Profiling the ODT import of a large mostly text-only document, it turns out we spend ~3% of the time in updating the progressbar. So if there is a relatively simple fix to only update the progressbar once for every percent that would (hopefully) still make the UX acceptable, with the benefit of the import being slightly faster.
Miklos Vajna committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=20ad9893d5d3be13d8aa17764e483afaa083b5c0 tdf#100134 xmloff: only update the progressbar twice for every percent It will be available in 5.3.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Miklos Vajna committed a patch related to this issue. It has been pushed to "libreoffice-5-2": http://cgit.freedesktop.org/libreoffice/core/commit/?id=2ece89b68513d89700e20962c531579d20676896&h=libreoffice-5-2 tdf#100134 xmloff: only update the progressbar twice for every percent It will be available in 5.2.0.1. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Miklos Vajna committed a patch related to this issue. It has been pushed to "libreoffice-5-1": http://cgit.freedesktop.org/libreoffice/core/commit/?id=0fac4acb32baf59558f46d42ce31751948f00da3&h=libreoffice-5-1 tdf#100134 xmloff: only update the progressbar twice for every percent It will be available in 5.1.4. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.