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From S Ahmed <sahmed1...@gmail.com>
Subject Re: Cassandra benchmarking on Rackspace Cloud
Date Mon, 19 Jul 2010 18:26:28 GMT
I'm reading what this thread and I am a little lost, what should the
expected behavioral be?

Should it maintain 53K regardless of nodes?

nodes   reads/sec
1       53,000
2       37,000
4       37,000

I ran this test previously on the cloud, with similar results:

nodes   reads/sec
1       24,000
2       21,000
3       21,000
4       21,000
5       21,000
6       21,000




On Mon, Jul 19, 2010 at 2:02 PM, David Schoonover <
david.schoonover@gmail.com> wrote:

> > Multiple client processes, or multiple client machines?
>
>
> I ran it with both one and two client machines making requests, and ensured
> the sum of the request threads across the clients was 50. That was on the
> cloud. I am re-running the multi-host test against the 4-node cluster on
> dedicated hardware now to ensure that result was not an artifact of the
> cloud.
>
>
> David Schoonover
>
> On Jul 19, 2010, at 1:38 PM, Jonathan Ellis wrote:
>
> > On Mon, Jul 19, 2010 at 12:30 PM, David Schoonover
> > <david.schoonover@gmail.com> wrote:
> >>> How many physical client machines are running stress.py?
> >>
> >> One with 50 threads; it is remote from the cluster but within the same
> >> DC in both cases. I also run the test with multiple clients and saw
> >> similar results when summing the reqs/sec.
> >
> > Multiple client processes, or multiple client machines?
> >
> > --
> > Jonathan Ellis
> > Project Chair, Apache Cassandra
> > co-founder of Riptano, the source for professional Cassandra support
> > http://riptano.com
>
>

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