Conveners
Android MC
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Android MC: Android reprise
- Karim Yaghmour (Opersys inc.)
Description
The Android microconference focuses on cooperation between the Android and Linux communities.
Android has been benefiting from extensive use of the cgroup V1 interface to boost important tasks (the top-app and foreground groups) and limit unimportant ones (background). Our recent investigations have shown that combining CPU shares in addition to the newly introduced util-clamp feature can improve user-visible jank specifically in cases where background load is high. Unfortunately,...
Stacking file systems based on FUSE are intended to go through complicated code paths implemented by the FUSE service, to enforce special access policies or manipulate data at runtime, based on what is the request received by the FUSE file system and the data in the lower file system.
Android relies on FUSE to enforce fine-grained access policies depending on file contents and requesting...
dm-snapshot was a huge step forward for Android updates, but it can have greatly outsized disk space requirements for relatively small binary patches. Since dm-snapshot is closely tuned to the underlying exception store, it is not easily amenable to custom storage formats.
We have addressed this by implementing dm-snapshot in userspace via a new "dm-user" device-mapper module (like FUSE,...
A discussion on how we can find a cost-effective solution to attribute shared buffers to their allocating processes. Other than being useful for memory accounting/debugging, this could also lead the way to a solution to set limits on how much memory a process can allocate.
The Rust for Linux project is adding support for the Rust language to the Linux kernel. We have a partial implementation of the Android Binder driver, as well as PL061 GPIO and NVMe drivers in Rust. Our goal is to make Rust available to kernel developers so that drivers can be written more expeditiously, with most potential memory bugs caught at compile-time, while at the same time preserving...
Most Android vendors currently ship kernels that include Laurent Dufour's speculative page fault patchset from about 2.5 years ago. The patch set was rejected upstream at that time, due to code complexity, but provides a significant benefit to application startup times. I have been working on a new spin on the same basic idea, and came up with a patchset version which is (IMO) simpler and more...
While there are only a small number of devboards in AOSP, a number of vendors and community members have created external projects to enable their devices against AOSP.
Some examples:
- The GloDroid project: https://github.com/glodroid/glodroid_manifest
- android-rpi: https://github.com/android-rpi
- PocoF1 AOSP:...
Come join and further discuss what was talked about at the earlier Android Microconference session. This provides space to allow folks who couldn't attend due to conflicts as well as for longer discussions that wouldn't fit into the earlier microconference session. We'll have a few topics scheduled, but also leave open some space for folks to propose their own items.
