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From "Hagos, A.S." <A.S.Ha...@tue.nl>
Subject RE: what is more important (RAM vs Cores)
Date Fri, 12 Oct 2012 09:17:13 GMT
Hi there,
My application is uses Cassandra to store abstracted sensor data from a sensor network in
large building (up to 3000 sensors).
For now I am starting one node in one floor of the building, for the future it will definitely
be a cluster. Some of the sensors have up 16HZ sampling rate.

And now I want to make a decision if I have to focus on big RAM or large number of cores.
greetings 
Ambes
________________________________________
From: Romain HARDOUIN [romain.hardouin@urssaf.fr]
Sent: Friday, October 12, 2012 10:57 AM
To: user@cassandra.apache.org
Subject: Re: what is more important (RAM vs Cores)

Hi,

Sure it depends... but IMHO 6 GB is suboptimal for big data because it means 1,5 GB or  2
GB for Cassandra.
Maybe you could elaborate your use case. You really want a one node cluster ?

cheers,
Romain

wang liang <wlahhn@gmail.com> a écrit sur 12/10/2012 10:36:15 :

> Hi, Hagos,
>
> I think it depends on your business case. Big RAM reduce latency and
> improve responsibility, High number of cores increase concurrency of
> your app. thanks.

> On Fri, Oct 12, 2012 at 4:23 PM, Hagos, A.S. <A.S.Hagos@tue.nl> wrote:
> Hi All,
> For of my projects I want to buy a machine to host Casssandra database.
> The options I am offered are machines with 16GB RAM with Quad-Core
> processor and 6GB RAM with Hexa-Core processor.
> Which one do you recommend, big RAM or  high number of cores?
>
> greetings
> Ambes
>

>
> --
> Best wishes,
> Helping others is to help myself.

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