Previously, the GPUI profiler allocates one CircularBuffer per thread, and `CircularBuffer<N>` always preallocates space for N entries. As a result it allocates ~20MB/thread, and on my machine about 33 threads are created at startup for a total of 600MB used. In this PR I change it to use a VecDeque that can gradually grow up to 20MB as data is written. At least in my experiments it seems that this caps overall usage at about 21MB perhaps because only one thread writes very much usage data. Since this is fixed overhead for everyone running Zed it seems like a worthwhile gain. This also folds duplicated code across platforms into the common gpui profiler. Before: <img width="4804" height="2192" alt="Image" src="https://github.com/user-attachments/assets/7060ee5b-ef80-49cb-b7be-de33e9a2e7a5" /> After: <img width="5052" height="1858" alt="image" src="https://github.com/user-attachments/assets/513494df-0974-4604-9796-15a12ef1c134" /> I got here from #35780 but I don't think this is tree-size related, it seems to be fixed overhead. Release Notes: - Improved: Significantly less memory used to record internal profiling information. --------- Co-authored-by: MrSubidubi <finn@zed.dev> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
Installation
On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).
Other platforms are not yet available:
- Web (tracking issue)
Developing Zed
Contributing
See CONTRIBUTING.md for ways you can contribute to Zed.
Also... we're hiring! Check out our jobs page for open roles.
Licensing
License information for third party dependencies must be correctly provided for CI to pass.
We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:
- Is it showing a
no license specifiederror for a crate you've created? If so, addpublish = falseunder[package]in your crate's Cargo.toml. - Is the error
failed to satisfy license requirementsfor a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to theacceptedarray inscript/licenses/zed-licenses.toml. - Is
cargo-aboutunable to find the license for a dependency? If so, add a clarification field at the end ofscript/licenses/zed-licenses.toml, as specified in the cargo-about book.
Sponsorship
Zed is developed by Zed Industries, Inc., a for-profit company.
If you’d like to financially support the project, you can do so via GitHub Sponsors. Sponsorships go directly to Zed Industries and are used as general company revenue. There are no perks or entitlements associated with sponsorship.