<br><br><div class="gmail_quote">On Tue, Oct 5, 2010 at 6:52 AM, David Henningsson <span dir="ltr"><<a href="mailto:david.henningsson@canonical.com">david.henningsson@canonical.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br>
To give you that context - from what I've heard, Red Hat has customers<br>
in the stock business where milliseconds could be the difference between<br>
being the one being able to buy the stock being up for sale, or losing<br>
the transaction. That's why the PREEMPT_RT patches were originally created.<br>
I know nothing about whether Canonical has customers in that sector or not.<br></blockquote><div><br>Be careful, normal servers need neither the same timer settings as a desktop (i.e. they can respond slower) nor do they need determine times for processes as in audio.<br>
<br>I'm not sure the context you are referring has to do with "servers" needing the -rt patch. Perhaps it does, but if so it is about the stock market and not serving web pages.<br><br>In either context, it is probably irrelevant to our discussions. <br>
<br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">
<br>
</div>Okay, I understand, and I'm glad that Luke replied that he wanted to<br>
help out, at least with the lowlatency version.<br>
<br>
I think we need people's opinion on whether lowlatency is good enough,<br>
or if we really need -rt and/or -realtime. (Which requires more<br>
maintainer work.)<br>
<div class="im"><br></div></blockquote><div><br>Just to make sure people understand, the -rt kernel will not be maintained in the official repositories and therefore cannot be included in the ISO image.<br><br>To put it simply: the -rt kernel will not be part of a default installation of Ubuntu Studio.<br>
<br>This does not mean that it cannot be added after you have installed Ubuntu Studio. It just mean that a default installation of Ubuntu Studio will either have the -generic or (most likely) the -lowlatency kernel installed. If you require the -rt kernel you will need to add the PPA and install the -rt kernel manually.<br>
</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">
<br>
</div>Thanks for the clarification.<br>
<div class="im"><br>
--<br>
David Henningsson, Canonical Ltd.<br>
<a href="http://launchpad.net/%7Ediwic" target="_blank">http://launchpad.net/~diwic</a><br>
<br>
--<br>
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<br>Regards,<br>ScottL <br></div></div><br>