https://bugs.freedesktop.org/show_bug.cgi?id=44705
Bug #: 44705
Summary: Improve DMG file size for Mac OS X version
Classification: Unclassified
Product: LibreOffice
Version: LibO Master
Platform: Other
OS/Version: Mac OS X (All)
Status: UNCONFIRMED
Severity: enhancement
Priority: medium
Component: Installation
AssignedTo: [email protected]
ReportedBy: [email protected]
Apache OOo Bugzilla – Bug 105540
I reported it in 2009 and it was closed. I think it needs to be revisited given
the fact that CPU's are faster and people have faster drives/bandwidth (e.g.,
SSD drives). Doing what I describe below save me about 24 MB with LL 3.4.5b2
for the Mac (intel dmg. file).
Below is a redacted cut/paste from 105540:
jorgequinonez 2009-10-02 11:00:50 UTC
OpenOffice dmg file for the Mac OS X could potentially be far smaller.
The current Mac OS X (intel) dmg file size for OO 3.1.1 is 179.4 MB on my
MacBookPro. Using built in system tool (command line tool (i.e., hdiutil)] in
Mac OS X, the dmg file was compressed to 158.4 MB by converting it to a
bzip2-compressed image (UDBZ) (which only works on Mac OS X 10.4 and later).
Using UDBZ saved more than 20 MB. Implementing UDBZ (bzip2-compressed images)
could save lots of MB's in bandwidth.
Comment 1 Joost Andrae 2009-10-02 17:08:31 UTC
ja->is: maybe something to look at
Comment 2 jorgequinonez 2009-10-02 19:59:12 UTC
I forgot to say in my original comment that using UDBZ saved 11.7% in file size
compared to the original dmg file (179.4 -> 158.4 MB). A 21 MB reduction.
Comment 3 [email protected] 2009-10-03 01:02:18 UTC
packaging is already damn slow on mac, so filesize is not everythingâ€
Comment 4 jorgequinonez 2009-10-03 23:46:17 UTC
cloph, I wonder if this the time this would add to the total time of packaging
would be negligible? It would be interesting to see if it made it any slower.
It can't take more several minutes to compress several hundred meg's on dual
core
Comment 5 [email protected] 2009-10-05 11:24:03 UTC
Okay, this requires only one little change in
solenv/bin/modules/installer/simplepackage.pm from UDZO to UDBZ. Changing this
will be easy.
But there are other disadvantages:
Mounting the disk image requires more time.
Copying the files to application folder takes more time.
Adding dv, of and macport to cc
Comment 6 [email protected] 2009-10-05 11:46:59 UTC
The images compressed with the option UDBZ are way slower than the ones we
currently use. Copying OpenOffice.org from such an image to the local hard disk
took 105 seconds compared to 22 seconds for the old format (tested with a mac
mini).
Comment 7 [email protected] 2009-10-05 12:23:17 UTC
reassigning to default owner...
Comment 8 Olaf Felka 2009-10-06 11:29:34 UTC
- pro: saving bandwidth
- con: slowing down packaging, increasing installation or mounting disk image
time
So I would prefer to keep the build process as it is
@ md: Would you like to decide?
Comment 9 [email protected] 2009-10-06 13:30:38 UTC
MD: Based on the data in this issue I reject this request to make use of UDBZ
format. The performance decrease would be a major regression.
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