[TUHS] Re: "Webster's Second on the Head of a Pin"?

[Douglas McIlroy <douglas.mcilroy@dartmouth.edu>]

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Thanks for the advice. I somehow had inferred from the man page that 512M
was the default. In any event, it doesn't move the needle on compression
ratio.

Doug

On Tue, Mar 11, 2025 at 10:47 AM Jeff Johnson <trnsz@pobox.com> wrote:

> As far as getting maximum compression from lzip, `lzip -9 -s 512Mi`
> is usually the preferred invocation.  I think the default dictionary
> size at -9 is 64MiB, but that's not that relevant I guess, unless
> we are comparing different methods and trying to see about what
> ratios different algorithms get at similar memory usage.
>
> --
> Jeffrey H. Johnson
> trnsz@pobox.com
>
> On Mon, Mar 10, 2025, at 8:23 PM, Douglas McIlroy wrote:
> > Gnu lzip -9  got a 3.92 compression factor , while Morris-Thompson got
> 4.52.
>
> --
> Jeffrey H. Johnson
> trnsz@pobox.com
>
> On Mon, Mar 10, 2025, at 8:23 PM, Douglas McIlroy wrote:
> > Gnu lzip -9  got a 3.92 compression factor , while Morris-Thompson got
> 4.52.
>

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