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Add tracing-trace

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This commit is contained in:
Louis Dureuil 2024-01-23 09:40:07 +01:00
parent a616a1d37b
commit 89401d097b
No known key found for this signature in database
13 changed files with 998 additions and 6 deletions
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139
Cargo.lock generated
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@ -961,6 +961,18 @@ version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "67ba02a97a2bd10f4b59b25c7973101c79642302776489e030cd13cdab09ed15"
[[package]]
name = "color-spantrace"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cd6be1b2a7e382e2b98b43b2adcca6bb0e465af0bdd38123873ae61eb17a72c2"
dependencies = [
"once_cell",
"owo-colors",
"tracing-core",
"tracing-error",
]
[[package]]
name = "colorchoice"
version = "1.0.0"
@ -1286,6 +1298,15 @@ dependencies = [
"syn 2.0.48",
]
[[package]]
name = "debugid"
version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bef552e6f588e446098f6ba40d89ac146c8c7b64aade83c051ee00bb5d2bc18d"
dependencies = [
"uuid",
]
[[package]]
name = "deduplicating_array"
version = "0.1.5"
@ -1911,6 +1932,19 @@ dependencies = [
"byteorder",
]
[[package]]
name = "fxprof-processed-profile"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "27d12c0aed7f1e24276a241aadc4cb8ea9f83000f34bc062b7cc2d51e3b0fabd"
dependencies = [
"bitflags 2.4.1",
"debugid",
"fxhash",
"serde",
"serde_json",
]
[[package]]
name = "gemm"
version = "0.17.0"
@ -3916,6 +3950,16 @@ dependencies = [
"winapi",
]
[[package]]
name = "nu-ansi-term"
version = "0.46.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "77a8165726e8236064dbb45459242600304b42a5ea24ee2948e18e023bf7ba84"
dependencies = [
"overload",
"winapi",
]
[[package]]
name = "num-bigint"
version = "0.4.3"
@ -4037,6 +4081,18 @@ dependencies = [
"num-traits",
]
[[package]]
name = "overload"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
[[package]]
name = "owo-colors"
version = "3.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c1b04fb49957986fdce4d6ee7a65027d55d4b6d2265e5848bbb507b58ccfdb6f"
[[package]]
name = "page_size"
version = "0.5.0"
@ -4994,6 +5050,15 @@ dependencies = [
"digest",
]
[[package]]
name = "sharded-slab"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f40ca3c46823713e0d4209592e8d6e826aa57e928f09752619fc696c499637f6"
dependencies = [
"lazy_static",
]
[[package]]
name = "signal-hook-registry"
version = "1.4.1"
@ -5326,6 +5391,16 @@ dependencies = [
"syn 2.0.48",
]
[[package]]
name = "thread_local"
version = "1.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3fdd6f064ccff2d6567adcb3873ca630700f00b5ad3f060c25b5dcfd9a4ce152"
dependencies = [
"cfg-if",
"once_cell",
]
[[package]]
name = "tiktoken-rs"
version = "0.5.8"
@ -5554,11 +5629,10 @@ checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
[[package]]
name = "tracing"
version = "0.1.37"
version = "0.1.40"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ce8c33a8d48bd45d624a6e523445fd21ec13d3653cd51f681abf67418f54eb8"
checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
dependencies = [
"cfg-if",
"log",
"pin-project-lite",
"tracing-attributes",
@ -5578,11 +5652,60 @@ dependencies = [
[[package]]
name = "tracing-core"
version = "0.1.31"
version = "0.1.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0955b8137a1df6f1a2e9a37d8a6656291ff0297c1a97c24e0d8425fe2312f79a"
checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
dependencies = [
"once_cell",
"valuable",
]
[[package]]
name = "tracing-error"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d686ec1c0f384b1277f097b2f279a2ecc11afe8c133c1aabf036a27cb4cd206e"
dependencies = [
"tracing",
"tracing-subscriber",
]
[[package]]
name = "tracing-log"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ee855f1f400bd0e5c02d150ae5de3840039a3f54b025156404e34c23c03f47c3"
dependencies = [
"log",
"once_cell",
"tracing-core",
]
[[package]]
name = "tracing-subscriber"
version = "0.3.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ad0f048c97dbd9faa9b7df56362b8ebcaa52adb06b498c050d2f4e32f90a7a8b"
dependencies = [
"nu-ansi-term",
"sharded-slab",
"smallvec",
"thread_local",
"tracing-core",
"tracing-log",
]
[[package]]
name = "tracing-trace"
version = "0.1.0"
dependencies = [
"color-spantrace",
"fxprof-processed-profile",
"serde",
"serde_json",
"tracing",
"tracing-error",
"tracing-subscriber",
]
[[package]]
@ -5758,6 +5881,12 @@ dependencies = [
"serde",
]
[[package]]
name = "valuable"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
[[package]]
name = "vcpkg"
version = "0.2.15"

6
Cargo.toml
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@ -16,12 +16,16 @@ members = [
"json-depth-checker",
"benchmarks",
"fuzzers",
"tracing-trace",
"xtask",
]
[workspace.package]
version = "1.6.1"
authors = ["Quentin de Quelen <quentin@dequelen.me>", "Clément Renault <clement@meilisearch.com>"]
authors = [
"Quentin de Quelen <quentin@dequelen.me>",
"Clément Renault <clement@meilisearch.com>",
]
description = "Meilisearch HTTP server"
homepage = "https://meilisearch.com"
readme = "README.md"

1
tracing-trace/.gitignore vendored Normal file
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@ -0,0 +1 @@
/target

15
tracing-trace/Cargo.toml Normal file
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@ -0,0 +1,15 @@
[package]
name = "tracing-trace"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
color-spantrace = "0.2.1"
fxprof-processed-profile = "0.6.0"
serde = { version = "1.0.195", features = ["derive"] }
serde_json = "1.0.111"
tracing = "0.1.40"
tracing-error = "0.2.0"
tracing-subscriber = "0.3.18"

18
tracing-trace/src/bin/trace-to-firefox.rs Normal file
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@ -0,0 +1,18 @@
use std::ffi::OsString;
use std::io::Write;
fn main() {
let input_file = std::env::args_os().nth(1).expect("missing <INPUT> file");
let input =
std::io::BufReader::new(std::fs::File::open(&input_file).expect("could not open <INPUT>"));
let trace = tracing_trace::TraceReader::new(input);
let profile =
tracing_trace::processor::firefox_profiler::to_firefox_profile(trace, "Meilisearch")
.unwrap();
let mut output_file = OsString::new();
output_file.push("firefox-");
output_file.push(input_file);
let mut output_file = std::io::BufWriter::new(std::fs::File::create(output_file).unwrap());
serde_json::to_writer(&mut output_file, &profile).unwrap();
output_file.flush().unwrap();
}

96
tracing-trace/src/entry.rs Normal file
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@ -0,0 +1,96 @@
use std::borrow::Cow;
use serde::{Deserialize, Serialize};
use tracing::span::Id as TracingId;
#[derive(Debug, Serialize, Deserialize)]
pub enum Entry {
/// A code location was accessed for the first time
NewCallsite(NewCallsite),
/// A new thread was accessed
NewThread(NewThread),
/// A new call started
NewSpan(NewSpan),
/// An already in-flight call started doing work.
///
/// For synchronous functions, open should always be followed immediately by enter, exit and close,
/// but for asynchronous functions, work can suspend (exiting the span without closing it), and then
/// later resume (entering the span again without opening it).
///
/// The timer for a span only starts when the span is entered.
SpanEnter(SpanEnter),
/// An in-flight call suspended and paused work.
///
/// For synchronous functions, exit should always be followed immediately by close,
/// but for asynchronous functions, work can suspend and then later resume.
///
/// The timer for a span pauses when the span is exited.
SpanExit(SpanExit),
/// A call ended
SpanClose(SpanClose),
}
#[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq, Hash)]
pub struct SpanId(u64);
impl From<&TracingId> for SpanId {
fn from(value: &TracingId) -> Self {
Self(value.into_u64())
}
}
#[derive(Debug, Serialize, Deserialize)]
pub struct NewCallsite {
pub call_id: ResourceId,
pub name: Cow<'static, str>,
pub module_path: Option<Cow<'static, str>>,
pub file: Option<Cow<'static, str>>,
pub line: Option<u32>,
pub target: Cow<'static, str>,
}
#[derive(Debug, Serialize, Deserialize)]
pub struct NewThread {
pub thread_id: ResourceId,
pub name: Option<String>,
}
#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
pub struct SpanEnter {
pub id: SpanId,
pub time: std::time::Duration,
}
#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
pub struct SpanExit {
pub id: SpanId,
pub time: std::time::Duration,
}
#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
pub struct NewSpan {
pub id: SpanId,
pub call_id: ResourceId,
pub parent_id: Option<SpanId>,
pub thread_id: ResourceId,
}
#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
pub struct SpanClose {
pub id: SpanId,
pub time: std::time::Duration,
}
#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, Hash)]
pub struct ResourceId(pub(crate) usize);
impl ResourceId {
pub fn to_usize(self) -> usize {
self.0
}
}

19
tracing-trace/src/error.rs Normal file
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@ -0,0 +1,19 @@
#[derive(Debug)]
pub enum Error {
Json(serde_json::Error),
}
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str("error de/serializing trace entry:")?;
match self {
Error::Json(error) => std::fmt::Display::fmt(&error, f),
}
}
}
impl From<serde_json::Error> for Error {
fn from(value: serde_json::Error) -> Self {
Self::Json(value)
}
}

152
tracing-trace/src/layer.rs Normal file
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@ -0,0 +1,152 @@
use std::borrow::Cow;
use std::collections::HashMap;
use std::io::Write;
use std::ops::ControlFlow;
use std::sync::RwLock;
use tracing::span::{Attributes, Id as TracingId};
use tracing::{Metadata, Subscriber};
use tracing_subscriber::layer::Context;
use tracing_subscriber::Layer;
use crate::entry::{
Entry, NewCallsite, NewSpan, NewThread, ResourceId, SpanClose, SpanEnter, SpanExit, SpanId,
};
use crate::{Error, Trace};
/// Layer that measures the time spent in spans.
pub struct TraceLayer {
sender: std::sync::mpsc::Sender<Entry>,
callsites: RwLock<HashMap<OpaqueIdentifier, ResourceId>>,
start_time: std::time::Instant,
// TODO: kero add handle to allocator stats here
}
impl<W: Write> Trace<W> {
pub fn new(writer: W) -> (Self, TraceLayer) {
let (sender, receiver) = std::sync::mpsc::channel();
let trace = Trace { writer, receiver };
let layer = TraceLayer {
sender,
callsites: Default::default(),
start_time: std::time::Instant::now(),
};
(trace, layer)
}
pub fn receive(&mut self) -> Result<ControlFlow<(), ()>, Error> {
let Ok(entry) = self.receiver.recv() else {
return Ok(ControlFlow::Break(()));
};
self.write(entry)?;
Ok(ControlFlow::Continue(()))
}
pub fn write(&mut self, entry: Entry) -> Result<(), Error> {
Ok(serde_json::ser::to_writer(&mut self.writer, &entry)?)
}
pub fn try_receive(&mut self) -> Result<ControlFlow<(), ()>, Error> {
let Ok(entry) = self.receiver.try_recv() else {
return Ok(ControlFlow::Break(()));
};
self.write(entry)?;
Ok(ControlFlow::Continue(()))
}
pub fn flush(&mut self) -> Result<(), std::io::Error> {
self.writer.flush()
}
}
#[derive(PartialEq, Eq, Hash)]
enum OpaqueIdentifier {
Thread(std::thread::ThreadId),
Call(tracing::callsite::Identifier),
}
impl TraceLayer {
fn resource_id(&self, opaque: OpaqueIdentifier) -> Option<ResourceId> {
self.callsites.read().unwrap().get(&opaque).copied()
}
fn register_resource_id(&self, opaque: OpaqueIdentifier) -> ResourceId {
let mut map = self.callsites.write().unwrap();
let len = map.len();
*map.entry(opaque).or_insert(ResourceId(len))
}
fn elapsed(&self) -> std::time::Duration {
self.start_time.elapsed()
}
fn send(&self, entry: Entry) {
// we never care that the other end hanged on us
let _ = self.sender.send(entry);
}
fn register_callsite(&self, metadata: &'static Metadata<'static>) -> ResourceId {
let call_id = self.register_resource_id(OpaqueIdentifier::Call(metadata.callsite()));
let module_path = metadata.module_path();
let file = metadata.file();
let line = metadata.line();
let name = metadata.name();
let target = metadata.target();
self.send(Entry::NewCallsite(NewCallsite {
call_id,
module_path: module_path.map(Cow::Borrowed),
file: file.map(Cow::Borrowed),
line,
name: Cow::Borrowed(name),
target: Cow::Borrowed(target),
}));
call_id
}
fn register_thread(&self) -> ResourceId {
let thread_id = std::thread::current().id();
let name = std::thread::current().name().map(ToOwned::to_owned);
let thread_id = self.register_resource_id(OpaqueIdentifier::Thread(thread_id));
self.send(Entry::NewThread(NewThread { thread_id, name }));
thread_id
}
}
impl<S> Layer<S> for TraceLayer
where
S: Subscriber,
{
fn on_new_span(&self, attrs: &Attributes<'_>, id: &TracingId, _ctx: Context<'_, S>) {
let call_id = self
.resource_id(OpaqueIdentifier::Call(attrs.metadata().callsite()))
.unwrap_or_else(|| self.register_callsite(attrs.metadata()));
let thread_id = self
.resource_id(OpaqueIdentifier::Thread(std::thread::current().id()))
.unwrap_or_else(|| self.register_thread());
let parent_id = attrs
.parent()
.cloned()
.or_else(|| tracing::Span::current().id())
.map(|id| SpanId::from(&id));
self.send(Entry::NewSpan(NewSpan { id: id.into(), call_id, parent_id, thread_id }));
}
fn on_enter(&self, id: &TracingId, _ctx: Context<'_, S>) {
// TODO kero: add memory here
self.send(Entry::SpanEnter(SpanEnter { id: id.into(), time: self.elapsed() }))
}
fn on_exit(&self, id: &TracingId, _ctx: Context<'_, S>) {
// TODO kero: add memory here
self.send(Entry::SpanExit(SpanExit { id: id.into(), time: self.elapsed() }))
}
fn on_close(&self, id: TracingId, _ctx: Context<'_, S>) {
self.send(Entry::SpanClose(SpanClose { id: Into::into(&id), time: self.elapsed() }))
}
}

40
tracing-trace/src/lib.rs Normal file
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@ -0,0 +1,40 @@
use std::io::{Read, Write};
use entry::Entry;
pub mod entry;
mod error;
pub mod layer;
pub mod processor;
pub use error::Error;
pub struct Trace<W: Write> {
writer: W,
receiver: std::sync::mpsc::Receiver<Entry>,
}
pub struct TraceReader<R: Read> {
reader: R,
}
impl<R: Read> TraceReader<R> {
pub fn new(reader: R) -> Self {
Self { reader }
}
fn read(&mut self) -> Option<Result<Entry, Error>> {
serde_json::Deserializer::from_reader(&mut self.reader)
.into_iter()
.next()
.map(|res| res.map_err(Into::into))
}
}
impl<R: Read> Iterator for TraceReader<R> {
type Item = Result<Entry, Error>;
fn next(&mut self) -> Option<Self::Item> {
self.read()
}
}

133
tracing-trace/src/main.rs Normal file
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@ -0,0 +1,133 @@
use tracing::{instrument, Span};
use tracing_error::{ErrorLayer, InstrumentResult, SpanTrace, TracedError};
#[instrument(level = "trace", target = "profile::indexing")]
fn foo() -> Result<(), TracedError<Error>> {
let _ = bar(40, 2);
bar(40, 2)
}
#[derive(Debug)]
pub enum Error {
XTooBig,
}
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str("x too big")
}
}
impl std::error::Error for Error {}
#[instrument(level = "trace", target = "profile::indexing")]
fn bar(x: u32, y: u32) -> Result<(), TracedError<Error>> {
let handle_ok = spawn_in_current_scope(move || baz(y));
let handle = spawn_in_current_scope(move || baz(x + y));
handle_ok.join().unwrap().and(handle.join().unwrap())
}
pub fn spawn_in_current_scope<F, T>(f: F) -> std::thread::JoinHandle<T>
where
F: FnOnce() -> T + Send + 'static,
T: Send + 'static,
{
let current = Span::current();
std::thread::spawn(move || {
let span = tracing::trace_span!(parent: &current, "thread_spawn", id = ?std::thread::current().id(), name = tracing::field::Empty);
if let Some(name) = std::thread::current().name() {
span.record("name", name);
}
span.in_scope(f)
})
}
#[instrument(level = "trace", target = "profile::indexing")]
fn baz(x: u32) -> Result<(), TracedError<Error>> {
if x > 10 {
fibo_recursive(10);
return Err(Error::XTooBig).in_current_span();
}
Ok(())
}
#[instrument(level = "trace", target = "profile::indexing")]
fn fibo_recursive(n: u32) -> u32 {
if n == 0 {
return 1;
}
if n == 1 {
return 2;
}
return fibo_recursive(n - 1) - fibo_recursive(n - 2);
}
use tracing_error::ExtractSpanTrace as _;
use tracing_subscriber::layer::SubscriberExt as _;
use tracing_trace::processor;
fn on_panic(info: &std::panic::PanicInfo) {
let info = info.to_string();
let trace = SpanTrace::capture();
tracing::error!(%info, %trace);
}
fn main() {
let (mut trace, profiling_layer) =
tracing_trace::Trace::new(std::fs::File::create("trace.json").unwrap());
let subscriber = tracing_subscriber::registry()
// any number of other subscriber layers may be added before or
// after the `ErrorLayer`...
.with(ErrorLayer::default())
.with(profiling_layer)
/*.with(
tracing_subscriber::fmt::layer()
.with_line_number(true)
.with_span_events(FmtSpan::FULL), /*.with_filter(
tracing_subscriber::filter::LevelFilter::from_level(tracing::Level::TRACE).and(
tracing_subscriber::filter::Targets::new()
.with_target("profile", tracing::Level::TRACE)
.not(),
),
)*/
)*/;
// set the subscriber as the default for the application
tracing::subscriber::set_global_default(subscriber).unwrap();
std::panic::set_hook(Box::new(on_panic));
let res = foo();
if let Err(error) = res {
print_extracted_spantraces(&error)
}
while trace.try_receive().unwrap().is_continue() {}
trace.flush().unwrap();
let trace = tracing_trace::TraceReader::new(std::fs::File::open("trace.json").unwrap());
let profile = processor::firefox_profiler::to_firefox_profile(trace, "test").unwrap();
serde_json::to_writer(std::fs::File::create("processed.json").unwrap(), &profile).unwrap();
}
fn print_extracted_spantraces(error: &(dyn std::error::Error + 'static)) {
let mut error = Some(error);
let mut ind = 0;
eprintln!("Error:");
while let Some(err) = error {
if let Some(spantrace) = err.span_trace() {
eprintln!("found a spantrace:\n{}", color_spantrace::colorize(spantrace));
} else {
eprintln!("{:>4}: {}", ind, err);
}
error = err.source();
ind += 1;
}
}

255
tracing-trace/src/processor/firefox_profiler.rs Normal file
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@ -0,0 +1,255 @@
use std::collections::HashMap;
use fxprof_processed_profile::{
CategoryPairHandle, CpuDelta, Frame, FrameFlags, FrameInfo, MarkerDynamicField,
MarkerFieldFormat, MarkerLocation, MarkerSchema, MarkerSchemaField, Profile, ProfilerMarker,
ReferenceTimestamp, SamplingInterval, StringHandle, Timestamp,
};
use serde_json::json;
use crate::entry::{
Entry, NewCallsite, NewSpan, ResourceId, SpanClose, SpanEnter, SpanExit, SpanId,
};
use crate::{Error, TraceReader};
pub fn to_firefox_profile<R: std::io::Read>(
trace: TraceReader<R>,
app: &str,
) -> Result<Profile, Error> {
let mut profile = Profile::new(
app,
ReferenceTimestamp::from_millis_since_unix_epoch(0.0),
SamplingInterval::from_nanos(15),
);
let mut last_timestamp = Timestamp::from_nanos_since_reference(0);
let main = profile.add_process(app, 0, last_timestamp);
let mut calls = HashMap::new();
let mut threads = HashMap::new();
let mut spans = HashMap::new();
let category = profile.add_category("general", fxprof_processed_profile::CategoryColor::Blue);
let subcategory = profile.add_subcategory(category, "subcategory");
// TODO kero: add counters profile.add_counters + last_memory_value
for entry in trace {
let entry = entry?;
match entry {
Entry::NewCallsite(callsite) => {
let string_handle = profile.intern_string(callsite.name.as_ref());
calls.insert(callsite.call_id, (callsite, string_handle));
}
Entry::NewThread(thread) => {
let thread_handle = profile.add_thread(
main,
thread.thread_id.to_usize() as u32,
last_timestamp,
threads.is_empty(),
);
if let Some(name) = &thread.name {
profile.set_thread_name(thread_handle, name)
}
threads.insert(thread.thread_id, thread_handle);
}
Entry::NewSpan(span) => {
spans.insert(span.id, (span, SpanStatus::Outside));
}
Entry::SpanEnter(SpanEnter { id, time }) => {
let (_span, status) = spans.get_mut(&id).unwrap();
let SpanStatus::Outside = status else {
continue;
};
*status = SpanStatus::Inside(time);
last_timestamp = Timestamp::from_nanos_since_reference(time.as_nanos() as u64);
/* TODO kero: compute delta and update them
profile.add_counter_sample(
counter,
timestamp,
value_delta,
number_of_operations_delta,
)
*/
}
Entry::SpanExit(SpanExit { id, time }) => {
let (span, status) = spans.get_mut(&id).unwrap();
let SpanStatus::Inside(begin) = status else {
continue;
};
last_timestamp = Timestamp::from_nanos_since_reference(time.as_nanos() as u64);
let begin = *begin;
*status = SpanStatus::Outside;
let span = *span;
let thread_handle = threads.get(&span.thread_id).unwrap();
let frames = make_frames(span, &spans, &calls, subcategory);
profile.add_sample(
*thread_handle,
to_timestamp(begin),
frames.iter().rev().cloned(),
CpuDelta::ZERO,
1,
);
profile.add_sample(
*thread_handle,
to_timestamp(time),
frames.iter().rev().cloned(),
CpuDelta::from_nanos((time - begin).as_nanos() as u64),
1,
);
/* TODO kero: compute delta and update them
profile.add_counter_sample(
counter,
timestamp,
value_delta,
number_of_operations_delta,
)
*/
let (callsite, _) = calls.get(&span.call_id).unwrap();
let marker = SpanMarker { callsite, span: &span };
profile.add_marker_with_stack(
*thread_handle,
&callsite.name,
marker,
fxprof_processed_profile::MarkerTiming::Interval(
to_timestamp(begin),
to_timestamp(time),
),
frames.iter().rev().cloned(),
)
}
Entry::SpanClose(SpanClose { id, time }) => {
spans.remove(&id);
last_timestamp = Timestamp::from_nanos_since_reference(time.as_nanos() as u64);
}
}
}
Ok(profile)
}
fn to_timestamp(time: std::time::Duration) -> Timestamp {
Timestamp::from_nanos_since_reference(time.as_nanos() as u64)
}
fn make_frames(
span: NewSpan,
spans: &HashMap<SpanId, (NewSpan, SpanStatus)>,
calls: &HashMap<ResourceId, (NewCallsite, StringHandle)>,
subcategory: CategoryPairHandle,
) -> Vec<FrameInfo> {
let mut frames = Vec::new();
let mut current_span = span;
loop {
let frame = make_frame(current_span, calls, subcategory);
frames.push(frame);
if let Some(parent) = current_span.parent_id {
current_span = spans.get(&parent).unwrap().0;
} else {
break;
}
}
frames
}
fn make_frame(
span: NewSpan,
calls: &HashMap<ResourceId, (NewCallsite, StringHandle)>,
subcategory: CategoryPairHandle,
) -> FrameInfo {
let (_, call) = calls.get(&span.call_id).unwrap();
FrameInfo { frame: Frame::Label(*call), category_pair: subcategory, flags: FrameFlags::empty() }
}
#[derive(Debug, Clone, Copy)]
enum SpanStatus {
Outside,
Inside(std::time::Duration),
}
struct SpanMarker<'a> {
span: &'a NewSpan,
callsite: &'a NewCallsite,
}
impl<'a> ProfilerMarker for SpanMarker<'a> {
const MARKER_TYPE_NAME: &'static str = "span";
fn schema() -> MarkerSchema {
let fields = vec![
MarkerSchemaField::Dynamic(MarkerDynamicField {
key: "filename",
label: "File name",
format: MarkerFieldFormat::FilePath,
searchable: true,
}),
MarkerSchemaField::Dynamic(MarkerDynamicField {
key: "line",
label: "Line",
format: MarkerFieldFormat::Integer,
searchable: true,
}),
MarkerSchemaField::Dynamic(MarkerDynamicField {
key: "module_path",
label: "Module path",
format: MarkerFieldFormat::String,
searchable: true,
}),
MarkerSchemaField::Dynamic(MarkerDynamicField {
key: "span_id",
label: "Span ID",
format: MarkerFieldFormat::Integer,
searchable: true,
}),
MarkerSchemaField::Dynamic(MarkerDynamicField {
key: "thread_id",
label: "Thread ID",
format: MarkerFieldFormat::Integer,
searchable: true,
}),
];
MarkerSchema {
type_name: Self::MARKER_TYPE_NAME,
locations: vec![
MarkerLocation::MarkerTable,
MarkerLocation::MarkerChart,
MarkerLocation::TimelineOverview,
],
chart_label: None,
tooltip_label: Some("{marker.name} - {marker.data.filename}:{marker.data.line}"),
table_label: Some("{marker.data.filename}:{marker.data.line}"),
fields,
}
}
fn json_marker_data(&self) -> serde_json::Value {
let filename = self.callsite.file.as_deref();
let line = self.callsite.line;
let module_path = self.callsite.module_path.as_deref();
let span_id = self.span.id;
let thread_id = self.span.thread_id;
json!({
"type": Self::MARKER_TYPE_NAME,
"filename": filename,
"line": line,
"module_path": module_path,
"span_id": span_id,
"thread_id": thread_id,
})
}
}

128
tracing-trace/src/processor/fmt.rs Normal file
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@ -0,0 +1,128 @@
use std::collections::HashMap;
use std::io::Read;
use crate::entry::{
Entry, NewCallsite, NewSpan, NewThread, ResourceId, SpanClose, SpanEnter, SpanExit, SpanId,
};
use crate::{Error, TraceReader};
#[derive(Debug, Clone, Copy)]
enum SpanStatus {
Outside,
Inside(std::time::Duration),
}
pub fn print_trace<R: Read>(trace: TraceReader<R>) -> Result<(), Error> {
let mut calls = HashMap::new();
let mut threads = HashMap::new();
let mut spans = HashMap::new();
for entry in trace {
let entry = entry?;
match entry {
Entry::NewCallsite(callsite) => {
calls.insert(callsite.call_id, callsite);
}
Entry::NewThread(NewThread { thread_id, name }) => {
threads.insert(thread_id, name);
}
Entry::NewSpan(span) => {
spans.insert(span.id, (span, SpanStatus::Outside));
}
Entry::SpanEnter(SpanEnter { id, time }) => {
let (span, status) = spans.get_mut(&id).unwrap();
let SpanStatus::Outside = status else {
continue;
};
*status = SpanStatus::Inside(time);
let span = *span;
println!(
"[{}]{}::{} <-",
print_thread(&threads, span.thread_id),
print_backtrace(&spans, &calls, &span),
print_span(&calls, &span)
);
}
Entry::SpanExit(SpanExit { id, time }) => {
let (span, status) = spans.get_mut(&id).unwrap();
let SpanStatus::Inside(begin) = status else {
continue;
};
let begin = *begin;
*status = SpanStatus::Outside;
let span = *span;
println!(
"[{}]{}::{} -> {}",
print_thread(&threads, span.thread_id),
print_backtrace(&spans, &calls, &span),
print_span(&calls, &span),
print_duration(time - begin),
)
}
Entry::SpanClose(SpanClose { id, time: _ }) => {
spans.remove(&id);
}
}
}
Ok(())
}
fn print_thread(threads: &HashMap<ResourceId, Option<String>>, thread_id: ResourceId) -> String {
let thread = threads.get(&thread_id).unwrap();
let thread =
thread.as_ref().cloned().unwrap_or_else(|| format!("ThreadId({})", thread_id.to_usize()));
thread
}
fn print_backtrace(
spans: &HashMap<SpanId, (NewSpan, SpanStatus)>,
calls: &HashMap<ResourceId, NewCallsite>,
span: &NewSpan,
) -> String {
let mut parents = Vec::new();
let mut current = span.parent_id;
while let Some(current_id) = &current {
let (span, _) = spans.get(current_id).unwrap();
let callsite = calls.get(&span.call_id).unwrap();
parents.push(callsite.name.clone());
current = span.parent_id;
}
let x: Vec<String> = parents.into_iter().rev().map(|x| x.to_string()).collect();
x.join("::")
}
fn print_span(calls: &HashMap<ResourceId, NewCallsite>, span: &NewSpan) -> String {
let callsite = calls.get(&span.call_id).unwrap();
match (callsite.file.clone(), callsite.line) {
(Some(file), None) => format!("{} ({})", callsite.name, file),
(Some(file), Some(line)) => format!("{} ({}:{})", callsite.name, file, line),
_ => callsite.name.to_string(),
}
}
fn print_duration(duration: std::time::Duration) -> String {
if duration.as_nanos() < 1000 {
format!("{}ns", duration.as_nanos())
} else if duration.as_micros() < 1000 {
format!("{}μs", duration.as_micros())
} else if duration.as_millis() < 1000 {
format!("{}ms", duration.as_millis())
} else if duration.as_secs() < 120 {
format!("{}s", duration.as_secs())
} else if duration.as_secs_f64() / 60.0 < 60.0 {
format!("{}min", duration.as_secs_f64() / 60.0)
} else if duration.as_secs_f64() / 3600.0 < 8.0 {
format!("{}h", duration.as_secs_f64() / 3600.0)
} else {
format!("{}d", duration.as_secs_f64() / 3600.0 / 24.0)
}
}

2
tracing-trace/src/processor/mod.rs Normal file
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@ -0,0 +1,2 @@
pub mod firefox_profiler;
pub mod fmt;