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| The very 1st PDF seems to be generated a bit longer https://forum.pdfsharp.net/viewtopic.php?f=2&t=3439 |
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| Author: | vorobej [ Mon Aug 29, 2016 4:49 pm ] |
| Post subject: | The very 1st PDF seems to be generated a bit longer |
Hi all, I am developing a Windows service that among other things has to generate the very uniform PDFs: 3-4 pages of plain text, a couple of tiny tables (2-3 columns, 1-2 rows), a single 9kb image in the page header. It seems that after the service is started, the very 1st PDF takes about 5 seconds to generate, while the rest take about 2-3 seconds. The difference is very reproducible. If I shut down the service, then the 1st PDF takes longer to RenderDocument(). This is nothing major, but I just want to understand why and what is involved. |
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| Author: | TH-Soft [ Mon Aug 29, 2016 6:44 pm ] |
| Post subject: | Re: The very 1st PDF seems to be generated a bit longer |
Hi! vorobej wrote: This is nothing major, but I just want to understand why and what is involved. I think one factor is the Just In Time compilation (IL to native code).First invocation may include loading .NET and other one-time tasks. You wrote "Windows service". Is it a Web service (MVC or such)? In that case there may even be some CS or VB compilation in the background on the first invocation. |
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| Author: | vorobej [ Mon Aug 29, 2016 9:09 pm ] |
| Post subject: | Re: The very 1st PDF seems to be generated a bit longer |
No, just a windows service. |
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