[CentOS] OT: Caching synchronous writes

On Apr 24, 2010, at 12:43 PM, Les Mikesell <lesmikesell at gmail.com>  
wrote:

> Ross Walker wrote:
>>
>> NFS should always be 'sync' if performance isn't good, then your
>> storage isn't good.
>
> Why demand sync on remote storage when you typically don't have it  
> locally?
> Programs that need transactional integrity should know when to fsync 
> () and for
> anything else there's not much difference whether you crash before  
> or after a
> write() was issued in terms of it not completing.

Yes, but 'async' ignores those fsyncs and returns immediately.

-Ross