<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">If you're really into self-tuning this
parameter, I expect that a very simple gradient-descent mechanism
would actually work pretty well in this case. <br>
<br>
We have done similar work in the Cloud-TM project (applied to both
message batching and number of threads active per node), and if
you're interested I may send more references on this.<br>
<br>
BTW, +1 for making this configurable: eager broadcasting read
requests seemed to me to be a little too aggressive for the
normal/failure-free behavior.<br>
<br>
Cheers,<br>
<br>
Paolo<br>
<br>
On 2/26/13 1:55 PM, Erik Salter wrote:<br>
</div>
<blockquote cite="mid:BAY174-DS936994B76B7AF4D78608FC3FC0@phx.gbl"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<meta name="Generator" content="Microsoft Word 14 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.apple-style-span
{mso-style-name:apple-style-span;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tune
in real-time, of course ;)<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Erik<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a class="moz-txt-link-abbreviated" href="mailto:infinispan-dev-bounces@lists.jboss.org">infinispan-dev-bounces@lists.jboss.org</a>
[<a class="moz-txt-link-freetext" href="mailto:infinispan-dev-bounces@lists.jboss.org">mailto:infinispan-dev-bounces@lists.jboss.org</a>] <b>On
Behalf Of </b>Mircea Markus<br>
<b>Sent:</b> Tuesday, February 26, 2013 7:36 AM<br>
<b>To:</b> infinispan -Dev List<br>
<b>Subject:</b> Re: [infinispan-dev] Staggering remote
GET calls<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On 26 Feb 2013, at 10:56, Manik Surtani
wrote:<o:p></o:p></p>
</div>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"><span class="apple-style-span"><span
style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">I'm
not surprised that read performance suffers a bit
actually. Which is why we broadcast the GETs
originally. But once the staggering timeout becomes
configurable, this should be something people can tune.</span></span><span
style="font-size:13.5pt;font-family:"Helvetica","sans-serif""><br>
<br>
</span><o:p></o:p></p>
<p class="MsoNormal">+1. Also the performance increase for
writes is huge. I think this should be the default, as read
efficiency can be improved by L1.<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black">Cheers,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black">-- <br>
Mircea Markus<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black">Infinispan
lead (<a moz-do-not-send="true"
href="http://www.infinispan.org">www.infinispan.org</a>)<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p> </o:p></span></p>
</div>
</div>
</div>
</div>
</div>
<p class="MsoNormal"><span
style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><br>
<br>
</span><o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
infinispan-dev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:infinispan-dev@lists.jboss.org">infinispan-dev@lists.jboss.org</a>
<a class="moz-txt-link-freetext" href="https://lists.jboss.org/mailman/listinfo/infinispan-dev">https://lists.jboss.org/mailman/listinfo/infinispan-dev</a></pre>
</blockquote>
<br>
</body>
</html>