[Insight-users] accelerate reading (and writing)

[Mathieu Malaterre]

On Tue, Oct 14, 2008 at 6:16 PM, Sean McBride <sean at rogue-research.com> wrote:
> On 10/13/08 10:38 PM, Thorsten W. said:
>
>>you know, i'am working with large image matrices.
>>I reading a 1.88GB 26000x26000x24Bit BMP File. It takes 5 minutes!
>>Writing tooks 4 minutes.
>>
>>Is there any possibility to update this process aside from update my pc?
>
> First you must determine what is causing the slowdown.  That's a lot of
> data to be sure, but you should measure with a profiler to identify the
> bottleneck.  Once the bottleneck is know, it will be clearer how to
> potentially improve things.
>

You can access the raw number of your system using hdparm (MacOSX is FreeBSD...)

http://gentoo-wiki.com/HOWTO_Use_hdparm_to_improve_IDE_device_performance#Benchmarking_devices


-- 
Mathieu