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First run performance on web

Aspose.Total Product Family
#1

Hello,


I am developing a sort of web application, which runs on Sharepoint, therefore GAC; that converts documents to PDF as a basic feature using Aspose. This convertion are done via a handler(ASHX).

The problem is that the first time the application runs(like after GAC deployment) it takes quite some time to convert a simple file. This doesn’t happen just once though, but rather every time a different product is used. Let me give you a concrete scenario. File sizes are pretty much the same.
These happen sequentially:

file.doc (about 8 seconds)
file2.doc (1 second)
file3.doc (1 second) and so on
file.ppt (about 8 seconds)
file2.ppt (about 1 second) and same scenario
same scenario with aspose.cells, aspose.diagram etc.

I have tried to create a dummy instance of document/worksheet/etc. for each product when the application is first deployed; and even converting them to PDF into a dummy stream. However, it only saved a couple of seconds.

It is a bit trivial issue, but it would be good to get rid of. How can I avoid this?

Thanks,
Natan
#2

Hi Natan,


Thanks for your inquiry.

I am a technical support person for Aspose.Words. In Aspose.Words I suppose such a once off delay may be caused by the loading of fonts and other resources. You can try precaching these by creating a new Document and calling UpdateFields and UpdatePageLayout.

Please let me know if this helps. Regarding the other products, the support developers from those teams will answer shortly.

Thanks,
#3

Hi Adam,


Yes, that affected the result significantly though not as much as converting another document first. However, it is good enough. Thank you.

I looked for similar methods to do the same on other products, yet I have failed. I’ll be waiting for those.

Natan
#4

Hello again,


Is there any update on this issue? I’m still waiting for the cache tweaks on other products.

Regards,
Natan
#5
Hi Natan,

Regarding Excel spreadsheets rendering (by using Aspose.Cells component), you may precache using the following sample code, e.g

Workbook workbook = new Workbook();
workbook.Worksheets[0].Cells["A1"].PutValue("Hello");
using(MemoryStream ms = new MemoryStream())
{
workbook.Save(ms, SaveFormat.Pdf);
}


Thank you.

#6
Hi Natan,

Regarding .PPT and .PPTX rendering (by using Aspose.Slides for .NET component), you may precache using the following sample code, e.g

var ppt = new Presentation();
var sldppt = ppt.Slides[0];
using (MemoryStream msppt = new MemoryStream())
{
ppt.Save(msppt, SaveFormat.Pdf);
}

var pptx = new PresentationEx();
var sldpptx = pptx.Slides[0];
using (MemoryStream mspptx = new MemoryStream())
{
pptx.Save(mspptx, SaveFormat.Pdf);
}

Thank you.
#7

Hi Natan,

You can use the following code for Visio diagrams.

Diagram diagram = new Diagram();<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

PdfSaveOptions options = new PdfSaveOptions();

options.SaveFormat = SaveFileFormat.PDF;

using (MemoryStream ms = new MemoryStream())

{

diagram.Save(ms, options);

}

Best Regards,