Alexandru Gheorghe
9a0049d0da
Part of https://github.com/paritytech/polkadot-sdk/issues/4126 we want to safely increase the execute_workers_max_num gradually from chain to chain and assess if there are any negative impacts. This PR performs the necessary plumbing to be able to increase it based on the chain id, it increase the number of execution workers from 2 to 4 on test network but lives kusama and polkadot unchanged until we gather more data. --------- Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>
PVF Host
This is the PVF host, responsible for responding to requests from Candidate Validation and spawning worker tasks to fulfill those requests.
See also:
- for more information: the Implementer's Guide
- for an explanation of terminology: the Glossary
Running basic tests
Running cargo test in the pvf/ directory will run unit and integration
tests.
Note: some tests run only under Linux, x86-64, and/or with the
ci-only-tests feature enabled.
See the general Testing instructions for more information on running tests and observing logs.
Running a test-network with zombienet
Since this crate is consensus-critical, for major changes it is highly recommended to run a test-network. See the "Behavior tests" section of the Testing docs for full instructions.
To run the PVF-specific zombienet test:
RUST_LOG=parachain::pvf=trace zombienet --provider=native spawn zombienet_tests/functional/0001-parachains-pvf.toml
Testing on Linux
Some of the PVF functionality, especially related to security, is Linux-only, and some is x86-64-only. If you touch anything security-related, make sure to test on Linux x86-64! If you're on a Mac, you can either run a VM or you can hire a VPS and use the open-source tool EternalTerminal to connect to it.1
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Unlike ssh, ET preserves your session across disconnects, and unlike another popular persistent shell, mosh, it allows scrollback. ↩︎