Compressing formats

[Hironori KITAGAWA]

Hello Norbert,

> Do you think the patch can be adjusted for pdftex, too? 

I've adapted the patch to pdfTeX:
https://github.com/h-kitagawa/texlive-source/commit/f418c4284959c1306ddefc6e4086ef2140065516
(Changed files: web2c/texmfmp[-help].h, web2c/lib/texmfmp.c, 
  web2c/ac/web2c.ac and pdftexdir/am/pdftex.am. No changes to WEB sources)

My patch adds -conf-level option for specifying lz4 compression level to engines.


Result:
  latex-dev.fmt:    2686969 (former: 8067042)
  pdflatex-dev.fmt: 2687052 (former: 8067104)


On Wed, 4 Dec 2019 10:56:27 +0900
Norbert Preining <preining at logic.at> wrote:

> Hi Hironori,
> 
> > However, I choose lz4(hc) for decompression speed.
> 
> I agree. We use lz4 also for the backups in tlmgr due to its incredible
> speed and efficient compression.
> 
> >   but compression makes platex-dev.fmt smaller about 6.5MB (see above),
> 
> Do you think the patch can be adjusted for pdftex, too? 
> 
> Thanks for your work
> 
> Norbert
> 
> --
> PREINING Norbert                               http://www.preining.info
> Accelia Inc. + IFMGA ProGuide + TU Wien + JAIST + TeX Live + Debian Dev
> GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13


-- 
Hironori KITAGAWA <h_kitagawa2001 at yahoo.co.jp>