Bug 159680 - Memory not freed after PDF export
Summary: Memory not freed after PDF export
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
24.8.0.0 alpha0+ Master
Hardware: All macOS (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: PDF-Export
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Reported: 2024-02-11 10:43 UTC by Telesto
Modified: 2024-02-29 17:23 UTC (History)
4 users (show)

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Crash report or crash signature:

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Description Telesto 2024-02-11 10:43:39 UTC 
Description:
Memory not freed after PDF export

Steps to Reproduce:
1. Open attachment 192460 [details] (takes a while to open, 1500 pages)
2. Open a process monitor to check memory usage
3. Save as PDF 


Actual Results:
* Memory usage increases to from 1,5 to 4 GB (feels excessive) while exporting with ba8f4bff6015013013df652efbfaf4d9ae10c881
* The RAM usage is sticky. Close the document after export. 


Expected Results:
Primary, free ram after export


Reproducible: Always


User Profile Reset: No

Additional Info:
Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: ba8f4bff6015013013df652efbfaf4d9ae10c881
CPU threads: 8; OS: macOS 14.3; UI render: Skia/Raster; VCL: osx
Locale: nl-NL (nl_NL.UTF-8); UI: en-US
Calc: threaded
Comment 1 m_a_riosv 2024-02-11 15:44:58 UTC 
On Windows with Skia/Vulkan:
Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 17fc445938dedb05125a6d6a5b4ce7f34ea95f59
CPU threads: 16; OS: Windows 10.0 Build 22631; UI render: Skia/Vulkan; VCL: win
Locale: es-ES (es_ES); UI: en-US
Calc: CL threaded

After open the file: 0.6 GB
After export to PDF: 0.7 GB

On Windows with Skia/Raster:
Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 17fc445938dedb05125a6d6a5b4ce7f34ea95f59
CPU threads: 16; OS: Windows 10.0 Build 22631; UI render: Skia/Raster; VCL: win
Locale: es-ES (es_ES); UI: en-US
Calc: CL threaded

After open the file: 0.5 GB
After export to PDF: 0.5 GB

On Windows with default:
Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 17fc445938dedb05125a6d6a5b4ce7f34ea95f59
CPU threads: 16; OS: Windows 10.0 Build 22631; UI render: default; VCL: win
Locale: es-ES (es_ES); UI: en-US
Calc: CL threaded

After open the file: 0.5 GB
After export to PDF: 0.5 GB
Comment 2 Telesto 2024-02-11 16:37:32 UTC 
Similar to comment 1 with Windows
Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 4d381b54d1c598c181b4a21a8bf0db86eb4668d1
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Raster; VCL: win
Locale: nl-NL (nl_NL); UI: en-US
Calc: CL threaded

The document is only using 295 MB in my case on export 421 MB. Drops nicely after closing the window. Different story for macOS
Comment 3 Stéphane Guillou (stragu) 2024-02-27 08:11:33 UTC 
Tested on Linux:

Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: d2fa44db6f8a1badece63856ee0f12db4cba9b28
CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded

When opened, settles at about 830 mb.
When exporting, goes to 900 mb.
Settles back to 880 mb afterwards.
If I export again, it settles to 910 mb, but doesn't go further with subsequent exports.

It does look macOS-specific.
Comment 4 Dennis Roczek 2024-02-29 15:34:46 UTC 
Confirmed using

Version: 24.2.0.3 (X86_64) / LibreOffice Community
Build ID: da48488a73ddd66ea24cf16bbc4f7b9c08e9bea1
CPU threads: 4; OS: macOS 11.7.10; UI render: Skia/Raster; VCL: osx
Locale: de-DE (de_DE.UTF-8); UI: de-DE
Calc: threaded

from ~690mb
up to 3,53GB
"going back" after export 3,54GB
Comment 5 Dennis Roczek 2024-02-29 15:36:58 UTC 
(In reply to Dennis Roczek from comment #4)
> Confirmed using
> 
> Version: 24.2.0.3 (X86_64) / LibreOffice Community
> Build ID: da48488a73ddd66ea24cf16bbc4f7b9c08e9bea1
> CPU threads: 4; OS: macOS 11.7.10; UI render: Skia/Raster; VCL: osx
> Locale: de-DE (de_DE.UTF-8); UI: de-DE
> Calc: threaded
> 
> from ~690mb
> up to 3,53GB
> "going back" after export 3,54GB

missed: but even when closing the document, it still stays at 3,31GB in my case! o.O