From: Francois Berenger <berenger@riken.jp>
Cc: caml-list <caml-list@inria.fr>,
batteries-devel@lists.forge.ocamlcore.org
Subject: Re: [Caml-list] Any library for reading/writing compressed files?
Date: Mon, 21 May 2012 10:20:28 +0900 [thread overview]
Message-ID: <4FB9985C.6040002@riken.jp> (raw)
In-Reply-To: <CAP5QFJkC409mSNAYwoqTo81D_Pyqyoa+D2Yhthzxc2XP7ksiJw@mail.gmail.com>
On 05/19/2012 10:27 AM, Adrien wrote:
> Also, don't compress Marshal's output, it'll suck.
My program generates large bitmasks:
ls -l X.mask.gz: 12K
gunzip X.mask.gz
ls -l X.mask: 2.1M
X.mask was generated by the Marshal module.
It was gzip -1 to compress.
The compression ratio looks amazing in my case
(which I measured in the first place before making
my program use it).
> Marshal already does RLE compression IIRC (that might help for
> situations constrained by memory-bandwidth) and that hinders other
> compressions. In particular, with xz, it'll really be a waste of time.
next prev parent reply other threads:[~2012-05-21 1:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-15 1:48 [Caml-list] Any tool for unit tests as comments in OCaml source? Francois Berenger
2012-05-15 2:08 ` Thibault Suzanne
2012-05-15 2:08 ` Edgar Friendly
[not found] ` <4FB1B60F.3060408@riken.jp>
2012-05-15 2:12 ` [Caml-list] Any library for reading/writing compressed files? Francois Berenger
2012-05-18 22:14 ` Richard W.M. Jones
2012-05-19 1:25 ` Adrien
2012-05-19 1:27 ` Adrien
2012-05-21 1:20 ` Francois Berenger [this message]
2012-05-21 6:11 ` Adrien
2012-05-15 5:29 ` [Caml-list] Any tool for unit tests as comments in OCaml source? Cedric Cellier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4FB9985C.6040002@riken.jp \
--to=berenger@riken.jp \
--cc=batteries-devel@lists.forge.ocamlcore.org \
--cc=caml-list@inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).