On 27 Jun 2012, at 11:50, Yousuf Fauzan wrote: > Its not about the difference in throughput in the two approaches I took. > Rather, the issue is that even 200 writes/sec is a bit on the lower side. > I could be doing something wrong with the configuration because people are > reporting throughputs of 2-3k ops/sec > > If anyone here could guide me in setting up a cluster which would give such > kind of throughput.
To get the kind of throughput I use multiple threads / workers. Have you looked at basho_bench[1], it is a simple, reliable tool to benchmark Riak clusters? Cheers Russell [1] Basho Bench - https://github.com/basho/basho_bench and http://wiki.basho.com/Benchmarking.html > > Thanks, > Yousuf > > On Wed, Jun 27, 2012 at 4:02 PM, Eric Anderson <ander...@copperegg.com> wrote: > 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 > > > > > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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