sharkdp/hyperfine
1
1
Fork 0
mirror of https://github.com/sharkdp/hyperfine.git synced 2024-11-22 11:43:03 +03:00
Code Issues Projects Releases Wiki Activity

Move functionality to scheduler

Browse Source
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

0
src/benchmark/result.rs → src/benchmark/benchmark_result.rs
View File

505
src/benchmark/mod.rs
View File

@ -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
View File

@ -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
View File

@ -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};