cache large static files in memory

[Gabriel Ramuglia]

I'm not exactly sure. Generally it works pretty well if you've got
enough spare ram compared to the size of the files that need to be in
the cache. There is a tendency to only buy as much ram for your server
as you need to avoid swapping, but if you add a couple more gigs you
can improve your i/o performance pretty significantly. That's also
pretty cheap with ram prices so low these days.

On Tue, Jun 23, 2009 at 11:18 PM, Hua Su<huas.su at gmail.com> wrote:
> Thanks! So is there any guidance about how to configure cache behavior
> of linux file systems to gain max performance?
>
> On Wed, Jun 24, 2009 at 1:53 PM, Gabriel Ramuglia <gabe at vtunnel.com> wrote:
>>
>> The linux file system will cache recently or frequently used files in
>> memory regardless, and the effect is similar in performance to an
>> application level cache. A separate application level cache would not
>> necessarily be desirable since the file system cache would largely
>> have the same items in it anyway; storing them again in an application
>> level memory cache would simply leave less total memory available to
>> file caching or other uses.
>>
>> On Tue, Jun 23, 2009 at 10:00 PM, Hua Su<huas.su at gmail.com> wrote:
>> > Hi all,
>> > Does nginx support to cache static files in memory if it finds several
>> > large
>> > files are requested frequently? If yes, how to control the cache? If
>> > not, is
>> > there any simple way to implement a similar function?
>> > --
>> > Hua Su
>>
>
>