Today, Rackspace opened up the beta for Cloud Servers in the UK. This is a quick performance comparison with the US cloud, using SysBench.
The test was done using four servers (two on each site, one 256MB instance and one 512MB). All servers ran Ubuntu 10.10.
Without further ado, here’s the results (less is better).
| Product | SysBench CPU | Sysbench Memory | Sysbench File I/O |
| US 256 | 4.0s | 184.5s | 22.6s |
| US 512 | 4.0s | 185.7s | 20.3s |
| UK 256 | 4.0s | 190.2s | 21.4s |
| UK 512 | 4.0s | 191.1s | 18.5s |
There seems to be good capacity at both sites, performance was almost identical.
The following commands where used to do the benching, interesting values was the total time to run the test.
sysbench --num-threads=4 --test=cpu run sysbench --num-threads=4 --test=memory run sysbench --num-threads=4 --test=fileio --file-test-mode=rndrw prepare sysbench --num-threads=4 --test=fileio --file-test-mode=rndrw run
