What about using quad core athlon x4 740 3.2 GHz with 8gb of ram and 256gb ssds?
I know it will depend on our workload but will be better than a dual core CPU. I think.... Jabbar Azam On 13 Apr 2013 01:05, "Edward Capriolo" <edlinuxg...@gmail.com> wrote: > Duel core not the greatest you might run into GC issues before you run out > of IO from your ssd devices. Also cassandra has other concurrency settings > that are tuned roughly around the number of processors/cores. It is not > uncommon to see 4-6 cores of cpu (600 % in top dealing with young gen > garbage managing lots of sockets whatever. > > > On Fri, Apr 12, 2013 at 12:02 PM, Jabbar Azam <aja...@gmail.com> wrote: > >> That's my guess. My colleague is still looking at CPU's so I'm hoping he >> can get quad core CPU's for the servers. >> >> Thanks >> >> Jabbar Azam >> >> >> On 12 April 2013 16:48, Colin Blower <cblo...@barracuda.com> wrote: >> >>> If you have not seen it already, checkout the Netflix blog post on >>> their performance testing of AWS SSD instances. >>> >>> >>> http://techblog.netflix.com/2012/07/benchmarking-high-performance-io-with.html >>> >>> My guess, based on very little experience, is that you will be CPU bound. >>> >>> >>> On 04/12/2013 03:05 AM, Jabbar Azam wrote: >>> >>> Hello, >>> >>> I'm going to be building a 20 node cassandra cluster in one datacentre. >>> The spec of the servers will roughly be dual core Celeron CPU, 256 GB SSD, >>> 16GB RAM and two nics. >>> >>> >>> Has anybody done any performance testing with this setup or have any >>> gotcha's I should be aware of wrt to the hardware? >>> >>> I do realise the CPU is fairly low computational power but I'm going to >>> assume the system is going to be IO bound hence the RAM and SSD's. >>> >>> >>> Thanks >>> >>> Jabbar Azam >>> >>> >>> >>> -- >>> *Colin Blower* >>> *Software Engineer* >>> Barracuda Networks Inc. >>> +1 408-342-5576 (o) >>> >> >> >
