Re: A few suggestions for bugzilla mail to gcc-bugs

[Daniel Berlin <dberlin at dberlin dot org>]

On Mon, 2 Jun 2003, Daniel Jacobowitz wrote:

> On Mon, Jun 02, 2003 at 05:33:15PM -0400, Daniel Berlin wrote:
> >
> >
> > On Mon, 2 Jun 2003, Andreas Schwab wrote:
> >
> > > Daniel Jacobowitz <drow@mvista.com> writes:
> > >
> > > |> Can you query the compressed size more quickly?  We don't need to be
> > > |> precise here...
> > >
> > > "gzip -l" should do the trick, provided that the input is seekable.
> > This isn't shell script, it's perl, forking a new process in a very often
> > used cgi script for every single attachment is *not* a good idea.
> >
> > But that's besides the point anyway.
> > The data is *not* in gzip format in memory.
> > It has no gzip header with the size in it in front.
> >
> > The *only* way to get the size is to decompress it.
> > I could, of course, convert them all to be in-memory gzip files, but i'm a
> > bit busy with other things at the moment to care about this.
> > :)
>
> I still think we should have some way to get at the compressed size.
> But I assume it's in the DB somewhere and databases were never my
> strong point.

Yes, that's trivial.
But the compressed size is sometimes very far off, and it would trick
people into thinking it was going to take 10x less size than it does.

I picked a random C++ preprocessed file:

800k uncompressed,
89k compressed

that's like 9:1.

>
> --
> Daniel Jacobowitz
> MontaVista Software                         Debian GNU/Linux Developer
>