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Alan Pevec wrote:
<blockquote
cite="mid:2be7262f0901131558t163d40e5na7bfb29a8d8a321f@mail.gmail.com"
type="cite">On Tue, Jan 13, 2009 at 11:33 PM, Darryl L. Pierce <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:dpierce@redhat.com">dpierce@redhat.com</a>></span>
wrote:<br>
<div class="gmail_quote">
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">If
the ovirt_overcommit kernel argument is passed, the value supplied<br>
will override the default value, which is 2GB.<br>
</blockquote>
<div><br>
nack - that's too easy :)<br>
<br>
lemme try to explain what I had in mind:<br>
parameter should accept the overcommit ratio as its value and not max.
size in MB - otherwise admin needs to adjust it for different machines<br>
<br>
ovirt_overcommit=N<br>
means swap area is set to N * MEM_SIZE<br>
</div>
</div>
</blockquote>
Can it be N*MEM_SIZE + the values from the table below?<br>
This way you retain swap memory for the VMs and additional swap for the
host.<br>
<blockquote
cite="mid:2be7262f0901131558t163d40e5na7bfb29a8d8a321f@mail.gmail.com"
type="cite">
<div class="gmail_quote">
<div><br>
default N is 2, in case parameter is not present<br>
</div>
</div>
</blockquote>
Make sure N is not an int. The current solidIce default is 150%.<br>
For 150% N should be 0.5 since the 100% is in the RAM.<br>
<blockquote
cite="mid:2be7262f0901131558t163d40e5na7bfb29a8d8a321f@mail.gmail.com"
type="cite">
<div class="gmail_quote">
<div>special case N=0, means overcommit is not used and swap area is
set to min. required size from the table in <a moz-do-not-send="true"
href="http://kbase.redhat.com/faq/docs/DOC-15252">http://kbase.redhat.com/faq/docs/DOC-15252</a>
<p>MEM_SIZE SWAP_SIZE</p>
<p><=4GB 2GB</p>
<p>4GB to 16GB 4GB</p>
<p>16GB to 64GB 8GB</p>
<p>64GB to 256GB 16GB</p>
<p><br>
</p>
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</div>
<pre wrap="">
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</pre>
</blockquote>
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