Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-06 06:00:15 +01:00
Code Issues Projects Releases Packages Wiki Activity

Added more complex profiling metadata.

Browse source
This commit is contained in:
Clark Gaebel 2014-09-16 14:03:35 -07:00
parent 787a683365
commit 6bc63d47cd
10 changed files with 123 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

136
components/util/time.rs
View file

@ -11,6 +11,7 @@ use std::f64;
use std::iter::AdditiveIterator;
use std::io::timer::sleep;
use task::{spawn_named};
use url::Url;
// front-end representation of the profiler used to communicate with the profiler
#[deriving(Clone)]
@ -23,9 +24,37 @@ impl TimeProfilerChan {
}
}
#[deriving(PartialEq, Clone, PartialOrd, Eq, Ord)]
pub struct TimerMetadata {
url: String,
iframe: bool,
first_reflow: bool,
}
pub trait Formatable {
fn format(&self) -> String;
}
impl Formatable for Option<TimerMetadata> {
fn format(&self) -> String {
match self {
// TODO(cgaebel): Center-align in the format strings as soon as rustc supports it.
&Some(ref meta) => {
let url = meta.url.as_slice();
let first_reflow = if meta.first_reflow { " yes" } else { " no " };
let iframe = if meta.iframe { " yes" } else { " no " };
format!(" {:14} {:9} {:30}", first_reflow, iframe, url)
},
&None =>
format!(" {:14} {:9} {:30}", " N/A", " N/A", " N/A")
}
}
}
#[deriving(Clone)]
pub enum TimeProfilerMsg {
/// Normal message used for reporting time
TimeMsg(TimeProfilerCategory, f64),
TimeMsg((TimeProfilerCategory, Option<TimerMetadata>), f64),
/// Message used to force print the profiling metrics
PrintMsg,
/// Tells the profiler to shut down.
@ -36,9 +65,7 @@ pub enum TimeProfilerMsg {
#[deriving(PartialEq, Clone, PartialOrd, Eq, Ord)]
pub enum TimeProfilerCategory {
CompositingCategory,
LayoutQueryCategory,
LayoutPerformCategory,
LayoutMaxSelectorMatchesCategory,
LayoutStyleRecalcCategory,
LayoutSelectorMatchCategory,
LayoutTreeBuilderCategory,
@ -47,47 +74,16 @@ pub enum TimeProfilerCategory {
LayoutParallelWarmupCategory,
LayoutShapingCategory,
LayoutDispListBuildCategory,
GfxRegenAvailableFontsCategory,
RenderingDrawingCategory,
RenderingPrepBuffCategory,
RenderingCategory,
// FIXME(rust#8803): workaround for lack of CTFE function on enum types to return length
NumBuckets,
}
impl TimeProfilerCategory {
// convenience function to not have to cast every time
pub fn num_buckets() -> uint {
NumBuckets as uint
}
// enumeration of all TimeProfilerCategory types
fn empty_buckets() -> TimeProfilerBuckets {
let mut buckets = TreeMap::new();
buckets.insert(CompositingCategory, vec!());
buckets.insert(LayoutQueryCategory, vec!());
buckets.insert(LayoutPerformCategory, vec!());
buckets.insert(LayoutMaxSelectorMatchesCategory, vec!());
buckets.insert(LayoutStyleRecalcCategory, vec!());
buckets.insert(LayoutSelectorMatchCategory, vec!());
buckets.insert(LayoutTreeBuilderCategory, vec!());
buckets.insert(LayoutMainCategory, vec!());
buckets.insert(LayoutParallelWarmupCategory, vec!());
buckets.insert(LayoutShapingCategory, vec!());
buckets.insert(LayoutDamagePropagateCategory, vec!());
buckets.insert(LayoutDispListBuildCategory, vec!());
buckets.insert(GfxRegenAvailableFontsCategory, vec!());
buckets.insert(RenderingDrawingCategory, vec!());
buckets.insert(RenderingPrepBuffCategory, vec!());
buckets.insert(RenderingCategory, vec!());
buckets
}
impl Formatable for TimeProfilerCategory {
// some categories are subcategories of LayoutPerformCategory
// and should be printed to indicate this
pub fn format(self) -> String {
let padding = match self {
fn format(&self) -> String {
let padding = match *self {
LayoutStyleRecalcCategory |
LayoutMainCategory |
LayoutDispListBuildCategory |
@ -98,11 +94,26 @@ impl TimeProfilerCategory {
LayoutTreeBuilderCategory => "| + ",
_ => ""
};
format!("{:s}{:?}", padding, self)
let name = match *self {
CompositingCategory => "Compositing",
LayoutPerformCategory => "Layout",
LayoutStyleRecalcCategory => "Style Recalc",
LayoutSelectorMatchCategory => "Selector Matching",
LayoutTreeBuilderCategory => "Tree Building",
LayoutDamagePropagateCategory => "Damage Propagation",
LayoutMainCategory => "Primary Layout Pass",
LayoutParallelWarmupCategory => "Parallel Warmup",
LayoutShapingCategory => "Shaping",
LayoutDispListBuildCategory => "Display List Construction",
RenderingDrawingCategory => "Draw",
RenderingPrepBuffCategory => "Buffer Prep",
RenderingCategory => "Rendering",
};
format!("{:s}{}", padding, name)
}
}
type TimeProfilerBuckets = TreeMap<TimeProfilerCategory, Vec<f64>>;
type TimeProfilerBuckets = TreeMap<(TimeProfilerCategory, Option<TimerMetadata>), Vec<f64>>;
// back end of the profiler that handles data aggregation and performance metrics
pub struct TimeProfiler {
@ -151,7 +162,7 @@ impl TimeProfiler {
pub fn new(port: Receiver<TimeProfilerMsg>) -> TimeProfiler {
TimeProfiler {
port: port,
buckets: TimeProfilerCategory::empty_buckets(),
buckets: TreeMap::new(),
last_msg: None,
}
}
@ -170,9 +181,18 @@ impl TimeProfiler {
}
}
fn find_or_insert(&mut self, k: (TimeProfilerCategory, Option<TimerMetadata>), t: f64) {
match self.buckets.find_mut(&k) {
None => {},
Some(v) => { v.push(t); return; },
}
self.buckets.insert(k, vec!(t));
}
fn handle_msg(&mut self, msg: TimeProfilerMsg) -> bool {
match msg {
TimeMsg(category, t) => self.buckets.find_mut(&category).unwrap().push(t),
match msg.clone() {
TimeMsg(k, t) => self.find_or_insert(k, t),
PrintMsg => match self.last_msg {
// only print if more data has arrived since the last printout
Some(TimeMsg(..)) => self.print_buckets(),
@ -185,10 +205,11 @@ impl TimeProfiler {
}
fn print_buckets(&mut self) {
println!("{:39s} {:15s} {:15s} {:15s} {:15s} {:15s}",
"_category_", "_mean (ms)_", "_median (ms)_",
"_min (ms)_", "_max (ms)_", "_bucket size_");
for (category, data) in self.buckets.mut_iter() {
println!("{:35s} {:14} {:9} {:30} {:15s} {:15s} {:-15s} {:-15s} {:-15s}",
"_category_", "_incremental?_", "_iframe?_",
" _url_", " _mean (ms)_", " _median (ms)_",
" _min (ms)_", " _max (ms)_", " _events_");
for (&(ref category, ref meta), ref mut data) in self.buckets.mut_iter() {
data.sort_by(|a, b| {
if a < b {
Less
@ -200,11 +221,11 @@ impl TimeProfiler {
if data_len > 0 {
let (mean, median, min, max) =
(data.iter().map(|&x|x).sum() / (data_len as f64),
(*data)[data_len / 2],
data.as_slice()[data_len / 2],
data.iter().fold(f64::INFINITY, |a, &b| a.min(b)),
data.iter().fold(-f64::INFINITY, |a, &b| a.max(b)));
println!("{:-35s}: {:15.4f} {:15.4f} {:15.4f} {:15.4f} {:15u}",
category.format(), mean, median, min, max, data_len);
println!("{:-35s}{} {:15.4f} {:15.4f} {:15.4f} {:15.4f} {:15u}",
category.format(), meta.format(), mean, median, min, max, data_len);
}
}
println!("");
@ -213,6 +234,8 @@ impl TimeProfiler {
pub fn profile<T>(category: TimeProfilerCategory,
// url, iframe?, first reflow?
meta: Option<(&Url, bool, bool)>,
time_profiler_chan: TimeProfilerChan,
callback: || -> T)
-> T {
@ -220,7 +243,13 @@ pub fn profile<T>(category: TimeProfilerCategory,
let val = callback();
let end_time = precise_time_ns();
let ms = (end_time - start_time) as f64 / 1000000f64;
time_profiler_chan.send(TimeMsg(category, ms));
let meta = meta.map(|(url, iframe, first_reflow)|
TimerMetadata {
url: url.serialize(),
iframe: iframe,
first_reflow: first_reflow,
});
time_profiler_chan.send(TimeMsg((category, meta), ms));
return val;
}
@ -234,10 +263,3 @@ pub fn time<T>(msg: &str, callback: || -> T) -> T{
}
return val;
}
// ensure that the order of the buckets matches the order of the enum categories
#[test]
fn check_order() {
let buckets = TimeProfilerCategory::empty_buckets();
assert!(buckets.len() == NumBuckets as uint);
}