On Jun 27, 2012, at 5:13 AM, Yousuf Fauzan <yousuffau...@gmail.com> wrote:
> Hi, > > I setup a 3 machine riak SM cluster. Each machine used 4GB Ram and riak > OpenSource SmartMachine Image. > > Afterwards I tried loading data by following two methods > 1. Bash script > #!/bin/bash > echo $(date) > for (( c=1; c<=1000; c++ )) > do > curl -s -d 'this is a test' -H "Content-Type: text/plain" > http://127.0.0.1:8098/buckets/test/keys > done > echo $(date) > > 2. Python Riak Client > c=riak.RiakClient("10.112.2.185") > b=c.bucket("test") > for i in xrange(10000):o=b.new(str(i), str(i)).store() > > For case 1, throughput was 25 writes/sec > For case 2, throughput was 200 writes/sec > > Maybe I am making a fundamental mistake somewhere. I tried the above two > scripts on EC2 clusters too and still got the same performance. > > Please, someone help The major difference between these two is the first is executing a binary, which has to basically create everything (connection, payload, etc) every time through the loop. The second does not - it creates the client once, then iterates over it keeping the same client and presumably the same connection as well. That makes a huge difference. I would not use curl to do performance testing. What you probably want is something like your python script that will work on many threads/processes at once (or fire them up many times). Eric Anderson Co-Founder CopperEgg
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