Disk I/O as a bottleneck?

[guy keren]

On Sat, 2011-05-07 at 21:49 +0300, Elazar Leibovich wrote:
> On Sat, May 7, 2011 at 4:06 PM, guy keren <choo at actcom.co.il> wrote:
>         
>         if you eventually decide that it is indeed disk I/O that slows
>         you down,
>         and if you have a lot of money to spend - you could consider
>         buying an
>         enterprise-grade SSD (e.g. from fusion I/O or from OCZ -
>         although for
>         your use-case, some of the cheaper SSDs will do) and use it
>         instead of
>         the hard disks. they only cost thousands of dollars for a
>         600GB SSD ;)
> 
> 
> Is there a reason you're recommending such an expensive drives?
> I thought some time ago to buy a "regular" 40-80Gb and install the OS
> +swap there, and have a "regular" drive around for the rest of the
> data. Is there a reason this won't work?

are you talking about using a low-end SSD?

the problem with them, is that often their throughput for sequential
operations is lower then that of normal hard disks.

or are you talking about something different?

--guy