[vdr] Re: Speed up the opening of Recordingsmenu ?

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Emil Naepflein wrote:
> 
> On Fri, 12 Jul 2002 16:24:18 +0200, Klaus Schmidinger
> <Klaus.Schmidinger@cadsoft.de> wrote:
> 
> > Is there anything VDR could do to achieve this?
> > I haven't found anything in the GNU Library Refrence Manual that would
> > allow an application to limits the size of the system's disk buffers
> > for a particular file handle.
> 
> I think VDR can nothing do here, except you want to implement your own
> video filesystem on top of raw disks. ;-)
> 
> This functionality should either be a property of the underlying
> filesystem (either manually selected during mount or automatically by
> using heuristics), or better the general file management setable per
> file with fcntl() (allowed buffer size). In most UNIX systems this could
> be implemented very easily because the pages currently used by a file
> are on a sequential list of the vnode. Reusing or dropping old pages in
> a fifo manner is easy to do. But I haven't looked into Linux in this
> regard. May be someone else already familar with the Linux way can look
> into this.
> 
> The only thing VDR would have to do is to use fcntl() after opening a
> video file for reading or writing.

That's pretty much what I had in mind when I asked "Is there anything VDR
could do to achieve this?". I certainly don't want to implement my own
file system ;-)

Klaus
-- 
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Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
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