Bug 128417 - Fileopen ODT: Slow file opening of a file containing a large table in OpenGL mode (compared to non-OpenGL)
Summary: Fileopen ODT: Slow file opening of a file containing a large table in OpenGL ...
Status: RESOLVED WONTFIX
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
6.4.0.0.alpha1+
Hardware: All Windows (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: perf
Depends on:
Blocks: File-Opening VCL-OpenGL
  Show dependency tree / graph
 
Reported: 2019-10-27 17:40 UTC by Telesto
Modified: 2020-08-28 13:58 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:

Attachments
WinDbg 64 backtrace of threads while test document opens with OpenGL rendering (42.42 KB, text/plain)
2019-10-27 22:16 UTC, V Stuart Foote 		Details
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Description Telesto 2019-10-27 17:40:13 UTC 
Description:
Fileopen ODT: Slow file opening of a file containing a large table in OpenGL mode (compared to non-OpenGL)

Steps to Reproduce:
1. Open attachment 149343 [details] (bug 123517)
2. Monitor the time before the document appears on screen (progress bar stops flickering)

Actual Results:
18 seconds with OpenGL
8 seconds without OpenGL

Expected Results:
Similar to non-OpenGL


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.4.0.0.alpha0+ (x86)
Build ID: c45d477b0a0038d9c25176cf7cff299e5ddf3a7a
CPU threads: 4; OS: Windows 6.3; UI render: default; VCL: win; 
TinderBox: Win-x86@42, Branch:master, Time: 2019-09-30_05:06:55
Locale: nl-NL (nl_NL); UI-Language: en-US
Calc: CL
Comment 1 Roman Kuznetsov 2019-10-27 21:19:29 UTC 
confirm in

Версия: 6.4.0.0.alpha1+ (x64)
ID сборки: 546e6c359e96a2e7f5aab7c158c7e843be6c8957
Потоков ЦП: 4; ОС:Windows 10.0 Build 17763; Отрисовка ИП: GL; VCL: win; 
Локаль: ru-RU (ru_RU); Язык интерфейса: ru-RU
Calc: threaded

I got 7 sec vs. 19 sec on my computer. And progressbar was really very flicker
Comment 2 V Stuart Foote 2019-10-27 22:16:23 UTC 
Created attachment 155352 [details]
WinDbg 64 backtrace of threads while test document opens with OpenGL rendering

Attached a WinDbg 64 stack trace with Symbols and source while opening attachment with OpenGL rendering enabled.

Windows 10 Home 64-bit en-US (1903) with
Version: 6.3.2.2 (x64)
Build ID: 98b30e735bda24bc04ab42594c85f7fd8be07b9c
CPU threads: 4; OS: Windows 10.0; UI render: GL; VCL: win; 
Locale: en-US (en_US); UI-Language: en-US
Calc: threaded
Comment 3 Buovjaga 2020-08-28 12:21:01 UTC 
As Skia with Vulkan will replace OpenGL UI rendering on all platforms, it does not make sense to keep OpenGL UI reports open.

Details about Skia: https://www.collaboraoffice.com/success-story/implementing-vulkan-capable-libreoffice-user-interface-using-the-skia-library/
Comment 4 Telesto 2020-08-28 13:58:49 UTC 
Check. fine
Version: 7.1.0.0.alpha0+ (x64)
Build ID: 6640d7f405d2970ba2825a9455926cc803284d01
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