<br><br><div class="gmail_quote">On Tue, May 31, 2011 at 6:12 PM, Pat Regan <span dir="ltr"><<a href="mailto:thehead@patshead.com">thehead@patshead.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;">
<div class="im">On Tue, 31 May 2011 18:01:17 -0400<br>
Jim Kinney <<a href="mailto:jim.kinney@gmail.com">jim.kinney@gmail.com</a>> wrote:<br>
<br>
> I know the extended partition stuff is DOS relic configuration<br>
> workarounds. Does a Linux system really care about where a partition<br>
> is? Is it just "drive space" as far as the kernel is concerned or are<br>
> partitions in the extended one treated differently? This is only in<br>
> reference to modern SATA drives. I know old kernels with really old<br>
> drive (early IDE stuff) it did matter.<br>
<br>
</div>The only (minor) difference between locations on a spinning drive is<br>
the speed. One end of the drive has higher sequential throughput than<br>
the other. I've never had much luck trying to make sure of that fact<br>
in practice, though.<br></blockquote><div><br>My (30 seconds of) digging shows that drive rotation speeds vary to keep the data rate passing under the head nearly constant thus making the data rate out of the drive nearly constant for reads larger than the cache. seek time is related to disk diameter and how fast the head arm and swing.<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><div></div><div class="h5"><br>
Pat<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>-- <br>James P. Kinney III<br><br>As long as the general population is passive, apathetic, diverted to
consumerism or hatred of the vulnerable, then the powerful can do as
they please, and those who survive will be left to contemplate the
outcome.<br>- <i><i><i><i>2011 Noam Chomsky</i></i></i></i><br>