Bug 142081 - FILEOPEN: 100% CPU after opening file
Summary: FILEOPEN: 100% CPU after opening file
Status: RESOLVED WORKSFORME
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
4.4 all versions
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: perf, wantBacktrace
Depends on:
Blocks: DOCX-Opening CPU-AT-100%
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Reported: 2021-05-04 11:44 UTC by Xisco Faulí
Modified: 2023-05-05 07:52 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:


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Description Xisco Faulí 2021-05-04 11:44:35 UTC
Steps to reproduce:
1. Open attachment 76522 [details] from bug 62336

-> Once the file is imported, LibreOffice uses 100% of CPU

Reproduced in

Version: 7.2.0.0.alpha0+ / LibreOffice Community
Build ID: dff586735b6618d9b011823594a33287d8f7f223
CPU threads: 4; OS: Linux 5.7; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded

Version: 5.2.0.0.alpha1+
Build ID: 5b168b3fa568e48e795234dc5fa454bf24c9805e
CPU Threads: 4; OS Version: Linux 4.8; UI Render: default; 
Locale: ca-ES (ca_ES.UTF-8)

Version: 4.3.0.0.alpha1+
Build ID: c15927f20d4727c3b8de68497b6949e72f9e6e9e
Comment 1 Xisco Faulí 2021-05-04 11:45:23 UTC
Hi Luke,
I thought you might be interested in this issue after you fixed bug 141556
Comment 2 [REDACTED] 2021-05-04 12:12:51 UTC
no repro

Version: 7.1.3.2 / LibreOffice Community
Build ID: 47f78053abe362b9384784d31a6e56f8511eb1c1
CPU threads: 8; OS: Linux 5.3; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded

- There is one CPU thread (out of 8 available threads on my system) showing 100% percent for some seconds.

- It does not matter whether using VCL:gtk3 or VCL:kf5
Comment 3 Roman Kuznetsov 2021-05-04 14:05:52 UTC
confirm 100% CPU load after file opening in

Version: 7.2.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: 931e264590100c555580c413556e229a0f03316a
CPU threads: 4; OS: Windows 10.0 Build 18363; UI render: Skia/Raster; VCL: win
Locale: ru-RU (ru_RU); UI: ru-RU
Calc: threaded

I see some delay when LO opens the file also
Comment 4 QA Administrators 2023-05-05 03:24:34 UTC Comment hidden (obsolete)
Comment 5 Xisco Faulí 2023-05-05 07:50:49 UTC
No longer reproducible in

Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 1efb16454f813dce9dffc124b43a31e46a1b9e3f
CPU threads: 8; OS: Linux 5.10; UI render: default; VCL: gtk3
Locale: es-ES (es_ES.UTF-8); UI: en-US
Calc: threaded
Comment 6 Xisco Faulí 2023-05-05 07:52:27 UTC
Not reproducible in

Version: 7.3.0.0.alpha1+ / LibreOffice Community
Build ID: 229123ccc6f90ebf66b3e659bebbd53f8a9bdd3a
CPU threads: 8; OS: Linux 5.10; UI render: default; VCL: gtk3
Locale: es-ES (es_ES.UTF-8); UI: en-US
Calc: threaded

either