Re: [patches] Add support for smaller regex implementation

["Carlos O'Donell" <carlos@xxxxxxxxxxxxxxxx>]

On Tue, Nov 11, 2008 at 11:16 AM, Maxim Kuvyrkov <maxim@xxxxxxxxxxxxxxxx> wrote:
> +config OPTION_POSIX_REGEXP_GLIBC
> +    bool "Regular expressions from GLIBC"
> +    depends OPTION_POSIX_REGEXP
> +    help
> +       This option group specifies which regular expression
> +        library to use.  The choice is between regex
> +        implementation from GLIBC and regex implementation from
> +        libiberty.  The GLIBC variant is fully POSIX conformant and
> +        optimized for speed; regex from libiberty is more than twice
> +        as small while still is enough for most practical purposes.
> +

It's twice as small, but on average how much slower?

If I had to make a decision I would like to know a rough estimate of
the speed decrease.

Cheers,
Carlos.