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Code Issues Projects Releases Wiki Activity

Move functionality to scheduler

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This commit is contained in:
David Peter 2022-02-20 13:44:34 +01:00 committed by David Peter
parent b658e20110
commit dcfeede18e
10 changed files with 514 additions and 514 deletions
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0
src/benchmark/result.rs → src/benchmark/benchmark_result.rs
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505
src/benchmark/mod.rs
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@ -1,510 +1,9 @@
pub mod benchmark_result;
pub mod relative_speed;
pub mod result;
pub mod scheduler;
pub mod timing_result;
use std::cmp;
use std::process::{ExitStatus, Stdio};
use colored::*;
use statistical::{mean, median, standard_deviation};
use crate::benchmark::result::BenchmarkResult;
use crate::command::Command;
use crate::options::{CmdFailureAction, CommandOutputPolicy, Options, OutputStyleOption, Shell};
use crate::outlier_detection::{modified_zscores, OUTLIER_THRESHOLD};
use crate::output::format::{format_duration, format_duration_unit};
use crate::output::progress_bar::get_progress_bar;
use crate::output::warnings::Warnings;
use crate::shell::execute_and_time;
use crate::timer::wallclocktimer::WallClockTimer;
use crate::timer::{TimerStart, TimerStop};
use crate::util::exit_code::extract_exit_code;
use crate::util::min_max::{max, min};
use crate::util::units::Second;
use anyhow::{bail, Result};
/// Threshold for warning about fast execution time
pub const MIN_EXECUTION_TIME: Second = 5e-3;
/// Results from timing a single command
#[derive(Debug, Default, Copy, Clone)]
pub struct TimingResult {
/// Wall clock time
pub time_real: Second,
/// Time spent in user mode
pub time_user: Second,
/// Time spent in kernel mode
pub time_system: Second,
}
/// Correct for shell spawning time
fn subtract_shell_spawning_time(time: Second, shell_spawning_time: Second) -> Second {
if time < shell_spawning_time {
0.0
} else {
time - shell_spawning_time
}
}
/// Run the given shell command and measure the execution time
pub fn time_shell_command(
shell: &Shell,
command: &Command<'_>,
command_output_policy: CommandOutputPolicy,
failure_action: CmdFailureAction,
shell_spawning_time: Option<TimingResult>,
) -> Result<(TimingResult, ExitStatus)> {
let (stdout, stderr) = match command_output_policy {
CommandOutputPolicy::Discard => (Stdio::null(), Stdio::null()),
CommandOutputPolicy::Forward => (Stdio::inherit(), Stdio::inherit()),
};
let wallclock_timer = WallClockTimer::start();
let result = execute_and_time(stdout, stderr, &command.get_shell_command(), shell)?;
let mut time_real = wallclock_timer.stop();
let mut time_user = result.user_time;
let mut time_system = result.system_time;
if failure_action == CmdFailureAction::RaiseError && !result.status.success() {
bail!(
"{}. Use the '-i'/'--ignore-failure' option if you want to ignore this. \
Alternatively, use the '--show-output' option to debug what went wrong.",
result.status.code().map_or(
"The process has been terminated by a signal".into(),
|c| format!("Command terminated with non-zero exit code: {}", c)
)
);
}
// Correct for shell spawning time
if let Some(spawning_time) = shell_spawning_time {
time_real = subtract_shell_spawning_time(time_real, spawning_time.time_real);
time_user = subtract_shell_spawning_time(time_user, spawning_time.time_user);
time_system = subtract_shell_spawning_time(time_system, spawning_time.time_system);
}
Ok((
TimingResult {
time_real,
time_user,
time_system,
},
result.status,
))
}
/// Measure the average shell spawning time
pub fn mean_shell_spawning_time(
shell: &Shell,
style: OutputStyleOption,
command_output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
const COUNT: u64 = 50;
let progress_bar = if style != OutputStyleOption::Disabled {
Some(get_progress_bar(
COUNT,
"Measuring shell spawning time",
style,
))
} else {
None
};
let mut times_real: Vec<Second> = vec![];
let mut times_user: Vec<Second> = vec![];
let mut times_system: Vec<Second> = vec![];
for _ in 0..COUNT {
// Just run the shell without any command
let res = time_shell_command(
shell,
&Command::new(None, ""),
command_output_policy,
CmdFailureAction::RaiseError,
None,
);
match res {
Err(_) => {
let shell_cmd = if cfg!(windows) {
format!("{} /C \"\"", shell)
} else {
format!("{} -c \"\"", shell)
};
bail!(
"Could not measure shell execution time. Make sure you can run '{}'.",
shell_cmd
);
}
Ok((r, _)) => {
times_real.push(r.time_real);
times_user.push(r.time_user);
times_system.push(r.time_system);
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.finish_and_clear()
}
Ok(TimingResult {
time_real: mean(&times_real),
time_user: mean(&times_user),
time_system: mean(&times_system),
})
}
fn run_intermediate_command(
shell: &Shell,
command: &Option<Command<'_>>,
command_output_policy: CommandOutputPolicy,
error_output: &'static str,
) -> Result<TimingResult> {
if let Some(ref cmd) = command {
let res = time_shell_command(
shell,
cmd,
command_output_policy,
CmdFailureAction::RaiseError,
None,
);
if res.is_err() {
bail!(error_output);
}
return res.map(|r| r.0);
}
Ok(TimingResult {
..Default::default()
})
}
/// Run the command specified by `--setup`.
fn run_setup_command(
shell: &Shell,
command: &Option<Command<'_>>,
output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
let error_output = "The setup command terminated with a non-zero exit code. \
Append ' || true' to the command if you are sure that this can be ignored.";
run_intermediate_command(shell, command, output_policy, error_output)
}
/// Run the command specified by `--prepare`.
fn run_preparation_command(
shell: &Shell,
command: &Option<Command<'_>>,
output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
let error_output = "The preparation command terminated with a non-zero exit code. \
Append ' || true' to the command if you are sure that this can be ignored.";
run_intermediate_command(shell, command, output_policy, error_output)
}
/// Run the command specified by `--cleanup`.
fn run_cleanup_command(
shell: &Shell,
command: &Option<Command<'_>>,
output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
let error_output = "The cleanup command terminated with a non-zero exit code. \
Append ' || true' to the command if you are sure that this can be ignored.";
run_intermediate_command(shell, command, output_policy, error_output)
}
/// Run the benchmark for a single shell command
pub fn run_benchmark(
num: usize,
cmd: &Command<'_>,
shell_spawning_time: TimingResult,
options: &Options,
) -> Result<BenchmarkResult> {
let command_name = cmd.get_name();
if options.output_style != OutputStyleOption::Disabled {
println!(
"{}{}: {}",
"Benchmark ".bold(),
(num + 1).to_string().bold(),
command_name,
);
}
let mut times_real: Vec<Second> = vec![];
let mut times_user: Vec<Second> = vec![];
let mut times_system: Vec<Second> = vec![];
let mut exit_codes: Vec<Option<i32>> = vec![];
let mut all_succeeded = true;
// Run init command
let prepare_cmd = options.preparation_command.as_ref().map(|values| {
let preparation_command = if values.len() == 1 {
&values[0]
} else {
&values[num]
};
Command::new_parametrized(None, preparation_command, cmd.get_parameters().clone())
});
// Run setup command
let setup_cmd = options.setup_command.as_ref().map(|setup_command| {
Command::new_parametrized(None, setup_command, cmd.get_parameters().clone())
});
run_setup_command(&options.shell, &setup_cmd, options.command_output_policy)?;
// Warmup phase
if options.warmup_count > 0 {
let progress_bar = if options.output_style != OutputStyleOption::Disabled {
Some(get_progress_bar(
options.warmup_count,
"Performing warmup runs",
options.output_style,
))
} else {
None
};
for _ in 0..options.warmup_count {
let _ = run_preparation_command(
&options.shell,
&prepare_cmd,
options.command_output_policy,
)?;
let _ = time_shell_command(
&options.shell,
cmd,
options.command_output_policy,
options.command_failure_action,
None,
)?;
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.finish_and_clear()
}
}
// Set up progress bar (and spinner for initial measurement)
let progress_bar = if options.output_style != OutputStyleOption::Disabled {
Some(get_progress_bar(
options.run_bounds.min,
"Initial time measurement",
options.output_style,
))
} else {
None
};
let prepare_result =
run_preparation_command(&options.shell, &prepare_cmd, options.command_output_policy)?;
// Initial timing run
let (res, status) = time_shell_command(
&options.shell,
cmd,
options.command_output_policy,
options.command_failure_action,
Some(shell_spawning_time),
)?;
let success = status.success();
// Determine number of benchmark runs
let runs_in_min_time = (options.min_benchmarking_time
/ (res.time_real + prepare_result.time_real + shell_spawning_time.time_real))
as u64;
let count = {
let min = cmp::max(runs_in_min_time, options.run_bounds.min);
options
.run_bounds
.max
.as_ref()
.map(|max| cmp::min(min, *max))
.unwrap_or(min)
};
let count_remaining = count - 1;
// Save the first result
times_real.push(res.time_real);
times_user.push(res.time_user);
times_system.push(res.time_system);
exit_codes.push(extract_exit_code(status));
all_succeeded = all_succeeded && success;
// Re-configure the progress bar
if let Some(bar) = progress_bar.as_ref() {
bar.set_length(count)
}
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
// Gather statistics
for _ in 0..count_remaining {
run_preparation_command(&options.shell, &prepare_cmd, options.command_output_policy)?;
let msg = {
let mean = format_duration(mean(&times_real), options.time_unit);
format!("Current estimate: {}", mean.to_string().green())
};
if let Some(bar) = progress_bar.as_ref() {
bar.set_message(msg.to_owned())
}
let (res, status) = time_shell_command(
&options.shell,
cmd,
options.command_output_policy,
options.command_failure_action,
Some(shell_spawning_time),
)?;
let success = status.success();
times_real.push(res.time_real);
times_user.push(res.time_user);
times_system.push(res.time_system);
exit_codes.push(extract_exit_code(status));
all_succeeded = all_succeeded && success;
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.finish_and_clear()
}
// Compute statistical quantities
let t_num = times_real.len();
let t_mean = mean(&times_real);
let t_stddev = if times_real.len() > 1 {
Some(standard_deviation(&times_real, Some(t_mean)))
} else {
None
};
let t_median = median(&times_real);
let t_min = min(&times_real);
let t_max = max(&times_real);
let user_mean = mean(&times_user);
let system_mean = mean(&times_system);
// Formatting and console output
let (mean_str, time_unit) = format_duration_unit(t_mean, options.time_unit);
let min_str = format_duration(t_min, Some(time_unit));
let max_str = format_duration(t_max, Some(time_unit));
let num_str = format!("{} runs", t_num);
let user_str = format_duration(user_mean, Some(time_unit));
let system_str = format_duration(system_mean, Some(time_unit));
if options.output_style != OutputStyleOption::Disabled {
if times_real.len() == 1 {
println!(
" Time ({} ≡): {:>8} {:>8} [User: {}, System: {}]",
"abs".green().bold(),
mean_str.green().bold(),
" ".to_string(), // alignment
user_str.blue(),
system_str.blue()
);
} else {
let stddev_str = format_duration(t_stddev.unwrap(), Some(time_unit));
println!(
" Time ({} ± {}): {:>8} ± {:>8} [User: {}, System: {}]",
"mean".green().bold(),
"σ".green(),
mean_str.green().bold(),
stddev_str.green(),
user_str.blue(),
system_str.blue()
);
println!(
" Range ({} … {}): {:>8} … {:>8} {}",
"min".cyan(),
"max".purple(),
min_str.cyan(),
max_str.purple(),
num_str.dimmed()
);
}
}
// Warnings
let mut warnings = vec![];
// Check execution time
if times_real.iter().any(|&t| t < MIN_EXECUTION_TIME) {
warnings.push(Warnings::FastExecutionTime);
}
// Check programm exit codes
if !all_succeeded {
warnings.push(Warnings::NonZeroExitCode);
}
// Run outlier detection
let scores = modified_zscores(&times_real);
if scores[0] > OUTLIER_THRESHOLD {
warnings.push(Warnings::SlowInitialRun(times_real[0]));
} else if scores.iter().any(|&s| s.abs() > OUTLIER_THRESHOLD) {
warnings.push(Warnings::OutliersDetected);
}
if !warnings.is_empty() {
eprintln!(" ");
for warning in &warnings {
eprintln!(" {}: {}", "Warning".yellow(), warning);
}
}
if options.output_style != OutputStyleOption::Disabled {
println!(" ");
}
// Run cleanup command
let cleanup_cmd = options.cleanup_command.as_ref().map(|cleanup_command| {
Command::new_parametrized(None, cleanup_command, cmd.get_parameters().clone())
});
run_cleanup_command(&options.shell, &cleanup_cmd, options.command_output_policy)?;
Ok(BenchmarkResult {
command: command_name,
mean: t_mean,
stddev: t_stddev,
median: t_median,
user: user_mean,
system: system_mean,
min: t_min,
max: t_max,
times: Some(times_real),
exit_codes,
parameters: cmd
.get_parameters()
.iter()
.map(|(name, value)| ((*name).to_string(), value.to_string()))
.collect(),
})
}

2
src/benchmark/relative_speed.rs
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@ -1,6 +1,6 @@
use std::cmp::Ordering;
use super::result::BenchmarkResult;
use super::benchmark_result::BenchmarkResult;
use crate::util::units::Scalar;
#[derive(Debug)]

497
src/benchmark/scheduler.rs
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@ -1,11 +1,29 @@
use std::cmp;
use std::process::{ExitStatus, Stdio};
use colored::*;
use statistical::{mean, median, standard_deviation};
use super::benchmark_result::BenchmarkResult;
use super::timing_result::TimingResult;
use super::{relative_speed, MIN_EXECUTION_TIME};
use crate::command::Command;
use crate::command::Commands;
use crate::export::ExportManager;
use crate::options::{Options, OutputStyleOption};
use crate::options::{CmdFailureAction, CommandOutputPolicy, Options, OutputStyleOption, Shell};
use crate::outlier_detection::{modified_zscores, OUTLIER_THRESHOLD};
use crate::output::format::{format_duration, format_duration_unit};
use crate::output::progress_bar::get_progress_bar;
use crate::output::warnings::Warnings;
use crate::shell::execute_and_time;
use crate::timer::wallclocktimer::WallClockTimer;
use crate::timer::{TimerStart, TimerStop};
use crate::util::exit_code::extract_exit_code;
use crate::util::min_max::{max, min};
use crate::util::units::Second;
use super::{mean_shell_spawning_time, relative_speed, result::BenchmarkResult, run_benchmark};
use anyhow::Result;
use colored::*;
use anyhow::{bail, Result};
pub struct Scheduler<'a> {
commands: &'a Commands<'a>,
@ -90,3 +108,472 @@ impl<'a> Scheduler<'a> {
}
}
}
/// Correct for shell spawning time
fn subtract_shell_spawning_time(time: Second, shell_spawning_time: Second) -> Second {
if time < shell_spawning_time {
0.0
} else {
time - shell_spawning_time
}
}
/// Run the given shell command and measure the execution time
pub fn time_shell_command(
shell: &Shell,
command: &Command<'_>,
command_output_policy: CommandOutputPolicy,
failure_action: CmdFailureAction,
shell_spawning_time: Option<TimingResult>,
) -> Result<(TimingResult, ExitStatus)> {
let (stdout, stderr) = match command_output_policy {
CommandOutputPolicy::Discard => (Stdio::null(), Stdio::null()),
CommandOutputPolicy::Forward => (Stdio::inherit(), Stdio::inherit()),
};
let wallclock_timer = WallClockTimer::start();
let result = execute_and_time(stdout, stderr, &command.get_shell_command(), shell)?;
let mut time_real = wallclock_timer.stop();
let mut time_user = result.user_time;
let mut time_system = result.system_time;
if failure_action == CmdFailureAction::RaiseError && !result.status.success() {
bail!(
"{}. Use the '-i'/'--ignore-failure' option if you want to ignore this. \
Alternatively, use the '--show-output' option to debug what went wrong.",
result.status.code().map_or(
"The process has been terminated by a signal".into(),
|c| format!("Command terminated with non-zero exit code: {}", c)
)
);
}
// Correct for shell spawning time
if let Some(spawning_time) = shell_spawning_time {
time_real = subtract_shell_spawning_time(time_real, spawning_time.time_real);
time_user = subtract_shell_spawning_time(time_user, spawning_time.time_user);
time_system = subtract_shell_spawning_time(time_system, spawning_time.time_system);
}
Ok((
TimingResult {
time_real,
time_user,
time_system,
},
result.status,
))
}
/// Measure the average shell spawning time
pub fn mean_shell_spawning_time(
shell: &Shell,
style: OutputStyleOption,
command_output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
const COUNT: u64 = 50;
let progress_bar = if style != OutputStyleOption::Disabled {
Some(get_progress_bar(
COUNT,
"Measuring shell spawning time",
style,
))
} else {
None
};
let mut times_real: Vec<Second> = vec![];
let mut times_user: Vec<Second> = vec![];
let mut times_system: Vec<Second> = vec![];
for _ in 0..COUNT {
// Just run the shell without any command
let res = time_shell_command(
shell,
&Command::new(None, ""),
command_output_policy,
CmdFailureAction::RaiseError,
None,
);
match res {
Err(_) => {
let shell_cmd = if cfg!(windows) {
format!("{} /C \"\"", shell)
} else {
format!("{} -c \"\"", shell)
};
bail!(
"Could not measure shell execution time. Make sure you can run '{}'.",
shell_cmd
);
}
Ok((r, _)) => {
times_real.push(r.time_real);
times_user.push(r.time_user);
times_system.push(r.time_system);
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.finish_and_clear()
}
Ok(TimingResult {
time_real: mean(&times_real),
time_user: mean(&times_user),
time_system: mean(&times_system),
})
}
fn run_intermediate_command(
shell: &Shell,
command: &Option<Command<'_>>,
command_output_policy: CommandOutputPolicy,
error_output: &'static str,
) -> Result<TimingResult> {
if let Some(ref cmd) = command {
let res = time_shell_command(
shell,
cmd,
command_output_policy,
CmdFailureAction::RaiseError,
None,
);
if res.is_err() {
bail!(error_output);
}
return res.map(|r| r.0);
}
Ok(TimingResult {
..Default::default()
})
}
/// Run the command specified by `--setup`.
fn run_setup_command(
shell: &Shell,
command: &Option<Command<'_>>,
output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
let error_output = "The setup command terminated with a non-zero exit code. \
Append ' || true' to the command if you are sure that this can be ignored.";
run_intermediate_command(shell, command, output_policy, error_output)
}
/// Run the command specified by `--prepare`.
fn run_preparation_command(
shell: &Shell,
command: &Option<Command<'_>>,
output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
let error_output = "The preparation command terminated with a non-zero exit code. \
Append ' || true' to the command if you are sure that this can be ignored.";
run_intermediate_command(shell, command, output_policy, error_output)
}
/// Run the command specified by `--cleanup`.
fn run_cleanup_command(
shell: &Shell,
command: &Option<Command<'_>>,
output_policy: CommandOutputPolicy,
) -> Result<TimingResult> {
let error_output = "The cleanup command terminated with a non-zero exit code. \
Append ' || true' to the command if you are sure that this can be ignored.";
run_intermediate_command(shell, command, output_policy, error_output)
}
/// Run the benchmark for a single shell command
pub fn run_benchmark(
num: usize,
cmd: &Command<'_>,
shell_spawning_time: TimingResult,
options: &Options,
) -> Result<BenchmarkResult> {
let command_name = cmd.get_name();
if options.output_style != OutputStyleOption::Disabled {
println!(
"{}{}: {}",
"Benchmark ".bold(),
(num + 1).to_string().bold(),
command_name,
);
}
let mut times_real: Vec<Second> = vec![];
let mut times_user: Vec<Second> = vec![];
let mut times_system: Vec<Second> = vec![];
let mut exit_codes: Vec<Option<i32>> = vec![];
let mut all_succeeded = true;
// Run init command
let prepare_cmd = options.preparation_command.as_ref().map(|values| {
let preparation_command = if values.len() == 1 {
&values[0]
} else {
&values[num]
};
Command::new_parametrized(None, preparation_command, cmd.get_parameters().clone())
});
// Run setup command
let setup_cmd = options.setup_command.as_ref().map(|setup_command| {
Command::new_parametrized(None, setup_command, cmd.get_parameters().clone())
});
run_setup_command(&options.shell, &setup_cmd, options.command_output_policy)?;
// Warmup phase
if options.warmup_count > 0 {
let progress_bar = if options.output_style != OutputStyleOption::Disabled {
Some(get_progress_bar(
options.warmup_count,
"Performing warmup runs",
options.output_style,
))
} else {
None
};
for _ in 0..options.warmup_count {
let _ = run_preparation_command(
&options.shell,
&prepare_cmd,
options.command_output_policy,
)?;
let _ = time_shell_command(
&options.shell,
cmd,
options.command_output_policy,
options.command_failure_action,
None,
)?;
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.finish_and_clear()
}
}
// Set up progress bar (and spinner for initial measurement)
let progress_bar = if options.output_style != OutputStyleOption::Disabled {
Some(get_progress_bar(
options.run_bounds.min,
"Initial time measurement",
options.output_style,
))
} else {
None
};
let prepare_result =
run_preparation_command(&options.shell, &prepare_cmd, options.command_output_policy)?;
// Initial timing run
let (res, status) = time_shell_command(
&options.shell,
cmd,
options.command_output_policy,
options.command_failure_action,
Some(shell_spawning_time),
)?;
let success = status.success();
// Determine number of benchmark runs
let runs_in_min_time = (options.min_benchmarking_time
/ (res.time_real + prepare_result.time_real + shell_spawning_time.time_real))
as u64;
let count = {
let min = cmp::max(runs_in_min_time, options.run_bounds.min);
options
.run_bounds
.max
.as_ref()
.map(|max| cmp::min(min, *max))
.unwrap_or(min)
};
let count_remaining = count - 1;
// Save the first result
times_real.push(res.time_real);
times_user.push(res.time_user);
times_system.push(res.time_system);
exit_codes.push(extract_exit_code(status));
all_succeeded = all_succeeded && success;
// Re-configure the progress bar
if let Some(bar) = progress_bar.as_ref() {
bar.set_length(count)
}
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
// Gather statistics
for _ in 0..count_remaining {
run_preparation_command(&options.shell, &prepare_cmd, options.command_output_policy)?;
let msg = {
let mean = format_duration(mean(&times_real), options.time_unit);
format!("Current estimate: {}", mean.to_string().green())
};
if let Some(bar) = progress_bar.as_ref() {
bar.set_message(msg.to_owned())
}
let (res, status) = time_shell_command(
&options.shell,
cmd,
options.command_output_policy,
options.command_failure_action,
Some(shell_spawning_time),
)?;
let success = status.success();
times_real.push(res.time_real);
times_user.push(res.time_user);
times_system.push(res.time_system);
exit_codes.push(extract_exit_code(status));
all_succeeded = all_succeeded && success;
if let Some(bar) = progress_bar.as_ref() {
bar.inc(1)
}
}
if let Some(bar) = progress_bar.as_ref() {
bar.finish_and_clear()
}
// Compute statistical quantities
let t_num = times_real.len();
let t_mean = mean(&times_real);
let t_stddev = if times_real.len() > 1 {
Some(standard_deviation(&times_real, Some(t_mean)))
} else {
None
};
let t_median = median(&times_real);
let t_min = min(&times_real);
let t_max = max(&times_real);
let user_mean = mean(&times_user);
let system_mean = mean(&times_system);
// Formatting and console output
let (mean_str, time_unit) = format_duration_unit(t_mean, options.time_unit);
let min_str = format_duration(t_min, Some(time_unit));
let max_str = format_duration(t_max, Some(time_unit));
let num_str = format!("{} runs", t_num);
let user_str = format_duration(user_mean, Some(time_unit));
let system_str = format_duration(system_mean, Some(time_unit));
if options.output_style != OutputStyleOption::Disabled {
if times_real.len() == 1 {
println!(
" Time ({} ≡): {:>8} {:>8} [User: {}, System: {}]",
"abs".green().bold(),
mean_str.green().bold(),
" ".to_string(), // alignment
user_str.blue(),
system_str.blue()
);
} else {
let stddev_str = format_duration(t_stddev.unwrap(), Some(time_unit));
println!(
" Time ({} ± {}): {:>8} ± {:>8} [User: {}, System: {}]",
"mean".green().bold(),
"σ".green(),
mean_str.green().bold(),
stddev_str.green(),
user_str.blue(),
system_str.blue()
);
println!(
" Range ({} … {}): {:>8} … {:>8} {}",
"min".cyan(),
"max".purple(),
min_str.cyan(),
max_str.purple(),
num_str.dimmed()
);
}
}
// Warnings
let mut warnings = vec![];
// Check execution time
if times_real.iter().any(|&t| t < MIN_EXECUTION_TIME) {
warnings.push(Warnings::FastExecutionTime);
}
// Check programm exit codes
if !all_succeeded {
warnings.push(Warnings::NonZeroExitCode);
}
// Run outlier detection
let scores = modified_zscores(&times_real);
if scores[0] > OUTLIER_THRESHOLD {
warnings.push(Warnings::SlowInitialRun(times_real[0]));
} else if scores.iter().any(|&s| s.abs() > OUTLIER_THRESHOLD) {
warnings.push(Warnings::OutliersDetected);
}
if !warnings.is_empty() {
eprintln!(" ");
for warning in &warnings {
eprintln!(" {}: {}", "Warning".yellow(), warning);
}
}
if options.output_style != OutputStyleOption::Disabled {
println!(" ");
}
// Run cleanup command
let cleanup_cmd = options.cleanup_command.as_ref().map(|cleanup_command| {
Command::new_parametrized(None, cleanup_command, cmd.get_parameters().clone())
});
run_cleanup_command(&options.shell, &cleanup_cmd, options.command_output_policy)?;
Ok(BenchmarkResult {
command: command_name,
mean: t_mean,
stddev: t_stddev,
median: t_median,
user: user_mean,
system: system_mean,
min: t_min,
max: t_max,
times: Some(times_real),
exit_codes,
parameters: cmd
.get_parameters()
.iter()
.map(|(name, value)| ((*name).to_string(), value.to_string()))
.collect(),
})
}

14
src/benchmark/timing_result.rs Normal file
View File

@ -0,0 +1,14 @@
use crate::util::units::Second;
/// Results from timing a single command
#[derive(Debug, Default, Copy, Clone)]
pub struct TimingResult {
/// Wall clock time
pub time_real: Second,
/// Time spent in user mode
pub time_user: Second,
/// Time spent in kernel mode
pub time_system: Second,
}

2
src/export/asciidoc.rs
View File

@ -1,5 +1,5 @@
use crate::benchmark::benchmark_result::BenchmarkResult;
use crate::benchmark::relative_speed::{self, BenchmarkResultWithRelativeSpeed};
use crate::benchmark::result::BenchmarkResult;
use crate::output::format::format_duration_value;
use crate::util::units::Unit;

2
src/export/csv.rs
View File

@ -3,7 +3,7 @@ use std::borrow::Cow;
use csv::WriterBuilder;
use super::Exporter;
use crate::benchmark::result::BenchmarkResult;
use crate::benchmark::benchmark_result::BenchmarkResult;
use crate::util::units::Unit;
use anyhow::Result;

2
src/export/json.rs
View File

@ -2,7 +2,7 @@ use serde::*;
use serde_json::to_vec_pretty;
use super::Exporter;
use crate::benchmark::result::BenchmarkResult;
use crate::benchmark::benchmark_result::BenchmarkResult;
use crate::util::units::Unit;
use anyhow::Result;

2
src/export/markdown.rs
View File

@ -1,6 +1,6 @@
use super::Exporter;
use crate::benchmark::benchmark_result::BenchmarkResult;
use crate::benchmark::relative_speed::{self, BenchmarkResultWithRelativeSpeed};
use crate::benchmark::result::BenchmarkResult;
use crate::output::format::format_duration_value;
use crate::util::units::Unit;

2
src/export/mod.rs
View File

@ -11,7 +11,7 @@ use self::csv::CsvExporter;
use self::json::JsonExporter;
use self::markdown::MarkdownExporter;
use crate::benchmark::result::BenchmarkResult;
use crate::benchmark::benchmark_result::BenchmarkResult;
use crate::util::units::Unit;
use anyhow::{Context, Result};