<div dir="ltr">I could boot it using qemu. So what's the point?</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 28, 2015 at 2:41 AM, Andev <span dir="ltr"><<a href="mailto:debiandev@gmail.com" target="_blank">debiandev@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Mon, Apr 27, 2015 at 9:00 PM, Bobby Powers <<a href="mailto:bobbypowers@gmail.com">bobbypowers@gmail.com</a>> wrote:<br>
> Hello,<br>
><br>
> Andev wrote:<br>
>> I usually compile my kernel with an unsupported O3 option(why not? :).<br>
><br>
> Because there have been publications that show on major benchmarks,<br>
> the effects of -O3 are indistinguishable from noise:<br>
> <a href="http://people.cs.umass.edu/~emery/pubs/Stabilizer-UMass-CS-TR2011-43.pdf" target="_blank">http://people.cs.umass.edu/~emery/pubs/Stabilizer-UMass-CS-TR2011-43.pdf</a><br>
><br>
> Have you noticed that -O3 provides any performance benefits over -O2?<br>
><br>
<br>
</span>Look here: <a href="http://www.spinics.net/lists/kernel/msg1962561.html" target="_blank">http://www.spinics.net/lists/kernel/msg1962561.html</a><br>
<br>
Btw, this will help uncover problems in either gcc or the kernel for<br>
sure. So no harm in trying!<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
</font></span><div class="HOEnZb"><div class="h5">Andev<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><br>----------------------------------------------<br>Leônidas S. Barbosa (Kirotawa)<br>blog: <a href="http://corecode.wordpress.com" target="_blank">corecode.wordpress.com</a></div>
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