Benchmarks
Hardware
* Performance per node.
The
green values are measured according to CERN procedures.
Virtual Machines
Available Resources
This are the CPU recourses available on Phoenix. HEP-SPEC06 is measured according to the CERN procedures.
* 4 HEP-SPEC06 = 1 kSI2k
Possible Improvements
Not all of the jobs are CPU bound. Many of them are waiting for data. Therefore we could enable Hyper Threading and allow 12 jobs per WN. The other 4 cores will be reserved for the OPS/SGM and CSCS queue only.
- Advantages
- More CPU slots 1152 vs. 768
- Better utilization of CPU
- Better overall performance
- Better match of CPU pledges for 2010 (about 13% more performance, see below)
- Cores of CSCS queue available for testing; faster detection/debugging of problems
- Disadvantages
- Possibly less performance per single job slot
- Accounting less accurate
- Performance of a single job depends a lot on the number of running jobs / WN
* 4 HEP-SPEC06 = 1 kSI2k
Resources
--
PeterOettl - 2010-02-18