Hi all,
I am a newbie of Olio. I am now working on evaluating the performance of our
parallel file system dcfs3(a research project) on the web-application
workload. And I found Olio. It seems that Olio is a wonderful benchmark for
web2.0 applications. I plan to compare the performance of the benchmark
while using different filesystems(such as localfs, NFS, and our dcfs3) as
the filestore. but as my limited knowledge about Olio and Web2.0
applications, I have some questions about the benchmark.
1) What is the relationship between concurrent users, registered users, the
storage spaces used in mysql, and the storage spaces used in filestore?
It seems that more than 50G disk space will be consumed while loading
1000 concurrent users's files.
2) There are a lot components in a Web 2.0 application: Http Servers, MySql
Databases, Memcached instances and file storage. Each component may become
the bottleneck of the system if I didn't configure it right. Is there any
suggestion that how to configure a SUT(System under test) while comparing
the performance of the system using different filesystems as the backend
filestore. Such as, the scale of the test(the number of concurrent users),
the number of nodes used as httpserver, the number of memcached instances,
and so on.
And how to avoid the bottlenecks from other components while comparing
different filesystems as the filestore?
I am looking forward to your reply. And please forgive my limited knowledge
about Olio.
Thanks,
Samuel
