[rrd-developers] [PATCH] generalisation of rrd_open API

Daniel.Pocock at barclayscapital.com Daniel.Pocock at barclayscapital.com
Fri Oct 17 17:03:04 CEST 2008

> Daniel.Pocock at barclayscapital.com wrote:
> > The madvise stuff has come out, but it will go back in.  
> There are a 
> > couple of options:
> > - pass the header size (which is already known) to 
> > rrd_file->vfs->open_impl, and call madvise once for the whole region
> > - add an madvise function to rrd_vfs_t
> Taking it out, even temporarily, doesn't seem like that good 
> of an idea to me.  You're targeting large installations, 
> which need madvise/fadvise very much.

That's why I said (further down) that this is not ready to commit - I
would welcome your suggestions on how to invoke madvise within this
generalised API.

> > 
> > This is not ready to commit (although it does seem to run), 
> I am just 
> > putting it up for discussion.

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