incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Dathan Pattishall <datha...@gmail.com>
Subject Re: what is the expected result of changing this in storage.conf
Date Wed, 04 Aug 2010 02:22:36 GMT
Thanks for the link but that doesn't answer my question. I happen to know
quite allot about tuning Linux/Solaris/*NIX. I'm trying to figure out the
limits in cassandra, when it breaks, and why.

So, anyone know of or published benchmarks on messing with these values?

On Tue, Aug 3, 2010 at 7:08 PM, Jonathan Ellis <jbellis@gmail.com> wrote:

> You need to find out where your bottleneck is, before you start trying
> to mitigate it.  Some good first steps are at
> http://spyced.blogspot.com/2010/01/linux-performance-basics.html
>
> On Tue, Aug 3, 2010 at 9:03 PM, Dathan Pattishall <dathanvp@gmail.com>
> wrote:
> > Do reads at high concurrency get a boost if I where to raise this value?
> >
> >   <ConcurrentReads>8</ConcurrentReads>
> >   <ConcurrentWrites>32</ConcurrentWrites>
> >
> > Any benchmarks/reports showing a good sweet spot per CPU core?
> >
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of Riptano, the source for professional Cassandra support
> http://riptano.com
>

Mime
View raw message