<div dir="ltr">If you use budget enforcement, then yes, that is a reasonable number for preventing WCET overruns. .98 would probably work as well. Without budget enforcement, I wouldn't worry about specifying a scale. Leave it at 1.0 as your jobs will be off by <2%.
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 17, 2013 at 5:07 PM, Sisu Xi <span dir="ltr"><<a href="mailto:xisisu@gmail.com" target="_blank">xisisu@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">HI, Glenn:<div><br></div><div>Thanks for your reply.</div><div><br></div><div>If the scale is set to 1.0, which means all the overhead is *not* counted.</div><div><br></div><div>Usually what's the value for the scale parameter as a reasonable setting on a standard intel 64bit platform? 0.95?</div>
<div><br></div><div>Thanks.</div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Sisu</div></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">
On Wed, Apr 17, 2013 at 4:04 PM, Glenn Elliott <span dir="ltr"><<a href="mailto:gelliott@cs.unc.edu" target="_blank">gelliott@cs.unc.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Yes. The 90% thing is out of date. Use the scale parameter.</div><div><br></div><div>-Glenn</div>
<div><div><div><br>On Apr 17, 2013, at 4:58 PM, Sisu Xi <<a href="mailto:xisisu@gmail.com" target="_blank">xisisu@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Hi, all:<div>
<br></div><div>I was reading the mailing list and found this discussion:</div><div><br></div><div><a href="https://lists.litmus-rt.org/pipermail/litmus-dev/2012/000095.html" target="_blank">https://lists.litmus-rt.org/pipermail/litmus-dev/2012/000095.html</a><br>
</div><div><br></div><div>It says rtspin cuts the wcet to 90% of its actual specified wcet.</div><div><br></div><div>Is it the same for the current release?</div><div><br></div><div>I check the code and cannot find where does this 90% coming from.</div>
<div><br></div><div>It has the "scale" variable, but is set to 1.0</div><div><br></div><div>Thanks very much!</div><div><br></div><div>Sisu</div><div><br clear="all"><div><br></div>
-- <br>Sisu Xi, PhD Candidate<br><br><a href="http://www.cse.wustl.edu/~xis/" target="_blank">http://www.cse.wustl.edu/~xis/</a><br>Department of Computer Science and Engineering<br>Campus Box 1045<br>Washington University in St. Louis<br>
One Brookings Drive<br>St. Louis, MO 63130
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Sisu Xi, PhD Candidate<br><br><a href="http://www.cse.wustl.edu/~xis/" target="_blank">http://www.cse.wustl.edu/~xis/</a><br>Department of Computer Science and Engineering<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Jonathan Herman<br>Department of Computer Science at UNC Chapel Hill
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