Description: High CPU utilization and lag when holding delete while header image is showing Steps to Reproduce: 1. Open attached file 2. Set the cursor at the beginning of the yellow marking 3. Hold delete (lag) with 6.5. No noticeable lag but high cpu usage with 4.4.7.2 and older Actual Results: High CPU usage Expected Results: Normal CPU usage Reproducible: Always User Profile Reset: No Additional Info: Version: 6.5.0.0.alpha0+ (x64) Build ID: ce685f64f38551e7984155783c9c7660d986abf6 CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: default; VCL: win; Locale: nl-NL (nl_NL); UI-Language: en-US Calc: CL
Created attachment 157083 [details] Example file
A flamegraph would be nice
Created attachment 157084 [details] perf flamegraph Here's a Flamegraph retrieved on pc Debian x86-64 with master sources updated today.
I can reproduce a short lag in Version: 7.0.0.0.alpha0+ Build ID: 28d844a589e52abfe62dc66b888e78665221ba28 CPU threads: 4; OS: Linux 4.19; UI render: default; VCL: gtk3; Locale: en-US (en_US.UTF-8); UI-Language: en-US Calc: threaded it hangs in 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)
Dear Telesto, To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year. There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present. If you have time, please do the following: Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/ If the bug is present, please leave a comment that includes the information from Help - About LibreOffice. If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice. Please DO NOT Update the version field Reply via email (please reply directly on the bug tracker) Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not appropriate in this case) If you want to do more to help you can test to see if your issue is a REGRESSION. To do so: 1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/ 2. Test your bug 3. Leave a comment with your results. 4a. If the bug was present with 3.3 - set version to 'inherited from OOo'; 4b. If the bug was not present in 3.3 - add 'regression' to keyword Feel free to come ask questions or to say hello in our QA chat: https://web.libera.chat/?settings=#libreoffice-qa Thank you for helping us make LibreOffice even better for everyone! Warm Regards, QA Team MassPing-UntouchedBug
Still 100% CPU. If I delete the image, 35%. Arch Linux 64-bit Version: 26.8.0.0.alpha0+ (X86_64) Build ID: 19f943f13485918d35597be1dcae48c0fbecd0e3 CPU threads: 8; OS: Linux 6.18; UI render: default; VCL: gtk3 Locale: fi-FI (fi_FI.UTF-8); UI: en-US Calc: CL threaded Built on 31 January 2026