NT 7.0.0.17 crash with RAM building up

[NinjaTrader_Brett]

Hello,

This is managed by Garbage Collection automatically by .net. However so that I may test this how many strategies did you load when you say a bunch to see the results of the increased memory? Also what data feed provider are you using?

I look forward to assisting you further.

[MXASJ]

Here you go. I actually did seven screen grabs but the important two are below. Using the SampleMACrossover and a basket of 10 instruments, this is my memory usage according to Windows Resource Monitor:

No_Connections: 93M. This when I open Ninja.
Zen_IQ: 129M. This when I connect to Zen and IQFeed. No Strats loaded.
Load_Disabled: 135M. Load but not enable 10 SMA Example strats.
Load_Enable_T1: 143M. Enable all.
Disable_Enable_T2: 149M. Disable, then re enable all.
Disable_Enable_T3: 155M. Disable, then re enable all.
Disable_Enable_T4: 161M. Disable, then re enable all.

My concern is the with small footprint strats such a the SampleMACrossover, yes memory use increases with a enable/disable cycle but to a small degree. Production strats have a larger footprint so the enable/disable cycle is much more prone to an OutOfMemory excepetion if multiple instruments are traded.

It is something I can work around in production using multiple accounts and multiple instances of Ninja and daily restarts, but I did want to bring it to your attention.

[NinjaTrader_Brett]

Hello,

Looking into this now.

Thank you for your patience.

[NinjaTrader_Brett]

Hello,

I Have heard back from development. This is expected as NinjaTrader does not decide when to release the memory. .Net manages this for NinjaTrader and does whats called Garbage Collection. When it decides it is time to do this it will then clear the memory. NinjaTrader has no input on when this is done as it is done automatically.

Let me know if I can be of further assistance.

[MXASJ]

Thanks Brett. I'll have a play with some of the C# Garbage Collection tools.

http://msdn.microsoft.com/en-us/library/0xy59wtx.aspx

If I come across anything that might help the community I'll post it back here.