firecracker

firecracker copied to clipboard

[Bug] Massive memory allocation in IO hotpath

5

# Describe the bug In IOVecBuffer::from_descriptor_chain, it allocates a vector without a default capacity. In such IO hot path, any allocation should be avoided.

howard0su

[Perf] Implement async IO for the block device using io_uring

7

After some more debugging there is no doubt that there are 2 major issues which bring down the overall performance of our block device emulation: - serialized block file I/O...

ioanachirca

[Snaps] #snapsafe support via VMGenID on ACPI

4

# Feature Tracker This is a feature tracking issue for the work to enable Firecracker users to safely and efficiently use snapshots [1] by adding VMGenId counter as a back-end...

raduweiss

[Snaps] Full snapshot + restore

3

The ability to create a microVM snapshot is compelling for serverless use cases. It’s also a feature ask from users. We’ve been tinkering with a Firecracker prototype that has a...

raduweiss

[Snaps] Incremental (diff) snapshots

2

The ability to create a microVM snapshot is compelling for serverless use cases. It’s also a feature ask from users. This item tracks the capability of creating incremental (diff) snapshots....

raduweiss

Trusted Platform Module Support

5

We are working on integrating Trusted Platform Module device support for Firecracker as part of our master's thesis. Our fork currently has working functionality for a TPM over virtio, to...

vltmn

[debug/don't review] clean up seccomp filters

1

Please do not review, this is a testing PR. ## Changes ... ## Reason ... ## License Acceptance By submitting this pull request, I confirm that my contribution is made...

kalyazin

Test instrumented binary

2

Add a test that checks a simple integration tests works when Firecracker is instrumented with [src/clippy-tracing](https://github.com/firecracker-microvm/firecracker/tree/main/src/clippy-tracing) and trace level logs are enabled.

JonathanWoollett-Light

[Testing] Vsock latency performance test

4

Add a VSOCK latency performance test. The current VSOCK throughput test is using [iperf3-vsock](https://github.com/stefano-garzarella/iperf-vsock) to generate VSOCK workloads, which does not offer metrics related to latency. Investigate what other tools...

alindima

# Feature Request Add support for vhost-user-blk devices by leaving snapshotting support for vhost-user-blk out of scope. ## Describe the desired solution Firecracker implements a vhost-user-blk frontend. ## Describe possible...

kalyazin