[ros-kernel] Re: AW: Re: making vfat asynchronous

[David W. <we...@cw...>]

On Sat, Nov 10, 2001 at 10:37:31AM +0100, Hartmut Birr wrote:
> 
> The current cache manger can only handle small memory segments. This 
> results in many calls to the fsd, when there is a read or write with large 
> datas, which are not in the cache. 
>
This is not true; the fileystem can select the size of the segments which 
are used. 

> The cooperation betwen the cache and the memory manger isn't good. Each 
> missing page results in a single call to the fsd for 4K page. The cache 
> manager has no read ahead or delayed write  function. 
>
I'm working on fixing this. Could you give more detail about what is 
missing in the cache manager to support asynchronous i/o.

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