[Libreoffice-bugs] [Bug 118985] LibreOffice Impress very slow loading PPTX document

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=118985

Drew Jensen <drewjensen.inbox at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |drewjensen.inbox at gmail.com
            Summary|LibreOffice Impress hangs   |LibreOffice Impress very
                   |during opening up a         |slow loading PPTX  document
                   |presentation document       |

--- Comment #2 from Drew Jensen <drewjensen.inbox at gmail.com> ---
Well, I tired this first using the 6.2 Master build from earlier today. (Ubuntu
18.04, 64bit 4core AMD, w/8 gig ram, using wayland)

Opening the pptx file pegged one processor at 100% for 2 minutes, 38 seconds of
CPU time. 

Saved it as an odp and reopened it, one processor pegs at 100% for 28 seconds
of CPU time.

Using version 5.4.7 same OS

The pptx file uses 100% of 1 cpu for 2 minutes 19 seconds of CPU time.

The odp version uses 100% of 1 cpu for 21 seconds of CPU time.

In all cases Libreoffice was closed between opening the different file types so
each was a first document load for the session. 

It seems a bit excessive for the pptx format. 

At no point did the system hang however. (updated the summary to reflect that)

Also, the file is tagged with a line on the bottom of each screen about having
gone through a converter to PDF format, if this file was read in to MSO as a
pdf and converted to a pptx that could maybe explain some of this.

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