<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style>
<!--
@font-face
        {font-family:宋体}
@font-face
        {font-family:宋体}
@font-face
        {font-family:Calibri}
@font-face
        {font-family:"\@宋体"}
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0cm;
        margin-bottom:.0001pt;
        text-align:justify;
        text-justify:inter-ideograph;
        font-size:10.5pt;
        font-family:"Calibri","sans-serif"}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
        {margin:0cm;
        margin-bottom:.0001pt;
        text-align:justify;
        text-justify:inter-ideograph;
        text-indent:21.0pt;
        font-size:10.5pt;
        font-family:"Calibri","sans-serif"}
span.EmailStyle17
        {font-family:"Calibri","sans-serif";
        color:windowtext}
span.hps
        {}
span.def
        {}
.MsoChpDefault
        {}
@page WordSection1
        {margin:72.0pt 90.0pt 72.0pt 90.0pt}
div.WordSection1
        {}
ol
        {margin-bottom:0cm}
ul
        {margin-bottom:0cm}
-->
</style>
</head>
<body lang="ZH-CN" link="blue" vlink="purple" style="">
<div class="WordSection1">
<p class="MsoNormal" style="text-indent:21.0pt"><span lang="EN-US">I did some testing with id=7068625’s patch. Sun6u25 with hotspot20 VS Sun6u25 with hotspot20+patch, the results show as follow.</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:-18.0pt"><span lang="EN-US"><span style="">1.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><span lang="EN-US">Special case</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">I designed
<span class="hps">a special example,</span> <span class="hps">creating</span> <span class="hps">
30</span> <span class="hps">large arrayes</span> <span class="hps">of</span> <span class="hps">
500 m</span>. Because of <span class="hps">the</span> small <span class="hps">young</span>
<span class="hps">gen(384m)</span>, these arrays will <span class="hps">be allocated</span>
<span class="hps">in</span> <span class="hps">the</span> <span class="hps">old</span>
<span class="hps">gen</span>. Then i <span class="hps">create</span> <span class="hps">
many</span> <span class="hps">small</span> <span class="hps">objects</span>, leading to
<span class="hps">frequently</span> <span class="hps">young gc</span>. The <span class="hps">
result shows</span> <span class="hps">as</span> <span class="hps">follows, young gc performance improves 5 times.</span></span></p>
<div align="center">
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="511" style="margin-left:24.75pt; border-collapse:collapse">
<tbody>
<tr style="height:6.45pt">
<td width="231" nowrap="" style="width:172.95pt; border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:6.45pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> </span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="75" nowrap="" style="width:56.1pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:6.45pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1<sup>st</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:6.45pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">2<sup>nd</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:6.45pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">3<sup>rd</sup>,YGC(s)</span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:6.45pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Average,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
</tr>
<tr style="height:19.25pt">
<td width="231" nowrap="" style="width:172.95pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25 , Hotspot20</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="75" nowrap="" style="width:56.1pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">19.5393</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">19.6194</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">19.6167</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">19.5918</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:19.25pt">
<td width="231" style="width:172.95pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch, ParGCCardsPerStrideChunk=4096</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="75" nowrap="" style="width:56.1pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">2.89477</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">2.85132</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">2.60825</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="69" nowrap="" style="width:51.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:19.25pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">2.78478</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
</tbody>
</table>
</div>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">Jvm options is: -Xmn384m -Xss20m -Xms16g -Xmx16g -XX:PermSize=96m -XX:MaxPermSize=256m -XX:SurvivorRatio=10 -XX:VMThreadStackSize=30720 -XX:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection
 -XX:CMSMaxAbortablePrecleanTime=5000 -XX:+CMSClassUnloadingEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:+DisableExplicitGC -verbose:gc -Xloggc:log/test.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseCompressedOops -XX:+UnlockDiagnosticVMOptions
 -XX:ParGCCardsPerStrideChunk=4096</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:-18.0pt"><span lang="EN-US"><span style="">2.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><span lang="EN-US">GCbench</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">I download GCBench.java from http://code.google.com/p/hotpy/source/browse/trunk/benchmarks/java/GCBench.java, and change kStretchTreeDepth    = 25, kLongLivedTreeDepth 
 = 22, kMaxTreeDepth = 25; the result shows as follows</span></p>
<div align="center">
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="627" style="width:470.6pt; margin-left:5.15pt; border-collapse:collapse">
<tbody>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> </span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1<sup>st</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">2<sup>nd</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">3<sup>rd</sup>,YGC(s)</span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Average,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25 , Hotspot20</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.15687</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.15133</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14496</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.1510533</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch, ParGCCardsPerStrideChunk =64</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.16177</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.16077</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.17036</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.1643</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch, ParGCCardsPerStrideChunk =128</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.15831</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.17001</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.16075</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.1630233</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch, ParGCCardsPerStrideChunk =256</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14909</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.15332</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.15261</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.1516733</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch, ParGCCardsPerStrideChunk =512</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.13964</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14849</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.15045</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.1461933</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch,ParGCCardsPerStrideChunk =1024</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14355</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.15015</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.13443</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.14271</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch,ParGCCardsPerStrideChunk =2048</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.13742</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14496</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14833</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.14357</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.55pt">
<td width="234" nowrap="" style="width:175.8pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch,ParGCCardsPerStrideChunk =4096</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14581</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="93" nowrap="" style="width:69.65pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.14538</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="90" nowrap="" style="width:67.7pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1.13679</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="117" nowrap="" style="width:87.8pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.55pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">1.14266</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
</tbody>
</table>
</div>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">Jvm options is: –Xmn2560m -Xss20m –Xms4g –Xmx4g -XX:PermSize=96m -XX:MaxPermSize=256m -XX:SurvivorRatio=10 -XX:VMThreadStackSize=30720 -XX:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection
 -XX:CMSMaxAbortablePrecleanTime=5000 -XX:+CMSClassUnloadingEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:+DisableExplicitGC -verbose:gc -Xloggc:log/test.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseCompressedOops</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:-18.0pt"><span lang="EN-US"><span style="">3.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><span lang="EN-US">Specjvm2008</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">SPECJVM2008’ result shows as follow</span></p>
<div align="center">
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="561" style="width:420.95pt; margin-left:5.15pt; border-collapse:collapse">
<tbody>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> </span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1<sup>st</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">2<sup>nd</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">3<sup>rd</sup>,YGC(s)</span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Average,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
</tr>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25 , Hotspot20</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">9.76089</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> <span lang="EN-US">no test</span></span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> <span lang="EN-US">no test</span></span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">9.76089</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch,ParGCCardsPerStrideChunk =256</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">9.98591</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">9.48948</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">10.0271</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">9.8341633</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch,ParGCCardsPerStrideChunk =4096</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">9.11581</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">9.18337</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">9.30351</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">9.2008967</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
</tbody>
</table>
</div>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">Jvm options is: -Xmn2560m -Xss20m -Xms4g -Xmx4g -XX:PermSize=96m -XX:MaxPermSize=256m -XX:SurvivorRatio=10 -XX:VMThreadStackSize=30720 -XX:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection
 -XX:CMSMaxAbortablePrecleanTime=5000 -XX:+CMSClassUnloadingEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:+DisableExplicitGC -verbose:gc -Xloggc:log/test.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseCompressedOops -jar SPECjvm2008.jar -ikv --lagom
 -bt 8 -ops 15 -i 5 -pf  props/specjvm.properties</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:-18.0pt"><span lang="EN-US"><span style="">4.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><span lang="EN-US">Specjbb2005</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">Specjbb2005’s result shows as follow</span></p>
<div align="center">
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="561" style="width:420.95pt; margin-left:5.15pt; border-collapse:collapse">
<tbody>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> </span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">1<sup>st</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">2<sup>nd</sup>,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">3<sup>rd</sup>,YGC(s)</span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border:solid windowtext 1.0pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Average,YGC(s)</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
</tr>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25 , Hotspot20</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">97.5287</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> <span lang="EN-US">no test</span></span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span style="font-size:11.0pt; font-family:宋体; color:black"> <span lang="EN-US">no test</span></span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">97.5287</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch,ParGCCardsPerStrideChunk =256</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">96.8332</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">96.6885</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">98.348</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">97.2899</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
<tr style="height:13.5pt">
<td width="219" nowrap="" style="width:164.25pt; border:solid windowtext 1.0pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">Sun6u25,Hotspot20 with patch,ParGCCardsPerStrideChunk =4096</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="77" nowrap="" style="width:57.5pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">96.1914</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">96.3589</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="78" nowrap="" style="width:58.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">97.6005</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"></span></p>
</td>
<td width="110" nowrap="" style="width:82.4pt; border-top:none; border-left:none; border-bottom:solid windowtext 1.0pt; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt; height:13.5pt">
<p class="MsoNormal" align="right" style="text-align:right"><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red">96.716933</span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:red"></span></p>
</td>
</tr>
</tbody>
</table>
</div>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">Jvm options is:</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:0cm"><span lang="EN-US">-Xmn2560m -Xss20m -Xms4g -Xmx4g -XX:PermSize=96m -XX:MaxPermSize=256m -XX:SurvivorRatio=10 -XX:VMThreadStackSize=30720 -XX:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection
 -XX:CMSMaxAbortablePrecleanTime=5000 -XX:+CMSClassUnloadingEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:+DisableExplicitGC -verbose:gc -Xloggc:log/test.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseCompressedOops pec.jbb.JBBmain -propfile SPECjbb.props</span></p>
<p class="MsoNormal"><span lang="EN-US">Summary</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:-18.0pt"><span lang="EN-US"><span style="">1.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><span lang="EN-US">if a large heap is allocated in Old Gen and there are no or very few references from Old Gen to Young Gen, the patch improves gc performance a lot.</span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:-18.0pt"><span lang="EN-US"><span style="">2.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><span class="def"><span lang="EN-US" style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#313131">Generally, Such as GCbench, SPECJVM2008 and specjbb2005, the patch improves a little with proper
</span></span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black">ParGCCardsPerStrideChunk, but</span><span class="def"><span lang="EN-US" style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#313131"> maybe bad a little with
 improper</span></span><span lang="EN-US" style="font-size:11.0pt; font-family:宋体; color:black"> ParGCCardsPerStrideChunk.</span><span lang="EN-US"></span></p>
<p class="MsoListParagraph" style="margin-left:39.0pt; text-indent:-18.0pt"><span class="def"><span lang="EN-US" style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#313131"><span style="">3.<span style="font:7.0pt "Times New Roman"">    
</span></span></span></span><span class="def"><span lang="EN-US" style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#313131">this patch maybe is effective to app which allocates big heap and old gen is big</span></span></p>
<p class="MsoNormal"><span class="def"><span lang="EN-US" style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#313131"> </span></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards,</span></p>
<p class="MsoNormal"><span lang="EN-US">Chengtao</span><span class="def"><span lang="EN-US" style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#313131"></span></span></p>
</div>
<br>
<hr>
<font face="Arial" color="Gray" size="1"><br>
This email (including any attachments) is confidential and may be legally privileged. If you received this email in error, please delete it immediately and do not copy it or use it for any purpose or disclose its contents to any other person. Thank you.<br>
<br>
本电邮(包括任何附件)可能含有机密资料并受法律保护。如您不是正确的收件人,请您立即删除本邮件。请不要将本电邮进行复制并用作任何其他用途、或透露本邮件之内容。谢谢。<br>
</font>
</body>
</html>