The more charts you have, the more time, so close charts that you never use.Įverything on your NT chart uses up CPU – even lines, labels, and yes, drawings (e.g.
Try it – you might be surprised how much more responsive your charts are, and how much faster they will load.Įach chart takes up quite a bit of time. If you specify 1000 bars, you’ll get 1000 bars of history whether it’s in Days, minutes, or Renko bars. To easily resolve this, don’t specify your history requirements in terms of Days – use Bars instead. Loading 20 days of data in NQ Renko can generate over half a million bars in that one chart alone. With Renko, this is even more dramatic, especially with the NQ. If you then switch to a 5 min chart, you’ll get 75 times more bars, or 15,000 bars. For example, if you specify 200 Days of history in your data series, that equates to 200 bars on a daily chart. And this can result in a lot more bars than you realize. When you specify the amount of history you’re loading in terms of Days, the number of bars that are drawn is automatically calculated for you. When specifying how much data to load in your charts, the more you load, the more calculations and memory NinjaTrader has to manage. Use Bars rather than Days in DataSeries specifications (Reduce total number of bars)
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Using on price change will usually suffice, and should result in fewer calculations being made by that indicator, as it will only update when price changes. Only use on each tick when warranted, such as with an indicator that needs to count every tick, such as a ticks-left counter. If you must see the very latest value of the indicator intrabar, then on price change is preferred. The downside of this is that you won’t see the indicator update on the current bar.
When possible, set Calculate to on bar close, when the only time the indicator updates is at the close of the bar, just as it’s moving to the next bar. When configuring your indicators, be selective about which indicators you set to update more than solely at the close of the bar. Use Calculation Setting On Bar Close or On Price Change
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