, compared to performance which can have some variance.]]></description>
		<content:encoded><![CDATA[<p>The constructors one is particularly weird given that it is a quantity that can be computed precisely, compared to performance which can have some variance.</p>
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