nginx-0.8.9

[Jim Ohlstein]

Igor Sysoev wrote:
> Changes with nginx 0.8.9                                         17 Aug 2009
>
>     *) Feature: now the start cache loader runs in a separate process; this 
>        should improve large caches handling.
>   
Can you briefly explain the function of cache manager and cache loader 
processes?
>     *) Feature: now temporarily files and permanent storage area may reside 
>        at different file systems.
>   

In the past files were moved from temporary system to cache with hard 
links if I am not mistaken. Does this mean that each file will now be 
written separately? Won't that have a negative impact on disk I/O on a 
busy system?