On 11/07/2014 05:01 AM, Luis Pabón wrote:
Hi guys, I created a simple test program to visualize the I/O pattern of NetApp’s open source spc-1 workload generator. SPC-1 is an enterprise OLTP type workload created by the Storage Performance Council (http://www.storageperformance.org/results). Some of the results are published and available here: http://www.storageperformance.org/results/benchmark_results_spc1_active . NetApp created an open source version of this workload and described it in their publication "A portable, open-source implementation of the SPC-1 workload" ( http://www3.lrgl.uqam.ca/csdl/proceedings/iiswc/2005/9461/00/01526014.pdf ) The code is available onGithub: https://github.com/lpabon/spc1 . All it does at the moment is capture the pattern, no real IO is generated. I will be working on a command line program to enable usage on real block storage systems. I may either extend fio or create a tool specifically tailored to the requirements needed to run this workload.
Neat! integration with fio could be interesting. We could then use any of the engines include the librbd one (I think there is some kind of gluster engine as well?)
On github, I have an example IO pattern for a simulation running 50 mil IOs using HRRW_V2. The simulation ran with an ASU1 (Data Store) size of 45GB, ASU2 (User Store) size of 45GB, and ASU3 (Log) size of 10GB.
Out of curiosity have you looked at how fast you can generate IOs before CPU is a bottleneck?
- Luis -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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