[Libreoffice-bugs] [Bug 113539] FILEOPEN ODT: Slower opening of file containing a large table (25 rows 2000 columns)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=113539

--- Comment #10 from Björn Michaelsen <bjoern.michaelsen at libreoffice.org> ---
Hi all,

so IIRC the old implementation was unsafe at any speed: It had shared ownership
of the object an manually tracked it from multiple places (badly).

So whatever the solution to this is, its not reverting to that.

Both the before and after the path, the object was/is heap allocated. The
shared_ptr timingwise just adds synchronization. The way forward would be one
of:

- unfsck this design, so that in doesnt need shared ownership
- make whatever is using massive amounts of unocrsrs in these example files use
something more lowlevel (and faster) instead

Clearly 1/ is the best long-term solution, but it might be quite tricky to
unwind this hairball (though admittedly I havent look at trying that yet).

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