I think it's because the book I'm testing is 400 MB in size, and it has more than 9500 pages of OCRed content :)
Best regards, Hesham -------------------------------------------------------------------------------------------------- Included Message: Hi, That is a good version. Yes I'm surprised with the results. There is some permanent stuff, but I didn't expect it to be that high (58 MB). However a real memory leak could be proven (somewhat) only by running that open and close several times. Tilman Am 24.03.2020 um 20:24 schrieb Hesham Gneady: > It's 8u231 > Do you see something wrong with the results? > > > Best regards, > Hesham > > -----Original Message----- > From: Tilman Hausherr [mailto:thaush...@t-online.de] > Sent: Tuesday, March 24, 2020 8:10 PM > To: users@pdfbox.apache.org > Subject: Re: Consumed memory after closing PDDocument > > Which one? (Exact version) > > I'm asking just to check that you haven't an old one, e.g. 40. > > Tilman > > > Am 24.03.2020 um 17:26 schrieb Hesham Gneady: >> JDK 8.0 >> >> >> Best regards, >> Hesham >> >> --------------------------------------------------------------------- >> - >> ---------------------------- >> Included Message: >> >> What jdk are you using? >> >> Tilman >> >> Am 24.03.2020 um 17:15 schrieb Hesham Gneady: >>> Oh! ... That's absolutely right. I am now getting right results: >>> >>> 1. Heap before Loading PDF Doc: >>> Current heap size: 265289728 >>> Free heap size: 212918368 >>> -------------------------------- >>> 2. Heap after loading the PDF Doc: >>> Current heap size: 908066816 >>> Free heap size: 342499608 >>> -------------------------------- >>> 3. Heap after closing the PDF Doc: >>> Current heap size: 908066816 >>> Free heap size: 849820016 >>> -------------------------------- >>> >>> >>> Best regards, >>> Hesham >>> >>> >>> -----Original Message----- >>> >>> Memory is only freed after a GC run. You Need to invoke that explicitly. >>> >>>> Am 24.03.2020 um 14:40 schrieb Hesham Gneady <heshamgne...@gmail.com>: >>>> >>>> Hello, >>>> >>>> >>>> >>>> I am trying to make a test to see the amount of memory consumed >>>> before and after loading a PDF file using PDFBox, and also the >>>> consumed memory after closing the PDF file, but I've noticed that >>>> the memory consumed after loading the PDF file is the same after >>>> closing the PDF file. It seems that i am doing something wrong, or >>>> that the PDF is still loaded in memory! . Here is the code I'm using: >>>> >>>> >>>> >>>> private String docPath = "c:\400mb.pdf" >>>> >>>> >>>> >>>> public void loadPDFDocument() { >>>> >>>> printHeap( "1. Heap before Loading PDF Doc:" ); >>>> >>>> >>>> >>>> PDDocument document = null; >>>> >>>> try { >>>> >>>> document = PDDocument.load(new >>>> File(docPath)); >>>> >>>> printHeap( "2. Heap after loading the PDF >>>> Doc:" >>>> ); >>>> >>>> } catch (IOException e) { >>>> >>>> throw new RuntimeException(e); >>>> >>>> } finally { >>>> >>>> if (document != null) { >>>> >>>> try { >>>> >>>> >>>> document.close(); >>>> >>>> printHeap( "3. >>>> Heap after closing the PDF Doc:" ); >>>> >>>> } catch (IOException e) { >>>> >>>> >>>> e.printStackTrace(); >>>> >>>> } >>>> >>>> } >>>> >>>> } >>>> >>>> } >>>> >>>> >>>> >>>> >>>> >>>> public void printHeap( String title ) { >>>> >>>> long heapSize = Runtime.getRuntime().totalMemory(); >>>> >>>> long heapFreeSize = >>>> Runtime.getRuntime().freeMemory(); >>>> >>>> >>>> >>>> System.out.println( title ); >>>> >>>> System.out.println( "Current heap size: " + heapSize >>>> ); >>>> >>>> System.out.println( "Free heap size: " + >>>> heapFreeSize ); >>>> >>>> System.out.println( "--------------------------------" >>>> ); >>>> >>>> } >>>> >>>> >>>> >>>> The output for this code when calling loadPDFDocument() is: >>>> >>>> 1. Heap before Loading PDF Doc: >>>> >>>> Current heap size: 265289728 >>>> >>>> Free heap size: 203194096 >>>> >>>> -------------------------------- >>>> >>>> 2. Heap after loading the PDF Doc: >>>> >>>> Current heap size: 899153920 >>>> >>>> Free heap size: 343428432 >>>> >>>> -------------------------------- >>>> >>>> 3. Heap after closing the PDF Doc: >>>> >>>> Current heap size: 899153920 >>>> >>>> Free heap size: 343428432 >>>> >>>> -------------------------------- >>>> >>>> >>>> >>>> Am I doing something wrong here? >>>> >>>> >>>> >>>> >>>> >>>> Best regards, >>>> >>>> Hesham >>>> >>>> >>>> >>> -------------------------------------------------------------------- >>> - To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org >>> For additional commands, e-mail: users-h...@pdfbox.apache.org >>> >>> >>> >>> -------------------------------------------------------------------- >>> - To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org >>> For additional commands, e-mail: users-h...@pdfbox.apache.org >>> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org >> For additional commands, e-mail: users-h...@pdfbox.apache.org >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org >> For additional commands, e-mail: users-h...@pdfbox.apache.org >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org > For additional commands, e-mail: users-h...@pdfbox.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org > For additional commands, e-mail: users-h...@pdfbox.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org For additional commands, e-mail: users-h...@pdfbox.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org For additional commands, e-mail: users-h...@pdfbox.apache.org
