Memory leak in NT7?

bluelou · 05-19-2010, 05:40 PM

After each backtest NT7 memory consumption is increasing. I thought this was supposed to be resolved in NT7.

Here's what happened today: Started the day w/NT7 using 200,000K memory at start up. After about 10 backtest runs it was at 4,300,000K and the last backtest took about 20 minutes to run on 10 months worth of tick bars.

Upon subsequent reboots to try to reduce memory consumption, NT7 was already using 1,700,000K just at start up.

Is this the best we're likely to see out of NT7 or are other memory improvements coming?

NinjaTrader_Bertrand · 05-20-2010, 07:21 AM

bluelou, are you using seeing the same with our SampleMACrossOver strategy? I tried various charts and intervals here on my end and could not reproduce a memory building up / leak issue....do you properly dispose any custom resources eventually used in your custom code?

bluelou · 05-20-2010, 10:06 AM

Bertrand,
You may be right. I wasn't able to replicate the issue using the NT supplied strategies. I'll let you know how I end up resolving the issue.

Thx,
Lou

NinjaTrader_Bertrand · 05-20-2010, 10:08 AM

Ok Lou, thanks for the update, please let me know how it goes.

05-19-2010, 05:40 PM	#1
bluelou Senior Member Join Date: Apr 2008 Posts: 512 Thanks: 6 Thanked 1 time in 1 post	Memory leak in NT7? After each backtest NT7 memory consumption is increasing. I thought this was supposed to be resolved in NT7. Here's what happened today: Started the day w/NT7 using 200,000K memory at start up. After about 10 backtest runs it was at 4,300,000K and the last backtest took about 20 minutes to run on 10 months worth of tick bars. Upon subsequent reboots to try to reduce memory consumption, NT7 was already using 1,700,000K just at start up. Is this the best we're likely to see out of NT7 or are other memory improvements coming?
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05-20-2010, 07:21 AM	#2
NinjaTrader_Bertrand NinjaTrader Customer Service Join Date: Sep 2008 Location: Germany Posts: 22,569 Thanks: 262 Thanked 1,018 times in 999 posts	bluelou, are you using seeing the same with our SampleMACrossOver strategy? I tried various charts and intervals here on my end and could not reproduce a memory building up / leak issue....do you properly dispose any custom resources eventually used in your custom code? Bertrand NinjaTrader Customer Service Use Kinetick, NinjaTrader’s preferred market data service - Learn More Free online training events - View Schedule
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05-20-2010, 10:06 AM	#3
bluelou Senior Member Join Date: Apr 2008 Posts: 512 Thanks: 6 Thanked 1 time in 1 post	Bertrand, You may be right. I wasn't able to replicate the issue using the NT supplied strategies. I'll let you know how I end up resolving the issue. Thx, Lou
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05-20-2010, 10:08 AM	#4
NinjaTrader_Bertrand NinjaTrader Customer Service Join Date: Sep 2008 Location: Germany Posts: 22,569 Thanks: 262 Thanked 1,018 times in 999 posts	Ok Lou, thanks for the update, please let me know how it goes. Bertrand NinjaTrader Customer Service Use Kinetick, NinjaTrader’s preferred market data service - Learn More Free online training events - View Schedule
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