[haiku-development] Re: 64 bit
- From: Fredrik Andersson <fredrikandersson@xxxxxxx>
- To: "haiku-development@xxxxxxxxxxxxx" <haiku-development@xxxxxxxxxxxxx>
- Date: Tue, 09 Sep 2014 20:19:02 +0200
I think the main benefit is that a huge address space allows for filemapping
(which is a clever way to let the OS/MMU handle on demand loading/writing).
However is there really any sane person doing productivity business on Haiku
today?
I think it's clever to focus on having Haiku working on "hardware of the
yesteryears" both as it can breath new life into the machines and people are
probably less hesitant to install it on an old machine than their most current
once/if it ever gets to the point it attracts people who would normally not
consider it.
> 09 Sep 2014 kl. 18:31 skrev Stephan Aßmus <superstippi@xxxxxx>:
>
> Am 09.09.2014 18:22, schrieb Julian Harnath:
>> Stephan AÃmus <superstippi@xxxxxx> schrieb:
>>> I think that if a video editing app is starting to page data
>>> in 32-Bit, it probably has room for improvement.
>>
>> Don't forget though that video resolutions are always increasing - and
>> with them the data amounts. Having large amounts of RAM available is
>> good when your video editor supports things like automatically
>> prerendering parts of the video (composited from multiple tracks,
>> including filters, etc) in the background to RAM. 4 GB is quickly
>> exhausted then when dealing with large resolutions...
>> But yeah, currently there's no software on Haiku in shape to do that.
>
> I don't necessarily agree. How many 4K frames, possibly on multiple tracks
> can you pre-render in RAM? It will always be only small portions of the time
> line. And if you double the amount of physical RAM, you can still only play a
> slightly larger portion of the timeline. If you want the software to play
> smoothly more often than not, you need to pre-render to disk. There was video
> editing software long before 64-Bit computing, and it had smooth 4K playback
> (using caching on disk arrays).
>
> I think scientific apps operating on really large data sets are something
> different. But I agree with the general argument for 64 Bit anyway, it has
> lots of other benefits.
>
> Best regards,
> -Stephan
>
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