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<p class="MsoNormal"><span style="color:#000066">(resending for hotspot-gc-dev)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#000066"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#000066">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#000066"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#000066">I have a number of question about the proposed changes for the JEP and I would like to make the following suggestions and comments<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#000066"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="color:#000066"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#000066">Are we planning to make this change the default behavior for G1? Or this is an optional switch for people who runs in a container environment?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="color:#000066"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#000066">In a trading systems, sometimes there are period of quiescence and then suddenly a burst of activity towards market close or market event. The loadavg you suggest to “monitor” the activity in the system
only reports up to 14mins and it might not necessary a good measure for this type of applications, especially you would trigger a Full GC<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="color:#000066"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#000066">You haven’t fill in the details for “The GCFrequency value is ignored and therefore, i.e., no full collection is triggered, if:”<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="color:#000066"><span style="mso-list:Ignore">4)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#000066">If we are trigging full GC with this we should make sure the GC reason is populated and log properly in the GC log so we can track it down.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="color:#000066"><span style="mso-list:Ignore">5)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#000066">I have not heard of J9 Gencon/Shenandoah providing similar functionality. Can you point me to further documentation on which feature you model upon?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#000066"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#000066">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#000066"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:110%"><b><span style="font-size:9.0pt;line-height:110%;color:#000066;mso-fareast-language:ZH-TW">Sunny Chan<o:p></o:p></span></b></p>
<p class="MsoNormal" style="line-height:110%"><b><span style="font-size:9.0pt;line-height:110%;color:#000066;mso-fareast-language:ZH-TW">Senior Lead Engineer, Executive Services<o:p></o:p></span></b></p>
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