Thanks, Judson. I have a question about the EC2 micro, since you used it. What would you use to run GUI based apps such as TWSGateway and JBT on a Linux micro EC2 instance remotely?
On Sun, Jul 31, 2011 at 1:57 PM, Judson Wilson <[email protected]>wrote: > I've played with micro in different contexts, and I was not impressed. I > would not use it. It goes from fast to VERY slow over different periods of > time. > > I did compare small for 24 hours a day, I think, a while ago, and it just > didn't make sense. Maybe it does now. I am too lazy right now to wake up > at like 3AM to turn it on in the morning. > > 256megs of ram is enough, no problems there, so long as you are running one > single instance of JBT from the command line (not from within eclipse). > > Back when I did the math, linode was the best choice. > > > On Sun, Jul 31, 2011 at 9:27 AM, Eugene Kononov > <[email protected]>wrote: > >> >>> .. 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. >> > > -- > 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. > -- 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.
