Joined: Jun 17, 2006 Posts: 3 Location: Puerto Rico
Posted: Sun Jun 18, 2006 8:36 pm Post subject: Why is NeoOffice slow compared to OOo?
I was wondering this recently while I was editing a 30+ paper. For example, the text rendering when I move the sidebar quickly is *very* slow. This does'nt happen in OOo.
I know people say that Java is slow but: it's really the Java code that slow things down?
or
it's just some refinement in the code that with time Neo will get?
The OOo event and drawing models are all finely-tuned by Sun's engineers for X11 and Windows, and these models tend not to mesh well with Apple's native Mac OS X event and drawing models, so there's a sometimes-significant penalty there.
Text, for instance, is rendered through ATSUI to give all the native font goodness and advanced features (like Mac OS X's best kashida implementation IMO ), and X11 doesn't have all the great native features, anti-aliasing, etc., nor does OOo provide the right-sized chunks of text that make ATSUI fastest
The other common issue in this area is that Java is somewhat heavy in its memory demands, so if you're running a machine with low memory (768 MB or less, these days), especially with many other apps open, that will cause paging and swapping and seriously degrade performance.
Smokey _________________ "[...] whether the duck drinks hot chocolate or coffee is irrelevant." -- ovvldc and sardisson in the NeoWiki
Joined: Jun 17, 2006 Posts: 3 Location: Puerto Rico
Posted: Mon Jun 19, 2006 12:53 am Post subject:
And what about slideshows on Impress? Any kind of transition and/or effect makes the show unusable. Well, at least on my system:
PowerBook G4 1Ghz
1.25 GB RAM
Nothing running in the background but perhaps Firefox
Don't get me wrong, I like NeoOffice and all the effort of this community, but I think my system is up-to-date with normal software requirements and I'm wondering why Neo does'nt give me the performance OOo gives.
Is there any option or setting I could change to speed up things a little bit?
I have a Powerbook G4, 1 MB and had to clean up a lot of problems with broken fonts, then Haxies and Background processes (Seti@home, Folding@home, etc). At least I avoided the low memory problem.
Please check out the trouble shooting tips and see if that improves your run speed.
Joined: Jun 17, 2006 Posts: 3 Location: Puerto Rico
Posted: Mon Jun 19, 2006 9:27 am Post subject:
I'm running NeoOffice 2.0 Alpha 3 Patch 3.
Tried disabling the Apache server which I forgot was on, but it does'nt help. I also disabled some Asian fonts.
Either we need some hacking of the code for performance gains (which I guess is a feature request from my part), or I need one of those shiny new MacIntels..
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), and X11 doesn't have all the great native features, anti-aliasing, etc., nor does OOo provide the right-sized chunks of text that make ATSUI fastest 
