Re: swapcache Setup

[Dylan Reinhold <dylan@xxxxxxxxxxxxxxxx>]

On 05/24/2010 01:42 PM, Matthew Dillon wrote:
> :Hello All,
> :
> :   I added a How-To for setting up swapcache from my notes.
> :
> :http://www.dragonflybsd.org/docs/howtos/swapcache/
> :
> :Thanks,
> :Dylan
>
>      That looks pretty good.  The swapcache manual page has some extensive
>      recommendations (but not the step-by-step that you put together for
>      docs), the most important of which being that you might want to
>      configure only 32G of swap on the 40G SSD instead of using all 40G.
>
>      For a manufacturer-fresh SSD configuring only 32G out of the 40G
>      leaves 8G which the SSD firmware will use to enhance its wear-leveling
>      algorithms, improving the overall life of the SSD.
>
>      Here are some suggestions:
>
>      * When using a 40G SSD as an example configure only 32G of swap.
>
>      * There is no need to newfs a swap partition.
>
>      * Someone configuring swapcache fresh with no prior experience should
>        start by only caching meta-data.  i.e. data_enable=0.
>
> 					-Matt
> 					Matthew Dillon
> 					<dillon@backplane.com>
>
>    
Matt,
  Thanks for the info, I will update the page to include your suggestions.

Dylan