IB: Memory Issues

M

mskl

I have noticed that my TWS always gets slow at the end of the day. IB told me that I could increase memory usage by doing the following:


https://www.interactivebrokers.com/...guidebook/priceriskanalytics/custommemory.htm


I have increased the memory to 1200 MB and I still have issues. My computer has 32 GB of memory so there is no issue on my system.

You can monitor your memory usage by clicking Help - About Trader Workstation. When I do this I notice that my usage constantly goes up during the day. Every time I bring up an option chain - the heap memory goes up. But when I close the option chain - the memory doesn't go back down. Is this a memory leak? or is this what should happen?

The other solution IB offered was to use the 64 bit version but I can't because I use DDE links and this won't work with the 64 bit version. I could also shut down my TWS and bring it back up but then my DDE links will break.

Has anyone else experienced these memory issues?

Any idea if there is a way to clear memory cache without shutting down TWS?
 
My 64bit TWS memory heap is 353 of 759mb -- it's been open since 9:30 ET.

The RAM consumption via Windows7/TaskManager/Processes is 1,247,404K -- about average for post6pm; at start-up it is around 909,000K, but too, it rarely gets above 1,247,000-ish. (If it hits 1,500,000mb, CPU consumption becomes ginormous. CPU consumption (TWS process) is barely notable right now.

About once a week (or less), I have to do a restart because something caused a memory leak. My (Java-based) OpenOffice spreadsheet is 2.6 mb, as is my FireFox browser. So, "sometimes, they don't play well together...."

I would definitely give the 64bit TWS a shot, and see if the leak is stopped up. Like my set-up, maybe your issue is Java-interactions, and going the 64-bit route wouldn't make a difference. You haven't mentioned your TWS version, but I have noticed that, regardless of what we might hear from IB (about TWS issues being backwards compatible), my own experience has been that while updates are not a cure-all, they certainly seem to clean up any misunderstandings between my TWS and the resident IB servers.

I very much understand the desire to maintain a live-feed for your spreadsheet, but for myself, constructing a QuoteMonitor page as a data-set/repository allows me to File/Export/[to desktop]Export_Page_Content to a .csv file which is quickly copied into my spreadsheet.

No cures in there, but maybe some ideas.......
 
mskl said:
Jack Rab:

I have tired this but I get the Ddedll file is missing or out of date

https://ibkr.info/node/2155
More...

Yeah I get that every time I start up as well... but it doesn't matter. It's still working...

Although I just use activex... so I don't know about other stuff... I just know it works. The message is annoying, but that's all...
 
Okay. I found activex and standard DDE versions work quite similar. I'm not using activex the way it's supposed to I think, more like I did with DDE. Running macros that connect to their excel file...

So, the switch isn't much of a problem. Good luck!
 
I don't have this issue.

But I notice sometime between end Asian / Early europe session, I will get disconnect problem almost every day.
 
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