[mdlug] Suggestions for flash-drive Linux?

[Richard Herrell]

Readyboost simply replaces hard disk reads and writes with flash reads 
and writes by caching portions of the paging file onto a flash disk:

 From the FAQ:

     Q: Isn't this just putting the paging file onto a flash disk?
     A: Not really - the file is still backed on disk. This is a cache - 
if the data is not found in the ReadyBoost cache, we fall back to the HDD.

     http://blogs.msdn.com/tomarcher/archive/2006/06/02/615199.aspx

This is OK because on boot Microsoft windows is prepared to deal with a 
corrupt paging file anyway, so you can use your flash, crash, pull it 
out, start up the computer, and it will still work.

Oracle has done something similar for years now by writing undo logs and 
redo logs to flash rather than disk, thereby skipping some disk reads 
and writes and improving performance.

http://www.dba-oracle.com/oracle_tips_SSD.htm

Regards,

Richard


Ingles, Raymond wrote:
>> From: Clinton V. Weiss
>>     
>
>   
>>> Swapping is essentially inevitable in a Windows system no 
>>> matter how much RAM you add.
>>>
>>>       
>> That isn't alway true.  Here at work I must use Windows XP.  Since I
>> have 2 gigs of RAM on my system, I fully utilize it by turning off all
>> paging.  Windows runs like a dream when it's completely in memory.
>>     
>
>  Ah, well, I stand corrected.
>
>   
>> I've ran out of memory once, and that was completely my fault for not
>> paying attention to what I was doing.
>>     
>
>  Of course, as you discovered, Windows does not handle that situation
> terribly gracefully. Further "of course", "gracefully" and "Windows"
> don't generally go together at all. :->
>
>  Sincerely,
>
>  Ray Ingles                                    (313) 227-2317
>
>  "Bill Gates is a billionare because he [realized] that given
>  a choice between a $200 program that works flawlessly and a
>    $99 program that fails 5% of the time, most people (and
>   businesses) will choose the cheaper product (while moaning
>          how bad software is)." - Steven Maurer
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