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just wondering - serving file cache off of ram ?
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Jonathan Vanasco  
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 More options Jul 30 2012, 10:48 am
From: Jonathan Vanasco <jonat...@findmeon.com>
Date: Mon, 30 Jul 2012 07:48:04 -0700 (PDT)
Local: Mon, Jul 30 2012 10:48 am
Subject: just wondering - serving file cache off of ram ?
has anyone tried configuring pyramid / modules / os to run the cached
data directory ( templates, sessions, variables, whatever ) off of a
virtual disk/ram ?

just wondering if anyone has, and if there were decent speed
improvements.


 
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Chris Rossi  
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 More options Jul 30 2012, 10:57 am
From: Chris Rossi <ch...@archimedeanco.com>
Date: Mon, 30 Jul 2012 10:57:20 -0400
Local: Mon, Jul 30 2012 10:57 am
Subject: Re: just wondering - serving file cache off of ram ?
I haven't.  One nice thing about Unix based OS's (and maybe Windows
does this, too, I just wouldn't know) is they tend to draft any unused
ram into service as a disk cache, so if you have a small set of
frequently read files, there's a decent chance it will be in RAM.
Obviously, having a ramdisk would give you more control over what's in
RAM at any given moment, but if you provision your server to have a
lot more RAM than it needs for applications, and if you aren't
generally doing a ton of disk IO on a lot of different files that
would cause the cache to turn over frequently, then there's a decent
chance you can just sit back and let the OS take care of it for you.

Chris

On Mon, Jul 30, 2012 at 10:48 AM, Jonathan Vanasco


 
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Chris Lambacher  
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 More options Jul 30 2012, 2:59 pm
From: Chris Lambacher <ch...@kateandchris.net>
Date: Mon, 30 Jul 2012 14:59:23 -0400
Local: Mon, Jul 30 2012 2:59 pm
Subject: Re: just wondering - serving file cache off of ram ?

On Mon, Jul 30, 2012 at 10:57 AM, Chris Rossi <ch...@archimedeanco.com>wrote:

> and maybe Windows does this, too, I just wouldn't know

Yes, windows also caches frequently/recently accessed files in free ram.

-Chris

--
Christopher Lambacher
ch...@kateandchris.net


 
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Jonathan Vanasco  
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 More options Jul 31 2012, 10:31 am
From: Jonathan Vanasco <jonat...@findmeon.com>
Date: Tue, 31 Jul 2012 07:31:06 -0700 (PDT)
Local: Tues, Jul 31 2012 10:31 am
Subject: Re: just wondering - serving file cache off of ram ?
ah, nice.

i just started thinking about this as I noticed the "pserve --reload"
command refreshing on any change within the directory ( i.e. on Dir/
docs/* -- not on Dir/App or Dir/$env$.ini

The hdd on my macbook is 3-4 years old and pretty full, so it's not
nearly as fast as it should be.


 
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