vHive v1.2

Added

Features for performance analysis

• Zipkin support added for tracing and breaking down latencies in a distributed vHive setting (e.g., across Istio and Knative services). More info here
• [beta] Added a profiler that collects low-level microarchitectural metrics, using the Intel TopDown method. The tool aims at studying the implications of multi-tenancy, i.e., the VM number, on the tail latency and throughput.

Features for benchmarking at scale and multi-function applications

• Added cluster-local container registry support to avoid DockerHub bottleneck. Contributed by @amohoste from ETH Zurich.
• [alpha] Added Knative eventing support using In-Memory Channel and MT-Channel-broker. Integration tests and Apache Kafka support coming soon.
• Added support for MinIO object store (non-replicated, non-distributed). More info here

Other

• vHive now also supports vanilla Knative benchmarking and testing (i.e., using containers for function sandboxes). More info here.

Changed

• Bumped up the Firecracker version to v0.24 with REAP snapshots support.
• Bumped up all Knative components to version v0.21.
• MicroVMs have network access to all services deployed in a vHive/k8s cluster and the Internet by default, using an automatically detected, or a user-specified, host interface.

Fixed

• CI pulls the latest binaries from git-lfs when running tests on self-hosted runners.