Re: python and ARM memory types

2015-10-06 Thread voxner
The main intent to use python was because it was easier to code the
algorithms. Also I was hoping to reuse the parallel algorithms
specifically iterative ones where we have some sort of control thread
that distributes data between the threads.

Now I am planning to have 2 different set of kernel with malloc that
returns WB and WT memory respectively. Then run the parallel python
program on top of that.

On 6 October 2015 at 15:08, Laura Creighton  wrote:
> It is not clear to me if any of the tools that come with volutility are
> going to be of any use, but I figure it is worth a look, at any rate.
>
> https://github.com/volatilityfoundation/volatility
>
> I seem to have replied directly, at any rate I mentioned this yesterday
> but don't see it in the mailing list archives.
>
> Laura
>
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python and ARM memory types

2015-10-04 Thread voxner . dev
I am running python in the ARM architecture (arm64 to be exact). 

The CPU Arch I use has clusters (2 big cores in a cluster and 2 small cores in 
another cluster think : A57, A53). It's going to be run in Ubuntu 14.04

I am trying to run traffic that stresses the interconnects of the clusters. One 
example is dekker's algorithm : pin first process to 1 cluster and another 
process to another cluster and check the algo (using multiprocessing library).

Also I am also trying to run "streaming" traffic - the kind of traffic that you 
don't want in the cache because it is non-temporal. 

But how do I specify (streaming,write-combining,write-back) memory types in 
python ? Is there a library that I can use ? I am thinking of programming some 
fixed memory space (say 0x1000_000 - 0x2000_000) as "WC or WT or streaming" 
using the OS and then try to use the mmap facility in python. 

What set of libraries can I use ? Where should I start ? Fixed memories are 
discouraged so what kind of alternatives I can use ?

Thanks,
Vox
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