UBlock Origin reserves way too much virtual memory #3469
Description
Prerequisites
- I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the uAssets issue tracker.
- This is NOT a YouTube, Facebook or Twitch report. These sites MUST be reported by clicking their respective links.
- This is not a support issue or a question. For support, questions, or help, visit /r/uBlockOrigin.
- I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
- The issue is not present after disabling uBO in the browser.
- I checked the documentation to understand that the issue I am reporting is not normal behavior.
I tried to reproduce the issue when...
- uBO is the only extension.
- uBO uses default lists and settings.
- using a new, unmodified browser profile.
Description
When active, the virtual memory requirement for Firefox (128.0) immediately jumps to 17 GB, irrespective of any
setting of cache on/off, logger entry numbers etc. . Although resident memory is still low, this causes a couple of
subtle issues (OS openindiana hipster 2024/10) due to excessive paging, sloppy behaviour of the desktop etc.
When off, virtual size drops to "firefox-normal" 830 MB. This happens regardless of other extensions present or not,
webpage not relevant.
Memory: 12G phys mem, 5514M free mem, 32G total swap, 32G free swap
PID USERNAME NLWP PRI NICE SIZE RES STATE TIME CPU COMMAND
nnn xxxxx 26 10 0 17G 135M cpu/0 2:00 8.64% firefox
A specific URL where the issue occurs.
https://anywhereSteps to Reproduce
Install and activate uBlock Origin, restart.
Expected behavior
Shouldn't immediately reserve that much virtual memory (what should that be needed for?).
Actual behavior
vm immediately raised to 17 GB.
uBO version
1.61.2
Browser name and version
firefox 128.0 64bit
Operating System and version
Openindiana Hipster 2024/10