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Here I make use of the Stop Watch class to measure the performance with speed on/off:''' ''' Illustration of Speed Up class for Excel. However, the existing code can easily be amended to include these options.''' (Performance increase by factor of ~10 over default application settings.) ''' Private Sub Demo Speed Up() Dim timer As New Stop Watch Dim speed Up As New XLSpeed Up Dim ws As Excel. For page breaks:''' ''' Turns on/off [workbook] page breaks. Avoid 'Screen Flickering' or 'Screen Repainting': Use Application. So streamline your program logic and get the best performance of macros.This means that Excel is constantly tracking various actions to determine if something should be done. Get Seconds Elapsed ' With performance settings m_Timer. The second time the routine is called it will write values 1501 to 3000, which takes ~2 seconds with Speed-Up running the first time (and ~1 second for subsequent runs i.e. A message box will report the overall speed increase at the end: For individual timings, see the Immediate Window (show results).In some cases, you can increase your codes performance by turning these checks off (when the events are unnecessary). Name = C_NAME_SHEET End If ' Without performance settings. In an effort to increase performance, I did not include these options in the Speed-Up class as page breaks are hidden by default, and I never use pivot tables… Hide Page Breaks: When we run a Microsoft VBA macro in a later version of Microsoft Excel, the macro may take longer to complete than it does in earlier versions of Excel. Hence, turning off events will speed up our VBA code performance.

You can increase the speed of some procedures by keeping screen updating turned off.

After code execution completes, it can be turned back on to redraw/update the screen again. Msg Box msg & Cr Lf & Cr Lf & _ "(See Immediate window for additional results.)", _ vb Information vb OKOnly, "Speed Up Results" Debug.

Each time a cell that affects any formula in your spreadsheet is changed or manipulated, Excel will recalculate the entire worksheet. Print Performance "With performance settings (Speed Up ON)." ' Performance benefit msg = "Speed Up increases performance by a factor of about " & _ VBA. Print Cr Lf & "** " & msg End Sub runs twice and simply writes 1500 values to Excel.

On the eve before Christmas, I'm writing this article on VBA code optimization for my blog readers as a gift. For example, a macro that required several seconds to complete in an earlier version of Excel may require several minutes to complete in a later version of Excel.

It contains both the knowledge and good practices which if followed and used effectively then it might put you in elite category of excellent VBA programmers. This problem may occur if the following conditions are true: * The VBA macro modifies the properties of many rows or columns.

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