On Tue, May 05, 2015 at 11:48:46AM +0100, cj wrote:
> In article <20150505103028.gg19...@kyllikki.org>,
>    Vincent Sanders <vi...@netsurf-browser.org> wrote:
> > This change should be beneficial to RISC OS users as filecore is
> > (apparently) dreadful at this kind of usage pattern.
> 
> I wonder if this is because RISC OS files are 'defragmented' all the
> time - I think I am correct in saying that when a file becomes too
> big for the contiguous space it currently occupies, it is copied into
> a larger block of free space. This means that as the file grows, it
> may be regularly being copied somewhere else on the disc, and with
> files that may be hundreds of MB in size, this will be slow - very
> much so when the drive is an SD card.

Ish.  FileCore has supported fragmented files for a long time (ISTR E
implements this).  It was only earlier versions that didn't support
fragmented files and thus had to rearrange on file growth.

B.

Reply via email to