Re: [Yaffs] Yaffs cache disabling

Top Page
Attachments:
Message as email
+ (text/plain)
+ (text/html)
Delete this message
Reply to this message
Author: Giovanni Rana
Date:  
To: Charles Manning
CC: yaffs
Subject: Re: [Yaffs] Yaffs cache disabling
Hi,

thank you very much. I know performances worsen, but I need to simulate a
simple system having either lot of reads or lot of writes. How could I do
it? (if I'm not off-topic).

BR
Giovanni



2012/7/8 Charles Manning <>

> On Friday 06 July 2012 23:28:45 Giovanni Rana wrote:
> > Good moorning everybody,
> >
> > I would like to disable Yaffs caching of pages (at run-time). Is there a
> > way to do it?
> >
> > Best regards,
> > Giovanni Rana
>
> Hello Giovanni
>
> There are really three answers to this question...
>
> First, you can disable the cache before mounting by setting
> dev->param.n_caches to zero. In Linux you can mount with -o no-cache.
>
> Secondly, you can empty the current cache by using sync().
>
> There is no way to disable the cache once a partition is mounted.
>
> Why do you want to disable the cache? It generally provides speed
> advantages.
>
> -- Charles
>
>
> _______________________________________________
> yaffs mailing list
>
> http://lists.aleph1.co.uk/cgi-bin/mailman/listinfo/yaffs
>