[Libreoffice-bugs] [Bug 42742] FILEOPEN: Documents with linked images take a long time to load

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Jul 6 10:04:16 CEST 2012


https://bugs.freedesktop.org/show_bug.cgi?id=42742

--- Comment #7 from Yaytay <jim.talbut at groupgti.com> 2012-07-06 01:04:16 PDT ---
There isn't any VBA in the document.

My feeling is that you will solve the "too long to import document" problem by
resolving the issues with loading pictures.

A quick test with MS Word and Wireshark seems to indicate that it is 
1) Using some kind of cache (there are no network hits for the initial display
with the first picture).
2) Other pictures are downloaded only when displayed.
3) Each picture download takes 0.3s - 0.6s.
4) Some pictures are downloaded using an "If-Modified-Since" header and get a
304 Not Modified response in ~0.1s.

So the thing that makes MS Word so quick seems to be that it inherently uses
the IE cache, which may not be feasible for LO - but that only accounts for a
factor of 5-10 difference (so the early OOo results).

It seems to me that LO is doing something with the images that is making it
take a long time and download the image four times.

But this is all just analysis of the problem with inadequate information, the
thing that I actually need to be quicker is the complete "open doc, save as
PDF" cycle and any route you can take to achieve this is fine by me,

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