On 05/09/2011 08:09 PM, Peter Kjellström wrote: > > This means that you're limiting the amount of RAM that can be used as > pagecache (basically caching I/O) to 10%. This may not be an issue for you but > may also severely limit your performance (all depending on work load). > > An alternative may be to simple set swappiness to 0. > Hmmm nice points,I am using Sata with LVM with 1 TB of two HD. > You'll really have to try them to know what works for you. The two main > variables that'll affect the choice is your I/O load and the device under > (type of raid for example). For example some raid controllers really prefer > noop. > > Lastly, you didn't tell us if you're on i386-pae or x86_64 which may make a > big difference. System is x86_64