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All of my points are regarding the Gateway, not TWS. I don't use any historical data methods within my application. Again, if you want to understand what's happening, suggest you profile/log.

Totally agree it shouldn't be necessary and in most cases thankfully it's not. Unfortunately for regulus, it seems the next logical step if he wants to see what activity is creating the issue. Regulus, in case you're interested to take a look, it's quite easy. Simply add the following command...

Sorry, I meant version 938.1. Below is a screenshot of gateway 938.1 heap usage over a day running on Debian 6.0 (32-bit) with Oracle JVM 1.6.0_45. For my application at least which admittedly isn't very demanding, I don't see any issue. I run with the following Java switches...

Exactly. The BLS in the US has changed their methodology numerous times. Using the prior method, it's around 9.5%. You can see the official vs prior methods here: http://www.shadowstats.com/alternate_data/inflation-charts The government has a strong incentive to keep the number low, since...

Didn't mean to imply that you were, perhaps obsessed was a poor word choice ;) You should care what the garbage collector does, because it seems you are concerned about the performance and memory footprint of the application, and the GC is directly impacting this. I can say with a good degree...

How are you monitoring the memory consumption? I presume you're aware that the number shown in windows is the JVM foootprint, not the memory in use by the application. You need to profile or turn on GC logging if you want to see what's actually going on. A little premature to confirm a memory...

Short I hope ;). FYI, Andrew Left put a pretty scathing report out recently with some interesting points: http://www.citronresearch.com/angies-list-bad-idea-bad-business-wall-street-fiction/

I completely agree. The software is a design nightmare. Just suggesting a workaround if you regularly use the same columns as I do.

Well it changes the layout for me and remembers the columns I've chosen. Without setting the columns in the global config, they are reset every time I search, as per Bob111's comment that I was responding to.

Edit->Global Configuration Information Tools->Scanner->Scanner Layout Agree that it should just save your customizations.

Yes, but per my last point and cdcaveman's comment, building your own system should only be considered if pre-built / open-source systems don't fulfill your requirements, which you are yet to detail. Language, platform, data source, broker etc. are all highly dependent on what you're trying...

Not sure what you mean. The IB API supports C++, Java, and .NET languages via ActiveX. TWS is written in Java and runs on Windows/Mac/UNIX. Each of the API implementations is actually just a thin wrapper around a socket that communicates with TWS. FYI, IB just announced they're moving the API...

And for other languages, there's a pretty good list of options here: http://stackoverflow.com/questions/2861/options-for-html-scraping

Because in any currency you're going to be using, prices are all fractions of 10^n. They can therefore be represented exactly with scaled int/longs. Floating point representations (float/double) while very very precise, are not exact as they use a base-2 representation. They therefore cannot...

I believe this is a limitation on the paper account. I noticed the same behavior, where ARCA OPG limit orders would be rejected, while NYSE OPG limit orders were accepted. I contacted IB and was told that ARCA don't accept OPG orders prior to 7am and that for a real account, IB will hold the...