https://bugs.freedesktop.org/show_bug.cgi?id=57530
--- Comment #5 from Markus Mohrhard <[email protected]> --- (In reply to comment #3) > I just got done triaging this one and here are my results: > > Version|file format|time to open (seconds) > 3.6.3.2 | xls | 25.5 > 3.6.3.2 | ods | 8.1 > 4.1.0.0alpha | xls | 29.5 > 4.1.0.0alpha | ods| 6.3 > > I don't have a version of OOo to try with. I suspect our differences are > because of hardware. > > I'm going to mark this as NEW against version 4 and put regression (because > of the 25% decrease in speed). My bigger concern is that both versions have > such a huge difference in time to open between xls and ods. Also interesting > point is that the ods file is substantially bigger than the xls file (more > than 50% larger). This difference is expected. ODS is our native format and fits very well to our internal document model. XLS is a reverse engineered alien format that has to be mapped to our internal document model. Additionally we are not spending that much time on improving the performance of the XLS import as ODS and XLSX are the file formats for the future. > > Developers might want a second bug opened to reflect the difference in time > between ods and xls (vs. the performance difference between 3.6+ and 4+) but > I'll hold on that until requested. No. It is known and expected. > > NEW (confirmed) > Normal (performance/regression related) > High (performance/regression of 25% in speed) for a larger document I > suspect it would be a lot more than 6 seconds difference) 6 or 8 seconds for an ODS file is already a bigger file. > > Whiteboard: regression perf (performance regression) > > Thanks for the file, a developer may request it at some point, if they do > please send in there way as I may miss the request in the chaos of my emails > :) I can have a look at it. However this might not be as bad as you think. Measuring load times without callgrind is not precisely enough that you can be sure that there is really a performance problem. -- You are receiving this mail because: You are the assignee for the bug.
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