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subsystem-bench.rs
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subsystem-bench.rs
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// Copyright (C) Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Polkadot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
//! A tool for running subsystem benchmark tests
//! designed for development and CI regression testing.
use clap::Parser;
use color_eyre::eyre;
use colored::Colorize;
use polkadot_subsystem_bench::{approval, availability, configuration};
use pyroscope::PyroscopeAgent;
use pyroscope_pprofrs::{pprof_backend, PprofConfig};
use serde::{Deserialize, Serialize};
use std::path::Path;
mod valgrind;
const LOG_TARGET: &str = "subsystem-bench::cli";
/// Supported test objectives
#[derive(Debug, Clone, Parser, Serialize, Deserialize)]
#[command(rename_all = "kebab-case")]
pub enum TestObjective {
/// Benchmark availability recovery strategies.
DataAvailabilityRead(availability::DataAvailabilityReadOptions),
/// Benchmark availability and bitfield distribution.
DataAvailabilityWrite,
/// Benchmark the approval-voting and approval-distribution subsystems.
ApprovalVoting(approval::ApprovalsOptions),
}
impl std::fmt::Display for TestObjective {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"{}",
match self {
Self::DataAvailabilityRead(_) => "DataAvailabilityRead",
Self::DataAvailabilityWrite => "DataAvailabilityWrite",
Self::ApprovalVoting(_) => "ApprovalVoting",
}
)
}
}
/// The test input parameters
#[derive(Clone, Debug, Serialize, Deserialize)]
struct CliTestConfiguration {
/// Test Objective
pub objective: TestObjective,
/// Test Configuration
#[serde(flatten)]
pub test_config: configuration::TestConfiguration,
}
#[derive(Serialize, Deserialize)]
pub struct TestSequence {
#[serde(rename(serialize = "TestConfiguration", deserialize = "TestConfiguration"))]
test_configurations: Vec<CliTestConfiguration>,
}
impl TestSequence {
fn new_from_file(path: &Path) -> std::io::Result<TestSequence> {
let string = String::from_utf8(std::fs::read(path)?).expect("File is valid UTF8");
Ok(serde_yaml::from_str(&string).expect("File is valid test sequence YA"))
}
}
#[derive(Debug, Parser)]
#[allow(missing_docs)]
struct BenchCli {
#[clap(long, default_value_t = false)]
/// Enable CPU Profiling with Pyroscope
pub profile: bool,
#[clap(long, requires = "profile", default_value_t = String::from("http://localhost:4040"))]
/// Pyroscope Server URL
pub pyroscope_url: String,
#[clap(long, requires = "profile", default_value_t = 113)]
/// Pyroscope Sample Rate
pub pyroscope_sample_rate: u32,
#[clap(long, default_value_t = false)]
/// Enable Cache Misses Profiling with Valgrind. Linux only, Valgrind must be in the PATH
pub cache_misses: bool,
#[arg(required = true)]
/// Path to the test sequence configuration file
pub path: String,
}
impl BenchCli {
fn launch(self) -> eyre::Result<()> {
let is_valgrind_running = valgrind::is_valgrind_running();
if !is_valgrind_running && self.cache_misses {
return valgrind::relaunch_in_valgrind_mode()
}
let agent_running = if self.profile {
let agent = PyroscopeAgent::builder(self.pyroscope_url.as_str(), "subsystem-bench")
.backend(pprof_backend(PprofConfig::new().sample_rate(self.pyroscope_sample_rate)))
.build()?;
Some(agent.start()?)
} else {
None
};
let test_sequence = TestSequence::new_from_file(Path::new(&self.path))
.expect("File exists")
.test_configurations;
let num_steps = test_sequence.len();
gum::info!("{}", format!("Sequence contains {} step(s)", num_steps).bright_purple());
for (index, CliTestConfiguration { objective, mut test_config }) in
test_sequence.into_iter().enumerate()
{
let benchmark_name = format!("{} #{} {}", &self.path, index + 1, objective);
gum::info!(target: LOG_TARGET, "{}", format!("Step {}/{}", index + 1, num_steps).bright_purple(),);
gum::info!(target: LOG_TARGET, "[{}] {}", format!("objective = {:?}", objective).green(), test_config);
test_config.generate_pov_sizes();
let usage = match objective {
TestObjective::DataAvailabilityRead(opts) => {
let mut state = availability::TestState::new(&test_config);
let (mut env, _protocol_config) = availability::prepare_test(
test_config,
&mut state,
availability::TestDataAvailability::Read(opts),
true,
);
env.runtime().block_on(availability::benchmark_availability_read(
&benchmark_name,
&mut env,
state,
))
},
TestObjective::DataAvailabilityWrite => {
let mut state = availability::TestState::new(&test_config);
let (mut env, _protocol_config) = availability::prepare_test(
test_config,
&mut state,
availability::TestDataAvailability::Write,
true,
);
env.runtime().block_on(availability::benchmark_availability_write(
&benchmark_name,
&mut env,
state,
))
},
TestObjective::ApprovalVoting(ref options) => {
let (mut env, state) =
approval::prepare_test(test_config.clone(), options.clone(), true);
env.runtime().block_on(approval::bench_approvals(
&benchmark_name,
&mut env,
state,
))
},
};
println!("{}", usage);
}
if let Some(agent_running) = agent_running {
let agent_ready = agent_running.stop()?;
agent_ready.shutdown();
}
Ok(())
}
}
fn main() -> eyre::Result<()> {
color_eyre::install()?;
env_logger::builder()
.filter(Some("hyper"), log::LevelFilter::Info)
// Avoid `Terminating due to subsystem exit subsystem` warnings
.filter(Some("polkadot_overseer"), log::LevelFilter::Error)
.filter(None, log::LevelFilter::Info)
.format_timestamp_millis()
.try_init()
.unwrap();
let cli: BenchCli = BenchCli::parse();
cli.launch()?;
Ok(())
}