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From Sheng Chen <chensheng2...@gmail.com>
Subject Re: stress.py bug?
Date Tue, 22 Mar 2011 08:21:09 GMT
I am just wondering, why the stress test tools (python, java) need more
threads ?
Is the bottleneck of a single thread in the client, or in the server?
Thanks.

Sean

2011/3/22 Ryan King <ryan@twitter.com>

> On Mon, Mar 21, 2011 at 4:02 AM, pob <peterob333@gmail.com> wrote:
> > Hi,
> > I'm inserting data from client node with stress.py to cluster of 6 nodes.
> > They are all on 1Gbps network, max real throughput of network is 930Mbps
> > (after measurement).
> > python stress.py -c 1 -S 170000  -d{6nodes}  -l3 -e QUORUM
> >  --operation=insert -i 1 -n 500000 -t100
> > The problem is stress.py show up it does avg ~750ops/sec what is 127MB/s,
> > but the real throughput of network is ~116MB/s.
>
> You may need more concurrency in order to saturate your network.
>
> -ryan
>

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