diff options
Diffstat (limited to 'vendor/tracing/benches')
| -rw-r--r-- | vendor/tracing/benches/baseline.rs | 24 | ||||
| -rw-r--r-- | vendor/tracing/benches/dispatch_get_clone.rs | 15 | ||||
| -rw-r--r-- | vendor/tracing/benches/dispatch_get_ref.rs | 16 | ||||
| -rw-r--r-- | vendor/tracing/benches/empty_span.rs | 43 | ||||
| -rw-r--r-- | vendor/tracing/benches/enter_span.rs | 16 | ||||
| -rw-r--r-- | vendor/tracing/benches/event.rs | 12 | ||||
| -rw-r--r-- | vendor/tracing/benches/global_subscriber.rs | 136 | ||||
| -rw-r--r-- | vendor/tracing/benches/no_subscriber.rs | 101 | ||||
| -rw-r--r-- | vendor/tracing/benches/shared.rs | 160 | ||||
| -rw-r--r-- | vendor/tracing/benches/span_fields.rs | 23 | ||||
| -rw-r--r-- | vendor/tracing/benches/span_no_fields.rs | 13 | ||||
| -rw-r--r-- | vendor/tracing/benches/span_repeated.rs | 20 | ||||
| -rw-r--r-- | vendor/tracing/benches/subscriber.rs | 189 |
13 files changed, 342 insertions, 426 deletions
diff --git a/vendor/tracing/benches/baseline.rs b/vendor/tracing/benches/baseline.rs new file mode 100644 index 000000000..93c14f422 --- /dev/null +++ b/vendor/tracing/benches/baseline.rs @@ -0,0 +1,24 @@ +use criterion::{black_box, criterion_group, criterion_main, Criterion}; + +fn bench(c: &mut Criterion) { + use std::sync::atomic::{AtomicUsize, Ordering}; + + let mut group = c.benchmark_group("comparison"); + group.bench_function("relaxed_load", |b| { + let foo = AtomicUsize::new(1); + b.iter(|| black_box(foo.load(Ordering::Relaxed))); + }); + group.bench_function("acquire_load", |b| { + let foo = AtomicUsize::new(1); + b.iter(|| black_box(foo.load(Ordering::Acquire))) + }); + group.bench_function("log", |b| { + b.iter(|| { + log::log!(log::Level::Info, "log"); + }) + }); + group.finish(); +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/dispatch_get_clone.rs b/vendor/tracing/benches/dispatch_get_clone.rs new file mode 100644 index 000000000..15577c696 --- /dev/null +++ b/vendor/tracing/benches/dispatch_get_clone.rs @@ -0,0 +1,15 @@ +use criterion::{black_box, criterion_group, criterion_main, Criterion}; + +mod shared; + +fn bench(c: &mut Criterion) { + shared::for_all_dispatches(&mut c.benchmark_group("Dispatch::get_clone"), |b| { + b.iter(|| { + let current = tracing::dispatcher::get_default(|current| current.clone()); + black_box(current); + }) + }); +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/dispatch_get_ref.rs b/vendor/tracing/benches/dispatch_get_ref.rs new file mode 100644 index 000000000..a59c34379 --- /dev/null +++ b/vendor/tracing/benches/dispatch_get_ref.rs @@ -0,0 +1,16 @@ +use criterion::{black_box, criterion_group, criterion_main, Criterion}; + +mod shared; + +fn bench(c: &mut Criterion) { + shared::for_all_dispatches(&mut c.benchmark_group("Dispatch::get_ref"), |b| { + b.iter(|| { + tracing::dispatcher::get_default(|current| { + black_box(¤t); + }) + }) + }); +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/empty_span.rs b/vendor/tracing/benches/empty_span.rs new file mode 100644 index 000000000..fb38b08e1 --- /dev/null +++ b/vendor/tracing/benches/empty_span.rs @@ -0,0 +1,43 @@ +use criterion::{black_box, criterion_group, criterion_main, Criterion}; + +mod shared; + +fn bench(c: &mut Criterion) { + let mut group = c.benchmark_group("empty_span"); + shared::for_all_dispatches(&mut group, |b| { + b.iter(|| { + let span = tracing::span::Span::none(); + black_box(&span); + }) + }); + group.bench_function("baseline_struct", |b| { + b.iter(|| { + let span = FakeEmptySpan::new(); + black_box(&span); + }) + }); +} + +struct FakeEmptySpan { + inner: Option<(usize, std::sync::Arc<()>)>, + meta: Option<&'static ()>, +} + +impl FakeEmptySpan { + fn new() -> Self { + Self { + inner: None, + meta: None, + } + } +} + +impl Drop for FakeEmptySpan { + fn drop(&mut self) { + black_box(&self.inner); + black_box(&self.meta); + } +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/enter_span.rs b/vendor/tracing/benches/enter_span.rs new file mode 100644 index 000000000..757350a53 --- /dev/null +++ b/vendor/tracing/benches/enter_span.rs @@ -0,0 +1,16 @@ +use criterion::{criterion_group, criterion_main, Criterion}; +use tracing::{span, Level}; + +mod shared; + +fn bench(c: &mut Criterion) { + shared::for_all_dispatches(&mut c.benchmark_group("enter_span"), |b| { + let span = span!(Level::TRACE, "span"); + b.iter(|| { + let _span = span.enter(); + }) + }); +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/event.rs b/vendor/tracing/benches/event.rs new file mode 100644 index 000000000..164932548 --- /dev/null +++ b/vendor/tracing/benches/event.rs @@ -0,0 +1,12 @@ +use criterion::{criterion_group, criterion_main, Criterion}; + +mod shared; + +fn bench(c: &mut Criterion) { + shared::for_all_recording(&mut c.benchmark_group("event"), |b| { + b.iter(|| tracing::info!("hello world!")) + }); +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/global_subscriber.rs b/vendor/tracing/benches/global_subscriber.rs deleted file mode 100644 index 83519610a..000000000 --- a/vendor/tracing/benches/global_subscriber.rs +++ /dev/null @@ -1,136 +0,0 @@ -use std::fmt::Write; - -use criterion::{black_box, criterion_group, criterion_main, Criterion}; -use tracing::Level; - -use tracing::{span, Event, Id, Metadata}; - -/// A subscriber that is enabled but otherwise does nothing. -struct EnabledSubscriber; - -impl tracing::Subscriber for EnabledSubscriber { - fn new_span(&self, span: &span::Attributes<'_>) -> Id { - let _ = span; - Id::from_u64(0xDEAD_FACE) - } - - fn event(&self, event: &Event<'_>) { - let _ = event; - } - - fn record(&self, span: &Id, values: &span::Record<'_>) { - let _ = (span, values); - } - - fn record_follows_from(&self, span: &Id, follows: &Id) { - let _ = (span, follows); - } - - fn enabled(&self, metadata: &Metadata<'_>) -> bool { - let _ = metadata; - true - } - - fn enter(&self, span: &Id) { - let _ = span; - } - - fn exit(&self, span: &Id) { - let _ = span; - } -} - -const NOP_LOGGER: NopLogger = NopLogger; - -struct NopLogger; - -impl log::Log for NopLogger { - fn enabled(&self, _metadata: &log::Metadata) -> bool { - true - } - - fn log(&self, record: &log::Record) { - if self.enabled(record.metadata()) { - let mut this = self; - let _ = write!(this, "{}", record.args()); - } - } - - fn flush(&self) {} -} - -impl Write for &NopLogger { - fn write_str(&mut self, s: &str) -> std::fmt::Result { - black_box(s); - Ok(()) - } -} - -const N_SPANS: usize = 100; - -fn criterion_benchmark(c: &mut Criterion) { - let mut c = c.benchmark_group("global/subscriber"); - let _ = tracing::subscriber::set_global_default(EnabledSubscriber); - let _ = log::set_logger(&NOP_LOGGER); - log::set_max_level(log::LevelFilter::Trace); - c.bench_function("span_no_fields", |b| b.iter(|| span!(Level::TRACE, "span"))); - - c.bench_function("event", |b| { - b.iter(|| { - tracing::event!(Level::TRACE, "hello"); - }) - }); - - c.bench_function("enter_span", |b| { - let span = span!(Level::TRACE, "span"); - #[allow(clippy::unit_arg)] - b.iter(|| black_box(span.in_scope(|| {}))) - }); - - c.bench_function("span_repeatedly", |b| { - #[inline] - fn mk_span(i: u64) -> tracing::Span { - span!(Level::TRACE, "span", i = i) - } - - let n = black_box(N_SPANS); - b.iter(|| (0..n).fold(mk_span(0), |_, i| mk_span(i as u64))) - }); - - c.bench_function("span_with_fields", |b| { - b.iter(|| { - span!( - Level::TRACE, - "span", - foo = "foo", - bar = "bar", - baz = 3, - quuux = tracing::field::debug(0.99) - ) - }); - }); -} - -fn bench_dispatch(c: &mut Criterion) { - let mut group = c.benchmark_group("global/dispatch"); - let _ = tracing::subscriber::set_global_default(EnabledSubscriber); - let _ = log::set_logger(&NOP_LOGGER); - log::set_max_level(log::LevelFilter::Trace); - group.bench_function("get_ref", |b| { - b.iter(|| { - tracing::dispatcher::get_default(|current| { - black_box(¤t); - }) - }) - }); - group.bench_function("get_clone", |b| { - b.iter(|| { - let current = tracing::dispatcher::get_default(|current| current.clone()); - black_box(current); - }) - }); - group.finish(); -} - -criterion_group!(benches, criterion_benchmark, bench_dispatch); -criterion_main!(benches); diff --git a/vendor/tracing/benches/no_subscriber.rs b/vendor/tracing/benches/no_subscriber.rs deleted file mode 100644 index e0f82b56a..000000000 --- a/vendor/tracing/benches/no_subscriber.rs +++ /dev/null @@ -1,101 +0,0 @@ -use criterion::{black_box, criterion_group, criterion_main, Criterion}; -use tracing::Level; - -struct FakeEmptySpan { - inner: Option<(usize, std::sync::Arc<()>)>, - meta: Option<&'static ()>, -} - -impl FakeEmptySpan { - fn new() -> Self { - Self { - inner: None, - meta: None, - } - } -} - -impl Drop for FakeEmptySpan { - fn drop(&mut self) { - black_box(&self.inner); - black_box(&self.meta); - } -} - -fn bench_no_subscriber(c: &mut Criterion) { - use std::sync::atomic::{AtomicUsize, Ordering}; - - let mut group = c.benchmark_group("no_subscriber"); - - group.bench_function("span", |b| { - b.iter(|| { - let span = tracing::span!(Level::TRACE, "span"); - black_box(&span); - }) - }); - group.bench_function("span_enter", |b| { - b.iter(|| { - let span = tracing::span!(Level::TRACE, "span"); - let _e = span.enter(); - }) - }); - group.bench_function("empty_span", |b| { - b.iter(|| { - let span = tracing::span::Span::none(); - black_box(&span); - }); - }); - group.bench_function("empty_struct", |b| { - b.iter(|| { - let span = FakeEmptySpan::new(); - black_box(&span); - }) - }); - group.bench_function("event", |b| { - b.iter(|| { - tracing::event!(Level::TRACE, "hello"); - }) - }); - group.bench_function("relaxed_load", |b| { - let foo = AtomicUsize::new(1); - b.iter(|| black_box(foo.load(Ordering::Relaxed))); - }); - group.bench_function("acquire_load", |b| { - let foo = AtomicUsize::new(1); - b.iter(|| black_box(foo.load(Ordering::Acquire))) - }); - group.bench_function("log", |b| { - b.iter(|| { - log::log!(log::Level::Info, "log"); - }) - }); - group.finish(); -} - -fn bench_fields(c: &mut Criterion) { - let mut group = c.benchmark_group("no_subscriber_field"); - group.bench_function("span", |b| { - b.iter(|| { - black_box(tracing::span!( - Level::TRACE, - "span", - foo = tracing::field::display(format!("bar {:?}", 2)) - )); - }) - }); - group.bench_function("event", |b| { - b.iter(|| { - tracing::event!( - Level::TRACE, - foo = tracing::field::display(format!("bar {:?}", 2)) - ); - }) - }); - group.bench_function("log", |b| { - b.iter(|| log::log!(log::Level::Trace, "{}", format!("bar {:?}", 2))) - }); - group.finish(); -} - -criterion_group!(benches, bench_no_subscriber, bench_fields); -criterion_main!(benches); diff --git a/vendor/tracing/benches/shared.rs b/vendor/tracing/benches/shared.rs new file mode 100644 index 000000000..56508c4ab --- /dev/null +++ b/vendor/tracing/benches/shared.rs @@ -0,0 +1,160 @@ +#![allow(dead_code)] +use criterion::{black_box, measurement::WallTime, Bencher}; +use tracing::{field, span, Event, Id, Metadata}; + +use std::{ + fmt::{self, Write}, + sync::{Mutex, MutexGuard}, +}; + +pub fn for_all_recording( + group: &mut criterion::BenchmarkGroup<'_, WallTime>, + mut iter: impl FnMut(&mut Bencher<'_, WallTime>), +) { + // first, run benchmarks with no subscriber + group.bench_function("none", &mut iter); + + // then, run benchmarks with a scoped default subscriber + tracing::subscriber::with_default(EnabledSubscriber, || { + group.bench_function("scoped", &mut iter) + }); + + let subscriber = VisitingSubscriber(Mutex::new(String::from(""))); + tracing::subscriber::with_default(subscriber, || { + group.bench_function("scoped_recording", &mut iter); + }); + + // finally, set a global default subscriber, and run the benchmarks again. + tracing::subscriber::set_global_default(EnabledSubscriber) + .expect("global default should not have already been set!"); + let _ = log::set_logger(&NOP_LOGGER); + log::set_max_level(log::LevelFilter::Trace); + group.bench_function("global", &mut iter); +} + +pub fn for_all_dispatches( + group: &mut criterion::BenchmarkGroup<'_, WallTime>, + mut iter: impl FnMut(&mut Bencher<'_, WallTime>), +) { + // first, run benchmarks with no subscriber + group.bench_function("none", &mut iter); + + // then, run benchmarks with a scoped default subscriber + tracing::subscriber::with_default(EnabledSubscriber, || { + group.bench_function("scoped", &mut iter) + }); + + // finally, set a global default subscriber, and run the benchmarks again. + tracing::subscriber::set_global_default(EnabledSubscriber) + .expect("global default should not have already been set!"); + let _ = log::set_logger(&NOP_LOGGER); + log::set_max_level(log::LevelFilter::Trace); + group.bench_function("global", &mut iter); +} + +const NOP_LOGGER: NopLogger = NopLogger; + +struct NopLogger; + +impl log::Log for NopLogger { + fn enabled(&self, _metadata: &log::Metadata) -> bool { + true + } + + fn log(&self, record: &log::Record) { + if self.enabled(record.metadata()) { + let mut this = self; + let _ = write!(this, "{}", record.args()); + } + } + + fn flush(&self) {} +} + +impl Write for &NopLogger { + fn write_str(&mut self, s: &str) -> std::fmt::Result { + black_box(s); + Ok(()) + } +} + +/// Simulates a subscriber that records span data. +struct VisitingSubscriber(Mutex<String>); + +struct Visitor<'a>(MutexGuard<'a, String>); + +impl<'a> field::Visit for Visitor<'a> { + fn record_debug(&mut self, _field: &field::Field, value: &dyn fmt::Debug) { + let _ = write!(&mut *self.0, "{:?}", value); + } +} + +impl tracing::Subscriber for VisitingSubscriber { + fn new_span(&self, span: &span::Attributes<'_>) -> Id { + let mut visitor = Visitor(self.0.lock().unwrap()); + span.record(&mut visitor); + Id::from_u64(0xDEAD_FACE) + } + + fn record(&self, _span: &Id, values: &span::Record<'_>) { + let mut visitor = Visitor(self.0.lock().unwrap()); + values.record(&mut visitor); + } + + fn event(&self, event: &Event<'_>) { + let mut visitor = Visitor(self.0.lock().unwrap()); + event.record(&mut visitor); + } + + fn record_follows_from(&self, span: &Id, follows: &Id) { + let _ = (span, follows); + } + + fn enabled(&self, metadata: &Metadata<'_>) -> bool { + let _ = metadata; + true + } + + fn enter(&self, span: &Id) { + let _ = span; + } + + fn exit(&self, span: &Id) { + let _ = span; + } +} + +/// A subscriber that is enabled but otherwise does nothing. +struct EnabledSubscriber; + +impl tracing::Subscriber for EnabledSubscriber { + fn new_span(&self, span: &span::Attributes<'_>) -> Id { + let _ = span; + Id::from_u64(0xDEAD_FACE) + } + + fn event(&self, event: &Event<'_>) { + let _ = event; + } + + fn record(&self, span: &Id, values: &span::Record<'_>) { + let _ = (span, values); + } + + fn record_follows_from(&self, span: &Id, follows: &Id) { + let _ = (span, follows); + } + + fn enabled(&self, metadata: &Metadata<'_>) -> bool { + let _ = metadata; + true + } + + fn enter(&self, span: &Id) { + let _ = span; + } + + fn exit(&self, span: &Id) { + let _ = span; + } +} diff --git a/vendor/tracing/benches/span_fields.rs b/vendor/tracing/benches/span_fields.rs new file mode 100644 index 000000000..5ad828982 --- /dev/null +++ b/vendor/tracing/benches/span_fields.rs @@ -0,0 +1,23 @@ +use criterion::{criterion_group, criterion_main, Criterion}; +use tracing::{span, Level}; + +mod shared; + +fn bench(c: &mut Criterion) { + shared::for_all_recording(&mut c.benchmark_group("span_fields"), |b| { + b.iter(|| { + let span = span!( + Level::TRACE, + "span", + foo = "foo", + bar = "bar", + baz = 3, + quuux = tracing::field::debug(0.99) + ); + criterion::black_box(span) + }) + }); +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/span_no_fields.rs b/vendor/tracing/benches/span_no_fields.rs new file mode 100644 index 000000000..8a1ff6e04 --- /dev/null +++ b/vendor/tracing/benches/span_no_fields.rs @@ -0,0 +1,13 @@ +use criterion::{criterion_group, criterion_main, Criterion}; +use tracing::{span, Level}; + +mod shared; + +fn bench(c: &mut Criterion) { + shared::for_all_recording(&mut c.benchmark_group("span_no_fields"), |b| { + b.iter(|| span!(Level::TRACE, "span")) + }); +} + +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/span_repeated.rs b/vendor/tracing/benches/span_repeated.rs new file mode 100644 index 000000000..4c6ac409d --- /dev/null +++ b/vendor/tracing/benches/span_repeated.rs @@ -0,0 +1,20 @@ +use criterion::{black_box, criterion_group, criterion_main, Criterion}; +use tracing::{span, Level}; + +mod shared; + +fn bench(c: &mut Criterion) { + shared::for_all_recording(&mut c.benchmark_group("span_repeated"), |b| { + let n = black_box(N_SPANS); + b.iter(|| (0..n).fold(mk_span(0), |_, i| mk_span(i as u64))) + }); +} + +#[inline] +fn mk_span(i: u64) -> tracing::Span { + span!(Level::TRACE, "span", i = i) +} + +const N_SPANS: usize = 100; +criterion_group!(benches, bench); +criterion_main!(benches); diff --git a/vendor/tracing/benches/subscriber.rs b/vendor/tracing/benches/subscriber.rs deleted file mode 100644 index c6418010f..000000000 --- a/vendor/tracing/benches/subscriber.rs +++ /dev/null @@ -1,189 +0,0 @@ -use criterion::{black_box, criterion_group, criterion_main, Criterion}; -use tracing::Level; - -use std::{ - fmt, - sync::{Mutex, MutexGuard}, -}; -use tracing::{field, span, Event, Id, Metadata}; - -/// A subscriber that is enabled but otherwise does nothing. -struct EnabledSubscriber; - -impl tracing::Subscriber for EnabledSubscriber { - fn new_span(&self, span: &span::Attributes<'_>) -> Id { - let _ = span; - Id::from_u64(0xDEAD_FACE) - } - - fn event(&self, event: &Event<'_>) { - let _ = event; - } - - fn record(&self, span: &Id, values: &span::Record<'_>) { - let _ = (span, values); - } - - fn record_follows_from(&self, span: &Id, follows: &Id) { - let _ = (span, follows); - } - - fn enabled(&self, metadata: &Metadata<'_>) -> bool { - let _ = metadata; - true - } - - fn enter(&self, span: &Id) { - let _ = span; - } - - fn exit(&self, span: &Id) { - let _ = span; - } -} - -/// Simulates a subscriber that records span data. -struct VisitingSubscriber(Mutex<String>); - -struct Visitor<'a>(MutexGuard<'a, String>); - -impl<'a> field::Visit for Visitor<'a> { - fn record_debug(&mut self, _field: &field::Field, value: &dyn fmt::Debug) { - use std::fmt::Write; - let _ = write!(&mut *self.0, "{:?}", value); - } -} - -impl tracing::Subscriber for VisitingSubscriber { - fn new_span(&self, span: &span::Attributes<'_>) -> Id { - let mut visitor = Visitor(self.0.lock().unwrap()); - span.record(&mut visitor); - Id::from_u64(0xDEAD_FACE) - } - - fn record(&self, _span: &Id, values: &span::Record<'_>) { - let mut visitor = Visitor(self.0.lock().unwrap()); - values.record(&mut visitor); - } - - fn event(&self, event: &Event<'_>) { - let mut visitor = Visitor(self.0.lock().unwrap()); - event.record(&mut visitor); - } - - fn record_follows_from(&self, span: &Id, follows: &Id) { - let _ = (span, follows); - } - - fn enabled(&self, metadata: &Metadata<'_>) -> bool { - let _ = metadata; - true - } - - fn enter(&self, span: &Id) { - let _ = span; - } - - fn exit(&self, span: &Id) { - let _ = span; - } -} - -const N_SPANS: usize = 100; - -fn criterion_benchmark(c: &mut Criterion) { - c.bench_function("span_no_fields", |b| { - tracing::subscriber::with_default(EnabledSubscriber, || { - b.iter(|| span!(Level::TRACE, "span")) - }); - }); - - c.bench_function("enter_span", |b| { - tracing::subscriber::with_default(EnabledSubscriber, || { - let span = span!(Level::TRACE, "span"); - #[allow(clippy::unit_arg)] - b.iter(|| black_box(span.in_scope(|| {}))) - }); - }); - - c.bench_function("span_repeatedly", |b| { - #[inline] - fn mk_span(i: u64) -> tracing::Span { - span!(Level::TRACE, "span", i = i) - } - - let n = black_box(N_SPANS); - tracing::subscriber::with_default(EnabledSubscriber, || { - b.iter(|| (0..n).fold(mk_span(0), |_, i| mk_span(i as u64))) - }); - }); - - c.bench_function("span_with_fields", |b| { - tracing::subscriber::with_default(EnabledSubscriber, || { - b.iter(|| { - span!( - Level::TRACE, - "span", - foo = "foo", - bar = "bar", - baz = 3, - quuux = tracing::field::debug(0.99) - ) - }) - }); - }); - - c.bench_function("span_with_fields_record", |b| { - let subscriber = VisitingSubscriber(Mutex::new(String::from(""))); - tracing::subscriber::with_default(subscriber, || { - b.iter(|| { - span!( - Level::TRACE, - "span", - foo = "foo", - bar = "bar", - baz = 3, - quuux = tracing::field::debug(0.99) - ) - }) - }); - }); -} - -fn bench_dispatch(c: &mut Criterion) { - let mut group = c.benchmark_group("dispatch"); - group.bench_function("no_dispatch_get_ref", |b| { - b.iter(|| { - tracing::dispatcher::get_default(|current| { - black_box(¤t); - }) - }) - }); - group.bench_function("no_dispatch_get_clone", |b| { - b.iter(|| { - let current = tracing::dispatcher::get_default(|current| current.clone()); - black_box(current); - }) - }); - group.bench_function("get_ref", |b| { - tracing::subscriber::with_default(EnabledSubscriber, || { - b.iter(|| { - tracing::dispatcher::get_default(|current| { - black_box(¤t); - }) - }) - }) - }); - group.bench_function("get_clone", |b| { - tracing::subscriber::with_default(EnabledSubscriber, || { - b.iter(|| { - let current = tracing::dispatcher::get_default(|current| current.clone()); - black_box(current); - }) - }) - }); - group.finish(); -} - -criterion_group!(benches, criterion_benchmark, bench_dispatch); -criterion_main!(benches); |