https://bugs.documentfoundation.org/show_bug.cgi?id=120837

--- Comment #4 from Terrence Enger <lo_b...@iseries-guru.com> ---
Created attachment 146699
  --> https://bugs.documentfoundation.org/attachment.cgi?id=146699&action=edit
bibisect in linux-64-6.1, tail of terminal output

Working on debian-buster in the bibisect-linux-64-6.1 repository, I
see that the bug came into LibreOffice:

          commit    s-h       date        time
          --------  --------  ----------  -----
    good  10fffef2  a61747c2  2018-02-01  10:53:26
    bad   dcc8ce9e  e02efb62  2018-02-01  10:54:22

and

    commit e02efb621fe672aa52e56caa916cf5c3fd0a9cb8
    Author: Tomaž Vajngerl <tomaz.vajng...@collabora.co.uk>
    Date:   Thu Feb 1 15:28:53 2018 +0900

        Change bitmap table to store XBitmap instead of GraphicObject URL

        As we want to get rid of GraphicObject URLs for the more robust
        image life-cycle handling, it was necessary to change the way
        bitmap table stores and handles images, so that they always
        store a Graphic object (wrapped in UNO object that provides the
        XGraphic and XBitmap interface).

        In addition this changes loading and saving from ODF (xmloff) and
        OOXML (oox) filters so they don't depend on GraphicObject URL
        anymore, but load or save directly to / from  XGraphic or XBitmap.

        Change-Id: I2b88e10056e7d6c920249d59188f86b1a5a32d21
        Reviewed-on: https://gerrit.libreoffice.org/49074
        Tested-by: Jenkins <c...@libreoffice.org>
        Reviewed-by: Tomaž Vajngerl <qui...@gmail.com>

Within the bibisect process, the CPU time for Save-As in "good"
versions was from 2.37 to 2.52 seconds and in the versions I deemed
"bad" from 13.35 to 13.80 seconds.

I have not found the earlier slowdown that Xisco reported in comment
3, so I am leaving keyword bibisectRequest.

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