Oh, it was just suggested by a (presumably very outdated) RAID article I found. I didn't think it would be a big deal for the reasons you mentioned. Plus it's sharing the interrupt with two USB ports which don't even have the motherboard adapter connected to them.<div>
<br></div><div>Thanks for the confirmation.<br><br><div class="gmail_quote">On Mon, Apr 5, 2010 at 5:39 PM, Adam Thompson <span dir="ltr"><<a href="mailto:athompso@athompso.net">athompso@athompso.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div lang="EN-CA" link="blue" vlink="purple">
<div>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D">Short answer: no.</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D">Sharing interrupts in PCIe is a normal state of affairs. You’d
have to have a BIOS that allowed you to override that.</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D">On the upside, the historical case of sharing interrupts being
bad, both because of drivers that didn’t allow for that and because of the
performance hit, is just that – historical. There is a theoretically
measurable performance hit even under PCIe, but it’s negligibly small. (Or at
least it’s supposed to be. Bad drivers can screw anything up.)</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D">Why do you want it to have its own interrupt?</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D">-Adam Thompson </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D"> <<a href="mailto:athompso@athompso.net" target="_blank">athompso@athompso.net</a>></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D"> (204) 291-7950</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Sans Typewriter";color:#1F497D"> </span></p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt">
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt">From:</span></b><span lang="EN-US" style="font-size:10.0pt"> <a href="mailto:roundtable-bounces@muug.mb.ca" target="_blank">roundtable-bounces@muug.mb.ca</a>
[mailto:<a href="mailto:roundtable-bounces@muug.mb.ca" target="_blank">roundtable-bounces@muug.mb.ca</a>] <b>On Behalf Of </b>Kevin McGregor<br>
<b>Sent:</b> Monday, April 05, 2010 17:36<br>
<b>To:</b> MUUG Roundtable<br>
<b>Subject:</b> [RndTbl] PCIe interrupt assignments</span></p>
</div>
</div><div class="im">
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have an 8-port SATA disk controller in a PCIe slot
(thanks, Trevor!), and it seems to be sharing an interrupt. I'm running Ubuntu
Server 9.10 64-bit. Is there some way to arrange for it to have its own
interrupt, unshared?</p>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Kevin</p>
</div>
</div></div>
</div>
</div>
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