> > > .. and it seems the micro instance should be enough (with Linux) 613MB RAM. > It is only unclear what bursts of CPU means and > what their standard is (i.e., continuous CPU usage ok?) > > Yes, 613MB RAM should be enough. You can confirm it experimentally by running JBT in the trading or forward testing modes with this options: -Xms512M -Xmx512M. In regards to the CPU usage, JBT consumes very little, unless it's running the optimizer. The only possible issue withe "micro" instance is that it lists the I/O performance as "low", compared to the "moderate" for the small instance. If the "I/O" refers to the disk I/O, we don't care, as JBT uses very little of that. However, if this refers to the network throughput, it could mean that the latency may be more significant with the "micro" instance. * Micro Instance* 613 MB memory Up to 2 EC2 Compute Units (for short periodic bursts) EBS storage only 32-bit or 64-bit platform I/O Performance: Low API name: t1.micro * Small Instance* 1.7 GB memory 1 EC2 Compute Unit (1 virtual core with 1 EC2 Compute Unit) 160 GB instance storage 32-bit platform I/O Performance: Moderate API name: m1.small
I'll probably sign up for the "micro" instance, and see how it goes. -- You received this message because you are subscribed to the Google Groups "JBookTrader" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jbooktrader?hl=en.
