Download it now!
Bug 135316 - FILEOPEN DOCX: Time to open from 18 to 30-45 seconds
Summary: FILEOPEN DOCX: Time to open from 18 to 30-45 seconds
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
(earliest affected) release
Hardware: All All
: medium normal
Assignee: Not Assigned
Keywords: bibisectRequest, filter:docx, perf, regression
Depends on:
Blocks: DOCX-Opening
  Show dependency treegraph
Reported: 2020-07-30 12:22 UTC by Telesto
Modified: 2021-01-05 10:33 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Sample DOCX exported with 7.1 (6.06 MB, application/vnd.openxmlformats-officedocument.wordprocessingml.document)
2020-07-30 12:24 UTC, Telesto
Source ODT (6.14 MB, application/vnd.oasis.opendocument.text)
2020-07-30 12:24 UTC, Telesto

Note You need to log in before you can comment on or make changes to this bug.
Description Telesto 2020-07-30 12:22:30 UTC
FILEOPEN DOCX: Time to open from 18 to 30-45 seconds

Steps to Reproduce:
1. Open the attached docx
2. Monitor they time to file shows Or they CPU time taken until CPU drop to around %

Actual Results:
45 seconds

Expected Results:
16-18 second with until file shows

Reproducible: Always

User Profile Reset: No

Additional Info:
Found in
Version: (x64)
Build ID: <buildversion>
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Raster; VCL: win
Locale: nl-NL (nl_NL); GI: nl-NL
Calc: CL

and in 

and in

and in
Comment 1 Telesto 2020-07-30 12:24:05 UTC
Created attachment 163770 [details]
Sample DOCX exported with 7.1

Sample DOCX export with 7.1. Don't think it's they export side, but import
Comment 2 Telesto 2020-07-30 12:24:38 UTC
Created attachment 163771 [details]
Source ODT
Comment 3 Xisco Faulí 2020-07-30 13:12:57 UTC
today my computer is quite slow for some reason. anyway, it takes

real	3m29,005s
user	3m29,161s
sys	0m5,550s


Build ID: 231e1e416c039d1f9724962a89cf0573a3db48a2
CPU threads: 4; OS: Linux 4.19; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded
Comment 4 Gabor Kelemen 2021-01-05 10:33:31 UTC
This contains 880 images, import of that may be the culprit.