Re: [gentoo-user] how to use RAM

[Alan McKinnon <alan.mckinnon@gmail.com>]

On Tuesday 13 October 2009 00:09:23 KH wrote:
> > I will give my virtual machines more RAM to improve their performance,
> > yes, this is maybe the main reason for me to upgrade RAM.
> > 
> > But are there any other things I might forget?
> > 
> > Are there any creative non-ricer ways to really make use of it?
> > 
> > I would like to hear your opinion on this, I am quite sure the
> > gentoo-community knows one trick or the other ;-)
> > 
> > Thanks a lot, Stefan
> > 
> 
> Hi,
> 
> you could regularly measure your disk speed by coping huge amounts of 
> data to a second ram-disk, and back. Then you have a good knowledge of 
> read and write speed of your hdd :-)
> 
> I often use the ram disk for creating iso images before burning them to 
> dvd/cd. This is a lot faster than doing this on an hdd.
> 

Just make sure the total amount of data is significantly larger than the 
amount of RAM, to negate the effect of in-RAM caching. A CD .iso for example 
can easily be cached in RAM as well as have the copy too. The write to hdd 
will be almost instant the second time

-- 
alan dot mckinnon at gmail dot com