Paulo,
You're kidding, right? What if the Java heap is only 128mb?
c
On Fri, Jun 08, 2007 at 03:41:58PM +0100, Paulo Soares wrote:
> What's the problem? The GC takes care of that.
>
> Paulo
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On
> > Behalf Of greggan1
> > Sent: Friday, June 08, 2007 9:17 AM
> > To: [email protected]
> > Subject: [iText-questions] High memory allocation with PdfPTable
> >
> >
> > Hi
> >
> > I have tested your
> > http://itextdocs.lowagie.com/tutorial/objects/tables/pdfptable
> > /index.html#memory
> > and analyzed the memory allocation during the build with NuMega from
> > Compuware. The result shows that 205 MB are used and about
> > 575 thousand
> > objects are temporarily created for the result, a pdf with a
> > size of 53kb.
> > The method BidiLine() used about 182 MB of memory.
> >
> >
> >
> > I then tried the older Table class and did the same loop with
> > the result
> > that 22 MB of memory were allocated and 610 thousand objects created.
> >
> >
> > I'm using itext-2.0.0.jar.
> >
> >
> > Should it be like this? Or is it a bug in PdfPTable? Or
> > shouldn't itext be
> > used as a server side solution? I'm planning to use this on a
> > web site with
> > many users creating pdf's but it will make the server running
> > very slow. The
> > server must garbage collect immediately after a pdf is created.
> >
> > Temporary Bytes including Children: 210,014,040 Bytes
> > Temporary Objects including Children: 590,701
> >
> > PdfPTable
> > Size of PDF: 53 kb
> > public void fragmentTable()
> > {
> > System.out.println("FragmentTable");
> > int fragmentsize = 50;
> > // step1
> > Document document = new
> > Document(PageSize.A4.rotate(), 10, 10, 10,
> > 10);
> > try {
> > // step2
> > PdfWriter.getInstance(document,
> > new
> > FileOutputStream("FragmentTable.pdf"));
> > // step3
> > document.open();
> > // step4
> >
> > PdfPTable table = new PdfPTable(2);
> > table.setWidthPercentage(100f);
> >
> > PdfPCell cell;
> > for (int row = 1; row <= 2000; row++) {
> > if (row % fragmentsize == 0) {
> > document.add(table);
> > table.deleteBodyRows();
> > table.setSkipFirstHeader(true);
> > }
> > cell = new PdfPCell(new
> > Paragraph(String.valueOf(row)));
> > table.addCell(cell);
> > cell = new PdfPCell(new
> > Paragraph("Hello World"));
> > table.addCell(cell);
> > }
> > document.add(table);
> > } catch (Exception de) {
> > de.printStackTrace();
> > }
> > // step5
> > document.close();
> > }
> > Temporary Bytes including Children: 205,371,200 Bytes
> > Temporary Objects including Children: 575,385
> >
> >
> >
> > The memory allocation is the same if you skip the part with "
> > if (row %
> > fragmentsize == 0) { ......
> >
> >
> >
> > Method: BidiLine.BidiLine()
> > Package: com.lowagie.text.pdf
> > View Call Graph
> > View Source Code
> > Execution Count: 8,040
> > Temporary Bytes: 182,797,440 Bytes
> > Temporary Objects: 80,400
> >
> >
> >
> >
> >
> > Table
> >
> > Size of PDF: 68 kb
> > public void oldFragmentTable()
> > {
> > System.out.println("FragmentTable2");
> > int fragmentsize = 50;
> > // step1
> > Document document = new
> > Document(PageSize.A4.rotate(), 10,
> > 10, 10, 10);
> > try {
> > // step2
> > PdfWriter.getInstance(document,
> > new
> > FileOutputStream("FragmentTable2.pdf"));
> > // step3
> > document.open();
> > // step4
> >
> > Table table = new Table(2);
> > table.setWidth(100f);
> >
> > Cell cell;
> > for (int row = 1; row <= 2000; row++) {
> > cell = new Cell(String.valueOf(row));
> > table.addCell(cell);
> > cell = new Cell("Hello World");
> > table.addCell(cell);
> > }
> > document.add(table);
> > } catch (Exception de) {
> > de.printStackTrace();
> > }
> > // step5
> > document.close();
> > }
> > Temporary Bytes including Children: 22,476,600 Bytes
> > Temporary Objects including Children: 610,873
> >
> >
> >
> > Method: PdfDocument.add(com.lowagie.text.pdf.PdfTable, boolean)
> > Package: com.lowagie.text.pdf
> >
> > View Call Graph
> > View Source Code
> > Temporary Bytes: 6,608,088 Bytes
> > Temporary Objects: 191,496
> >
> > //greggan
>
>
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