Re: Designing database tables for performance?
Date: 5 Mar 2007 20:59:04 -0800
Message-ID: <1173157144.758641.287220_at_n33g2000cwc.googlegroups.com>
On 24 Feb, 13:30, "Cimode" <cim..._at_hotmail.com> wrote:
Yes. A logical I/O does not go down an I/O channel but comes via the
memory bus.
The time to complete is therefore far less and the "cost" in terms of
time is much less.
> On 23 fév, 22:33, "jgar the jorrible" <joel-ga..._at_home.com> wrote:
>
> > > In what RAM would be less physical than HD ? For any reason, an
> > > absurdity is an absurdity.
>
> > Not an absurdity, you just aren't paying attention to how the I/O is
> > counted.
>
> So you say there are *ways* to count IO's. Fair enough. Question is:
> what has the way of counting IO's has any bearing on the media that
> supports them and therefore qualifies their nature as physical or
> logical? What is the difference: speed?
>